SIP-COMMON-MIB DEFINITIONS ::= BEGIN

IMPORTS

    MODULE-IDENTITY,

    OBJECT-TYPE,

    NOTIFICATION-TYPE,

    Counter32,

    Gauge32,

    TimeTicks,

    Unsigned32,

    mib-2

          FROM SNMPv2-SMI             -- RFC 2578

    RowStatus,

    TimeStamp,

    TruthValue

          FROM SNMPv2-TC              -- RFC 2579

    MODULE-COMPLIANCE,

    OBJECT-GROUP,

    NOTIFICATION-GROUP

          FROM SNMPv2-CONF            -- RFC 2580

    SnmpAdminString

          FROM SNMP-FRAMEWORK-MIB     -- RFC 3411

    SipTCTransportProtocol,

    SipTCMethodName,

    SipTCEntityRole,

    SipTCOptionTagHeaders

          FROM SIP-TC-MIB             -- RFC 4780

    applIndex

          FROM NETWORK-SERVICES-MIB   -- RFC 2788

    InetPortNumber

          FROM INET-ADDRESS-MIB;      -- RFC 4001

sipCommonMIB MODULE-IDENTITY

    LAST-UPDATED "200704200000Z"

    ORGANIZATION "IETF Session Initiation Protocol Working Group"

    CONTACT-INFO

             "SIP WG email: sip@ietf.org

              Co-editor  Kevin Lingle

                         Cisco Systems, Inc.

              postal:    7025 Kit Creek Road

                         P.O. Box 14987

                         Research Triangle Park, NC 27709

                         USA

              email:     klingle@cisco.com

              phone:     +1 919 476 2029

              Co-editor  Joon Maeng

              email:     jmaeng@austin.rr.com

              Co-editor  Jean-Francois Mule

                         CableLabs

              postal:    858 Coal Creek Circle

                         Louisville, CO 80027

                         USA

              email:     jf.mule@cablelabs.com

              phone:     +1 303 661 9100

              Co-editor  Dave Walker

              email:     drwalker@rogers.com"

    DESCRIPTION

       "Session Initiation Protocol (SIP) Common MIB module.  This

        module defines objects that may be common to all SIP entities.

        SIP is an application-layer signaling protocol for creating,

        modifying and terminating multimedia sessions with one or more

        participants.  These sessions include Internet multimedia

        conferences and Internet telephone calls.  SIP is defined in

        RFC 3261 (June 2002).

        This MIB is defined for managing objects that are common to

        SIP User Agents (UAs), Proxy, Redirect, and Registrar servers.

        Objects specific to each of these entities MAY be managed using

        entity specific MIBs defined in other modules.

        Copyright (C) The IETF Trust (2007).  This version of

        this MIB module is part of RFC 4780; see the RFC itself for

        full legal notices."

    REVISION     "200704200000Z"

    DESCRIPTION

        "Initial version of the IETF SIP-COMMON-MIB module.  This

         version published as part of RFC 4780."

     ::= { mib-2 149 }

-- Top-Level Components of this MIB.

sipCommonMIBNotifications OBJECT IDENTIFIER ::= { sipCommonMIB 0 }

sipCommonMIBObjects       OBJECT IDENTIFIER ::= { sipCommonMIB 1 }

sipCommonMIBConformance   OBJECT IDENTIFIER ::= { sipCommonMIB 2 }

--

-- This MIB contains objects that are common to all SIP entities.

