SOURCE-ROUTING-MIB DEFINITIONS ::= BEGIN

IMPORTS

        Counter, Gauge

                FROM RFC1155-SMI

        dot1dBridge, dot1dSr

                FROM BRIDGE-MIB

        OBJECT-TYPE

                FROM RFC-1212;

-- groups in the SR MIB

-- dot1dSr is imported from the Bridge MIB

dot1dPortPair   OBJECT IDENTIFIER ::= { dot1dBridge 10 }

-- the dot1dSr group

-- this group is implemented by those bridges that

-- support the source route bridging mode, including Source

-- Routing and SRT bridges.

dot1dSrPortTable OBJECT-TYPE

    SYNTAX  SEQUENCE OF Dot1dSrPortEntry

    ACCESS  not-accessible

    STATUS  mandatory

    DESCRIPTION

            "A table that contains information about every

            port that is associated with this source route

            bridge."

    ::= { dot1dSr 1 }

dot1dSrPortEntry OBJECT-TYPE

    SYNTAX  Dot1dSrPortEntry

    ACCESS  not-accessible

    STATUS  mandatory

    DESCRIPTION

            "A list of information for each port of a source

            route bridge."

    INDEX   { dot1dSrPort }

    ::= { dot1dSrPortTable 1 }

Dot1dSrPortEntry ::=

    SEQUENCE {

        dot1dSrPort

            INTEGER,

        dot1dSrPortHopCount

            INTEGER,

        dot1dSrPortLocalSegment

            INTEGER,

        dot1dSrPortBridgeNum

            INTEGER,

        dot1dSrPortTargetSegment

            INTEGER,

        dot1dSrPortLargestFrame

            INTEGER,

        dot1dSrPortSTESpanMode

            INTEGER,

        dot1dSrPortSpecInFrames

            Counter,

        dot1dSrPortSpecOutFrames

            Counter,

        dot1dSrPortApeInFrames

            Counter,

        dot1dSrPortApeOutFrames

            Counter,

        dot1dSrPortSteInFrames

            Counter,

        dot1dSrPortSteOutFrames

            Counter,

        dot1dSrPortSegmentMismatchDiscards

            Counter,

        dot1dSrPortDuplicateSegmentDiscards

            Counter,

        dot1dSrPortHopCountExceededDiscards

            Counter,

        dot1dSrPortDupLanIdOrTreeErrors

            Counter,

        dot1dSrPortLanIdMismatches

            Counter

    }

dot1dSrPort OBJECT-TYPE

    SYNTAX  INTEGER (1..65535)

    ACCESS  read-only

    STATUS  mandatory

    DESCRIPTION

            "The port number of the port for which this entry

            contains Source Route management information."

    ::= { dot1dSrPortEntry 1 }

dot1dSrPortHopCount OBJECT-TYPE

    SYNTAX  INTEGER

    ACCESS  read-write

    STATUS  mandatory

    DESCRIPTION

            "The maximum number of routing descriptors allowed

            in an All Paths or Spanning Tree Explorer frames."

    ::= { dot1dSrPortEntry 2 }

dot1dSrPortLocalSegment OBJECT-TYPE

    SYNTAX  INTEGER

    ACCESS  read-write

    STATUS  mandatory

    DESCRIPTION

            "The segment number that uniquely identifies the

            segment to which this port is connected. Current

            source routing protocols limit this value to the

            range: 0 through 4095. (The value 0 is used by

            some management applications for special test

            cases.) A value of 65535 signifies that no segment

            number is assigned to this port."

    ::= { dot1dSrPortEntry 3 }

dot1dSrPortBridgeNum OBJECT-TYPE

    SYNTAX  INTEGER

    ACCESS  read-write

    STATUS  mandatory

    DESCRIPTION

            "A bridge number uniquely identifies a bridge when

            more than one bridge is used to span the same two

            segments.  Current source routing protocols limit

            this value to the range: 0 through 15. A value of

            65535 signifies that no bridge number is assigned

            to this bridge."

    ::= { dot1dSrPortEntry 4 }

dot1dSrPortTargetSegment OBJECT-TYPE

    SYNTAX  INTEGER

    ACCESS  read-write

    STATUS  mandatory

    DESCRIPTION

            "The segment number that corresponds to the target

            segment this port is considered to be connected to

            by the bridge.  Current source routing protocols

            limit this value to the range: 0 through 4095.

            (The value 0 is used by some management

            applications for special test cases.) A value of

            65535 signifies that no target segment is assigned

            to this port."

    ::= { dot1dSrPortEntry 5 }

-- It would be nice if we could use ifMtu as the size of the

-- largest frame, but we can't because ifMtu is defined to be

-- the size that the (inter-)network layer can use which can

-- differ from the MAC layer (especially if several layers of

-- encapsulation are used).

dot1dSrPortLargestFrame OBJECT-TYPE

    SYNTAX  INTEGER

    ACCESS  read-write

    STATUS  mandatory

    DESCRIPTION

            "The maximum size of the INFO field (LLC and

            above) that this port can send/receive.  It does

            not include any MAC level (framing) octets.  The

            value of this object is used by this bridge to

            determine whether a modification of the

            LargestFrame (LF, see [14]) field of the Routing

            Control field of the Routing Information Field is

            necessary.

