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+   IPV6-MLD-MIB DEFINITIONS ::= BEGIN
+
+   IMPORTS
+       MODULE-IDENTITY, OBJECT-TYPE, Counter32, Gauge32,
+       Unsigned32, TimeTicks, mib-2     FROM SNMPv2-SMI
+       RowStatus, TruthValue            FROM SNMPv2-TC
+       InetAddressIPv6             FROM INET-ADDRESS-MIB
+       InterfaceIndex, InterfaceIndexOrZero
+                                            FROM IF-MIB
+       MODULE-COMPLIANCE, OBJECT-GROUP  FROM SNMPv2-CONF;
+
+
+   mldMIB MODULE-IDENTITY
+       LAST-UPDATED "200101250000Z" -- 25 Jan 2001
+       ORGANIZATION "IETF IPNGWG Working Group."
+       CONTACT-INFO
+               " Brian Haberman
+                 Nortel Networks
+                 4309 Emperor Blvd.
+                 Durham, NC  27703
+                 USA
+
+                 Phone: +1 919 992 4439
+                 e-mail: haberman@nortelnetworks.com"
+       DESCRIPTION
+               "The MIB module for MLD Management."
+       REVISION "200101250000Z" -- 25 Jan 2001
+       DESCRIPTION
+               "Initial version, published as RFC 3019."
+       ::= { mib-2 91 }
+
+
+   mldMIBObjects     OBJECT IDENTIFIER ::= { mldMIB 1 }
+   --
+   --  The MLD Interface Table
+   --
+
+   mldInterfaceTable OBJECT-TYPE
+       SYNTAX     SEQUENCE OF MldInterfaceEntry
+       MAX-ACCESS not-accessible
+       STATUS     current
+       DESCRIPTION
+                "The (conceptual) table listing the interfaces on which
+                MLD is enabled."
+       ::= { mldMIBObjects 1 }
+
+   mldInterfaceEntry OBJECT-TYPE
+       SYNTAX     MldInterfaceEntry
+       MAX-ACCESS not-accessible
+       STATUS     current
+       DESCRIPTION
+               "An entry (conceptual row) representing an interface on
+               which MLD is enabled."
+       INDEX      { mldInterfaceIfIndex }
+       ::= { mldInterfaceTable 1 }
+
+   MldInterfaceEntry ::= SEQUENCE {
+       mldInterfaceIfIndex               InterfaceIndex,
+       mldInterfaceQueryInterval         Unsigned32,
+       mldInterfaceStatus                RowStatus,
+       mldInterfaceVersion               Unsigned32,
+       mldInterfaceQuerier               InetAddressIPv6,
+       mldInterfaceQueryMaxRespDelay     Unsigned32,
+       mldInterfaceJoins                 Counter32,
+       mldInterfaceGroups                Gauge32,
+       mldInterfaceRobustness            Unsigned32,
+       mldInterfaceLastListenQueryIntvl  Unsigned32,
+       mldInterfaceProxyIfIndex          InterfaceIndexOrZero,
+       mldInterfaceQuerierUpTime         TimeTicks,
+       mldInterfaceQuerierExpiryTime     TimeTicks
+   }
+
+   mldInterfaceIfIndex OBJECT-TYPE
+
+       SYNTAX     InterfaceIndex
+       MAX-ACCESS not-accessible
+       STATUS     current
+       DESCRIPTION
+               "The internetwork-layer interface value of the interface
+               for which MLD is enabled."
+       ::= { mldInterfaceEntry 1 }
+
+   mldInterfaceQueryInterval OBJECT-TYPE
+       SYNTAX     Unsigned32
+       UNITS      "seconds"
+       MAX-ACCESS read-create
+       STATUS     current
+       DESCRIPTION
+               "The frequency at which MLD Host-Query packets are
+               transmitted on this interface."
+       DEFVAL     { 125 }
+       ::= { mldInterfaceEntry 2 }
+
+   mldInterfaceStatus OBJECT-TYPE
+       SYNTAX     RowStatus
+       MAX-ACCESS read-create
+       STATUS     current
+       DESCRIPTION
+                "The activation of a row enables MLD on the interface.