--

-- Common basic configuration

sipCommonCfgBase       OBJECT IDENTIFIER ::= { sipCommonMIBObjects 1 }

-- Protocol timer configuration

sipCommonCfgTimer      OBJECT IDENTIFIER ::= { sipCommonMIBObjects 2 }

-- SIP message summary statistics

sipCommonSummaryStats  OBJECT IDENTIFIER ::= { sipCommonMIBObjects 3 }

-- Per method statistics

sipCommonMethodStats   OBJECT IDENTIFIER ::= { sipCommonMIBObjects 4 }

-- Per Status code or status code class statistics

sipCommonStatusCode    OBJECT IDENTIFIER ::= { sipCommonMIBObjects 5 }

-- Transaction statistics

sipCommonStatsTrans    OBJECT IDENTIFIER ::= { sipCommonMIBObjects 6 }

-- Method retry statistics

sipCommonStatsRetry    OBJECT IDENTIFIER ::= { sipCommonMIBObjects 7 }

-- Other statistics

sipCommonOtherStats    OBJECT IDENTIFIER ::= { sipCommonMIBObjects 8 }

-- Accessible-for-notify objects

sipCommonNotifObjects  OBJECT IDENTIFIER ::= { sipCommonMIBObjects 9 }

--

-- Common Configuration Objects

--

sipCommonCfgTable OBJECT-TYPE

    SYNTAX      SEQUENCE OF SipCommonCfgEntry

    MAX-ACCESS  not-accessible

    STATUS      current

    DESCRIPTION

       "This table contains the common configuration objects applicable

        to all SIP entities."

    ::= { sipCommonCfgBase 1 }

sipCommonCfgEntry OBJECT-TYPE

    SYNTAX      SipCommonCfgEntry

    MAX-ACCESS  not-accessible

    STATUS      current

    DESCRIPTION

       "A row of common configuration.

        Each row represents objects for a particular SIP entity

        instance present in this system.  applIndex is used to uniquely

        identify these instances of SIP entities and correlate them

        through the common framework of the NETWORK-SERVICES-MIB (RFC

        2788)."

    INDEX { applIndex }

    ::= { sipCommonCfgTable 1 }

SipCommonCfgEntry ::= SEQUENCE {

        sipCommonCfgProtocolVersion      SnmpAdminString,

        sipCommonCfgServiceOperStatus    INTEGER,

        sipCommonCfgServiceStartTime     TimeTicks,

        sipCommonCfgServiceLastChange    TimeTicks,

        sipCommonCfgOrganization         SnmpAdminString,

        sipCommonCfgMaxTransactions      Unsigned32,

        sipCommonCfgServiceNotifEnable   BITS,

        sipCommonCfgEntityType           SipTCEntityRole

    }

sipCommonCfgProtocolVersion OBJECT-TYPE

    SYNTAX      SnmpAdminString

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

       "This object will reflect the version of SIP supported by this

        SIP entity.  It will follow the same format as SIP version

        information contained in the SIP messages generated by this SIP

        entity.  For example, entities supporting SIP version 2 will

        return 'SIP/2.0' as dictated by the standard."

    REFERENCE

       "RFC 3261, Section 7.1"

    ::= { sipCommonCfgEntry 1 }

sipCommonCfgServiceOperStatus OBJECT-TYPE

    SYNTAX      INTEGER {

                  unknown(1),

                  up(2),

                  down(3),

                  congested(4),

                  restarting(5),

                  quiescing(6),

                  testing(7)

                }

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

       "This object contains the current operational state of

        the SIP application.

        unknown    : The operational status cannot be determined

                     for some reason.

        up         : The application is operating normally and is

                     processing (receiving and possibly issuing) SIP

                     requests and responses.

        down       : The application is currently unable to process

                     SIP messages.

        congested  : The application is operational but no additional

                     inbound transactions can be accommodated at the

                     moment.

        restarting : The application is currently unavailable, but it

                     is in the process of restarting and will

                     presumably, soon be able to process SIP messages.

        quiescing  : The application is currently operational

                     but has been administratively put into

                     quiescence mode.  Additional inbound

                     transactions MAY be rejected.

        testing    : The application is currently in test mode

                     and MAY not be able to process SIP messages.

        The operational status values defined for this object are not

        based on any specific information contained in the SIP

        standard."

    ::= { sipCommonCfgEntry 2 }

sipCommonCfgServiceStartTime OBJECT-TYPE

    SYNTAX      TimeTicks

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

       "The value of sysUpTime at the time the SIP entity was last

        started.  If started prior to the last re-initialization of the

        local network management subsystem, then this object contains a

        zero value."

    ::= { sipCommonCfgEntry 3 }

sipCommonCfgServiceLastChange OBJECT-TYPE

    SYNTAX      TimeTicks

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

       "The value of sysUpTime at the time the SIP entity entered its

        current operational state.  If the current state was entered

        prior to the last re-initialization of the local network

        management subsystem, then this object contains a zero value."

    ::= { sipCommonCfgEntry 4 }

sipCommonCfgOrganization OBJECT-TYPE

    SYNTAX      SnmpAdminString

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

       "This object contains the organization name that the SIP entity

        inserts into Organization headers of SIP messages processed by

        this system.  If the string is empty, no Organization header is

        to be generated."

