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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