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+
+Network Working Group J. Chesterfield
+Request for Comments: 5519 University of Cambridge
+Obsoletes: 2933, 3019 B. Haberman, Ed.
+Category: Standards Track JHU/APL
+ April 2009
+
+
+ Multicast Group Membership Discovery MIB
+
+Status of This Memo
+
+ This document specifies an Internet standards track protocol for the
+ Internet community, and requests discussion and suggestions for
+ improvements. Please refer to the current edition of the "Internet
+ Official Protocol Standards" (STD 1) for the standardization state
+ and status of this protocol. Distribution of this memo is unlimited.
+
+Copyright Notice
+
+ Copyright (c) 2009 IETF Trust and the persons identified as the
+ document authors. All rights reserved.
+
+ This document is subject to BCP 78 and the IETF Trust's Legal
+ Provisions Relating to IETF Documents in effect on the date of
+ publication of this document (http://trustee.ietf.org/license-info).
+ Please review these documents carefully, as they describe your rights
+ and restrictions with respect to this document.
+
+Abstract
+
+ This memo defines a portion of the Management Information Base (MIB)
+ for use with network management protocols in the Internet community.
+ In particular, it describes objects used for managing the Internet
+ Group Management Protocol (IGMP) and the Multicast Listener Discovery
+ (MLD) protocol.
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+Chesterfield & Haberman Standards Track [Page 1]
+
+RFC 5519 MGMD MIB April 2009
+
+
+Table of Contents
+
+ 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 2
+ 2. The Internet-Standard Management Framework . . . . . . . . . . 2
+ 3. Conventions . . . . . . . . . . . . . . . . . . . . . . . . . 3
+ 4. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
+ 5. Definitions . . . . . . . . . . . . . . . . . . . . . . . . . 4
+ 6. Security Considerations . . . . . . . . . . . . . . . . . . . 38
+ 7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 39
+ 8. Contributors . . . . . . . . . . . . . . . . . . . . . . . . . 39
+ 9. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 40
+ 10. References . . . . . . . . . . . . . . . . . . . . . . . . . . 40
+ 10.1. Normative References . . . . . . . . . . . . . . . . . . 40
+ 10.2. Informative References . . . . . . . . . . . . . . . . . 41
+
+1. Introduction
+
+ This memo defines a portion of the Management Information Base (MIB)
+ for use with network management protocols in the Internet community.
+ In particular, it describes objects used for managing the Internet
+ Group Management Protocol (IGMP) version 1 [RFC1112], version 2
+ [RFC2236], or version 3 [RFC3376] and the Multicast Listener
+ Discovery (MLD) protocol version 1 [RFC2710] or version 2 [RFC3810].
+ Both protocols provide multicast membership discovery capability.
+ IGMP pertains to IP version 4 clients, and MLD to IP version 6
+ clients. This version of the MIB obsoletes both RFC 2933 [RFC2933]
+ and RFC 3019 [RFC3019], incorporating a generic interface for both
+ IGMP and MLD implementations and incorporating changes to enable
+ "source filtering" in multicast clients. The MIB encompasses both
+ router and host nodes with relevant management objects defined for
+ each.
+
+2. The Internet-Standard Management Framework
+
+ For a detailed overview of the documents that describe the current
+ Internet-Standard Management Framework, please refer to section 7 of
+ RFC 3410 [RFC3410].
+
+ Managed objects are accessed via a virtual information store, termed
+ the Management Information Base or MIB. MIB objects are generally
+ accessed through the Simple Network Management Protocol (SNMP).
+ Objects in the MIB are defined using the mechanisms defined in the
+ Structure of Management Information (SMI). This memo specifies a MIB
+ module that is compliant to the SMIv2, which is described in STD 58,
+ RFC 2578 [RFC2578], STD 58, RFC 2579 [RFC2579] and STD 58, RFC 2580
+ [RFC2580].
+
+
+
+
+
+Chesterfield & Haberman Standards Track [Page 2]
+
+RFC 5519 MGMD MIB April 2009
+
+
+3. Conventions
+
+ The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
+ "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
+ document are to be interpreted as described in RFC 2119 [RFC2119].