    REFERENCE

       "RFC 3261, Section 20.25"

    ::= { sipCommonCfgEntry 5 }

sipCommonCfgMaxTransactions OBJECT-TYPE

    SYNTAX      Unsigned32 (1..4294967295)

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

       "This object indicates the maximum number of simultaneous

        transactions per second that the SIP entity can manage.  In

        general, the value of this object SHOULD reflect a level of

        transaction processing per second that is considered high

        enough to impact the system's CPU and/or memory resources to

        the point of deteriorating SIP call processing but not high

        enough to cause catastrophic system failure."

    ::= { sipCommonCfgEntry 6 }

sipCommonCfgServiceNotifEnable OBJECT-TYPE

    SYNTAX      BITS {

                  sipCommonServiceColdStart(0),

                  sipCommonServiceWarmStart(1),

                  sipCommonServiceStatusChanged(2)

                }

    MAX-ACCESS  read-write

    STATUS      current

    DESCRIPTION

       "This object specifies which SIP service related notifications

        are enabled.  Each bit represents a specific notification.  If

        a bit has a value 1, the associated notification is enabled and

        will be generated by the SIP entity at the appropriate time.

        Support for these notifications is OPTIONAL: either none or all

        notification values are supported.  If an implementation does

        not support this object, it should return a 'noSuchObject'

        exception to an SNMP GET operation.  If notifications are

        supported, this object's default value SHOULD reflect

        sipCommonServiceColdStart and sipCommonServiceWarmStart enabled

        and sipCommonServiceStatusChanged disabled.

        This object value SHOULD persist across reboots."

    DEFVAL { { sipCommonServiceColdStart,

               sipCommonServiceWarmStart } }

    ::= { sipCommonCfgEntry 7 }

sipCommonCfgEntityType OBJECT-TYPE

    SYNTAX      SipTCEntityRole

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

       "This object identifies the list of SIP entities to which this

        row is related.  It is defined as a bit map.  Each bit

        represents a type of SIP entity.  If a bit has value 1, the

        SIP entity represented by this row plays the role of this

        entity type.  If a bit has value 0, the SIP entity represented

        by this row does not act as this entity type.  Combinations

        of bits can be set when the SIP entity plays multiple SIP

        roles."

    ::= { sipCommonCfgEntry 8 }

--

-- Support for multiple ports

--

sipCommonPortTable OBJECT-TYPE

    SYNTAX      SEQUENCE OF SipCommonPortEntry

    MAX-ACCESS  not-accessible

    STATUS      current

    DESCRIPTION

       "This table contains the list of ports that each SIP entity in

        this system is allowed to use.  These ports can be advertised

        using the Contact header in a REGISTER request or response."

    ::= { sipCommonCfgBase 2 }

sipCommonPortEntry OBJECT-TYPE

    SYNTAX      SipCommonPortEntry

    MAX-ACCESS  not-accessible

    STATUS      current

    DESCRIPTION

       "Specification of a particular port.

        Each row represents those objects for a particular SIP entity

        present in this system.  applIndex is used to uniquely identify

        these instances of SIP entities and correlate them through

        the common framework of the NETWORK-SERVICES-MIB (RFC 2788)."

    INDEX { applIndex, sipCommonPort }

    ::= { sipCommonPortTable 1 }

SipCommonPortEntry ::= SEQUENCE {

        sipCommonPort                 InetPortNumber,

        sipCommonPortTransportRcv     SipTCTransportProtocol

    }

sipCommonPort OBJECT-TYPE

    SYNTAX      InetPortNumber (1..65535)

    MAX-ACCESS  not-accessible

    STATUS      current

    DESCRIPTION

       "This object reflects a particular port that can be used by the

        SIP application."

    ::= { sipCommonPortEntry 1 }

sipCommonPortTransportRcv OBJECT-TYPE

    SYNTAX      SipTCTransportProtocol

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

       "This object will specify the transport protocol the SIP entity

        will use to receive SIP messages.

        This object is a bit map.  Each bit represents a transport

        protocol.  If a bit has value 1, then that transport protocol

        is currently being used.  If a bit has value 0, then that

        transport protocol is currently not being used."

    ::= { sipCommonPortEntry 2 }

--

-- Support for SIP option tags (SIP extensions).

