ROHC-RTP-MIB DEFINITIONS ::= BEGIN

IMPORTS

    MODULE-IDENTITY, OBJECT-TYPE,

    Unsigned32, Counter32, mib-2

        FROM SNMPv2-SMI                               -- [RFC2578]

    TruthValue

        FROM SNMPv2-TC                                -- [RFC2579]

    MODULE-COMPLIANCE, OBJECT-GROUP

        FROM SNMPv2-CONF                              -- [RFC2580]

    rohcChannelID, rohcContextCID

        FROM ROHC-MIB;                                -- [RFC3816]

rohcRtpMIB MODULE-IDENTITY

    LAST-UPDATED "200406030000Z"  -- June 3, 2004

    ORGANIZATION "IETF Robust Header Compression Working Group"

    CONTACT-INFO

       "WG charter:

          http://www.ietf.org/html.charters/rohc-charter.html

        Mailing Lists:

          General Discussion: rohc@ietf.org

          To Subscribe: rohc-request@ietf.org

          In Body: subscribe your_email_address

        Editor:

          Juergen Quittek

          NEC Europe Ltd.

          Network Laboratories

          Kurfuersten-Anlage 36

          69221 Heidelberg

          Germany

          Tel: +49 6221 90511-15

          EMail: quittek@netlab.nec.de"

    DESCRIPTION

        "This MIB module defines a set of objects for monitoring

         and configuring RObust Header Compression (ROHC).

         The objects are specific to ROHC RTP (profile 0x0001),

         ROHC UDP (profile 0x0002), and ROHC ESP (profile 0x0003)

         defined in RFC 3095 and for the ROHC LLA profile (profile

         0x0005) defined in RFC 3242.

         Copyright (C) The Internet Society (2004). The

         initial version of this MIB module was published

         in RFC 3816. For full legal notices see the RFC

         itself or see:

         http://www.ietf.org/copyrights/ianamib.html"

    REVISION    "200406030000Z"  -- June 3, 2004

    DESCRIPTION "Initial version, published as RFC 3816."

    ::= { mib-2 114 }

--

-- The groups defined within this MIB module:

--

rohcRtpObjects       OBJECT IDENTIFIER ::= { rohcRtpMIB 1 }

rohcRtpConformance   OBJECT IDENTIFIER ::= { rohcRtpMIB 2 }

--

-- Context Table

--

-- The rohcRtpContextTable lists all contexts per interface

-- and instance.  It extends the rohcContextTable.

--

rohcRtpContextTable OBJECT-TYPE

    SYNTAX      SEQUENCE OF RohcRtpContextEntry

    MAX-ACCESS  not-accessible

    STATUS      current

    DESCRIPTION

        "This table lists and describes RTP profile specific

         properties of compressor contexts and decompressor

         contexts.  It extends the rohcContextTable of the

         ROHC-MIB module."

    ::= { rohcRtpObjects 1 }

rohcRtpContextEntry OBJECT-TYPE

    SYNTAX      RohcRtpContextEntry

    MAX-ACCESS  not-accessible

    STATUS      current

    DESCRIPTION

        "An entry describing a particular context."

    INDEX {

        rohcChannelID,

        rohcContextCID

    }

    ::= { rohcRtpContextTable 1 }

RohcRtpContextEntry ::= SEQUENCE {

    rohcRtpContextState             INTEGER,

    rohcRtpContextMode              INTEGER,

    rohcRtpContextAlwaysPad         TruthValue,

    rohcRtpContextLargePktsAllowed  TruthValue,

    rohcRtpContextVerifyPeriod      Unsigned32,

    rohcRtpContextSizesAllowed      Unsigned32,

    rohcRtpContextSizesUsed         Unsigned32,

    rohcRtpContextACKs              Counter32,

    rohcRtpContextNACKs             Counter32,

    rohcRtpContextSNACKs            Counter32,

    rohcRtpContextNHPs              Counter32,

    rohcRtpContextCSPs              Counter32,

    rohcRtpContextCCPs              Counter32,

    rohcRtpContextPktsLostPhysical  Counter32,

    rohcRtpContextPktsLostPreLink   Counter32

}

rohcRtpContextState OBJECT-TYPE

    SYNTAX      INTEGER {

                    initAndRefresh(1),

                    firstOrder(2),

                    secondOrder(3),

                    noContext(4),

                    staticContext(5),

                    fullContext(6)

                }

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

        "State of the context as defined in RFC 3095.  States

         initAndRefresh(1), firstOrder(2), and secondOrder(3)

         are states of compressor contexts, states noContext(4),

         staticContext(5) and fullContext(6) are states of

         decompressor contexts."