+
+4. Overview
+
+ This Multicast Group Membership Discovery (MGMD) MIB module contains
+ eight tables:
+
+ 1. the MGMD Host Interface Table, which contains one row for each
+ interface on which IGMP or MLD is enabled on a host,
+
+ 2. the MGMD Router Interface Table, which contains one row for each
+ interface on which MGMD is enabled on a router,
+
+ 3. the MGMD Host Cache Table, which contains one row for each IP
+ multicast group for which there are members on a particular
+ interface on a host,
+
+ 4. the MGMD Router Cache Table, which contains one row for each IP
+ multicast group for which there are members on a particular
+ interface on a router,
+
+ 5. the reverse MGMD Host Table, which contains one row for each
+ interface for which there are active multicast groups on a host,
+
+ 6. the reverse MGMD Router Table, which contains one row for each
+ interface for which there are active multicast groups on a
+ router,
+
+ 7. the MGMD HostSrcList Table, which contains one row for each entry
+ in the source filter record for an interface and multicast group
+ pair on a host, and
+
+ 8. the MGMD RouterSrcList Table, which contains one row for each
+ entry in the source filter record for an interface and multicast
+ group pair on a router.
+
+ All tables are intended for EITHER router OR host functionality as
+ indicated by the name and corresponding description, although it is
+ anticipated that there will be scenarios where both terms might apply
+ to a device, e.g., a router that joins a multicast group also as a
+ host for measurement purposes. The source list tables provide an
+ extension to the cache tables to indicate the source-specific
+
+
+
+
+
+Chesterfield & Haberman Standards Track [Page 3]
+
+RFC 5519 MGMD MIB April 2009
+
+
+ includes or excludes associated with each IP multicast group on each
+ specific interface. This functionality is only supported in IGMPv3-
+ and MLDv2-capable nodes.
+
+ Incorporated within the MGMD MIB tables are objects for the
+ management of IGMP and MLD proxy devices as described in RFC 4605
+ [RFC4605]. Proxy devices can be used in simple topologies where it
+ is not necessary to run a full multicast routing protocol. A proxy
+ device can make forwarding decisions based on IGMP or MLD group
+ membership activity.
+
+ The MIB references InterfaceIndex and InterfaceIndexOrZero objects as
+ defined in RFC 2863 [RFC2863], the MIB that describes generic objects
+ for network interface sub-layers.
+
+ Extensive references to the InetAddress and InetAddressType objects
+ are made as defined in RFC 4001 [RFC4001].
+
+5. Definitions
+
+MGMD-STD-MIB DEFINITIONS ::= BEGIN
+
+IMPORTS
+ MODULE-IDENTITY, OBJECT-TYPE, mib-2, Counter32, Gauge32,
+ Unsigned32, TimeTicks FROM SNMPv2-SMI
+ InetAddress, InetAddressType FROM INET-ADDRESS-MIB
+ RowStatus FROM SNMPv2-TC
+ MODULE-COMPLIANCE, OBJECT-GROUP FROM SNMPv2-CONF
+ InterfaceIndexOrZero,
+ InterfaceIndex FROM IF-MIB;
+
+mgmdStdMIB MODULE-IDENTITY
+ LAST-UPDATED "200903300000Z" -- March 30, 2009
+ ORGANIZATION "INTERNET ENGINEERING TASK FORCE MULTICAST and
+ ANYCAST GROUP MEMBERSHIP Working
+ Group.
+ www: http://www.ietf.org/html.charters/magma-charter.html
+ EMail: magma@ietf.org"
+ CONTACT-INFO
+ "Julian Chesterfield
+ University of Cambridge,
+ Computer Laboratory,
+ 15 JJ Thompson Avenue,
+ Cambridge,
+ CB3 0FD
+ UK
+
+ EMail: julian.chesterfield@cl.cam.ac.uk"
+
+
+
+Chesterfield & Haberman Standards Track [Page 4]
+
+RFC 5519 MGMD MIB April 2009
+
+
+ DESCRIPTION
+ "The MIB module for MGMD management.
+ A new version of MGMD combining RFC 2933 and RFC 3019.
+ Includes IGMPv3 and MLDv2 source filtering changes.
+
+ Copyright (c) 2009 IETF Trust and the persons
+ identified as authors of the code. All rights reserved.