-- SIP extensions MAY be supported or required by SIP entities.

--

sipCommonOptionTagTable OBJECT-TYPE

    SYNTAX      SEQUENCE OF SipCommonOptionTagEntry

    MAX-ACCESS  not-accessible

    STATUS      current

    DESCRIPTION

       "This table contains a list of the SIP option tags (SIP

        extensions) that are either required, supported, or

        unsupported by the SIP entity.  These option tags are

        used in the Require, Proxy-Require, Supported, and

        Unsupported header fields.

        Example: If a user agent client supports, and requires the

        server to support, reliability of provisional responses

        (RFC 3262), this table contains a row with the option tag string

        '100rel' in sipCommonOptionTag and the OCTET STRING value of

        '1010 0000' or '0xA0' in sipCommonOptionTagHeaderField.

        If a server does not support the required feature (indicated in

        a Require header to a UAS, or in a Proxy-Require to a Proxy

        Server), the server returns a 420 Bad Extension listing the

        feature in an Unsupported header.

        Normally, the list of such features supported by an entity is

        static (i.e., will not change over time)."

    REFERENCE

       "RFC 3261, Sections 19.2, 20.32, 20.29, 20.37, and 20.40"

    ::= { sipCommonCfgBase 3 }

sipCommonOptionTagEntry OBJECT-TYPE

    SYNTAX      SipCommonOptionTagEntry

    MAX-ACCESS  not-accessible

    STATUS      current

    DESCRIPTION

       "A particular SIP option tag (extension) supported or

        unsupported by the SIP entity, and which may be supported or

        required by a peer.

        Each row represents those objects for a particular SIP entity

        present in this system.  applIndex is used to uniquely identify

        these instances of SIP entities and correlate them through the

        common framework of the NETWORK-SERVICES-MIB (RFC 2788)."

    INDEX { applIndex, sipCommonOptionTagIndex }

    ::= { sipCommonOptionTagTable 1 }

SipCommonOptionTagEntry ::= SEQUENCE {

        sipCommonOptionTagIndex        Unsigned32,

        sipCommonOptionTag             SnmpAdminString,

        sipCommonOptionTagHeaderField  SipTCOptionTagHeaders

    }

sipCommonOptionTagIndex OBJECT-TYPE

    SYNTAX      Unsigned32 (1..4294967295)

    MAX-ACCESS  not-accessible

    STATUS      current

    DESCRIPTION

       "This object uniquely identifies a conceptual row in the table."

    ::= { sipCommonOptionTagEntry 1 }

sipCommonOptionTag OBJECT-TYPE

    SYNTAX      SnmpAdminString

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

       "This object indicates the SIP option tag.  The option tag names

       are registered with IANA and available at http://www.iana.org."

    REFERENCE "RFC 3261, Section 27.1"

    ::= { sipCommonOptionTagEntry 2 }

sipCommonOptionTagHeaderField OBJECT-TYPE

    SYNTAX      SipTCOptionTagHeaders

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

       "This object indicates whether the SIP option tag is supported

        (Supported header), unsupported (Unsupported header), or

        required (Require or Proxy-Require header) by the SIP entity.

        A SIP option tag may be both supported and required."

    ::= { sipCommonOptionTagEntry 3 }

--

-- Supported SIP Methods

--

sipCommonMethodSupportedTable OBJECT-TYPE

    SYNTAX      SEQUENCE OF SipCommonMethodSupportedEntry

    MAX-ACCESS  not-accessible

    STATUS      current

    DESCRIPTION

       "This table contains a list of methods supported by each SIP

        entity in this system (see the standard set of SIP methods in

        Section 7.1 of RFC 3261).  Any additional methods that may be

        incorporated into the SIP protocol can be represented by this

        table without any requirement to update this MIB module.

        The table is informational in nature and conveys capabilities

        of the managed system to the SNMP Manager.

        From a protocol point of view, the list of methods advertised

        by the SIP entity in the Allow header (Section 20.5 of RFC

        3261) MUST be consistent with the methods reflected in this

        table."

 ::= { sipCommonCfgBase 4 }

sipCommonMethodSupportedEntry OBJECT-TYPE

    SYNTAX      SipCommonMethodSupportedEntry

    MAX-ACCESS  not-accessible

    STATUS      current

    DESCRIPTION

       "A particular method supported by the SIP entity.

