IETF RMON MIB Working Group
Author:
Steve Waldbusser
Phone: +1-650-948-6500
Fax : +1-650-745-0671
Email: waldbusser@nextbeacon.com
Working Group Chair:
Andy Bierman
E-mail: ietf@andybierman.com
Working Group Mailing List: <rmonmib@ietf.org>
To subscribe send email to: <rmonmib-request@ietf.org>
The MIB module for managing remote monitoring
device implementations. This MIB module
extends the architecture introduced in the original
RMON MIB as specified in RFC 2819.
Copyright (C) The Internet Society (2006). This version of
this MIB module is part of RFC 4502; see the RFC itself for
full legal notices.
This version updates the proposed-standard version of the
RMON2 MIB (published as RFC 2021) by adding 2 new
enumerations to the nlMatrixTopNControlRateBase object and
4 new enumerations to the alMatrixTopNControlRateBase object.
These new enumerations support the creation of high-capacity
topN reports in the High Capacity RMON MIB [RFC3273].
Additionally, the following objects have been deprecated, as
they have not had enough independent implementations to
demonstrate interoperability to meet the requirements of a
Draft Standard:
probeDownloadFile
probeDownloadTFTPServer
probeDownloadAction
probeDownloadStatus
serialMode
serialProtocol
serialTimeout
serialModemInitString
serialModemHangUpString
serialModemConnectResp
serialModemNoConnectResp
serialDialoutTimeout
serialStatus
serialConnectDestIpAddress
serialConnectType
serialConnectDialString
serialConnectSwitchConnectSeq
serialConnectSwitchDisconnectSeq
serialConnectSwitchResetSeq
serialConnectOwner
serialConnectStatus
netConfigIPAddress
netConfigSubnetMask
netConfigStatus
netDefaultGateway
tokenRingMLStats2DroppedFrames
tokenRingMLStats2CreateTime
tokenRingPStats2DroppedFrames
tokenRingPStats2CreateTime
ringStationControl2DroppedFrames
ringStationControl2CreateTime
sourceRoutingStats2DroppedFrames
sourceRoutingStats2CreateTime
trapDestIndex
trapDestCommunity
trapDestProtocol
trapDestAddress
trapDestOwner
trapDestStatus
In addition, two corrections were made. The LastCreateTime
Textual Convention had been defined with a base type of
another textual convention, which isn't allowed in SMIv2. The
definition has been modified to use TimeTicks as the base
type.
Further, the SerialConfigEntry SEQUENCE definition included
sub-typing information that is not allowed in SMIv2. This
information has been deleted. Ranges were added to a number of
objects and textual-conventions to constrain their maximum
(and sometimes minimum) sizes. The addition of these ranges
documents existing practice for these objects. These objects
are:
ControlString
protocolDirID
protocolDirParameters
addressMapNetworkAddress
nlHostAddress
nlMatrixSDSourceAddress
nlMatrixSDDestAddress
nlMatrixDSSourceAddress
nlMatrixDSDestAddress
nlMatrixTopNSourceAddress
nlMatrixTopNDestAddress
alHostEntry
alMatrixSDEntry
alMatrixDSEntry
alMatrixTopNSourceAddress
alMatrixTopNDestAddress
Finally, the TimeFilter TC has been updated to encourage agent
implementations that allow a MIB walk to behave well even when
performed by an application that is not aware of the special
TimeFilter semantics.
Added new enumerations to support the High-Capacity RMON
MIB as defined in RFC 3273. Also fixed some typos and
added clarifications.
Original version. Published as RFC 2021.
This TC describes an object that counts events with the
following semantics: objects of this type will be set to
zero(0) on creation and will thereafter count appropriate
events, wrapping back to zero(0) when the value 2^32 is
reached.
Provided that an application discovers the new object within
the minimum time to wrap, it can use the initial value as a
delta since it last polled the table of which this object is
part. It is important for a management station to be aware of
this minimum time and the actual time between polls, and to
discard data if the actual time is too long or there is no
defined minimum time.
Typically, this TC is used in tables where the INDEX space is
constantly changing and/or the TimeFilter mechanism is in use.
This TC describes an object that stores the value of the
sysUpTime object at the last time its entry was created.
This can be used for polling applications to determine that an
entry has been deleted and re-created between polls, causing
an otherwise undetectable discontinuity in the data.
If sysUpTime is reset to zero as a result of a re-
initialization of the network management (sub)system, then
the values of all LastCreateTime objects are also reset.
However, after approximately 497 days without a re-
initialization, the sysUpTime object will reach 2^^32-1 and
then increment to zero; in this case, existing values
of TimeStamp objects do not change. This can lead to
ambiguities in the value of TimeStamp objects.
To be used for the index to a table. Allows an application
to download only those rows changed since a particular time.
Note that this is not a history mechanism. Only current values
of underlying objects are returned; saved instance values
associated with particular values of sysUpTime are not.
An entry is considered changed if the value of any object in the
entry changes, if the row is created, or if any object in the
entry is created or deleted. Note that deleted entries cannot
be detected or downloaded.
A time-filtered conceptual table is created by inserting a
single object of SYNTAX TimeFilter as the first INDEX component
in a copy of an existing basic conceptual table (i.e., any
SEQUENCE without a TimeFilter INDEX component). Thus, for
each conceptual entry 'I' in the basic table, there exists N
conceptual entries in the time-filtered version, indexed N.I,
where 'N' is equal to the value of sysUpTime.
When an application retrieves conceptual instances from a
time-filtered table, and an INDEX value is provided for the
TimeFilter INDEX component 'N', the agent will only consider
returning basic conceptual entries (e.g., 'fooColumn.N.I') if
any column within the basic conceptual entry has changed since
sysUpTime 'N'. If not, the basic conceptual entry will
be ignored for the particular retrieval operation.
When sysUpTime is equal to zero, this table shall be empty.
One conceptual entry exists for each past value of sysUpTime,
except that the whole table is purged should sysUpTime wrap.
As an entry in a time-filtered table is updated (i.e., one of
the columns in the basic conceptual table is changed), new
conceptual entries are also created in the time-filtered version
(which still shares the now updated object values with all other
instances). The number of unique time-filtered instances that
are created is determined by the value of sysUpTime at which the
basic entry was last updated. One unique instance will exist
for each value of sysUpTime at the last update time for the row.
However, a new TimeFilter index instance is created for each new
sysUpTime value. The TimeFilter index values not associated
with entry updates are called duplicate time-filtered instances.
After some deployment experience, it has been determined that
a time-filtered table is more efficient if the agent
stops a MIB walk operation by skipping over rows with a
TimeFilter index value higher than the value in the received
GetNext/GetBulk request. That is, instead of incrementing a
TimeFilter index value, the agent will continue to the next
object or table. As a consequence, GetNext or GetBulk
operations will provide only one pass through a time-filtered
table.
It is suggested that an agent implement a time-filtered table
in this manner to improve performance and avoid a MIB walk
getting stuck in time-filtered tables. It is, however, still
acceptable for an agent to implement a time-filtered table in
the traditional manner (i.e., every conceptual time-filtered
instance is returned in GetNext and GetBulk PDU responses), and
management applications must be able to deal with such
traditional implementations.
See the appendix for further discussion of this textual
convention.
The following example is provided to demonstrate TimeFilter
behavior:
Consider the following basic conceptual table, basicFooTable.
(Note that the basic version of a time-filtered table may not
actually be defined.)
basicFooTable:
basicFooTable ...
INDEX { fooIndex }
BasicFooEntry {
fooIndex Integer32,
fooCounts Counter32
}
For this example, the basicFooTable contains two static
conceptual entries (fooIndex equals '1' and '2'), created at
time zero. It also contains one dynamic conceptual entry
(fooIndex equals '3'), which is created at time '3' and deleted
at time '7'.
The time-filtered version of the basicFooTable could be defined
as follows:
FooTable:
fooTable ...
INDEX { fooTimeMark, fooIndex }
FooEntry {
fooTimeMark TimeFilter,
fooIndex Integer32,
fooCounts Counter32
}
Note that entries exist in the time-filtered conceptual table
only if they actually exist in the underlying (basic) table.
For this example, the fooTable will have three underlying
basic entries (fooIndex == 1, 2, and 3), with the following
activity (for sysUpTime equal 0 to 9):
- fooEntry.N.1 is created at time '0' and most recently
updated at time '6' to the value '5'.
- fooEntry.N.2 is created at time '0' and most recently
updated at time '8' to the value '9'.
- fooEntry.N.3 is created at time '3', updated at time '5'
to the value '17', and deleted at time '7'.
The following tables show the values that would be returned for
MIB walk operations with various TimeFilter values, done at
different times. An application issues a retrieval request at
time 'T', with a TimeFilter value, 'N' (typically set to a lower
value, such as the value of sysUpTime at the last polling cycle).
The following values would be returned in a MIB walk of
fooCounts.N if T equals '0' and N equals '0':
fooCounts.N.I Value
==========================
fooCounts.0.1 0
fooCounts.0.2 0
Note that nothing is returned for fooCounts.0.3, since that
entry does not exist at sysUpTime equals '0'.
The following values would be returned in a full (traditional) MIB
walk of fooCounts.N if T equals '3' and N equals '0':
fooCounts.N.I Value
=======================
fooCounts.0.1 0
fooCounts.0.2 0
fooCounts.0.3 0
fooCounts.1.3 0
fooCounts.2.3 0
fooCounts.3.3 0
Note that there are no instances for T equals 1 or 2 for the
first two values of N, as these entries did not change
since they were created at time '0'.
Note that the current value for 'fooCounts.N.3' is returned
here, even for values of N less than '3' (when the entry was
created). The agent only considers the current existence of an
entry in the TimeFilter algorithm, not the time when the entry
was created.
Note that the instances 'fooCounts.0.3', 'fooCounts.1.3',
and 'fooCounts.2.3' are duplicates and can be suppressed by the
agent in a MIB walk.
The following values would be returned in a full (traditional)
MIB walk of fooCounts.N if T equals '6' and N equals '3':
fooCounts.N.I Value
=======================
fooCounts.3.1 5
fooCounts.3.3 17
fooCounts.4.1 5
fooCounts.4.3 17
fooCounts.5.1 5
fooCounts.5.3 17
fooCounts.6.1 5
Note that no instances for entry 'fooCounts.N.2' are returned,
since it has not changed since time '3'.
Note that all instances except 'fooCounts.5.3' and
'fooCounts.6.1' are duplicates and can be suppressed by the
agent in a MIB walk.
The following values would be returned in a full (traditional)
MIB walk of fooCounts.N if T equals '9' and N equals '6':
fooCounts.N.I Value
=======================
fooCounts.6.1 5
fooCounts.6.2 9
fooCounts.7.2 9
fooCounts.8.2 9
Note that no instances for entry 'fooCounts.N.3' are returned,
since it was deleted at time '7'.
Note that instances 'fooCounts.6.2' and 'fooCounts.7.2'
are duplicates and can be suppressed by the agent in a MIB
walk.
Identifies the source of the data that the associated
function is configured to analyze. This source can be any
interface on this device.
In order to identify a particular interface, this
object shall identify the instance of the ifIndex
object, defined in [RFC2863], for the desired interface.
For example, if an entry were to receive data from
interface #1, this object would be set to ifIndex.1.
This data type is used to communicate with a modem or a
serial data switch. A ControlString contains embedded
commands to control how the device will interact with the
remote device through the serial interface. Commands are
represented as two-character sequences beginning with
the '^' character.
The following commands are recognized by the device (note
that command characters are case sensitive):
^s Send string that follows, which is terminated by the
next command or the end of string.
^c Delay for the number of seconds that follows. Toss
out any data received rather than store it in a
buffer for parsing.
^t Set timeout to the value represented by the decimal
digits that follow. The default timeout is 20
seconds. Note that this timeout may be overridden
by a smaller serialTimeout configured for the
associated serial interface (see serialConfigTable).
^w Wait for the reply string that follows, which is
terminated by the next command or the end of string.
Partial and case-insensitive matching is applied, i.e.,
if the reply string (any case combination) is found
anywhere in the received string, then the a match is
found. If the current timeout elapses without a match,
then the remaining control string is ignored.
^! The ^ character.
^d Delay the number of seconds specified by the decimal
digits that follow.
^b Send break for the number of milliseconds specified by
the decimal digits that follow. If no digits follow,
break will be enforced for 250 milliseconds by default.
The following ASCII control characters may be inserted into
the '^s' send string or the '^w' reply string:
^@ 0x00
^A 0x01
..
^M 0x0D
..