+
+ Redistribution and use in source and binary forms, with or
+ without modification, are permitted provided that the
+ following conditions are met:
+
+ - Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+
+ - Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the following
+ disclaimer in the documentation and/or other materials
+ provided with the distribution.
+
+ - Neither the name of Internet Society, IETF or IETF Trust,
+ nor the names of specific contributors, may be used to endorse
+ or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ CONTRIBUTORS 'AS IS' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+ This version of this MIB module is part of RFC 5519;
+ see the RFC itself for full legal notices."
+
+ REVISION "200903300000Z" -- March 30, 2009
+ DESCRIPTION
+ "This MIB obsoletes both RFC 2933 and RFC 3019."
+
+ ::= { mib-2 185 }
+
+
+
+
+Chesterfield & Haberman Standards Track [Page 5]
+
+RFC 5519 MGMD MIB April 2009
+
+
+mgmdMIBObjects OBJECT IDENTIFIER ::= { mgmdStdMIB 1 }
+
+--
+-- The MGMD Host Interface Table
+--
+
+mgmdHostInterfaceTable OBJECT-TYPE
+ SYNTAX SEQUENCE OF MgmdHostInterfaceEntry
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "The (conceptual) table listing the interfaces on which
+ IGMP or MLD is enabled."
+
+ ::= { mgmdMIBObjects 1 }
+
+mgmdHostInterfaceEntry OBJECT-TYPE
+ SYNTAX MgmdHostInterfaceEntry
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "An entry (conceptual row) representing an interface on
+ which IGMP or MLD is enabled."
+ INDEX { mgmdHostInterfaceIfIndex,
+ mgmdHostInterfaceQuerierType }
+
+ ::= { mgmdHostInterfaceTable 1 }
+
+MgmdHostInterfaceEntry ::= SEQUENCE {
+ mgmdHostInterfaceIfIndex InterfaceIndex,
+ mgmdHostInterfaceQuerierType InetAddressType,
+ mgmdHostInterfaceQuerier InetAddress,
+ mgmdHostInterfaceStatus RowStatus,
+ mgmdHostInterfaceVersion Unsigned32,
+ mgmdHostInterfaceVersion1QuerierTimer TimeTicks,
+ mgmdHostInterfaceVersion2QuerierTimer TimeTicks,
+ mgmdHostInterfaceVersion3Robustness Unsigned32
+}
+
+mgmdHostInterfaceIfIndex OBJECT-TYPE
+ SYNTAX InterfaceIndex
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "The ifIndex value of the interface for which IGMP or MLD is
+ enabled. The table is indexed by the ifIndex value and the
+ InetAddressType to allow for interfaces that may be
+ configured in both IPv4 and IPv6 modes."
+
+
+
+Chesterfield & Haberman Standards Track [Page 6]
+
+RFC 5519 MGMD MIB April 2009
+
+
+ ::= { mgmdHostInterfaceEntry 1 }
+
+mgmdHostInterfaceQuerierType OBJECT-TYPE
+ SYNTAX InetAddressType { ipv4(1), ipv6(2) }
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "The address type of this interface. This entry along with
+ the ifIndex value acts as an index to the mgmdHostInterface
+ table. A physical interface may be configured in multiple
+ modes concurrently, e.g., in IPv4 and IPv6 modes connected
+ to the same interface; however, the traffic is considered
+ to be logically separate."
+
+ ::= { mgmdHostInterfaceEntry 2 }
+
+mgmdHostInterfaceQuerier OBJECT-TYPE
+ SYNTAX InetAddress (SIZE(4|16))
+ MAX-ACCESS read-only
+ STATUS current
+ DESCRIPTION
+ "The address of the IGMP or MLD Querier on the IP subnet to
+ which this interface is attached. The InetAddressType,
+ e.g., IPv4 or IPv6, is identified by the
+ mgmdHostInterfaceQuerierType variable in the
+ mgmdHostInterface table."
+
+ ::= { mgmdHostInterfaceEntry 3 }
+
+mgmdHostInterfaceStatus OBJECT-TYPE
+ SYNTAX RowStatus
+ MAX-ACCESS read-create
+ STATUS current
+ DESCRIPTION
+ "The activation of a row enables the host side of IGMP or
+ MLD on the interface. The destruction of a row disables
+ the host side of IGMP or MLD on the interface."