    REFERENCE

        "RFC 3095"

    ::= { rohcRtpContextEntry 3 }

rohcRtpContextMode OBJECT-TYPE

    SYNTAX      INTEGER {

                    unidirectional(1),

                    optimistic(2),

                    reliable(3)

                }

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

        "Mode of the context."

    REFERENCE

        "RFC 3095, Section 4.4"

    ::= { rohcRtpContextEntry 4 }

rohcRtpContextAlwaysPad OBJECT-TYPE

    SYNTAX      TruthValue

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

        "Boolean, only applicable to compressor contexts using the

         LLA profile.  If its value is true, the compressor must

         pad every RHP packet with a minimum of one octet ROHC

         padding.

         The value of this object is only valid for LLA profiles,

         i.e., if the corresponding rohcProfile has a value of

         0x0005.  If the corresponding rohcProfile has a value

         other than 0x0005, then this object MUST NOT be

         instantiated."

    REFERENCE

        "RFC 3242, Section 5.1.1"

    DEFVAL { false }

    ::= { rohcRtpContextEntry 5 }

rohcRtpContextLargePktsAllowed OBJECT-TYPE

    SYNTAX      TruthValue

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

        "Boolean, only applicable to compressor contexts using the

         LLA profile.  It specifies how to handle packets that do

         not fit any of the preferred packet sizes specified.  If

         its value is true, the compressor must deliver the larger

         packet as-is and must not use segmentation.  If it is set

         to false, the ROHC segmentation scheme must be used to

         split the packet into two or more segments, and each

         segment must further be padded to fit one of the preferred

         packet sizes.

         The value of this object is only valid for LLA profiles,

         i.e., if the corresponding rohcProfile has a value of

         0x0005.  If the corresponding rohcProfile has a value

         other than 0x0005, then this object MUST NOT be

         instantiated."

    REFERENCE

        "RFC 3242, Section 5.1.1"

    DEFVAL { true }

    ::= { rohcRtpContextEntry 6 }

rohcRtpContextVerifyPeriod OBJECT-TYPE

    SYNTAX      Unsigned32

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

        "This object is only applicable to compressor contexts

         using the LLA profile.  It specifies the minimum frequency

         with which a packet validating the context must be sent.

         This tells the compressor that a packet containing a CRC

         field must be sent at least once every N packets, where N

         is the value of the object.  A value of 0 indicates that

         periodical verifications are disabled.

         The value of this object is only valid for LLA profiles,

         i.e., if the corresponding rohcProfile has a value of

         0x0005.  If the corresponding rohcProfile has a value

         other than 0x0005, then this object MUST NOT be

         instantiated."

    REFERENCE

        "RFC 3242, Section 5.1.1"

    DEFVAL { 0 }

    ::= { rohcRtpContextEntry 7 }

rohcRtpContextSizesAllowed  OBJECT-TYPE

    SYNTAX      Unsigned32 (1..4294967295)

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

        "The value of this object is only valid for decompressor

         contexts, i.e., if rohcInstanceType of the corresponding

         rohcContextEntry has the value decompressor(2).  For

         compressor contexts where rohcInstanceType has the value

         compressor(1), this object MUST NOT be instantiated.

         This object contains the number of different packet sizes

         that may be used in the context."

    REFERENCE

        "RFC 3095, Section 6.3.1"

    ::= { rohcRtpContextEntry 8 }

rohcRtpContextSizesUsed  OBJECT-TYPE

    SYNTAX      Unsigned32 (1..4294967295)

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

        "The value of this object is only valid for decompressor

         contexts, i.e., if rohcInstanceType of the corresponding

         rohcContextEntry has the value decompressor(2).  For

         compressor contexts where rohcInstanceType has the value

         compressor(1), this object MUST NOT be instantiated.

         This object contains the number of different packet sizes

         that are used in the context."

    REFERENCE

        "RFC 3095, Section 6.3.1"

    ::= { rohcRtpContextEntry 9 }

rohcRtpContextACKs OBJECT-TYPE

    SYNTAX      Counter32

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

        "The number of all positive feedbacks (ACK) sent or

         received in this context, respectively.