        Each row represents those objects for a particular SIP entity

        present in this system.  applIndex is used to uniquely identify

        these instances of SIP entities and correlate them through

        the common framework of the NETWORK-SERVICES-MIB (RFC 2788)."

    INDEX { applIndex, sipCommonMethodSupportedIndex }

    ::= { sipCommonMethodSupportedTable 1 }

SipCommonMethodSupportedEntry ::= SEQUENCE {

        sipCommonMethodSupportedIndex     Unsigned32,

        sipCommonMethodSupportedName      SipTCMethodName

    }

sipCommonMethodSupportedIndex OBJECT-TYPE

    SYNTAX      Unsigned32 (1..4294967295)

    MAX-ACCESS  not-accessible

    STATUS      current

    DESCRIPTION

       "This object uniquely identifies a conceptual row in the table

        and reflects an assigned number used to identify a specific

        SIP method.

        This identifier is suitable for referencing the associated

        method throughout this and other MIBs supported by this managed

        system."

    ::= { sipCommonMethodSupportedEntry 1 }

sipCommonMethodSupportedName OBJECT-TYPE

    SYNTAX      SipTCMethodName

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

       "This object reflects the supported method's name.  The method

        name MUST be all upper case (e.g., 'INVITE')."

 ::= { sipCommonMethodSupportedEntry 2 }

--

-- SIP Timer Configuration

--

sipCommonCfgTimerTable OBJECT-TYPE

    SYNTAX      SEQUENCE OF SipCommonCfgTimerEntry

    MAX-ACCESS  not-accessible

    STATUS      current

    DESCRIPTION

       "This table contains timer configuration objects applicable to

        SIP user agent and SIP stateful Proxy Server entities."

    ::= { sipCommonCfgTimer 1 }

sipCommonCfgTimerEntry OBJECT-TYPE

    SYNTAX      SipCommonCfgTimerEntry

    MAX-ACCESS  not-accessible

    STATUS      current

    DESCRIPTION

       "A row of timer configuration.

        Each row represents those objects for a particular SIP entity

        present in this system.  applIndex is used to uniquely identify

        these instances of SIP entities and correlate them through

        the common framework of the NETWORK-SERVICES-MIB (RFC 2788).

        The objects in this table entry SHOULD be non-volatile and

        their value SHOULD be kept at reboot."

    INDEX { applIndex }

    ::= { sipCommonCfgTimerTable 1 }

SipCommonCfgTimerEntry ::= SEQUENCE {

        sipCommonCfgTimerA               Unsigned32,

        sipCommonCfgTimerB               Unsigned32,

        sipCommonCfgTimerC               Unsigned32,

        sipCommonCfgTimerD               Unsigned32,

        sipCommonCfgTimerE               Unsigned32,

        sipCommonCfgTimerF               Unsigned32,

        sipCommonCfgTimerG               Unsigned32,

        sipCommonCfgTimerH               Unsigned32,

        sipCommonCfgTimerI               Unsigned32,

        sipCommonCfgTimerJ               Unsigned32,

        sipCommonCfgTimerK               Unsigned32,

        sipCommonCfgTimerT1              Unsigned32,

        sipCommonCfgTimerT2              Unsigned32,

        sipCommonCfgTimerT4              Unsigned32

    }

sipCommonCfgTimerA OBJECT-TYPE

    SYNTAX      Unsigned32 (100..1000)

    UNITS      "milliseconds"

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

       "This object reflects the initial value for the retransmit timer

        for the INVITE method.  The retransmit timer doubles after each

        retransmission, ensuring an exponential backoff in network

        traffic.  This object represents the initial time a SIP entity

        will wait to receive a provisional response to an INVITE before

        resending the INVITE request."

    REFERENCE

       "RFC 3261, Section 17.1.1.2"

    DEFVAL { 500 }

    ::= { sipCommonCfgTimerEntry 1 }

sipCommonCfgTimerB OBJECT-TYPE

    SYNTAX      Unsigned32 (32000..300000)

    UNITS      "milliseconds"

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

       "This object reflects the maximum time a SIP entity will wait to

        receive a final response to an INVITE.  The timer is started

        upon transmission of the initial INVITE request."