+                The destruction of a row disables MLD on the interface."
+       ::= { mldInterfaceEntry 3 }
+
+   mldInterfaceVersion OBJECT-TYPE
+       SYNTAX     Unsigned32
+       MAX-ACCESS read-create
+       STATUS     current
+       DESCRIPTION
+                "The version of MLD which is running on this interface.
+                This object is a place holder to allow for new versions
+                of MLD to be introduced.  Version 1 of MLD is defined
+                in RFC 2710."
+       DEFVAL     { 1 }
+       ::= { mldInterfaceEntry 4 }
+
+   mldInterfaceQuerier OBJECT-TYPE
+       SYNTAX     InetAddressIPv6 (SIZE (16))
+       MAX-ACCESS read-only
+       STATUS     current
+       DESCRIPTION
+                "The address of the MLD Querier on the IPv6 subnet to
+                which this interface is attached."
+       ::= { mldInterfaceEntry 5 }
+
+   mldInterfaceQueryMaxRespDelay OBJECT-TYPE
+       SYNTAX     Unsigned32
+       UNITS      "seconds"
+       MAX-ACCESS read-create
+       STATUS     current
+       DESCRIPTION
+               "The maximum query response time advertised in MLD
+               queries on this interface."
+       DEFVAL     { 10 }
+       ::= { mldInterfaceEntry 6 }
+
+   mldInterfaceJoins OBJECT-TYPE
+       SYNTAX     Counter32
+       MAX-ACCESS read-only
+       STATUS     current
+       DESCRIPTION
+               "The number of times a group membership has been added on
+               this interface; that is, the number of times an entry for
+               this interface has been added to the Cache Table.  This
+               object gives an indication of the amount of MLD activity
+               over time."
+       ::= { mldInterfaceEntry 7 }
+
+   mldInterfaceGroups OBJECT-TYPE
+       SYNTAX     Gauge32
+       MAX-ACCESS read-only
+       STATUS     current
+       DESCRIPTION
+               "The current number of entries for this interface in the
+               Cache Table."
+       ::= { mldInterfaceEntry 8 }
+
+   mldInterfaceRobustness OBJECT-TYPE
+       SYNTAX     Unsigned32
+       MAX-ACCESS read-create
+       STATUS     current
+       DESCRIPTION
+               "The Robustness Variable allows tuning for the expected
+               packet loss on a subnet.  If a subnet is expected to be
+               lossy, the Robustness Variable may be increased.  MLD is
+               robust to (Robustness Variable-1) packet losses.  The
+               discussion of the Robustness Variable is in Section 7.1
+               of RFC 2710."
+       DEFVAL     { 2 }
+       ::= { mldInterfaceEntry 9 }
+
+   mldInterfaceLastListenQueryIntvl OBJECT-TYPE
+       SYNTAX     Unsigned32
+       UNITS      "seconds"
+       MAX-ACCESS read-create
+       STATUS     current
+       DESCRIPTION
+                "The Last Member Query Interval is the Max Response
+                Delay inserted into Group-Specific Queries sent in
+                response to Leave Group messages, and is also the amount
+                of time between Group-Specific Query messages.  This
+                value may be tuned to modify the leave latency of the
+                network.  A reduced value results in reduced time to
+                detect the loss of the last member of a group."
+       DEFVAL     { 1 }
+
+       ::= { mldInterfaceEntry 10 }
+
+   mldInterfaceProxyIfIndex OBJECT-TYPE
+       SYNTAX     InterfaceIndexOrZero
+       MAX-ACCESS read-create
+       STATUS     current
+       DESCRIPTION
+                "Some devices implement a form of MLD proxying whereby
+                memberships learned on the interface represented by this
+                row, cause MLD Multicast Listener Reports to be sent on
+                the internetwork-layer interface identified by this
+                object.  Such a device would implement mldRouterMIBGroup
+                only on its router interfaces (those interfaces with
+                non-zero mldInterfaceProxyIfIndex).  Typically, the
+                value of this object is 0, indicating that no proxying
+                is being done."