         Discontinuities in the value of this counter can

         occur at re-initialization of the management

         system, and at other times as indicated by the

         value of ifCounterDiscontinuityTime.  For checking

         ifCounterDiscontinuityTime, the interface index is

         required.  It can be determined by reading the

         rohcChannelTable of the ROHC-MIB."

    REFERENCE

        "RFC 3095, Section 5.2.1."

    ::= { rohcRtpContextEntry 10 }

rohcRtpContextNACKs OBJECT-TYPE

    SYNTAX      Counter32

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

        "The number of all dynamic negative feedbacks (ACK) sent

         or received in this context, respectively.

         Discontinuities in the value of this counter can

         occur at re-initialization of the management

         system, and at other times as indicated by the

         value of ifCounterDiscontinuityTime.  For checking

         ifCounterDiscontinuityTime, the interface index is

         required.  It can be determined by reading the

         rohcChannelTable of the ROHC-MIB."

    REFERENCE

        "RFC 3095, Section 5.2.1."

    ::= { rohcRtpContextEntry 11 }

rohcRtpContextSNACKs OBJECT-TYPE

    SYNTAX      Counter32

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

        "The number of all static negative feedbacks (ACK) sent

         or received in this context, respectively.

         Discontinuities in the value of this counter can

         occur at re-initialization of the management

         system, and at other times as indicated by the

         value of ifCounterDiscontinuityTime.  For checking

         ifCounterDiscontinuityTime, the interface index is

         required.  It can be determined by reading the

         rohcChannelTable of the ROHC-MIB."

    REFERENCE

        "RFC 3095, Section 5.2.1."

    ::= { rohcRtpContextEntry 12 }

rohcRtpContextNHPs OBJECT-TYPE

    SYNTAX      Counter32

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

        "This object is only applicable to contexts using the

         LLA profile.  It contains the number of all no-header

         packets (NHP) sent or received in this context,

         respectively.

         Discontinuities in the value of this counter can

         occur at re-initialization of the management

         system, and at other times as indicated by the

         value of ifCounterDiscontinuityTime.  For checking

         ifCounterDiscontinuityTime, the interface index is

         required.  It can be determined by reading the

         rohcChannelTable of the ROHC-MIB.

         The value of this object is only valid for LLA profiles,

         i.e., if the corresponding rohcProfile has a value of

         0x0005.  If the corresponding rohcProfile has a value

         other than 0x0005, then this object MUST NOT be

         instantiated."

    REFERENCE

        "RFC 3242, Section 4.1.1."

    ::= { rohcRtpContextEntry 13 }

rohcRtpContextCSPs OBJECT-TYPE

    SYNTAX      Counter32

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

        "This object is only applicable to contexts using the

         LLA profile.  It contains the number of all context

         synchronization packets (CSP) sent or received in this

         context, respectively.

         Discontinuities in the value of this counter can

         occur at re-initialization of the management

         system, and at other times as indicated by the

         value of ifCounterDiscontinuityTime.  For checking

         ifCounterDiscontinuityTime, the interface index is

         required.  It can be determined by reading the

         rohcChannelTable of the ROHC-MIB.

         The value of this object is only valid for LLA profiles,

         i.e., if the corresponding rohcProfile has a value of

         0x0005.  If the corresponding rohcProfile has a value

         other than 0x0005, then this object MUST NOT be

         instantiated."

    REFERENCE

        "RFC 3242, Section 4.1.2."

    ::= { rohcRtpContextEntry 14 }

rohcRtpContextCCPs OBJECT-TYPE

    SYNTAX      Counter32

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

        "This object is only applicable to contexts using the

         LLA profile.  It contains the number of all context check

         packets (CCP) sent or received in this context,

         respectively.

         Discontinuities in the value of this counter can

         occur at re-initialization of the management

         system, and at other times as indicated by the

         value of ifCounterDiscontinuityTime.  For checking

         ifCounterDiscontinuityTime, the interface index is

         required.  It can be determined by reading the

         rohcChannelTable of the ROHC-MIB.

         The value of this object is only valid for LLA profiles,

         i.e., if the corresponding rohcProfile has a value of

         0x0005.  If the corresponding rohcProfile has a value

         other than 0x0005, then this object MUST NOT be

         instantiated."