^Z 0x1A
^[ 0x1B
^ 0x1C
^] 0x1D
^^ 0x1E
^_ 0x1F
Binary data may also be inserted into the data stream. The
control sequence for each byte of binary data is ^0x##, where
## is the hexadecimal representation of the data byte. Two
ASCII characters (0-9, a-f, A-F) must follow the '^0x'
control prefix. For example, '^0x0D^0x0A' is interpreted as a
carriage return followed by a line feed.
Contains the RMON-2 augmentations to RMON-1.
Contains the RMON-2 augmentations to RMON-1.
readonly
The total number of frames that were received by the probe
and therefore not accounted for in the *StatsDropEvents, but
that the probe chose not to count for this entry for
whatever reason. Most often, this event occurs when the
probe is out of some resources and decides to shed load from
this collection.
This count does not include packets that were not counted
because they had MAC-layer errors.
Note that, unlike the dropEvents counter, this number is the
exact number of frames dropped.
readonly
The value of sysUpTime when this control entry was last
activated. This can be used by the management station to
ensure that the table has not been deleted and recreated
between polls.
Contains the RMON-2 augmentations to RMON-1.
This table has been deprecated, as it has not had enough
independent implementations to demonstrate interoperability
to meet the requirements of a Draft Standard.
Contains the RMON-2 augmentations to RMON-1.
readonly
The total number of frames that were received by the probe
and therefore not accounted for in the *StatsDropEvents, but
that the probe chose not to count for this entry for
whatever reason. Most often, this event occurs when the
probe is out of some resources and decides to shed load from
this collection.
This count does not include packets that were not counted
because they had MAC-layer errors.
Note that, unlike the dropEvents counter, this number is the
exact number of frames dropped.
readonly
The value of sysUpTime when this control entry was last
activated. This can be used by the management station to
ensure that the table has not been deleted and recreated
between polls.
Contains the RMON-2 augmentations to RMON-1.
This table has been deprecated, as it has not had enough
independent implementations to demonstrate interoperability
to meet the requirements of a Draft Standard.
Contains the RMON-2 augmentations to RMON-1.
readonly
The total number of frames that were received by the probe
and therefore not accounted for in the *StatsDropEvents, but
that the probe chose not to count for this entry for
whatever reason. Most often, this event occurs when the
probe is out of some resources and decides to shed load from
this collection.
This count does not include packets that were not counted
because they had MAC-layer errors.
Note that, unlike the dropEvents counter, this number is the
exact number of frames dropped.
readonly
The value of sysUpTime when this control entry was last
activated. This can be used by the management station to
ensure that the table has not been deleted and recreated
between polls.
Contains the RMON-2 augmentations to RMON-1.
Contains the RMON-2 augmentations to RMON-1.
readonly
The total number of frames that were received by the probe
and therefore not accounted for in the *StatsDropEvents, but
that the probe chose not to count for this entry for
whatever reason. Most often, this event occurs when the
probe is out of some resources and decides to shed load from
this collection.
This count does not include packets that were not counted
because they had MAC-layer errors.
Note that, unlike the dropEvents counter, this number is the
exact number of frames dropped.
Contains the RMON-2 augmentations to RMON-1.
Contains the RMON-2 augmentations to RMON-1.
readonly
The total number of frames that were received by the probe
and therefore not accounted for in the *StatsDropEvents, but
that the probe chose not to count for this entry for
whatever reason. Most often, this event occurs when the
probe is out of some resources and decides to shed load from
this collection.
This count does not include packets that were not counted
because they had MAC-layer errors.
Note that, unlike the dropEvents counter, this number is the
exact number of frames dropped.
readonly
The value of sysUpTime when this control entry was last
activated. This can be used by the management station to
ensure that the table has not been deleted and recreated
between polls.
Contains the RMON-2 augmentations to RMON-1.
Contains the RMON-2 augmentations to RMON-1.
readonly
The total number of frames that were received by the probe
and therefore not accounted for in the *StatsDropEvents, but
that the probe chose not to count for this entry for
whatever reason. Most often, this event occurs when the
probe is out of some resources and decides to shed load from
this collection.
This count does not include packets that were not counted
because they had MAC-layer errors.
Note that, unlike the dropEvents counter, this number is the
exact number of frames dropped.
readonly
The value of sysUpTime when this control entry was last
activated. This can be used by the management station to
ensure that the table has not been deleted and recreated
between polls.
Contains the RMON-2 augmentations to RMON-1.
Contains the RMON-2 augmentations to RMON-1.
readonly
The total number of frames that were received by the probe
and therefore not accounted for in the *StatsDropEvents, but
that the probe chose not to count for this entry for
whatever reason. Most often, this event occurs when the
probe is out of some resources and decides to shed load from
this collection.
This count does not include packets that were not counted
because they had MAC-layer errors.
Note that, unlike the dropEvents counter, this number is the
exact number of frames dropped.
readonly
The value of sysUpTime when this control entry was last
activated. This can be used by the management station to
ensure that the table has not been deleted and recreated
between polls.
Provides a variable-length packet filter feature to the
RMON-1 filter table.
Provides a variable-length packet filter feature to the
RMON-1 filter table.
readwrite0
When this object is set to a non-zero value, the filter that
it is associated with performs the following operations on
every packet:
1) If the packet doesn't match the protocol directory entry
identified by this object, discard the packet and exit
(i.e., discard the packet if it is not of the identified
protocol).
2) If the associated filterProtocolDirLocalIndex is non-zero
and the packet doesn't match the protocol directory
entry identified by that object, discard the packet and
exit.
3) If the packet matches, perform the regular filter
algorithm as if the beginning of this named protocol is
the beginning of the packet, potentially applying the
filterOffset value to move further into the packet.
readwrite0
When this object is set to a non-zero value, the filter that
it is associated with will discard the packet if the packet
doesn't match this protocol directory entry.
Contains the RMON-2 augmentations to RMON-1.
This table has been deprecated, as it has not had enough
independent implementations to demonstrate interoperability
to meet the requirements of a Draft Standard.
Contains the RMON-2 augmentations to RMON-1.
readonly
The total number of frames that were received by the probe
and therefore not accounted for in the *StatsDropEvents, but
that the probe chose not to count for this entry for
whatever reason. Most often, this event occurs when the
probe is out of some resources and decides to shed load from
this collection.
This count does not include packets that were not counted
because they had MAC-layer errors.
Note that, unlike the dropEvents counter, this number is the
exact number of frames dropped.
readonly
The value of sysUpTime when this control entry was last
activated. This can be used by the management station to
ensure that the table has not been deleted and recreated
between polls.
Contains the RMON-2 augmentations to RMON-1.
This table has been deprecated, as it has not had enough
independent implementations to demonstrate interoperability
to meet the requirements of a Draft Standard.
Contains the RMON-2 augmentations to RMON-1.
readonly
The total number of frames that were received by the probe
and therefore not accounted for in the *StatsDropEvents, but
that the probe chose not to count for this entry for
whatever reason. Most often, this event occurs when the
probe is out of some resources and decides to shed load from
this collection.
This count does not include packets that were not counted
because they had MAC-layer errors.
Note that, unlike the dropEvents counter, this number is the
exact number of frames dropped.
readonly
The value of sysUpTime when this control entry was last
activated. This can be used by the management station to
ensure that the table has not been deleted and recreated
between polls.
readonly
The value of sysUpTime at the time the protocol directory
was last modified, either through insertions or deletions,
or through modifications of the
protocolDirAddressMapConfig, protocolDirHostConfig, or
protocolDirMatrixConfig.
This table lists the protocols that this agent has the
capability to decode and count. There is one entry in this
table for each such protocol. These protocols represent
different network-layer, transport-layer, and higher-layer
protocols. The agent should boot up with this table
preconfigured with those protocols that it knows about and
wishes to monitor. Implementations are strongly encouraged to
support protocols higher than the network layer (at least for
the protocol distribution group), even for implementations
that don't support the application-layer groups.
A conceptual row in the protocolDirTable.
An example of the indexing of this entry is
protocolDirLocalIndex.8.0.0.0.1.0.0.8.0.2.0.0, which is the
encoding of a length of 8, followed by 8 subids encoding the
protocolDirID of 1.2048, followed by a length of 2 and the
2 subids encoding zero-valued parameters.
Note that some combinations of index values may result in an
index that exceeds 128 sub-identifiers in length, which exceeds
the maximum for the SNMP protocol. Implementations should take
care to avoid such combinations.
noaccess
A unique identifier for a particular protocol. Standard
identifiers will be defined in such a manner that they
can often be used as specifications for new protocols - i.e.,
a tree-structured assignment mechanism that matches the
protocol encapsulation 'tree' and that has algorithmic
assignment mechanisms for certain subtrees. See RFC 2074 for
more details.
Despite the algorithmic mechanism, the probe will only place
entries in here for those protocols it chooses to collect. In
other words, it need not populate this table with all
possible ethernet protocol types, nor need it create them on
the fly when it sees them. Whether it does these
things is a matter of product definition (cost/benefit,
usability) and is up to the designer of the product.
If an entry is written to this table with a protocolDirID that
the agent doesn't understand, either directly or
algorithmically, the SET request will be rejected with an
inconsistentName or badValue (for SNMPv1) error.
noaccess
A set of parameters for the associated protocolDirID.
See the associated RMON2 Protocol Identifiers document
for a description of the possible parameters. There
will be one octet in this string for each sub-identifier in
the protocolDirID, and the parameters will appear here in the
same order as the associated sub-identifiers appear in the
protocolDirID.
Every node in the protocolDirID tree has a different, optional
set of parameters defined (that is, the definition of
parameters for a node is optional). The proper parameter
value for each node is included in this string. Note that the
inclusion of a parameter value in this string for each node is
not optional. What is optional is that a node may have no
parameters defined, in which case the parameter field for that
node will be zero.
readonly
The locally arbitrary but unique identifier associated
with this protocolDir entry.
The value for each supported protocol must remain constant at
least from one re-initialization of the entity's network
management system to the next re-initialization, except that
if a protocol is deleted and re-created, it must be re-created
with a new value that has not been used since the last
re-initialization.
The specific value is meaningful only within a given SNMP
entity. A protocolDirLocalIndex must not be re-used until the
next agent restart in the event that the protocol directory
entry is deleted.
readwrite
A textual description of the protocol encapsulation.
A probe may choose to describe only a subset of the
entire encapsulation (e.g., only the highest layer).
This object is intended for human consumption only.
This object may not be modified if the associated
protocolDirStatus object is equal to active(1).
readonly
This object describes 2 attributes of this protocol
directory entry.
The presence or absence of the 'extensible' bit describes
whether this protocol directory entry can be extended
by the user by creating protocol directory entries that are
children of this protocol.
An example of an entry that will often allow extensibility is
'ip.udp'. The probe may automatically populate some children
of this node, such as 'ip.udp.snmp' and 'ip.udp.dns'.
A probe administrator or user may also populate additional
children via remote SNMP requests that create entries in this
table. When a child node is added for a protocol for which the
probe has no built-in support extending a parent node (for
which the probe does have built-in support),
that child node is not extendable. This is termed 'limited
extensibility'.
When a child node is added through this extensibility
mechanism, the values of protocolDirLocalIndex and
protocolDirType shall be assigned by the agent.
The other objects in the entry will be assigned by the
manager who is creating the new entry.
This object also describes whether this agent can
recognize addresses for this protocol, should it be a
network-level protocol. That is, while a probe may be able
to recognize packets of a particular network-layer protocol
and count them, it takes additional logic to be able to
recognize the addresses in this protocol and to populate
network-layer or application-layer tables with the addresses
in this protocol. If this bit is set, the agent will
recognize network-layer addresses for this protocol and
populate the network- and application-layer host and matrix
tables with these protocols.
Note that when an entry is created, the agent will supply
values for the bits that match the capabilities of the agent
with respect to this protocol. Note that since row creations
usually exercise the limited extensibility feature, these
bits will usually be set to zero.
readwrite
This object describes and configures the probe's support for
address mapping for this protocol. When the probe creates
entries in this table for all protocols that it understands,
it will set the entry to notSupported(1) if it doesn't have
the capability to perform address mapping for the protocol or
if this protocol is not a network-layer protocol. When
an entry is created in this table by a management operation as
part of the limited extensibility feature, the probe must set
this value to notSupported(1), because limited extensibility
of the protocolDirTable does not extend to interpreting
addresses of the extended protocols.
If the value of this object is notSupported(1), the probe
will not perform address mapping for this protocol and
shall not allow this object to be changed to any other value.
If the value of this object is supportedOn(3), the probe
supports address mapping for this protocol and is configured
to perform address mapping for this protocol for all
addressMappingControlEntries and all interfaces.
If the value of this object is supportedOff(2), the probe
supports address mapping for this protocol but is configured
to not perform address mapping for this protocol for any
addressMappingControlEntries and all interfaces.