    REFERENCE

       "RFC 3261, Section 17.1.1.2"

    DEFVAL { 32000 }

::= { sipCommonCfgTimerEntry 2 }

sipCommonCfgTimerC OBJECT-TYPE

    SYNTAX      Unsigned32 (180000..300000)

    UNITS      "milliseconds"

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

       "This object reflects the maximum time a SIP Proxy Server will

        wait to receive a provisional response to an INVITE.  The Timer

        C MUST be set for each client transaction when an INVITE

        request is proxied."

    REFERENCE

       "RFC 3261, Section 16.6"

    DEFVAL { 180000 }

    ::= { sipCommonCfgTimerEntry 3 }

sipCommonCfgTimerD OBJECT-TYPE

    SYNTAX      Unsigned32 (0..300000)

    UNITS      "milliseconds"

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

       "This object reflects the amount of time that the server

        transaction can remain in the 'Completed' state when unreliable

        transports are used.  The default value MUST be equal to or

        greater than 32000 for UDP transport, and its value MUST be 0

        for TCP/SCTP transport."

    REFERENCE

       "RFC 3261, Section 17.1.1.2"

    DEFVAL { 32000 }

    ::= { sipCommonCfgTimerEntry 4 }

sipCommonCfgTimerE OBJECT-TYPE

    SYNTAX      Unsigned32 (100..1000)

    UNITS      "milliseconds"

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

       "This object reflects the initial value for the retransmit timer

        for a non-INVITE method while in 'Trying' state.  The

        retransmit timer doubles after each retransmission until it

        reaches T2 to ensure an exponential backoff in network traffic.

        This object represents the initial time a SIP entity will wait

        to receive a provisional response to the request before

        resending the non-INVITE request."

    REFERENCE

       "RFC 3261, Section 17.1.2.2"

    DEFVAL { 500 }

    ::= { sipCommonCfgTimerEntry 5 }

sipCommonCfgTimerF  OBJECT-TYPE

    SYNTAX      Unsigned32 (32000..300000)

    UNITS      "milliseconds"

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

       "This object reflects the maximum time a SIP entity will wait to

        receive a final response to a non-INVITE request.  The timer is

        started upon transmission of the initial request."

    REFERENCE

       "RFC 3261, Section 17.1.2.2"

    DEFVAL { 32000 }

    ::= { sipCommonCfgTimerEntry 6 }

sipCommonCfgTimerG  OBJECT-TYPE

    SYNTAX      Unsigned32 (0..1000)

    UNITS      "milliseconds"

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

       "This object reflects the initial value for the retransmit timer

        for final responses to INVITE requests.  If timer G fires, the

        response is passed to the transport layer again for

        retransmission, and timer G is set to fire in MIN(2*T1, T2)

        seconds.  From then on, when timer G fires, the response is

        passed to the transport again for transmission, and timer G is

        reset with a value that doubles, unless that value exceeds T2,

        in which case, it is reset with the value of T2.  The default

        value MUST be T1 for UDP transport, and its value MUST be 0 for

        reliable transport like TCP/SCTP."

    REFERENCE

       "RFC 3261, Section 17.2.1"

    DEFVAL { 500 }

    ::= { sipCommonCfgTimerEntry 7 }

sipCommonCfgTimerH  OBJECT-TYPE

    SYNTAX      Unsigned32 (32000..300000)

    UNITS      "milliseconds"

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

       "This object reflects the maximum time a server will wait to

        receive an ACK before it abandons retransmitting the response.

        The timer is started upon entering the 'Completed' state."

    REFERENCE

       "RFC 3261, Section 17.2.1"

    DEFVAL { 32000 }

    ::= { sipCommonCfgTimerEntry 8 }

sipCommonCfgTimerI  OBJECT-TYPE

    SYNTAX      Unsigned32 (0..10000)

    UNITS      "milliseconds"

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

       "This object reflects the maximum time a SIP entity will wait to

        receive additional ACK message retransmissions.

        The timer is started upon entering the 'Confirmed' state.  The

        default value MUST be T4 for UDP transport and its value MUST

        be 0 for reliable transport like TCP/SCTP."

    REFERENCE

       "RFC 3261, Section 17.2.1"

    DEFVAL { 5000 }

    ::= { sipCommonCfgTimerEntry 9 }

sipCommonCfgTimerJ  OBJECT-TYPE

    SYNTAX      Unsigned32 (32000..300000)

    UNITS      "milliseconds"

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

       "This object reflects the maximum time a SIP server will wait to

        receive retransmissions of non-INVITE requests.  The timer is

        started upon entering the 'Completed' state for non-INVITE

        transactions.  When timer J fires, the server MUST transition to

        the 'Terminated' state."