+       DEFVAL     { 0 }
+       ::= { mldInterfaceEntry 11 }
+
+   mldInterfaceQuerierUpTime OBJECT-TYPE
+       SYNTAX     TimeTicks
+       MAX-ACCESS read-only
+       STATUS     current
+       DESCRIPTION
+               "The time since mldInterfaceQuerier was last changed."
+       ::= { mldInterfaceEntry 12 }
+
+   mldInterfaceQuerierExpiryTime OBJECT-TYPE
+       SYNTAX     TimeTicks
+       MAX-ACCESS read-only
+       STATUS     current
+       DESCRIPTION
+               "The time remaining before the Other Querier Present
+               Timer expires.  If the local system is the querier,
+               the value of this object is zero."
+       ::= { mldInterfaceEntry 13 }
+
+
+   --
+   --  The MLD Cache Table
+   --
+
+   mldCacheTable OBJECT-TYPE
+       SYNTAX     SEQUENCE OF MldCacheEntry
+       MAX-ACCESS not-accessible
+       STATUS     current
+       DESCRIPTION
+                "The (conceptual) table listing the IPv6 multicast
+                groups for which there are members on a particular
+                interface."
+       ::= { mldMIBObjects 2 }
+
+   mldCacheEntry OBJECT-TYPE
+       SYNTAX     MldCacheEntry
+       MAX-ACCESS not-accessible
+       STATUS     current
+       DESCRIPTION
+               "An entry (conceptual row) in the mldCacheTable."
+       INDEX      { mldCacheAddress, mldCacheIfIndex }
+       ::= { mldCacheTable 1 }
+
+   MldCacheEntry ::= SEQUENCE {
+       mldCacheAddress         InetAddressIPv6,
+       mldCacheIfIndex            InterfaceIndex,
+       mldCacheSelf               TruthValue,
+       mldCacheLastReporter   InetAddressIPv6,
+       mldCacheUpTime             TimeTicks,
+       mldCacheExpiryTime         TimeTicks,
+       mldCacheStatus             RowStatus
+   }
+
+   mldCacheAddress OBJECT-TYPE
+       SYNTAX     InetAddressIPv6 (SIZE (16))
+       MAX-ACCESS not-accessible
+       STATUS     current
+       DESCRIPTION
+               "The IPv6 multicast group address for which this entry
+               contains information."
+       ::= { mldCacheEntry 1 }
+
+   mldCacheIfIndex OBJECT-TYPE
+       SYNTAX     InterfaceIndex
+       MAX-ACCESS not-accessible
+       STATUS     current
+       DESCRIPTION
+                "The internetwork-layer interface for which this entry
+                contains information for an IPv6 multicast group
+                address."
+       ::= { mldCacheEntry 2 }
+
+   mldCacheSelf OBJECT-TYPE
+       SYNTAX     TruthValue
+       MAX-ACCESS read-create
+       STATUS     current
+       DESCRIPTION
+               "An indication of whether the local system is a member of
+               this group address on this interface."
+       DEFVAL     { true }
+       ::= { mldCacheEntry 3 }
+
+   mldCacheLastReporter OBJECT-TYPE
+       SYNTAX     InetAddressIPv6 (SIZE (16))
+       MAX-ACCESS read-only
+       STATUS     current
+       DESCRIPTION
+                "The IPv6 address of the source of the last membership
+                report received for this IPv6 Multicast group address on
+                this interface.  If no membership report has been
+                received, this object has the value 0::0."
+       ::= { mldCacheEntry 4 }
+
+   mldCacheUpTime OBJECT-TYPE
+       SYNTAX     TimeTicks
+       MAX-ACCESS read-only
+       STATUS     current
+       DESCRIPTION
+               "The time elapsed since this entry was created."