Whenever this value changes from supportedOn(3) to
supportedOff(2), the probe shall delete all related entries in
the addressMappingTable.
readwrite
This object describes and configures the probe's support for
the network-layer and application-layer host tables for this
protocol. When the probe creates entries in this table for
all protocols that it understands, it will set the entry to
notSupported(1) if it doesn't have the capability to track the
nlHostTable for this protocol or if the alHostTable is
implemented but doesn't have the capability to track this
protocol. Note that if the alHostTable is implemented, the
probe may only support a protocol if it is supported in both
the nlHostTable and the alHostTable.
If the associated protocolDirType object has the
addressRecognitionCapable bit set, then this is a network-
layer protocol for which the probe recognizes addresses, and
thus the probe will populate the nlHostTable and alHostTable
with addresses it discovers for this protocol.
If the value of this object is notSupported(1), the probe
will not track the nlHostTable or alHostTable for this
protocol and shall not allow this object to be changed to any
other value. If the value of this object is supportedOn(3),
the probe supports tracking of the nlHostTable and alHostTable
for this protocol and is configured to track both tables
for this protocol for all control entries and all interfaces.
If the value of this object is supportedOff(2), the probe
supports tracking of the nlHostTable and alHostTable for this
protocol but is configured to not track these tables
for any control entries or interfaces.
Whenever this value changes from supportedOn(3) to
supportedOff(2), the probe shall delete all related entries in
the nlHostTable and alHostTable.
Note that since each alHostEntry references 2 protocol
directory entries, one for the network address and one for the
type of the highest protocol recognized, an entry will
only be created in that table if this value is supportedOn(3)
for both protocols.
readwrite
This object describes and configures the probe's support for
the network-layer and application-layer matrix tables for this
protocol. When the probe creates entries in this table for
all protocols that it understands, it will set the entry to
notSupported(1) if it doesn't have the capability to track the
nlMatrixTables for this protocol or if the alMatrixTables are
implemented but don't have the capability to track this
protocol. Note that if the alMatrix tables are implemented,
the probe may only support a protocol if it is supported in
both of the nlMatrixTables and both of the
alMatrixTables.
If the associated protocolDirType object has the
addressRecognitionCapable bit set, then this is a network-
layer protocol for which the probe recognizes addresses, and
thus the probe will populate both of the nlMatrixTables and
both of the alMatrixTables with addresses it discovers for
this protocol.
If the value of this object is notSupported(1), the probe
will not track either of the nlMatrixTables or the
alMatrixTables for this protocol and shall not allow this
object to be changed to any other value. If the value of this
object is supportedOn(3), the probe supports tracking of both
of the nlMatrixTables and (if implemented) both of the
alMatrixTables for this protocol and is configured to track
these tables for this protocol for all control entries and all
interfaces. If the value of this object is supportedOff(2),
the probe supports tracking of both of the nlMatrixTables and
(if implemented) both of the alMatrixTables for this protocol
but is configured to not track these tables for this
protocol for any control entries or interfaces.
Whenever this value changes from supportedOn(3) to
supportedOff(2), the probe shall delete all related entries in
the nlMatrixTables and the alMatrixTables.
Note that since each alMatrixEntry references 2 protocol
directory entries, one for the network address and one for the
type of the highest protocol recognized, an entry will
only be created in that table if this value is supportedOn(3)
for both protocols.
readwrite
The entity that configured this entry and is
therefore using the resources assigned to it.
readwrite
The status of this protocol directory entry.
An entry may not exist in the active state unless all
objects in the entry have an appropriate value.
If this object is not equal to active(1), all associated
entries in the nlHostTable, nlMatrixSDTable, nlMatrixDSTable,
alHostTable, alMatrixSDTable, and alMatrixDSTable shall be
deleted.
Controls the setup of protocol type distribution statistics
tables.
Implementations are encouraged to add an entry per monitored
interface upon initialization so that a default collection
of protocol statistics is available.
Rationale:
This table controls collection of very basic statistics
for any or all of the protocols detected on a given interface.
An NMS can use this table to quickly determine bandwidth
allocation utilized by different protocols.
A media-specific statistics collection could also
be configured (e.g., etherStats, trPStats) to easily obtain
total frame, octet, and droppedEvents for the same
interface.
A conceptual row in the protocolDistControlTable.
An example of the indexing of this entry is
protocolDistControlDroppedFrames.7
noaccess
A unique index for this protocolDistControlEntry.
readwrite
The source of data for the this protocol distribution.
The statistics in this group reflect all packets
on the local network segment attached to the
identified interface.
This object may not be modified if the associated
protocolDistControlStatus object is equal to active(1).
readonly
The total number of frames that were received by the probe
and therefore not accounted for in the *StatsDropEvents, but
that the probe chose not to count for this entry for
whatever reason. Most often, this event occurs when the probe
is out of some resources and decides to shed load from this
collection.
This count does not include packets that were not counted
because they had MAC-layer errors.
Note that, unlike the dropEvents counter, this number is the
exact number of frames dropped.
readonly
The value of sysUpTime when this control entry was last
activated. This can be used by the management station to
ensure that the table has not been deleted and recreated
between polls.
readwrite
The entity that configured this entry and is
therefore using the resources assigned to it.
readwrite
The status of this row.
An entry may not exist in the active state unless all
objects in the entry have an appropriate value.
If this object is not equal to active(1), all associated
entries in the protocolDistStatsTable shall be deleted.
An entry is made in this table for every protocol in the
protocolDirTable that has been seen in at least one packet.
Counters are updated in this table for every protocol type
that is encountered when parsing a packet, but no counters are
updated for packets with MAC-layer errors.
Note that if a protocolDirEntry is deleted, all associated
entries in this table are removed.
A conceptual row in the protocolDistStatsTable.
The index is composed of the protocolDistControlIndex of the
associated protocolDistControlEntry, followed by the
protocolDirLocalIndex of the associated protocol that this
entry represents. In other words, the index identifies the
protocol distribution an entry is a part of and the
particular protocol that it represents.
An example of the indexing of this entry is
protocolDistStatsPkts.1.18
readonly
The number of packets of this protocol type received
without errors. Note that this is the number of
link-layer packets, so if a single network-layer packet
is fragmented into several link-layer frames, this counter
is incremented several times.
readonly
The number of octets in packets of this protocol type
received since it was added to the protocolDistStatsTable
(excluding framing bits, but including FCS octets), except for
those octets in packets that contained errors.
Note that this doesn't count just those octets in the
particular protocol frames but includes the entire packet
that contained the protocol.
readonly
The number of times an address mapping entry has been
inserted into the addressMapTable. If an entry is inserted,
then deleted, and then inserted, this counter will be
incremented by 2.
Note that the table size can be determined by subtracting
addressMapDeletes from addressMapInserts.
readonly
The number of times an address mapping entry has been
deleted from the addressMapTable (for any reason). If
an entry is deleted, then inserted, and then deleted, this
counter will be incremented by 2.
Note that the table size can be determined by subtracting
addressMapDeletes from addressMapInserts.
readwrite
The maximum number of entries that are desired in the
addressMapTable. The probe will not create more than
this number of entries in the table but may choose to create
fewer entries in this table for any reason, including the lack
of resources.
If this object is set to a value less than the current number
of entries, enough entries are chosen in an
implementation-dependent manner and deleted so that the number
of entries in the table equals the value of this object.
If this value is set to -1, the probe may create any number
of entries in this table.
This object may be used to control how resources are allocated
on the probe for the various RMON functions.
A table to control the collection of mappings from network
layer address to physical address to interface.
Note that this is not like the typical RMON
controlTable and dataTable in which each entry creates
its own data table. Each entry in this table enables the
discovery of addresses on a new interface and the placement
of address mappings into the central addressMapTable.
Implementations are encouraged to add an entry per monitored
interface upon initialization so that a default collection
of address mappings is available.
A conceptual row in the addressMapControlTable.
An example of the indexing of this entry is
addressMapControlDroppedFrames.1
noaccess
A unique index for this entry in the addressMapControlTable.
readwrite
The source of data for this addressMapControlEntry.
readonly
The total number of frames that were received by the probe
and therefore not accounted for in the *StatsDropEvents, but
that the probe chose not to count for this entry for
whatever reason. Most often, this event occurs when the probe
is out of some resources and decides to shed load from this
collection.
This count does not include packets that were not counted
because they had MAC-layer errors.
Note that, unlike the dropEvents counter, this number is the
exact number of frames dropped.
readwrite
The entity that configured this entry and is
therefore using the resources assigned to it.
readwrite
The status of this addressMap control entry.
An entry may not exist in the active state unless all
objects in the entry have an appropriate value.
If this object is not equal to active(1), all associated
entries in the addressMapTable shall be deleted.
A table of mappings from network layer address to physical
address to interface.
The probe will add entries to this table based on the source
MAC and network addresses seen in packets without MAC-level
errors. The probe will populate this table for all protocols
in the protocol directory table whose value of
protocolDirAddressMapConfig is equal to supportedOn(3), and
will delete any entries whose protocolDirEntry is deleted or
has a protocolDirAddressMapConfig value of supportedOff(2).
A conceptual row in the addressMapTable.
The protocolDirLocalIndex in the index identifies the network
layer protocol of the addressMapNetworkAddress.
An example of the indexing of this entry is
addressMapSource.783495.18.4.128.2.6.6.11.1.3.6.1.2.1.2.2.1.1.1.
Note that some combinations of index values may result in an
index that exceeds 128 sub-identifiers in length, which exceeds
the maximum for the SNMP protocol. Implementations should take
care to avoid such combinations.
noaccess
A TimeFilter for this entry. See the TimeFilter textual
convention to see how this works.
noaccess
The network address for this relation.
This is represented as an octet string with
specific semantics and length as identified
by the protocolDirLocalIndex component of the
index.
For example, if the protocolDirLocalIndex indicates an
encapsulation of ip, this object is encoded as a length
octet of 4, followed by the 4 octets of the IP address,
in network byte order.
noaccess
The interface or port on which the associated network
address was most recently seen.
If this address mapping was discovered on an interface, this
object shall identify the instance of the ifIndex
object, defined in [RFC2863], for the desired interface.
For example, if an entry were to receive data from
interface #1, this object would be set to ifIndex.1.
If this address mapping was discovered on a port, this
object shall identify the instance of the rptrGroupPortIndex
object, defined in [RFC2108], for the desired port.
For example, if an entry were to receive data from
group #1, port #1, this object would be set to
rptrGroupPortIndex.1.1.
Note that while the dataSource associated with this entry
may only point to index objects, this object may at times
point to repeater port objects. This situation occurs when
the dataSource points to an interface that is a locally
attached repeater and the agent has additional information
about the source port of traffic seen on that repeater.
readonly
The last source physical address on which the associated
network address was seen. If the protocol of the associated
network address was encapsulated inside of a network-level or
higher protocol, this will be the address of the next-lower
protocol with the addressRecognitionCapable bit enabled and
will be formatted as specified for that protocol.
readonly
The value of sysUpTime at the time this entry was last
created or the values of the physical address changed.
This can be used to help detect duplicate address problems, in
which case this object will be updated frequently.
A list of higher-layer (i.e., non-MAC) host table control
entries.
These entries will enable the collection of the network- and
application-level host tables indexed by network addresses.
Both the network- and application-level host tables are
controlled by this table so that they will both be created
and deleted at the same time, further increasing the ease with
which they can be implemented as a single datastore. (Note that
if an implementation stores application-layer host records in
memory, it can derive network-layer host records from them.)
Entries in the nlHostTable will be created on behalf of each
entry in this table. Additionally, if this probe implements
the alHostTable, entries in the alHostTable will be created on
behalf of each entry in this table.
Implementations are encouraged to add an entry per monitored
interface upon initialization so that a default collection
of host statistics is available.
A conceptual row in the hlHostControlTable.
An example of the indexing of this entry is
hlHostControlNlDroppedFrames.1
noaccess
An index that uniquely identifies an entry in the
hlHostControlTable. Each such entry defines
a function that discovers hosts on a particular
interface and places statistics about them in the
nlHostTable, and optionally in the alHostTable, on
behalf of this hlHostControlEntry.
readwrite
The source of data for the associated host tables.
The statistics in this group reflect all packets
on the local network segment attached to the
identified interface.
This object may not be modified if the associated
hlHostControlStatus object is equal to active(1).
readonly
The total number of frames that were received by the probe
and therefore not accounted for in the *StatsDropEvents, but
that the probe chose not to count for the associated
nlHost entries for whatever reason. Most often, this event
occurs when the probe is out of some resources and decides to
shed load from this collection.