    REFERENCE

       "RFC 3261, Section 17.2.2"

    DEFVAL { 32000 }

    ::= { sipCommonCfgTimerEntry 10 }

sipCommonCfgTimerK  OBJECT-TYPE

    SYNTAX      Unsigned32 (0..10000)

    UNITS      "milliseconds"

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

       "This object reflects the maximum time a SIP client will wait to

        receive retransmissions of responses to non-INVITE requests.

        The timer is started upon entering the 'Completed' state for

        non-INVITE transactions.  When timer K fires, the server MUST

        transition to the 'Terminated' state.  The default value MUST

        be T4 for UDP transport, and its value MUST be 0 for reliable

        transport like TCP/SCTP."

    REFERENCE

       "RFC 3261, Section 17.1.2.2"

    DEFVAL { 5000 }

    ::= { sipCommonCfgTimerEntry 11 }

sipCommonCfgTimerT1  OBJECT-TYPE

    SYNTAX      Unsigned32 (200..10000)

    UNITS      "milliseconds"

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

       "This object reflects the T1 timer for a SIP entity.  T1 is an

        estimate of the round-trip time (RTT) between the client and

        server transactions."

    REFERENCE

       "RFC 3261, Section 17"

    DEFVAL { 500 }

    ::= { sipCommonCfgTimerEntry 12 }

sipCommonCfgTimerT2  OBJECT-TYPE

    SYNTAX      Unsigned32 (200..10000)

    UNITS      "milliseconds"

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

       "This object reflects the T2 timer for a SIP entity.  T2 is the

        maximum retransmit interval for non-INVITE requests and INVITE

        responses.  It's used in various parts of the protocol to reset

        other Timer* objects to this value."

    REFERENCE

       "RFC 3261, Section 17"

    DEFVAL { 4000 }

    ::= { sipCommonCfgTimerEntry 13 }

sipCommonCfgTimerT4  OBJECT-TYPE

    SYNTAX      Unsigned32 (200..10000)

    UNITS      "milliseconds"

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION

       "This object reflects the T4 timer for a SIP entity.  T4 is the

        maximum duration a message will remain in the network.  It

        represents the amount of time the network will take to clear

        messages between client and server transactions.  It's used in

        various parts of the protocol to reset other Timer* objects to

        this value."

    REFERENCE

       "RFC 3261, Section 17"

    DEFVAL { 5000 }

    ::= { sipCommonCfgTimerEntry 14 }

--

-- Common Statistics Objects

--

--

-- Summary Statistics

--

sipCommonSummaryStatsTable OBJECT-TYPE

    SYNTAX      SEQUENCE OF SipCommonSummaryStatsEntry

    MAX-ACCESS  not-accessible

    STATUS      current

    DESCRIPTION

       "This table contains the summary statistics objects applicable

        to all SIP entities.  Each row represents those objects for a

        particular SIP entity present in this system."

    ::= { sipCommonSummaryStats 1 }

sipCommonSummaryStatsEntry OBJECT-TYPE

    SYNTAX      SipCommonSummaryStatsEntry

    MAX-ACCESS  not-accessible

    STATUS      current

    DESCRIPTION

       "A row of summary statistics.

        Each row represents those objects for a particular SIP entity

        present in this system.  applIndex is used to uniquely identify

        these instances of SIP entities and correlate them through

        the common framework of the NETWORK-SERVICES-MIB (RFC 2788)."

    INDEX { applIndex }

    ::= { sipCommonSummaryStatsTable 1 }

SipCommonSummaryStatsEntry ::= SEQUENCE {

        sipCommonSummaryInRequests         Counter32,

        sipCommonSummaryOutRequests        Counter32,

        sipCommonSummaryInResponses        Counter32,

        sipCommonSummaryOutResponses       Counter32,

        sipCommonSummaryTotalTransactions  Counter32,

        sipCommonSummaryDisconTime         TimeStamp

    }

sipCommonSummaryInRequests OBJECT-TYPE

    SYNTAX      Counter32

    MAX-ACCESS  read-only

    STATUS      current

    DESCRIPTION