+       ::= { mldCacheEntry 5 }
+
+   mldCacheExpiryTime OBJECT-TYPE
+       SYNTAX     TimeTicks
+       MAX-ACCESS read-only
+       STATUS     current
+       DESCRIPTION
+                "The minimum amount of time remaining before this entry
+                will be aged out.  A value of 0 indicates that the entry
+                is only present because mldCacheSelf is true and that if
+                the router left the group, this entry would be aged out
+                immediately.  Note that some implementations may process
+                Membership Reports from the local system in the same way
+                as reports from other hosts, so a value of 0 is not
+                required."
+       ::= { mldCacheEntry 6 }
+
+   mldCacheStatus OBJECT-TYPE
+       SYNTAX     RowStatus
+       MAX-ACCESS read-create
+       STATUS     current
+       DESCRIPTION
+               "The status of this row, by which new entries may be
+               created, or existing entries deleted from this table."
+       ::= { mldCacheEntry 7 }
+
+   -- conformance information
+
+   mldMIBConformance
+                  OBJECT IDENTIFIER ::= { mldMIB 2 }
+   mldMIBCompliances
+                  OBJECT IDENTIFIER ::= { mldMIBConformance 1 }
+   mldMIBGroups
+                  OBJECT IDENTIFIER ::= { mldMIBConformance 2 }
+
+
+   -- compliance statements
+
+   mldHostMIBCompliance MODULE-COMPLIANCE
+       STATUS  current
+       DESCRIPTION
+               "The compliance statement for hosts running MLD and
+               implementing the MLD MIB."
+       MODULE  -- this module
+       MANDATORY-GROUPS { mldBaseMIBGroup,
+                          mldHostMIBGroup
+                        }
+
+       OBJECT     mldInterfaceStatus
+       MIN-ACCESS read-only
+       DESCRIPTION
+                "Write access is not required."
+
+       ::= { mldMIBCompliances 1 }
+
+   mldRouterMIBCompliance MODULE-COMPLIANCE
+       STATUS  current
+       DESCRIPTION
+               "The compliance statement for routers running MLD and
+               implementing the MLD MIB."
+       MODULE  -- this module
+       MANDATORY-GROUPS { mldBaseMIBGroup,
+                          mldRouterMIBGroup
+                        }
+
+       OBJECT     mldInterfaceStatus
+       MIN-ACCESS read-only
+       DESCRIPTION
+                "Write access is not required."
+
+       ::= { mldMIBCompliances 2 }
+
+
+   -- units of conformance
+
+   mldBaseMIBGroup OBJECT-GROUP
+       OBJECTS { mldCacheSelf,
+                 mldCacheStatus, mldInterfaceStatus
+               }
+       STATUS  current
+       DESCRIPTION
+               "The basic collection of objects providing management of
+               MLD.  The mldBaseMIBGroup is designed to allow for the
+               manager creation and deletion of MLD cache entries."
+       ::= { mldMIBGroups 1 }
+
+   mldRouterMIBGroup OBJECT-GROUP
+       OBJECTS { mldCacheUpTime, mldCacheExpiryTime,
+                 mldInterfaceQueryInterval,
+                 mldInterfaceJoins, mldInterfaceGroups,
+                 mldCacheLastReporter,
+                 mldInterfaceQuerierUpTime,
+                 mldInterfaceQuerierExpiryTime,
+                 mldInterfaceQuerier,
+                 mldInterfaceVersion,
+                 mldInterfaceQueryMaxRespDelay,
+                 mldInterfaceRobustness,
+                 mldInterfaceLastListenQueryIntvl
+               }
+       STATUS  current
+       DESCRIPTION
+               "A collection of additional objects for management of MLD
+               in routers."
+       ::= { mldMIBGroups 2 }
+
+
+   mldHostMIBGroup OBJECT-GROUP
+       OBJECTS { mldInterfaceQuerier
+               }
+       STATUS  current
+       DESCRIPTION
+               "A collection of additional objects for management of MLD
+               in hosts."
+       ::= { mldMIBGroups 3 }
+
+
+   mldProxyMIBGroup OBJECT-GROUP
+       OBJECTS { mldInterfaceProxyIfIndex }
+       STATUS  current
+       DESCRIPTION
+               "A collection of additional objects for management of MLD
+               proxy devices."
+       ::= { mldMIBGroups 4 }
+
+   END
+