This count does not include packets that were not counted
because they had MAC-layer errors.
Note that if the nlHostTable is inactive because no protocols
are enabled in the protocol directory, this value should be 0.
Note that, unlike the dropEvents counter, this number is the
exact number of frames dropped.
readonly
The number of times an nlHost entry has been
inserted into the nlHost table. If an entry is inserted, then
deleted, and then inserted, this counter will be incremented
by 2.
To allow for efficient implementation strategies, agents may
delay updating this object for short periods of time. For
example, an implementation strategy may allow internal
data structures to differ from those visible via SNMP for
short periods of time. This counter may reflect the internal
data structures for those short periods of time.
Note that the table size can be determined by subtracting
hlHostControlNlDeletes from hlHostControlNlInserts.
readonly
The number of times an nlHost entry has been
deleted from the nlHost table (for any reason). If an entry
is deleted, then inserted, and then deleted, this counter will
be incremented by 2.
To allow for efficient implementation strategies, agents may
delay updating this object for short periods of time. For
example, an implementation strategy may allow internal
data structures to differ from those visible via SNMP for
short periods of time. This counter may reflect the internal
data structures for those short periods of time.
Note that the table size can be determined by subtracting
hlHostControlNlDeletes from hlHostControlNlInserts.
readwrite
The maximum number of entries that are desired in the
nlHostTable on behalf of this control entry. The probe will
not create more than this number of associated entries in the
table but may choose to create fewer entries in this table
for any reason, including the lack of resources.
If this object is set to a value less than the current number
of entries, enough entries are chosen in an
implementation-dependent manner and deleted so that the number
of entries in the table equals the value of this object.
If this value is set to -1, the probe may create any number
of entries in this table. If the associated
hlHostControlStatus object is equal to 'active', this
object may not be modified.
This object may be used to control how resources are allocated
on the probe for the various RMON functions.
readonly
The total number of frames that were received by the probe
and therefore not accounted for in the *StatsDropEvents, but
that the probe chose not to count for the associated
alHost entries for whatever reason. Most often, this event
occurs when the probe is out of some resources and decides to
shed load from this collection.
This count does not include packets that were not counted
because they had MAC-layer errors.
Note that if the alHostTable is not implemented or is inactive
because no protocols are enabled in the protocol directory,
this value should be 0.
Note that, unlike the dropEvents counter, this number is the
exact number of frames dropped.
readonly
The number of times an alHost entry has been
inserted into the alHost table. If an entry is inserted, then
deleted, and then inserted, this counter will be incremented
by 2.
To allow for efficient implementation strategies, agents may
delay updating this object for short periods of time. For
example, an implementation strategy may allow internal
data structures to differ from those visible via SNMP for
short periods of time. This counter may reflect the internal
data structures for those short periods of time.
Note that the table size can be determined by subtracting
hlHostControlAlDeletes from hlHostControlAlInserts.
readonly
The number of times an alHost entry has been
deleted from the alHost table (for any reason). If an entry
is deleted, then inserted, and then deleted, this counter will
be incremented by 2.
To allow for efficient implementation strategies, agents may
delay updating this object for short periods of time. For
example, an implementation strategy may allow internal
data structures to differ from those visible via SNMP for
short periods of time. This counter may reflect the internal
data structures for those short periods of time.
Note that the table size can be determined by subtracting
hlHostControlAlDeletes from hlHostControlAlInserts.
readwrite
The maximum number of entries that are desired in the alHost
table on behalf of this control entry. The probe will not
create more than this number of associated entries in the
table but may choose to create fewer entries in this table
for any reason, including the lack of resources.
If this object is set to a value less than the current number
of entries, enough entries are chosen in an
implementation-dependent manner and deleted so that the number
of entries in the table equals the value of this object.
If this value is set to -1, the probe may create any number
of entries in this table. If the associated
hlHostControlStatus object is equal to 'active', this
object may not be modified.
This object may be used to control how resources are allocated
on the probe for the various RMON functions.
readwrite
The entity that configured this entry and is
therefore using the resources assigned to it.
readwrite
The status of this hlHostControlEntry.
An entry may not exist in the active state unless all
objects in the entry have an appropriate value.
If this object is not equal to active(1), all associated
entries in the nlHostTable and alHostTable shall be deleted.
A collection of statistics for a particular network layer
address that has been discovered on an interface of this
device.
The probe will populate this table for all network layer
protocols in the protocol directory table whose value of
protocolDirHostConfig is equal to supportedOn(3), and
will delete any entries whose protocolDirEntry is deleted or
has a protocolDirHostConfig value of supportedOff(2).
The probe will add to this table all addresses seen
as the source or destination address in all packets with no
MAC errors, and will increment octet and packet counts in the
table for all packets with no MAC errors.
A conceptual row in the nlHostTable.
The hlHostControlIndex value in the index identifies the
hlHostControlEntry on whose behalf this entry was created.
The protocolDirLocalIndex value in the index identifies the
network layer protocol of the nlHostAddress.
An example of the indexing of this entry is
nlHostOutPkts.1.783495.18.4.128.2.6.6.
Note that some combinations of index values may result in an
index that exceeds 128 sub-identifiers in length, which exceeds
the maximum for the SNMP protocol. Implementations should take
care to avoid such combinations.
noaccess
A TimeFilter for this entry. See the TimeFilter textual
convention to see how this works.
noaccess
The network address for this nlHostEntry.
This is represented as an octet string with
specific semantics and length as identified
by the protocolDirLocalIndex component of the index.
For example, if the protocolDirLocalIndex indicates an
encapsulation of IP, this object is encoded as a length
octet of 4, followed by the 4 octets of the IP address,
in network byte order.
readonly
The number of packets without errors transmitted to
this address since it was added to the nlHostTable. Note that
this is the number of link-layer packets, so if a single
network-layer packet is fragmented into several link-layer
frames, this counter is incremented several times.
readonly
The number of packets without errors transmitted by
this address since it was added to the nlHostTable. Note that
this is the number of link-layer packets, so if a single
network-layer packet is fragmented into several link-layer
frames, this counter is incremented several times.
readonly
The number of octets transmitted to this address
since it was added to the nlHostTable (excluding
framing bits, but including FCS octets), excluding
octets in packets that contained errors.
Note that this doesn't count just those octets in the particular
protocol frames but includes the entire packet that contained
the protocol.
readonly
The number of octets transmitted by this address
since it was added to the nlHostTable (excluding
framing bits, but including FCS octets), excluding
octets in packets that contained errors.
Note that this doesn't count just those octets in the particular
protocol frames but includes the entire packet that contained
the protocol.
readonly
The number of packets without errors transmitted by this
address that were directed to any MAC broadcast addresses
or to any MAC multicast addresses since this host was
added to the nlHostTable. Note that this is the number of
link-layer packets, so if a single network-layer packet is
fragmented into several link-layer frames, this counter is
incremented several times.
readonly
The value of sysUpTime when this entry was last activated.
This can be used by the management station to ensure that the
entry has not been deleted and recreated between polls.
A list of higher-layer (i.e., non-MAC) matrix control entries.
These entries will enable the collection of the network- and
application-level matrix tables containing conversation
statistics indexed by pairs of network addresses.
Both the network- and application-level matrix tables are
controlled by this table so that they will both be created
and deleted at the same time, further increasing the ease with
which they can be implemented as a single datastore. (Note that
if an implementation stores application-layer matrix records
in memory, it can derive network-layer matrix records from
them.)
Entries in the nlMatrixSDTable and nlMatrixDSTable will be
created on behalf of each entry in this table. Additionally,
if this probe implements the alMatrix tables, entries in the
alMatrix tables will be created on behalf of each entry in
this table.
A conceptual row in the hlMatrixControlTable.
An example of indexing of this entry is
hlMatrixControlNlDroppedFrames.1
noaccess
An index that uniquely identifies an entry in the
hlMatrixControlTable. Each such entry defines
a function that discovers conversations on a particular
interface and places statistics about them in the
nlMatrixSDTable and the nlMatrixDSTable, and optionally the
alMatrixSDTable and alMatrixDSTable, on behalf of this
hlMatrixControlEntry.
readwrite
The source of the data for the associated matrix tables.
The statistics in this group reflect all packets
on the local network segment attached to the
identified interface.
This object may not be modified if the associated
hlMatrixControlStatus object is equal to active(1).
readonly
The total number of frames that were received by the probe
and therefore not accounted for in the *StatsDropEvents, but
that the probe chose not to count for this entry for
whatever reason. Most often, this event occurs when the probe
is out of some resources and decides to shed load from this
collection.
This count does not include packets that were not counted
because they had MAC-layer errors.
Note that if the nlMatrixTables are inactive because no
protocols are enabled in the protocol directory, this value
should be 0.
Note that, unlike the dropEvents counter, this number is the
exact number of frames dropped.
readonly
The number of times an nlMatrix entry has been
inserted into the nlMatrix tables. If an entry is inserted,
then deleted, and then inserted, this counter will be
incremented by 2. The addition of a conversation into both
the nlMatrixSDTable and nlMatrixDSTable shall be counted as
two insertions (even though every addition into one table must
be accompanied by an insertion into the other).
To allow for efficient implementation strategies, agents may
delay updating this object for short periods of time. For
example, an implementation strategy may allow internal
data structures to differ from those visible via SNMP for
short periods of time. This counter may reflect the internal
data structures for those short periods of time.
Note that the sum of then nlMatrixSDTable and nlMatrixDSTable
sizes can be determined by subtracting
hlMatrixControlNlDeletes from hlMatrixControlNlInserts.
readonly
The number of times an nlMatrix entry has been
deleted from the nlMatrix tables (for any reason). If an
entry is deleted, then inserted, and then deleted, this
counter will be incremented by 2. The deletion of a
conversation from both the nlMatrixSDTable and nlMatrixDSTable
shall be counted as two deletions (even though every deletion
from one table must be accompanied by a deletion from the
other).
To allow for efficient implementation strategies, agents may
delay updating this object for short periods of time. For
example, an implementation strategy may allow internal
data structures to differ from those visible via SNMP for
short periods of time. This counter may reflect the internal
data structures for those short periods of time.
Note that the table size can be determined by subtracting
hlMatrixControlNlDeletes from hlMatrixControlNlInserts.
readwrite
The maximum number of entries that are desired in the
nlMatrix tables on behalf of this control entry. The probe
will not create more than this number of associated entries in
the table but may choose to create fewer entries in this
table for any reason, including the lack of resources.
If this object is set to a value less than the current number
of entries, enough entries are chosen in an
implementation-dependent manner and deleted so that the number
of entries in the table equals the value of this object.
If this value is set to -1, the probe may create any number
of entries in this table. If the associated
hlMatrixControlStatus object is equal to 'active', this
object may not be modified.
This object may be used to control how resources are allocated
on the probe for the various RMON functions.
readonly
The total number of frames that were received by the probe
and therefore not accounted for in the *StatsDropEvents, but
that the probe chose not to count for this entry for
whatever reason. Most often, this event occurs when the probe
is out of some resources and decides to shed load from this
collection.
This count does not include packets that were not counted
because they had MAC-layer errors.
Note that if the alMatrixTables are not implemented or are
inactive because no protocols are enabled in the protocol
directory, this value should be 0.
Note that, unlike the dropEvents counter, this number is the
exact number of frames dropped.
readonly
The number of times an alMatrix entry has been
inserted into the alMatrix tables. If an entry is inserted,
then deleted, and then inserted, this counter will be
incremented by 2. The addition of a conversation into both
the alMatrixSDTable and alMatrixDSTable shall be counted as
two insertions (even though every addition into one table must
be accompanied by an insertion into the other).
To allow for efficient implementation strategies, agents may
delay updating this object for short periods of time. For
example, an implementation strategy may allow internal
data structures to differ from those visible via SNMP for
short periods of time. This counter may reflect the internal
data structures for those short periods of time.
Note that the table size can be determined by subtracting
hlMatrixControlAlDeletes from hlMatrixControlAlInserts.
readonly
The number of times an alMatrix entry has been
deleted from the alMatrix tables. If an entry is deleted,
then inserted, and then deleted, this counter will be
incremented by 2. The deletion of a conversation from both
the alMatrixSDTable and alMatrixDSTable shall be counted as
two deletions (even though every deletion from one table must
be accompanied by a deletion from the other).
To allow for efficient implementation strategies, agents may
delay updating this object for short periods of time. For
example, an implementation strategy may allow internal
data structures to differ from those visible via SNMP for
short periods of time. This counter may reflect the internal
data structures for those short periods of time.
Note that the table size can be determined by subtracting
hlMatrixControlAlDeletes from hlMatrixControlAlInserts.
readwrite
The maximum number of entries that are desired in the
alMatrix tables on behalf of this control entry. The probe
will not create more than this number of associated entries in
the table but may choose to create fewer entries in this
table for any reason, including the lack of resources.