            64 valid values are defined by the IEEE 802.5M SRT

            Addendum: 516, 635, 754, 873, 993, 1112, 1231,

            1350, 1470, 1542, 1615, 1688, 1761, 1833, 1906,

            1979, 2052, 2345, 2638, 2932, 3225, 3518, 3812,

            4105, 4399, 4865, 5331, 5798, 6264, 6730, 7197,

            7663, 8130, 8539, 8949, 9358, 9768, 10178, 10587,

            10997, 11407, 12199, 12992, 13785, 14578, 15370,

            16163, 16956, 17749, 20730, 23711, 26693, 29674,

            32655, 35637, 38618, 41600, 44591, 47583, 50575,

            53567, 56559, 59551, and 65535.

            An illegal value will not be accepted by the

            bridge."

    ::= { dot1dSrPortEntry 6 }

dot1dSrPortSTESpanMode OBJECT-TYPE

    SYNTAX  INTEGER {

                auto-span(1),

                disabled(2),

                forced(3)

            }

    ACCESS  read-write

    STATUS  mandatory

    DESCRIPTION

            "Determines how this port behaves when presented

            with a Spanning Tree Explorer frame.  The value

            'disabled(2)' indicates that the port will not

            accept or send Spanning Tree Explorer packets; any

            STE packets received will be silently discarded.

            The value 'forced(3)' indicates the port will

            always accept and propagate Spanning Tree Explorer

            frames.  This allows a manually configured

            Spanning Tree for this class of packet to be

            configured.  Note that unlike transparent

            bridging, this is not catastrophic to the network

            if there are loops.  The value 'auto-span(1)' can

            only be returned by a bridge that both implements

            the Spanning Tree Protocol and has use of the

            protocol enabled on this port. The behavior of the

            port for Spanning Tree Explorer frames is

            determined by the state of dot1dStpPortState.  If

            the port is in the 'forwarding' state, the frame

            will be accepted or propagated.  Otherwise, it

            will be silently discarded."

    ::= { dot1dSrPortEntry 7 }

dot1dSrPortSpecInFrames OBJECT-TYPE

    SYNTAX  Counter

    ACCESS  read-only

    STATUS  mandatory

    DESCRIPTION

            "The number of Specifically Routed frames, also

            referred to as Source Routed Frames, that have

            been received from this port's segment."

    ::= { dot1dSrPortEntry 8 }

dot1dSrPortSpecOutFrames OBJECT-TYPE

    SYNTAX  Counter

    ACCESS  read-only

    STATUS  mandatory

    DESCRIPTION

            "The number of Specifically Routed frames, also

            referred to as Source Routed Frames, that this

            port has transmitted on its segment."

    ::= { dot1dSrPortEntry 9 }

dot1dSrPortApeInFrames OBJECT-TYPE

    SYNTAX  Counter

    ACCESS  read-only

    STATUS  mandatory

    DESCRIPTION

            "The number of All Paths Explorer frames, also

            referred to as All Routes Explorer frames, that

            have been received by this port from its segment."

    ::= { dot1dSrPortEntry 10 }

dot1dSrPortApeOutFrames OBJECT-TYPE

    SYNTAX  Counter

    ACCESS  read-only

    STATUS  mandatory

    DESCRIPTION

            "The number of all Paths Explorer Frames, also

            referred to as All Routes Explorer frames, that

            have been transmitted by this port on its

            segment."

    ::= { dot1dSrPortEntry 11 }

dot1dSrPortSteInFrames OBJECT-TYPE

    SYNTAX  Counter

    ACCESS  read-only

    STATUS  mandatory

    DESCRIPTION

            "The number of spanning tree explorer frames that

            have been received by this port from its segment."

    ::= { dot1dSrPortEntry 12 }

dot1dSrPortSteOutFrames OBJECT-TYPE

    SYNTAX  Counter

    ACCESS  read-only

    STATUS  mandatory

    DESCRIPTION

            "The number of spanning tree explorer frames that

            have been transmitted by this port on its

            segment."

    ::= { dot1dSrPortEntry 13 }

dot1dSrPortSegmentMismatchDiscards OBJECT-TYPE

    SYNTAX  Counter

    ACCESS  read-only

    STATUS  mandatory

    DESCRIPTION

            "The number of explorer frames that have been

            discarded by this port because the routing

            descriptor field contained an invalid adjacent

            segment value."

    ::= { dot1dSrPortEntry 14 }

dot1dSrPortDuplicateSegmentDiscards OBJECT-TYPE

    SYNTAX  Counter

    ACCESS  read-only

    STATUS  mandatory

    DESCRIPTION

            "The number of frames that have been discarded by

            this port because the routing descriptor field

            contained a duplicate segment identifier."