    REFERENCE

        "RFC 3242, Section 4.1.3."

    ::= { rohcRtpContextEntry 15 }

rohcRtpContextPktsLostPhysical OBJECT-TYPE

    SYNTAX      Counter32

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

        "This object is only applicable to decompressor contexts

         using the LLA profile.  It contains the number of physical

         packet losses on the link between compressor and

         decompressor, that have been indicated to the decompressor.

         Discontinuities in the value of this counter can

         occur at re-initialization of the management

         system, and at other times as indicated by the

         value of ifCounterDiscontinuityTime.  For checking

         ifCounterDiscontinuityTime, the interface index is

         required.  It can be determined by reading the

         rohcChannelTable of the ROHC-MIB.

         The value of this object is only valid for LLA profiles,

         i.e., if the corresponding rohcProfile has a value of

         0x0005.  If the corresponding rohcProfile has a value

         other than 0x0005, then this object MUST NOT be

         instantiated."

    REFERENCE

        "RFC 3242, Section 5.1.2."

    ::= { rohcRtpContextEntry 16 }

rohcRtpContextPktsLostPreLink OBJECT-TYPE

    SYNTAX      Counter32

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

        "This object is only applicable to decompressor contexts

         using the LLA profile.  It contains the number of pre-link

         packet losses on the link between compressor and

         decompressor, that have been indicated to the decompressor.

         Discontinuities in the value of this counter can

         occur at re-initialization of the management

         system, and at other times as indicated by the

         value of ifCounterDiscontinuityTime.  For checking

         ifCounterDiscontinuityTime, the interface index is

         required.  It can be determined by reading the

         rohcChannelTable of the ROHC-MIB.

         The value of this object is only valid for LLA profiles,

         i.e., if the corresponding rohcProfile has a value of

         0x0005.  If the corresponding rohcProfile has a value

         other than 0x0005, then this object MUST NOT be

         instantiated."

    REFERENCE

        "RFC 3242, Section 5.1.2."

    ::= { rohcRtpContextEntry 17 }

--

-- Packet Sizes Table

--

-- The rohcPacketSizeTable lists allowed, preferred, and used

-- packet sizes per compressor context.

rohcRtpPacketSizeTable OBJECT-TYPE

    SYNTAX      SEQUENCE OF RohcRtpPacketSizeEntry

    MAX-ACCESS  not-accessible

    STATUS      current

    DESCRIPTION

        "This table lists all allowed, preferred, and used packet

         sizes per compressor context and channel.

         Note, that the sizes table represents implementation

         parameters that are suggested by RFC 3095 and/or RFC 3242,

         but that are not mandatory."

    ::= { rohcRtpObjects 2 }

rohcRtpPacketSizeEntry OBJECT-TYPE

    SYNTAX      RohcRtpPacketSizeEntry

    MAX-ACCESS  not-accessible

    STATUS      current

    DESCRIPTION

        "An entry of a particular packet size."

    INDEX {

        rohcChannelID,

        rohcContextCID,

        rohcRtpPacketSize

    }

    ::= { rohcRtpPacketSizeTable 1 }

RohcRtpPacketSizeEntry ::= SEQUENCE {

    rohcRtpPacketSize                Unsigned32,

    rohcRtpPacketSizePreferred       TruthValue,

    rohcRtpPacketSizeUsed            TruthValue,

    rohcRtpPacketSizeRestrictedType  INTEGER

}

rohcRtpPacketSize OBJECT-TYPE

    SYNTAX      Unsigned32 (1..4294967295)

    MAX-ACCESS  not-accessible

    STATUS      current

    DESCRIPTION

        "A packet size used as index."

    ::= { rohcRtpPacketSizeEntry 3 }

rohcRtpPacketSizePreferred OBJECT-TYPE

    SYNTAX      TruthValue

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

        "This object is only applicable to compressor contexts

         using the LLA profile.  When retrieved, it will have

         the value true(1) if the packet size is preferred.

         Otherwise, its value will be false(2).

         The value of this object is only valid for LLA profiles,

         i.e., if the corresponding rohcProfile has a value of

         0x0005.  If the corresponding rohcProfile has a value

         other than 0x0005, then this object MUST NOT be

         instantiated."