If this object is set to a value less than the current number
of entries, enough entries are chosen in an
implementation-dependent manner and deleted so that the number
of entries in the table equals the value of this object.
If this value is set to -1, the probe may create any number
of entries in this table. If the associated
hlMatrixControlStatus object is equal to 'active', this
object may not be modified.
This object may be used to control how resources are allocated
on the probe for the various RMON functions.
readwrite
The entity that configured this entry and is
therefore using the resources assigned to it.
readwrite
The status of this hlMatrixControlEntry.
An entry may not exist in the active state unless all
objects in the entry have an appropriate value.
If this object is not equal to active(1), all
associated entries in the nlMatrixSDTable,
nlMatrixDSTable, alMatrixSDTable, and alMatrixDSTable
shall be deleted by the agent.
A list of traffic matrix entries that collect statistics for
conversations between two network-level addresses. This table
is indexed first by the source address and then by the
destination address to make it convenient to collect all
conversations from a particular address.
The probe will populate this table for all network layer
protocols in the protocol directory table whose value of
protocolDirMatrixConfig is equal to supportedOn(3), and
will delete any entries whose protocolDirEntry is deleted or
has a protocolDirMatrixConfig value of supportedOff(2).
The probe will add to this table all pairs of addresses
seen in all packets with no MAC errors and will increment
octet and packet counts in the table for all packets with no
MAC errors.
Further, this table will only contain entries that have a
corresponding entry in the nlMatrixDSTable with the same
source address and destination address.
A conceptual row in the nlMatrixSDTable.
The hlMatrixControlIndex value in the index identifies the
hlMatrixControlEntry on whose behalf this entry was created.
The protocolDirLocalIndex value in the index identifies the
network-layer protocol of the nlMatrixSDSourceAddress and
nlMatrixSDDestAddress.
An example of the indexing of this table is
nlMatrixSDPkts.1.783495.18.4.128.2.6.6.4.128.2.6.7.
Note that some combinations of index values may result in an
index that exceeds 128 sub-identifiers in length, which exceeds
the maximum for the SNMP protocol. Implementations should take
care to avoid such combinations.
noaccess
A TimeFilter for this entry. See the TimeFilter textual
convention to see how this works.
noaccess
The network source address for this nlMatrixSDEntry.
This is represented as an octet string with
specific semantics and length as identified
by the protocolDirLocalIndex component of the index.
For example, if the protocolDirLocalIndex indicates an
encapsulation of IP, this object is encoded as a length
octet of 4, followed by the 4 octets of the IP address,
in network byte order.
noaccess
The network destination address for this
nlMatrixSDEntry.
This is represented as an octet string with
specific semantics and length as identified
by the protocolDirLocalIndex component of the index.
For example, if the protocolDirLocalIndex indicates an
encapsulation of IP, this object is encoded as a length
octet of 4, followed by the 4 octets of the IP address,
in network byte order.
readonly
The number of packets without errors transmitted from the
source address to the destination address since this entry was
added to the nlMatrixSDTable. Note that this is the number of
link-layer packets, so if a single network-layer packet is
fragmented into several link-layer frames, this counter is
incremented several times.
readonly
The number of octets transmitted from the source address to
the destination address since this entry was added to the
nlMatrixSDTable (excluding framing bits, but
including FCS octets), excluding octets in packets that
contained errors.
Note that this doesn't count just those octets in the particular
protocol frames but includes the entire packet that contained
the protocol.
readonly
The value of sysUpTime when this entry was last activated.
This can be used by the management station to ensure that the
entry has not been deleted and recreated between polls.
A list of traffic matrix entries that collect statistics for
conversations between two network-level addresses. This table
is indexed first by the destination address and then by the
source address to make it convenient to collect all
conversations to a particular address.
The probe will populate this table for all network layer
protocols in the protocol directory table whose value of
protocolDirMatrixConfig is equal to supportedOn(3), and
will delete any entries whose protocolDirEntry is deleted or
has a protocolDirMatrixConfig value of supportedOff(2).
The probe will add to this table all pairs of addresses
seen in all packets with no MAC errors and will increment
octet and packet counts in the table for all packets with no
MAC errors.
Further, this table will only contain entries that have a
corresponding entry in the nlMatrixSDTable with the same
source address and destination address.
A conceptual row in the nlMatrixDSTable.
The hlMatrixControlIndex value in the index identifies the
hlMatrixControlEntry on whose behalf this entry was created.
The protocolDirLocalIndex value in the index identifies the
network-layer protocol of the nlMatrixDSSourceAddress and
nlMatrixDSDestAddress.
An example of the indexing of this table is
nlMatrixDSPkts.1.783495.18.4.128.2.6.7.4.128.2.6.6.
Note that some combinations of index values may result in an
index that exceeds 128 sub-identifiers in length, which exceeds
the maximum for the SNMP protocol. Implementations should take
care to avoid such combinations.
noaccess
A TimeFilter for this entry. See the TimeFilter textual
convention to see how this works.
noaccess
The network source address for this nlMatrixDSEntry.
This is represented as an octet string with
specific semantics and length as identified
by the protocolDirLocalIndex component of the index.
For example, if the protocolDirLocalIndex indicates an
encapsulation of IP, this object is encoded as a length
octet of 4, followed by the 4 octets of the IP address,
in network byte order.
noaccess
The network destination address for this
nlMatrixDSEntry.
This is represented as an octet string with
specific semantics and length as identified
by the protocolDirLocalIndex component of the index.
For example, if the protocolDirLocalIndex indicates an
encapsulation of IP, this object is encoded as a length
octet of 4, followed by the 4 octets of the IP address,
in network byte order.
readonly
The number of packets without errors transmitted from the
source address to the destination address since this entry was
added to the nlMatrixDSTable. Note that this is the number of
link-layer packets, so if a single network-layer packet is
fragmented into several link-layer frames, this counter is
incremented several times.
readonly
The number of octets transmitted from the source address
to the destination address since this entry was added to the
nlMatrixDSTable (excluding framing bits, but
including FCS octets), excluding octets in packets that
contained errors.
Note that this doesn't count just those octets in the particular
protocol frames but includes the entire packet that contained
the protocol.
readonly
The value of sysUpTime when this entry was last activated.
This can be used by the management station to ensure that the
entry has not been deleted and recreated between polls.
A set of parameters that control the creation of a
report of the top N matrix entries according to
a selected metric.
A conceptual row in the nlMatrixTopNControlTable.
An example of the indexing of this table is
nlMatrixTopNControlDuration.3
noaccess
An index that uniquely identifies an entry
in the nlMatrixTopNControlTable. Each such
entry defines one topN report prepared for
one interface.
readwrite
The nlMatrix[SD/DS] table for which a topN report will be
prepared on behalf of this entry. The nlMatrix[SD/DS] table
is identified by the value of the hlMatrixControlIndex
for that table - that value is used here to identify the
particular table.
This object may not be modified if the associated
nlMatrixTopNControlStatus object is equal to active(1).
readwrite
The variable for each nlMatrix[SD/DS] entry that the
nlMatrixTopNEntries are sorted by, as well as a control
for the table that the results will be reported in.
This object may not be modified if the associated
nlMatrixTopNControlStatus object is equal to active(1).
If this value is less than or equal to 2, when the report
is prepared, entries are created in the nlMatrixTopNTable
associated with this object.
If this value is greater than or equal to 3, when the report
is prepared, entries are created in the
nlMatrixTopNHighCapacityTable associated with this object.
readwrite1800
The number of seconds left in the report currently
being collected. When this object is modified by
the management station, a new collection is started,
possibly aborting a currently running report. The
new value is used as the requested duration of this
report and is immediately loaded into the associated
nlMatrixTopNControlDuration object.
When the report finishes, the probe will automatically
start another collection with the same initial value
of nlMatrixTopNControlTimeRemaining. Thus, the management
station may simply read the resulting reports repeatedly,
checking the startTime and duration each time to ensure that a
report was not missed or that the report parameters were not
changed.
While the value of this object is non-zero, it decrements
by one per second until it reaches zero. At the time
that this object decrements to zero, the report is made
accessible in the nlMatrixTopNTable, overwriting any report
that may be there.
When this object is modified by the management station, any
associated entries in the nlMatrixTopNTable shall be deleted.
(Note that this is a different algorithm than the one used
in the hostTopNTable).
readonly
The number of reports that have been generated by this entry.
readonly
The number of seconds that this report has collected
during the last sampling interval.
When the associated nlMatrixTopNControlTimeRemaining object is
set, this object shall be set by the probe to the
same value and shall not be modified until the next
time the nlMatrixTopNControlTimeRemaining is set.
This value shall be zero if no reports have been
requested for this nlMatrixTopNControlEntry.
readwrite150
The maximum number of matrix entries requested for this report.
When this object is created or modified, the probe
should set nlMatrixTopNControlGrantedSize as closely to this
object as possible for the particular probe
implementation and available resources.
readonly
The maximum number of matrix entries in this report.
When the associated nlMatrixTopNControlRequestedSize object is
created or modified, the probe should set this
object as closely to the requested value as
possible for the particular implementation and
available resources. The probe must not lower this
value except as a side-effect of a set to the associated
nlMatrixTopNControlRequestedSize object.
If the value of nlMatrixTopNControlRateBase is equal to
nlMatrixTopNPkts, when the next topN report is generated,
matrix entries with the highest value of nlMatrixTopNPktRate
shall be placed in this table in decreasing order of this rate
until there is no more room or until there are no more
matrix entries.
If the value of nlMatrixTopNControlRateBase is equal to
nlMatrixTopNOctets, when the next topN report is generated,
matrix entries with the highest value of nlMatrixTopNOctetRate
shall be placed in this table in decreasing order of this rate
until there is no more room or until there are no more
matrix entries.
It is an implementation-specific matter how entries with the
same value of nlMatrixTopNPktRate or nlMatrixTopNOctetRate are
sorted. It is also an implementation-specific matter as to
whether zero-valued entries are available.
readonly
The value of sysUpTime when this topN report was
last started. In other words, this is the time that
the associated nlMatrixTopNControlTimeRemaining object was
modified to start the requested report or the time
the report was last automatically (re)started.
This object may be used by the management station to
determine whether a report was missed.
readwrite
The entity that configured this entry and is
therefore using the resources assigned to it.
readwrite
The status of this nlMatrixTopNControlEntry.
An entry may not exist in the active state unless all
objects in the entry have an appropriate value.
If this object is not equal to active(1), all
associated entries in the nlMatrixTopNTable shall be deleted
by the agent.
A set of statistics for those network-layer matrix entries
that have counted the highest number of octets or packets.
A conceptual row in the nlMatrixTopNTable.
The nlMatrixTopNControlIndex value in the index identifies the
nlMatrixTopNControlEntry on whose behalf this entry was
created.
An example of the indexing of this table is
nlMatrixTopNPktRate.3.10
noaccess
An index that uniquely identifies an entry in
the nlMatrixTopNTable among those in the same report.
This index is between 1 and N, where N is the
number of entries in this report.
If the value of nlMatrixTopNControlRateBase is equal to
nlMatrixTopNPkts, increasing values of nlMatrixTopNIndex shall
be assigned to entries with decreasing values of
nlMatrixTopNPktRate until index N is assigned or there are no
more nlMatrixTopNEntries.
If the value of nlMatrixTopNControlRateBase is equal to
nlMatrixTopNOctets, increasing values of nlMatrixTopNIndex
shall be assigned to entries with decreasing values of
nlMatrixTopNOctetRate until index N is assigned or there are
no more nlMatrixTopNEntries.
readonly
The protocolDirLocalIndex of the network-layer protocol of
this entry's network address.
readonly
The network-layer address of the source host in this
conversation.
This is represented as an octet string with
specific semantics and length as identified
by the associated nlMatrixTopNProtocolDirLocalIndex.
For example, if the protocolDirLocalIndex indicates an
encapsulation of IP, this object is encoded as a length
octet of 4, followed by the 4 octets of the IP address,
in network byte order.
readonly
The network-layer address of the destination host in this
conversation.
This is represented as an octet string with
specific semantics and length as identified
by the associated nlMatrixTopNProtocolDirLocalIndex.
For example, if the nlMatrixTopNProtocolDirLocalIndex
indicates an encapsulation of IP, this object is encoded as a
length octet of 4, followed by the 4 octets of the IP address,
in network byte order.
readonly
The number of packets seen from the source host
to the destination host during this sampling interval, counted
using the rules for counting the nlMatrixSDPkts object.