    ::= { dot1dSrPortEntry 15 }

dot1dSrPortHopCountExceededDiscards OBJECT-TYPE

    SYNTAX  Counter

    ACCESS  read-only

    STATUS  mandatory

    DESCRIPTION

            "The number of explorer frames that have been

            discarded by this port because the Routing

            Information Field has exceeded the maximum route

            descriptor length."

    ::= { dot1dSrPortEntry 16 }

dot1dSrPortDupLanIdOrTreeErrors OBJECT-TYPE

    SYNTAX  Counter

    ACCESS  read-only

    STATUS  mandatory

    DESCRIPTION

            "The number of duplicate LAN IDs or Tree errors.

            This helps in detection of problems in networks

            containing older IBM Source Routing Bridges."

    ::= { dot1dSrPortEntry 17 }

dot1dSrPortLanIdMismatches OBJECT-TYPE

    SYNTAX  Counter

    ACCESS  read-only

    STATUS  mandatory

    DESCRIPTION

            "The number of ARE and STE frames that were

            discarded because the last LAN ID in the routing

            information field did not equal the LAN-in ID.

            This error can occur in implementations which do

            only a LAN-in ID and Bridge Number check instead

            of a LAN-in ID, Bridge Number, and LAN-out ID

            check before they forward broadcast frames."

    ::= { dot1dSrPortEntry 18 }

-- scalar object in dot1dSr

dot1dSrBridgeLfMode OBJECT-TYPE

    SYNTAX  INTEGER {

                mode3(1),

                mode6(2)

            }

    ACCESS  read-write

    STATUS  mandatory

    DESCRIPTION

            "Indicates whether the bridge operates using older

            3 bit length negotiation fields or the newer 6 bit

            length field in its RIF."

    ::= { dot1dSr 2 }

-- The Port-Pair Database

-- Implementation of this group is optional.

-- This group is implemented by those bridges that support

-- the direct multiport model of the source route bridging

-- mode as defined in the IEEE 802.5 SRT Addendum to

-- 802.1d.

-- Bridges implementing this group may report 65535 for

-- dot1dSrPortBridgeNumber and dot1dSrPortTargetSegment,

-- indicating that those objects are not applicable.

dot1dPortPairTableSize OBJECT-TYPE

    SYNTAX  Gauge

    ACCESS  read-only

    STATUS  mandatory

    DESCRIPTION

            "The total number of entries in the Bridge Port

            Pair Database."

    ::= { dot1dPortPair 1 }

-- the Bridge Port-Pair table

-- this table represents port pairs within a bridge forming

-- a unique bridge path, as defined in the IEEE 802.5M SRT

-- Addendum.

dot1dPortPairTable OBJECT-TYPE

    SYNTAX  SEQUENCE OF Dot1dPortPairEntry

    ACCESS  not-accessible

    STATUS  mandatory

    DESCRIPTION

            "A table that contains information about every

            port pair database entity associated with this

            source routing bridge."

    ::= { dot1dPortPair 2 }

dot1dPortPairEntry OBJECT-TYPE

    SYNTAX  Dot1dPortPairEntry

    ACCESS  not-accessible

    STATUS  mandatory

    DESCRIPTION

            "A list of information for each port pair entity

            of a bridge."

    INDEX   { dot1dPortPairLowPort, dot1dPortPairHighPort }

    ::= { dot1dPortPairTable 1 }

Dot1dPortPairEntry ::=

    SEQUENCE {

        dot1dPortPairLowPort

            INTEGER,

        dot1dPortPairHighPort

            INTEGER,

        dot1dPortPairBridgeNum

            INTEGER,

        dot1dPortPairBridgeState

            INTEGER

    }

dot1dPortPairLowPort OBJECT-TYPE

    SYNTAX  INTEGER (1..65535)

    ACCESS  read-write

    STATUS  mandatory

    DESCRIPTION

            "The port number of the lower numbered port for

            which this entry contains port pair database

            information."

    ::= { dot1dPortPairEntry 1 }

dot1dPortPairHighPort OBJECT-TYPE

    SYNTAX  INTEGER (1..65535)

    ACCESS  read-write

    STATUS  mandatory

    DESCRIPTION

            "The port number of the higher numbered port for

            which this entry contains port pair database

            information."

    ::= { dot1dPortPairEntry 2 }

dot1dPortPairBridgeNum OBJECT-TYPE

    SYNTAX  INTEGER

    ACCESS  read-write

    STATUS  mandatory

    DESCRIPTION

            "A bridge number that uniquely identifies the path

            provided by this source routing bridge between the

            segments connected to dot1dPortPairLowPort and

            dot1dPortPairHighPort.  The purpose of bridge

            number is to disambiguate between multiple paths

            connecting the same two LANs."

    ::= { dot1dPortPairEntry 3 }

dot1dPortPairBridgeState OBJECT-TYPE

    SYNTAX  INTEGER {

                enabled(1),

                disabled(2),

                invalid(3)

            }

    ACCESS  read-write

    STATUS  mandatory

    DESCRIPTION

            "The state of dot1dPortPairBridgeNum.  Writing

            'invalid(3)' to this object removes the

            corresponding entry."

    ::= { dot1dPortPairEntry 4 }

END