    REFERENCE

         "RFC 3242, Section 5.1.1"

    ::= { rohcRtpPacketSizeEntry 4 }

rohcRtpPacketSizeUsed OBJECT-TYPE

    SYNTAX      TruthValue

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

        "This object is only applicable to compressor contexts

         using the UDP, RTP, or ESP profile.  When retrieved,

         it will have the value true(1) if the packet size is

         used.  Otherwise, its value will be false(2).

         The value of this object is only valid for UDP, RTP,

         and ESP profiles, i.e., if the corresponding rohcProfile

         has a value of either 0x0001, 0x0002 or 0x0003.  If

         the corresponding rohcProfile has a value other than

         0x0001, 0x0002 or 0x0003, then this object MUST NOT be

         instantiated."

    REFERENCE

         "RFC 3095, Section 6.3.1"

    ::= { rohcRtpPacketSizeEntry 5 }

rohcRtpPacketSizeRestrictedType OBJECT-TYPE

    SYNTAX      INTEGER {

                    nhpOnly(1),

                    rhpOnly(2),

                    noRestrictions(3)

                }

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

        "This object is only applicable to preferred packet

         sizes of compressor contexts using the LLA profile.

         When retrieved, it will indicate whether the packet

         size is preferred for NHP only, for RHP only, or

         for both of them.

         The value of this object is only valid for LLA profiles,

         i.e., if the corresponding rohcProfile has a value of

         0x0005.  If the corresponding rohcProfile has a value

         other than 0x0005, then this object MUST NOT be

         instantiated."

    REFERENCE

         "RFC 3242, Section 5.1.1"

    ::= { rohcRtpPacketSizeEntry 6 }

--

-- conformance information

--

rohcRtpCompliances OBJECT IDENTIFIER ::= { rohcRtpConformance 1 }

rohcRtpGroups      OBJECT IDENTIFIER ::= { rohcRtpConformance 2 }

--

-- compliance statements

--

rohcRtpCompliance MODULE-COMPLIANCE

    STATUS      current

    DESCRIPTION

        "The compliance statement for SNMP entities that implement

         the ROHC-RTP-MIB.

         Note that compliance with this compliance

         statement requires compliance with the

         rohcCompliance MODULE-COMPLIANCE statement of the

         ROHC-MIB and with the ifCompliance3 MODULE-COMPLIANCE

         statement of the IF-MIB (RFC2863)."

    MODULE      -- this module

    MANDATORY-GROUPS {

            rohcRtpContextGroup

    }

    GROUP   rohcRtpPacketSizesGroup

    DESCRIPTION

       "A compliant implementation does not have to implement

        the rohcRtpPacketSizesGroup."

    GROUP   rohcRtpStatisticsGroup

    DESCRIPTION

       "A compliant implementation does not have to implement

        the rohcRtpStatisticsGroup."

    ::= { rohcRtpCompliances 1 }

rohcRtpContextGroup OBJECT-GROUP

    OBJECTS {

        rohcRtpContextState,

        rohcRtpContextMode,

        rohcRtpContextAlwaysPad,

        rohcRtpContextLargePktsAllowed,

        rohcRtpContextVerifyPeriod

    }

    STATUS      current

    DESCRIPTION

        "A collection of objects providing information about

         ROHC RTP compressors and decompressors."

    ::= { rohcRtpGroups 1 }

rohcRtpPacketSizesGroup OBJECT-GROUP

    OBJECTS {

        rohcRtpContextSizesAllowed,

        rohcRtpContextSizesUsed,

        rohcRtpPacketSizePreferred,

        rohcRtpPacketSizeUsed,

        rohcRtpPacketSizeRestrictedType

    }

    STATUS      current

    DESCRIPTION

        "A collection of objects providing information about

         allowed and used packet sizes at a ROHC RTP compressor."

    ::= { rohcRtpGroups 2 }

rohcRtpStatisticsGroup OBJECT-GROUP

    OBJECTS {

        rohcRtpContextACKs,

        rohcRtpContextNACKs,

        rohcRtpContextSNACKs,

        rohcRtpContextNHPs,

        rohcRtpContextCSPs,

        rohcRtpContextCCPs,

        rohcRtpContextPktsLostPhysical,

        rohcRtpContextPktsLostPreLink

    }

    STATUS      current

    DESCRIPTION

        "A collection of objects providing ROHC compressor and

         decompressor statistics."

    ::= { rohcRtpGroups 3 }

END