If the value of nlMatrixTopNControlRateBase is
nlMatrixTopNPkts, this variable will be used to sort this
report.
readonly
The number of packets seen from the destination host to the
source host during this sampling interval, counted
using the rules for counting the nlMatrixSDPkts object. (Note
that the corresponding nlMatrixSDPkts object selected is the
one whose source address is equal to nlMatrixTopNDestAddress
and whose destination address is equal to
nlMatrixTopNSourceAddress.)
Note that if the value of nlMatrixTopNControlRateBase is equal
to nlMatrixTopNPkts, the sort of topN entries is based
entirely on nlMatrixTopNPktRate, and not on the value of this
object.
readonly
The number of octets seen from the source host
to the destination host during this sampling interval, counted
using the rules for counting the nlMatrixSDOctets object. If
the value of nlMatrixTopNControlRateBase is
nlMatrixTopNOctets, this variable will be used to sort this
report.
readonly
The number of octets seen from the destination host to the
source host during this sampling interval, counted
using the rules for counting the nlMatrixDSOctets object. (Note
that the corresponding nlMatrixSDOctets object selected is the
one whose source address is equal to nlMatrixTopNDestAddress
and whose destination address is equal to
nlMatrixTopNSourceAddress.)
Note that if the value of nlMatrixTopNControlRateBase is equal
to nlMatrixTopNOctets, the sort of topN entries is based
entirely on nlMatrixTopNOctetRate, and not on the value of
this object.
A collection of statistics for a particular protocol from a
particular network address that has been discovered on an
interface of this device.
The probe will populate this table for all protocols in the
protocol directory table whose value of
protocolDirHostConfig is equal to supportedOn(3), and
will delete any entries whose protocolDirEntry is deleted or
has a protocolDirHostConfig value of supportedOff(2).
The probe will add to this table all addresses
seen as the source or destination address in all packets with
no MAC errors and will increment octet and packet counts in
the table for all packets with no MAC errors. Further,
entries will only be added to this table if their address
exists in the nlHostTable and will be deleted from this table
if their address is deleted from the nlHostTable.
A conceptual row in the alHostTable.
The hlHostControlIndex value in the index identifies the
hlHostControlEntry on whose behalf this entry was created.
The first protocolDirLocalIndex value in the index identifies
the network-layer protocol of the address.
The nlHostAddress value in the index identifies the network-
layer address of this entry.
The second protocolDirLocalIndex value in the index identifies
the protocol that is counted by this entry.
An example of the indexing in this entry is
alHostOutPkts.1.783495.18.4.128.2.6.6.34.
Note that some combinations of index values may result in an
index that exceeds 128 sub-identifiers in length, which exceeds
the maximum for the SNMP protocol. Implementations should take
care to avoid such combinations.
noaccess
A TimeFilter for this entry. See the TimeFilter textual
convention to see how this works.
readonly
The number of packets of this protocol type without errors
transmitted to this address since it was added to the
alHostTable. Note that this is the number of link-layer
packets, so if a single network-layer packet is fragmented
into several link-layer frames, this counter is incremented
several times.
readonly
The number of packets of this protocol type without errors
transmitted by this address since it was added to the
alHostTable. Note that this is the number of link-layer
packets, so if a single network-layer packet is fragmented
into several link-layer frames, this counter is incremented
several times.
readonly
The number of octets transmitted to this address
of this protocol type since it was added to the
alHostTable (excluding framing bits, but including
FCS octets), excluding octets in packets that
contained errors.
Note that this doesn't count just those octets in the particular
protocol frames but includes the entire packet that contained
the protocol.
readonly
The number of octets transmitted by this address
of this protocol type since it was added to the
alHostTable (excluding framing bits, but including
FCS octets), excluding octets in packets that
contained errors.
Note that this doesn't count just those octets in the particular
protocol frames but includes the entire packet that contained
the protocol.
readonly
The value of sysUpTime when this entry was last activated.
This can be used by the management station to ensure that the
entry has not been deleted and recreated between polls.
A list of application traffic matrix entries that collect
statistics for conversations of a particular protocol between
two network-level addresses. This table is indexed first by
the source address and then by the destination address to make
it convenient to collect all statistics from a particular
address.
The probe will populate this table for all protocols in the
protocol directory table whose value of
protocolDirMatrixConfig is equal to supportedOn(3), and
will delete any entries whose protocolDirEntry is deleted or
has a protocolDirMatrixConfig value of supportedOff(2).
The probe will add to this table all pairs of addresses for
all protocols seen in all packets with no MAC errors and will
increment octet and packet counts in the table for all packets
with no MAC errors. Further, entries will only be added to
this table if their address pair exists in the nlMatrixSDTable
and will be deleted from this table if the address pair is
deleted from the nlMatrixSDTable.
A conceptual row in the alMatrixSDTable.
The hlMatrixControlIndex value in the index identifies the
hlMatrixControlEntry on whose behalf this entry was created.
The first protocolDirLocalIndex value in the index identifies
the network-layer protocol of the nlMatrixSDSourceAddress and
nlMatrixSDDestAddress.
The nlMatrixSDSourceAddress value in the index identifies the
network-layer address of the source host in this conversation.
The nlMatrixSDDestAddress value in the index identifies the
network-layer address of the destination host in this
conversation.
The second protocolDirLocalIndex value in the index identifies
the protocol that is counted by this entry.
An example of the indexing of this entry is
alMatrixSDPkts.1.783495.18.4.128.2.6.6.4.128.2.6.7.34.
Note that some combinations of index values may result in an
index that exceeds 128 sub-identifiers in length, which exceeds
the maximum for the SNMP protocol. Implementations should take
care to avoid such combinations.
noaccess
A TimeFilter for this entry. See the TimeFilter textual
convention to see how this works.
readonly
The number of packets of this protocol type without errors
transmitted from the source address to the destination address
since this entry was added to the alMatrixSDTable. Note that
this is the number of link-layer packets, so if a single
network-layer packet is fragmented into several link-layer
frames, this counter is incremented several times.
readonly
The number of octets in packets of this protocol type
transmitted from the source address to the destination address
since this entry was added to the alMatrixSDTable (excluding
framing bits, but including FCS octets), excluding octets
in packets that contained errors.
Note that this doesn't count just those octets in the particular
protocol frames but includes the entire packet that contained
the protocol.
readonly
The value of sysUpTime when this entry was last activated.
This can be used by the management station to ensure that the
entry has not been deleted and recreated between polls.
A list of application traffic matrix entries that collect
statistics for conversations of a particular protocol between
two network-level addresses. This table is indexed first by
the destination address and then by the source address to make
it convenient to collect all statistics to a particular
address.
The probe will populate this table for all protocols in the
protocol directory table whose value of
protocolDirMatrixConfig is equal to supportedOn(3), and
will delete any entries whose protocolDirEntry is deleted or
has a protocolDirMatrixConfig value of supportedOff(2).
The probe will add to this table all pairs of addresses for
all protocols seen in all packets with no MAC errors and will
increment octet and packet counts in the table for all packets
with no MAC errors. Further, entries will only be added to
this table if their address pair exists in the nlMatrixDSTable
and will be deleted from this table if the address pair is
deleted from the nlMatrixDSTable.
A conceptual row in the alMatrixDSTable.
The hlMatrixControlIndex value in the index identifies the
hlMatrixControlEntry on whose behalf this entry was created.
The first protocolDirLocalIndex value in the index identifies
the network-layer protocol of the alMatrixDSSourceAddress and
alMatrixDSDestAddress.
The nlMatrixDSDestAddress value in the index identifies the
network-layer address of the destination host in this
conversation.
The nlMatrixDSSourceAddress value in the index identifies the
network-layer address of the source host in this conversation.
The second protocolDirLocalIndex value in the index identifies
the protocol that is counted by this entry.
An example of the indexing of this entry is
alMatrixDSPkts.1.783495.18.4.128.2.6.7.4.128.2.6.6.34.
Note that some combinations of index values may result in an
index that exceeds 128 sub-identifiers in length, which exceeds
the maximum for the SNMP protocol. Implementations should take
care to avoid such combinations.
noaccess
A TimeFilter for this entry. See the TimeFilter textual
convention to see how this works.
readonly
The number of packets of this protocol type without errors
transmitted from the source address to the destination address
since this entry was added to the alMatrixDSTable. Note that
this is the number of link-layer packets, so if a single
network-layer packet is fragmented into several link-layer
frames, this counter is incremented several times.
readonly
The number of octets in packets of this protocol type
transmitted from the source address to the destination address
since this entry was added to the alMatrixDSTable (excluding
framing bits, but including FCS octets), excluding octets
in packets that contained errors.
Note that this doesn't count just those octets in the particular
protocol frames but includes the entire packet that contained
the protocol.
readonly
The value of sysUpTime when this entry was last activated.
This can be used by the management station to ensure that the
entry has not been deleted and recreated between polls.
A set of parameters that control the creation of a
report of the top N matrix entries according to
a selected metric.
A conceptual row in the alMatrixTopNControlTable.
An example of the indexing of this table is
alMatrixTopNControlDuration.3
noaccess
An index that uniquely identifies an entry
in the alMatrixTopNControlTable. Each such
entry defines one topN report prepared for
one interface.
readwrite
The alMatrix[SD/DS] table for which a topN report will be
prepared on behalf of this entry. The alMatrix[SD/DS] table
is identified by the value of the hlMatrixControlIndex
for that table - that value is used here to identify the
particular table.
This object may not be modified if the associated
alMatrixTopNControlStatus object is equal to active(1).
readwrite
This object controls which alMatrix[SD/DS] entry that the
alMatrixTopNEntries are sorted by, which view of the matrix
table that will be used, as well as which table the results
will be reported in.
The values alMatrixTopNTerminalsPkts,
alMatrixTopNTerminalsOctets,
alMatrixTopNTerminalsHighCapacityPkts, and
alMatrixTopNTerminalsHighCapacityOctets cause collection
only from protocols that have no child protocols that are
counted. The values alMatrixTopNAllPkts,
alMatrixTopNAllOctets, alMatrixTopNAllHighCapacityPkts, and
alMatrixTopNAllHighCapacityOctets cause collection from all
alMatrix entries.
This object may not be modified if the associated
alMatrixTopNControlStatus object is equal to active(1).
readwrite1800
The number of seconds left in the report currently
being collected. When this object is modified by
the management station, a new collection is started,
possibly aborting a currently running report. The
new value is used as the requested duration of this
report and is immediately loaded into the associated
alMatrixTopNControlDuration object.
When the report finishes, the probe will automatically
start another collection with the same initial value
of alMatrixTopNControlTimeRemaining. Thus, the management
station may simply read the resulting reports repeatedly,
checking the startTime and duration each time to ensure that a
report was not missed or that the report parameters were not
changed.
While the value of this object is non-zero, it decrements
by one per second until it reaches zero. At the time
that this object decrements to zero, the report is made
accessible in the alMatrixTopNTable, overwriting any report
that may be there.
When this object is modified by the management station, any
associated entries in the alMatrixTopNTable shall be deleted.
(Note that this is a different algorithm than the one used
in the hostTopNTable).
readonly
The number of reports that have been generated by this entry.
readonly
The number of seconds that this report has collected
during the last sampling interval.
When the associated alMatrixTopNControlTimeRemaining object
is set, this object shall be set by the probe to the
same value and shall not be modified until the next
time the alMatrixTopNControlTimeRemaining is set.
This value shall be zero if no reports have been
requested for this alMatrixTopNControlEntry.
readwrite150
The maximum number of matrix entries requested for this report.
When this object is created or modified, the probe
should set alMatrixTopNControlGrantedSize as closely to this
object as possible for the particular probe
implementation and available resources.
readonly
The maximum number of matrix entries in this report.
When the associated alMatrixTopNControlRequestedSize object
is created or modified, the probe should set this
object as closely to the requested value as
possible for the particular implementation and
available resources. The probe must not lower this
value except as a side-effect of a set to the associated
alMatrixTopNControlRequestedSize object.
If the value of alMatrixTopNControlRateBase is equal to
alMatrixTopNTerminalsPkts or alMatrixTopNAllPkts, when the
next topN report is generated, matrix entries with the highest
value of alMatrixTopNPktRate shall be placed in this table in
decreasing order of this rate until there is no more room or
until there are no more matrix entries.
If the value of alMatrixTopNControlRateBase is equal to
alMatrixTopNTerminalsOctets or alMatrixTopNAllOctets, when the
next topN report is generated, matrix entries with the highest
value of alMatrixTopNOctetRate shall be placed in this table
in decreasing order of this rate until there is no more room
or until there are no more matrix entries.
It is an implementation-specific matter how entries with the
same value of alMatrixTopNPktRate or alMatrixTopNOctetRate are
sorted. It is also an implementation-specific matter as to
whether zero-valued entries are available.
readonly
The value of sysUpTime when this topN report was
last started. In other words, this is the time that
the associated alMatrixTopNControlTimeRemaining object
was modified to start the requested report or the time
the report was last automatically (re)started.
This object may be used by the management station to
determine whether a report was missed.
readwrite
The entity that configured this entry and is
therefore using the resources assigned to it.
readwrite
The status of this alMatrixTopNControlEntry.
An entry may not exist in the active state unless all
objects in the entry have an appropriate value.
If this object is not equal to active(1), all
associated entries in the alMatrixTopNTable shall be
deleted by the agent.
A set of statistics for those application-layer matrix
entries that have counted the highest number of octets or
packets.
A conceptual row in the alMatrixTopNTable.
The alMatrixTopNControlIndex value in the index identifies
the alMatrixTopNControlEntry on whose behalf this entry was
created.
An example of the indexing of this table is
alMatrixTopNPktRate.3.10
noaccess
An index that uniquely identifies an entry in
the alMatrixTopNTable among those in the same report.
This index is between 1 and N, where N is the
number of entries in this report.
If the value of alMatrixTopNControlRateBase is equal to
alMatrixTopNTerminalsPkts or alMatrixTopNAllPkts, increasing
values of alMatrixTopNIndex shall be assigned to entries with
decreasing values of alMatrixTopNPktRate until index N is
assigned or there are no more alMatrixTopNEntries.
If the value of alMatrixTopNControlRateBase is equal to
alMatrixTopNTerminalsOctets or alMatrixTopNAllOctets,
increasing values of alMatrixTopNIndex shall be assigned to
entries with decreasing values of alMatrixTopNOctetRate until
index N is assigned or there are no more alMatrixTopNEntries.
readonly
The protocolDirLocalIndex of the network-layer protocol of
this entry's network address.
readonly
The network-layer address of the source host in this
conversation.
This is represented as an octet string with
specific semantics and length as identified
by the associated alMatrixTopNProtocolDirLocalIndex.
For example, if the alMatrixTopNProtocolDirLocalIndex
indicates an encapsulation of IP, this object is encoded as a
length octet of 4, followed by the 4 octets of the IP address,
in network byte order.
readonly
The network-layer address of the destination host in this
conversation.
This is represented as an octet string with
specific semantics and length as identified
by the associated alMatrixTopNProtocolDirLocalIndex.
For example, if the alMatrixTopNProtocolDirLocalIndex
indicates an encapsulation of IP, this object is encoded as a
length octet of 4, followed by the 4 octets of the IP address,
in network byte order.
readonly
The type of the protocol counted by this matrix entry.
readonly
The number of packets seen of this protocol from the source
host to the destination host during this sampling interval,
counted using the rules for counting the alMatrixSDPkts
object.
If the value of alMatrixTopNControlRateBase is
alMatrixTopNTerminalsPkts or alMatrixTopNAllPkts, this
variable will be used to sort this report.
readonly
The number of packets seen of this protocol from the
destination host to the source host during this sampling
interval, counted using the rules for counting the
alMatrixDSPkts object. (Note that the corresponding
alMatrixSDPkts object selected is the one whose source address
is equal to alMatrixTopNDestAddress and whose destination
address is equal to alMatrixTopNSourceAddress.)
Note that if the value of alMatrixTopNControlRateBase is equal
to alMatrixTopNTerminalsPkts or alMatrixTopNAllPkts, the sort
of topN entries is based entirely on alMatrixTopNPktRate, and
not on the value of this object.
readonly
The number of octets seen of this protocol from the source
host to the destination host during this sampling interval,
counted using the rules for counting the alMatrixSDOctets
object.
If the value of alMatrixTopNControlRateBase is
alMatrixTopNTerminalsOctets or alMatrixTopNAllOctets, this
variable will be used to sort this report.
readonly
The number of octets seen of this protocol from the
destination host to the source host during this sampling
interval, counted using the rules for counting the
alMatrixDSOctets object. (Note that the corresponding
alMatrixSDOctets object selected is the one whose source
address is equal to alMatrixTopNDestAddress and whose
destination address is equal to alMatrixTopNSourceAddress.)
Note that if the value of alMatrixTopNControlRateBase is equal
to alMatrixTopNTerminalsOctets or alMatrixTopNAllOctets, the
sort of topN entries is based entirely on
alMatrixTopNOctetRate, and not on the value of this object.
A list of data-collection configuration entries.
A list of parameters that set up a group of user-defined
MIB objects to be sampled periodically (called a
bucket-group).
For example, an instance of usrHistoryControlInterval
might be named usrHistoryControlInterval.1
noaccess
An index that uniquely identifies an entry in the
usrHistoryControlTable. Each such entry defines a
set of samples at a particular interval for a specified
set of MIB instances available from the managed system.
readwrite
The number of MIB objects to be collected
in the portion of usrHistoryTable associated with this
usrHistoryControlEntry.
This object may not be modified if the associated instance
of usrHistoryControlStatus is equal to active(1).
readwrite50
The requested number of discrete time intervals
over which data is to be saved in the part of the
usrHistoryTable associated with this usrHistoryControlEntry.
When this object is created or modified, the probe
should set usrHistoryControlBucketsGranted as closely to
this object as possible for the particular probe
implementation and available resources.
readonly
The number of discrete sampling intervals
over which data shall be saved in the part of
the usrHistoryTable associated with this
usrHistoryControlEntry.
When the associated usrHistoryControlBucketsRequested
object is created or modified, the probe should set
this object as closely to the requested value as
possible for the particular probe implementation and
available resources. The probe must not lower this
value except as a result of a modification to the associated
usrHistoryControlBucketsRequested object.
The associated usrHistoryControlBucketsRequested object
should be set before or at the same time as this object
to allow the probe to accurately estimate the resources
required for this usrHistoryControlEntry.
There will be times when the actual number of buckets
associated with this entry is less than the value of
this object. In this case, at the end of each sampling
interval, a new bucket will be added to the usrHistoryTable.
When the number of buckets reaches the value of this object
and a new bucket is to be added to the usrHistoryTable,
the oldest bucket associated with this usrHistoryControlEntry
shall be deleted by the agent so that the new bucket can be
added.
When the value of this object changes to a value less than
the current value, entries are deleted from the
usrHistoryTable associated with this usrHistoryControlEntry.
Enough of the oldest of these entries shall be deleted by the
agent so that their number remains less than or equal to the
new value of this object.
When the value of this object changes to a value greater
than the current value, the number of associated usrHistory
entries may be allowed to grow.
readwrite1800
The interval in seconds over which the data is
sampled for each bucket in the part of the usrHistory
table associated with this usrHistoryControlEntry.
Because the counters in a bucket may overflow at their
maximum value with no indication, a prudent manager will
take into account the possibility of overflow in any of
the associated counters. It is important to consider the
minimum time in which any counter could overflow on a
particular media type and to set the usrHistoryControlInterval
object to a value less than this interval.
This object may not be modified if the associated
usrHistoryControlStatus object is equal to active(1).
readwrite
The entity that configured this entry and is
therefore using the resources assigned to it.
readwrite
The status of this variable history control entry.
An entry may not exist in the active state unless all
objects in the entry have an appropriate value.
If this object is not equal to active(1), all associated
entries in the usrHistoryTable shall be deleted.
A list of data-collection configuration entries.
A list of MIB instances to be sampled periodically.
Entries in this table are created when an associated
usrHistoryControlObjects object is created.
The usrHistoryControlIndex value in the index is
that of the associated usrHistoryControlEntry.
For example, an instance of usrHistoryObjectVariable might be
usrHistoryObjectVariable.1.3
noaccess
An index used to uniquely identify an entry in the
usrHistoryObject table. Each such entry defines a
MIB instance to be collected periodically.
readwrite
The object identifier of the particular variable to be
sampled.
Only variables that resolve to an ASN.1 primitive type of
Integer32 (Integer32, Counter, Gauge, or TimeTicks) may be
sampled.
Because SNMP access control is articulated entirely in terms
of the contents of MIB views, no access control mechanism
exists that can restrict the value of this object to identify
only those objects that exist in a particular MIB view.
Because there is thus no acceptable means of restricting the
read access that could be obtained through the user history
mechanism, the probe must only grant write access to this
object in those views that have read access to all objects on
the probe. See USM [RFC3414] and VACM [RFC3415] for more
information.
During a set operation, if the supplied variable name is not
available in the selected MIB view, a badValue error must be
returned.
This object may not be modified if the associated
usrHistoryControlStatus object is equal to active(1).
readwrite
The method of sampling the selected variable for storage in
the usrHistoryTable.
If the value of this object is absoluteValue(1), the value of
the selected variable will be copied directly into the history
bucket.
If the value of this object is deltaValue(2), the value of the
selected variable at the last sample will be subtracted from
the current value, and the difference will be stored in the
history bucket. If the associated usrHistoryObjectVariable
instance could not be obtained at the previous sample
interval, then a delta sample is not possible, and the value
of the associated usrHistoryValStatus object for this interval
will be valueNotAvailable(1).
This object may not be modified if the associated
usrHistoryControlStatus object is equal to active(1).
A list of user-defined history entries.
A historical sample of user-defined variables. This sample
is associated with the usrHistoryControlEntry that set up the
parameters for a regular collection of these samples.
The usrHistoryControlIndex value in the index identifies the
usrHistoryControlEntry on whose behalf this entry was created.
The usrHistoryObjectIndex value in the index identifies the
usrHistoryObjectEntry on whose behalf this entry was created.
For example, an instance of usrHistoryAbsValue, which represents
the 14th sample of a variable collected as specified by
usrHistoryControlEntry.1 and usrHistoryObjectEntry.1.5,
would be named usrHistoryAbsValue.1.14.5
noaccess
An index that uniquely identifies the particular sample this
entry represents among all samples associated with the same
usrHistoryControlEntry. This index starts at 1 and increases
by one as each new sample is taken.
readonly
The value of sysUpTime at the start of the interval over
which this sample was measured. If the probe keeps track of
the time of day, it should start the first sample of the
history at a time such that when the next hour of the day
begins, a sample is started at that instant.
Note that following this rule may require that the probe delay
collecting the first sample of the history, as each sample
must be of the same interval. Also note that the sample that
is currently being collected is not accessible in this table
until the end of its interval.
readonly
The value of sysUpTime at the end of the interval over which
this sample was measured.
readonly
The absolute value (i.e., unsigned value) of the
user-specified statistic during the last sampling period. The
value during the current sampling period is not made available
until the period is completed.
To obtain the true value for this sampling interval, the
associated instance of usrHistoryValStatus must be checked,
and usrHistoryAbsValue adjusted as necessary.
If the MIB instance could not be accessed during the sampling
interval, then this object will have a value of zero, and the
associated instance of usrHistoryValStatus will be set to
'valueNotAvailable(1)'.
The access control check prescribed in the definition of
usrHistoryObjectVariable SHOULD be checked for each sampling
interval. If this check determines that access should not be
allowed, then this object will have a value of zero, and the
associated instance of usrHistoryValStatus will be set to
'valueNotAvailable(1)'.
readonly
This object indicates the validity and sign of the data in
the associated instance of usrHistoryAbsValue.
If the MIB instance could not be accessed during the sampling
interval, then 'valueNotAvailable(1)' will be returned.
If the sample is valid and the actual value of the sample is
greater than or equal to zero, then 'valuePositive(2)' is
returned.
If the sample is valid and the actual value of the sample is
less than zero, 'valueNegative(3)' will be returned. The
associated instance of usrHistoryAbsValue should be multiplied
by -1 to obtain the true sample value.
readonly
An indication of the RMON MIB groups supported
on at least one interface by this probe.
readonly
The software revision of this device. This string will have
a zero length if the revision is unknown.
readonly
The hardware revision of this device. This string will have
a zero length if the revision is unknown.
readwrite
Probe's current date and time.
field octets contents range
----- ------ -------- -----
1 1-2 year 0..65536
2 3 month 1..12
3 4 day 1..31
4 5 hour 0..23
5 6 minutes 0..59
6 7 seconds 0..60
(use 60 for leap-second)
7 8 deci-seconds 0..9
8 9 direction from UTC '+' / '-'
9 10 hours from UTC 0..11
10 11 minutes from UTC 0..59
For example, Tuesday May 26, 1992 at 1:30:15 PM
EDT would be displayed as:
1992-5-26,13:30:15.0,-4:0
Note that if only local time is known, then
time zone information (fields 8-10) is not
present, and that if no time information is known, the
null string is returned.
readwrite
Setting this object to warmBoot(2) causes the device to
restart the application software with current configuration
parameters saved in non-volatile memory. Setting this
object to coldBoot(3) causes the device to reinitialize
configuration parameters in non-volatile memory to default
values and to restart the application software. When the device
is running normally, this variable has a value of
running(1).
readwrite
The file name to be downloaded from the TFTP server when a
download is next requested via this MIB. This value is set to
the zero-length string when no file name has been specified.
This object has been deprecated, as it has not had enough
independent implementations to demonstrate interoperability to
meet the requirements of a Draft Standard.
readwrite
The IP address of the TFTP server that contains the boot
image to load when a download is next requested via this MIB.
This value is set to '0.0.0.0' when no IP address has been
specified.
This object has been deprecated, as it has not had enough
independent implementations to demonstrate interoperability to
meet the requirements of a Draft Standard.
readwrite
When this object is set to downloadToRAM(3) or
downloadToPROM(2), the device will discontinue its
normal operation and begin download of the image specified
by probeDownloadFile from the server specified by
probeDownloadTFTPServer using the TFTP protocol. If
downloadToRAM(3) is specified, the new image is copied
to RAM only (the old image remains unaltered in the flash
EPROM). If downloadToPROM(2) is specified,
the new image is written to the flash EPROM
memory after its checksum has been verified to be correct.
When the download process is completed, the device will
warm boot to restart the newly loaded application.
When the device is not downloading, this object will have
a value of notDownloading(1).
This object has been deprecated, as it has not had enough
independent implementations to demonstrate interoperability to
meet the requirements of a Draft Standard.
readonly
The status of the last download procedure, if any. This
object will have a value of downloadStatusUnknown(2) if no
download process has been performed.
This object has been deprecated, as it has not had enough
independent implementations to demonstrate interoperability to
meet the requirements of a Draft Standard.
A table of serial interface configuration entries. This data
will be stored in non-volatile memory and preserved across
probe resets or power loss.
This table has been deprecated, as it has not had enough
independent implementations to demonstrate interoperability to
meet the requirements of a Draft Standard.
A set of configuration parameters for a particular
serial interface on this device. If the device has no serial
interfaces, this table is empty.
The index is composed of the ifIndex assigned to this serial
line interface.
readwritedirect
The type of incoming connection to be expected on this
serial interface.
readwriteslip
The type of data link encapsulation to be used on this
serial interface.
readwrite300
This timeout value is used when the Management Station has
initiated the conversation over the serial link. This variable
represents the number of seconds of inactivity allowed before
terminating the connection on this serial interface. Use the
serialDialoutTimeout in the case where the probe has initiated
the connection for the purpose of sending a trap.
readwrite
A control string that controls how a modem attached to this
serial interface should be initialized. The initialization
is performed once during startup and again after each
connection is terminated if the associated serialMode has the
value of modem(2).
A control string that is appropriate for a wide variety of
modems is: '^s^MATE0Q0V1X4 S0=1 S2=43^M'.
readwrite
A control string that specifies how to disconnect a modem
connection on this serial interface. This object is only
meaningful if the associated serialMode has the value
of modem(2).
A control string that is appropriate for a wide variety of
modems is: '^d2^s+++^d2^sATH0^M^d2'.
readwrite
An ASCII string containing substrings that describe the
expected modem connection response code and associated bps
rate. The substrings are delimited by the first character
in the string, for example:
/CONNECT/300/CONNECT 1200/1200/CONNECT 2400/2400/
CONNECT 4800/4800/CONNECT 9600/9600
will be interpreted as:
response code bps rate
CONNECT 300
CONNECT 1200 1200
CONNECT 2400 2400
CONNECT 4800 4800
CONNECT 9600 9600
The agent will use the information in this string to adjust
the bps rate of this serial interface once a modem connection
is established.
A value that is appropriate for a wide variety of modems is:
'/CONNECT/300/CONNECT 1200/1200/CONNECT 2400/2400/
CONNECT 4800/4800/CONNECT 9600/9600/CONNECT 14400/14400/
CONNECT 19200/19200/CONNECT 38400/38400/'.
readwrite
An ASCII string containing response codes that may be
generated by a modem to report the reason why a connection
attempt has failed. The response codes are delimited by
the first character in the string, for example:
/NO CARRIER/BUSY/NO DIALTONE/NO ANSWER/ERROR/
If one of these response codes is received via this serial
interface while attempting to make a modem connection,
the agent will issue the hang up command as specified by
serialModemHangUpString.
A value that is appropriate for a wide variety of modems is:
'/NO CARRIER/BUSY/NO DIALTONE/NO ANSWER/ERROR/'.
readwrite20
This timeout value is used when the probe initiates the
serial connection with the intention of contacting a
management station. This variable represents the number
of seconds of inactivity allowed before terminating the
connection on this serial interface.
readwrite
The status of this serialConfigEntry.
An entry may not exist in the active state unless all
objects in the entry have an appropriate value.
A table of netConfigEntries.
This table has been deprecated, as it has not had enough
independent implementations to demonstrate interoperability to
meet the requirements of a Draft Standard.
A set of configuration parameters for a particular
network interface on this device. If the device has no network
interface, this table is empty.
The index is composed of the ifIndex assigned to the
corresponding interface.
readwrite
The IP address of this Net interface. The default value
for this object is 0.0.0.0. If either the netConfigIPAddress
or netConfigSubnetMask is 0.0.0.0, then when the device
boots, it may use BOOTP to try to figure out what these
values should be. If BOOTP fails before the device
can talk on the network, this value must be configured
(e.g., through a terminal attached to the device). If BOOTP is
used, care should be taken to not send BOOTP broadcasts too
frequently and to eventually send them very infrequently if no
replies are received.
readwrite
The subnet mask of this Net interface. The default value
for this object is 0.0.0.0. If either the netConfigIPAddress
or netConfigSubnetMask is 0.0.0.0, then when the device
boots, it may use BOOTP to try to figure out what these
values should be. If BOOTP fails before the device
can talk on the network, this value must be configured
(e.g., through a terminal attached to the device). If BOOTP is
used, care should be taken to not send BOOTP broadcasts too
frequently and to eventually send them very infrequently if no
replies are received.
readwrite
The status of this netConfigEntry.
An entry may not exist in the active state unless all
objects in the entry have an appropriate value.
readwrite
The IP Address of the default gateway. If this value is
undefined or unknown, it shall have the value 0.0.0.0.
A list of trap destination entries.
This entry includes a destination IP address to which
traps are sent for this community.
noaccess
A value that uniquely identifies this trapDestEntry.
readwrite
A community to which this destination address belongs.
This entry is associated with any eventEntries in the RMON
MIB whose value of eventCommunity is equal to the value of
this object. Every time an associated event entry sends a
trap due to an event, that trap will be sent to each
address in the trapDestTable with a trapDestCommunity equal
to eventCommunity, as long as no access control mechanism
precludes it (e.g., VACM).
This object may not be modified if the associated
trapDestStatus object is equal to active(1).
readwrite
The protocol with which this trap is to be sent.
readwrite
The destination address for traps on behalf of this entry.
If the associated trapDestProtocol object is equal to ip(1),
the encoding of this object is the same as the snmpUDPAddress
textual convention in RFC 3417, 'Transport Mappings for the
Simple Network Management Protocol (SNMP)' [RFC3417]:
-- for a SnmpUDPAddress of length 6:
--
-- octets contents encoding
-- 1-4 IP-address network-byte order
-- 5-6 UDP-port network-byte order
If the associated trapDestProtocol object is equal to ipx(2),
the encoding of this object is the same as the snmpIPXAddress
textual convention in RFC 3417, 'Transport Mappings for the
Simple Network Management Protocol (SNMP)' [RFC3417]:
-- for a SnmpIPXAddress of length 12:
--
-- octets contents encoding
-- 1-4 network-number network-byte order
-- 5-10 physical-address network-byte order
-- 11-12 socket-number network-byte order
This object may not be modified if the associated
trapDestStatus object is equal to active(1).
readwrite
The entity that configured this entry and is
therefore using the resources assigned to it.
readwrite
The status of this trap destination entry.
An entry may not exist in the active state unless all
objects in the entry have an appropriate value.
A list of serialConnectionEntries.
This table has been deprecated, as it has not had enough
independent implementations to demonstrate interoperability
to meet the requirements of a Draft Standard.
Configuration for a SLIP link over a serial line.
noaccess
A value that uniquely identifies this serialConnection
entry.
readwrite
The IP Address that can be reached at the other end of this
serial connection.
This object may not be modified if the associated
serialConnectStatus object is equal to active(1).
readwritedirect
The type of outgoing connection to be made. If this object
has the value direct(1), then a direct serial connection
is assumed. If this object has the value modem(2),
then serialConnectDialString will be used to make a modem
connection. If this object has the value switch(3),
then serialConnectSwitchConnectSeq will be used to establish
the connection over a serial data switch, and
serialConnectSwitchDisconnectSeq will be used to terminate
the connection. If this object has the value
modem-switch(4), then a modem connection will be made first,
followed by the switch connection.
This object may not be modified if the associated
serialConnectStatus object is equal to active(1).
readwrite
A control string that specifies how to dial the phone
number in order to establish a modem connection. The
string should include the dialing prefix and suffix. For
example: '^s^MATD9,888-1234^M' will instruct the Probe
to send a carriage return, followed by the dialing prefix
'ATD', the phone number '9,888-1234', and a carriage
return as the dialing suffix.
This object may not be modified if the associated
serialConnectStatus object is equal to active(1).
readwrite
A control string that specifies how to establish a
data switch connection.
This object may not be modified if the associated
serialConnectStatus object is equal to active(1).
readwrite
A control string that specifies how to terminate a
data switch connection.
This object may not be modified if the associated
serialConnectStatus object is equal to active(1).
readwrite
A control string that specifies how to reset a data
switch in the event of a timeout.
This object may not be modified if the associated
serialConnectStatus object is equal to active(1).
readwrite
The entity that configured this entry and is
therefore using the resources assigned to it.
readwrite
The status of this serialConnectionEntry.
If the manager attempts to set this object to active(1) when
the serialConnectType is set to modem(2) or modem-switch(4)
and the serialConnectDialString is a zero-length string or
cannot be correctly parsed as a ConnectString, the set
request will be rejected with badValue(3).
If the manager attempts to set this object to active(1) when
the serialConnectType is set to switch(3) or modem-switch(4)
and the serialConnectSwitchConnectSeq,
the serialConnectSwitchDisconnectSeq, or
the serialConnectSwitchResetSeq is a zero-length string
or cannot be correctly parsed as a ConnectString, the set
request will be rejected with badValue(3).
An entry may not exist in the active state unless all
objects in the entry have an appropriate value.
Lists the inventory of protocols the probe has the
capability of monitoring and allows the addition, deletion,
and configuration of entries in this list.
Collects the relative amounts of octets and packets for the
different protocols detected on a network segment.
Lists MAC address to network address bindings discovered by
the probe and what interface they were last seen on.
Counts the amount of traffic sent from and to each network
address discovered by the probe. Note that while the
hlHostControlTable also has objects that control an optional
alHostTable, implementation of the alHostTable is not
required to fully implement this group.
Counts the amount of traffic sent between each pair of
network addresses discovered by the probe. Note that while
the hlMatrixControlTable also has objects that control
optional alMatrixTables, implementation of the
alMatrixTables is not required to fully implement this
group.
Counts the amount of traffic, by protocol, sent from and to
each network address discovered by the probe. Implementation
of this group requires implementation of the Network-Layer
Host Group.
Counts the amount of traffic, by protocol, sent between each
pair of network addresses discovered by the
probe. Implementation of this group requires implementation
of the Network-Layer Matrix Group.
The usrHistoryGroup provides user-defined collection of
historical information from MIB objects on the probe.
This group describes various operating parameters of the
probe and controls the local time of the probe.
This group controls the configuration of various operating
parameters of the probe. This group is not referenced by any
MODULE-COMPLIANCE macro because it is 'grandfathered' from
more recent MIB review rules that would require it.
This group adds some enhancements to RMON-1 that help
management stations.
This group adds some enhancements to RMON-1 that help
management stations.
This group adds some enhancements to RMON-1 that help
management stations. This group is not referenced by any
MODULE-COMPLIANCE macro because it is 'grandfathered' from
more recent MIB review rules that would require it.
Describes the requirements for conformance to
the RMON2 MIB
Conformance to RMON2 requires only support for these
values of nlMatrixTopNControlRateBase.
Describes the requirements for conformance to
the RMON2 MIB with Application-Layer Enhancements.
Conformance to RMON2 requires only support for these
values of nlMatrixTopNControlRateBase.
Conformance to RMON2 requires only support for these
values of alMatrixTopNControlRateBase.