+
+ ::= { mgmdHostInterfaceEntry 4 }
+
+mgmdHostInterfaceVersion OBJECT-TYPE
+ SYNTAX Unsigned32 (1..3)
+ MAX-ACCESS read-create
+ STATUS current
+ DESCRIPTION
+ "The maximum version of MGMD that the host can run on
+ this interface. A value of 1 is only applicable for IPv4,
+ and indicates that the host only supports IGMPv1 on the
+
+
+
+Chesterfield & Haberman Standards Track [Page 7]
+
+RFC 5519 MGMD MIB April 2009
+
+
+ interface. A value of 2 indicates that the host also
+ supports IGMPv2 (for IPv4) or MLDv1 (for IPv6). A value of
+ 3 indicates that the host also supports IGMPv3 (for IPv4)
+ or MLDv2 (for IPv6)."
+ DEFVAL { 3 }
+
+ ::= { mgmdHostInterfaceEntry 5 }
+
+mgmdHostInterfaceVersion1QuerierTimer OBJECT-TYPE
+ SYNTAX TimeTicks
+ MAX-ACCESS read-only
+ STATUS current
+ DESCRIPTION
+ "The time remaining until the host assumes that there are
+ no IGMPv1 routers present on the interface. While this is
+ non-zero, the host will reply to all queries with version 1
+ membership reports. This variable applies to IGMPv2 or 3
+ hosts that are forced to run in v1 for compatibility with
+ v1 routers present on the interface. This object may only
+ be present when the corresponding value of
+ mgmdHostInterfaceQuerierType is ipv4."
+ REFERENCE "RFC 2236, Section 4 and RFC 3376, Section 7.2.1"
+ DEFVAL { 0 }
+
+ ::= { mgmdHostInterfaceEntry 6 }
+
+mgmdHostInterfaceVersion2QuerierTimer OBJECT-TYPE
+ SYNTAX TimeTicks
+ MAX-ACCESS read-only
+ STATUS current
+ DESCRIPTION
+ "The time remaining until the host assumes that there are
+ no MGMDv2 routers present on the interface. While this is
+ non-zero, the host will reply to all queries with version 1
+ or 2 membership reports. This variable applies to MGMDv3
+ hosts that are forced to run in v2 for compatibility with
+ v2 hosts or routers present on the interface."
+ REFERENCE "RFC 3376, Section 7.2.1 and RFC 3810, Section 8.2.1"
+ DEFVAL { 0 }
+
+ ::= { mgmdHostInterfaceEntry 7 }
+
+mgmdHostInterfaceVersion3Robustness OBJECT-TYPE
+ SYNTAX Unsigned32
+ MAX-ACCESS read-create
+ STATUS current
+
+
+
+
+
+Chesterfield & Haberman Standards Track [Page 8]
+
+RFC 5519 MGMD MIB April 2009
+
+
+ DESCRIPTION
+ "The robustness variable utilised by an MGMDv3 host in
+ sending state-change reports for multicast routers. To
+ ensure the state-change report is not missed, the host
+ retransmits the state-change report
+ [mgmdHostInterfaceVersion3Robustness - 1] times. The
+ variable must be a non-zero value."
+ REFERENCE "RFC 3376, Section 8.1 and RFC 3810, Section 9.14.1"
+ DEFVAL { 2 }
+
+ ::= { mgmdHostInterfaceEntry 8 }
+
+--
+-- The MGMD Router Interface Table
+--
+
+mgmdRouterInterfaceTable OBJECT-TYPE
+ SYNTAX SEQUENCE OF MgmdRouterInterfaceEntry
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "The (conceptual) table listing the interfaces on which
+ IGMP or MLD is enabled."
+
+ ::= { mgmdMIBObjects 2 }
+
+mgmdRouterInterfaceEntry OBJECT-TYPE
+ SYNTAX MgmdRouterInterfaceEntry
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "An entry (conceptual row) representing an interface on
+ which IGMP or MLD is enabled."
+ INDEX { mgmdRouterInterfaceIfIndex,
+ mgmdRouterInterfaceQuerierType }
+
+ ::= { mgmdRouterInterfaceTable 1 }
+
+MgmdRouterInterfaceEntry ::= SEQUENCE {
+ mgmdRouterInterfaceIfIndex InterfaceIndex,
+ mgmdRouterInterfaceQuerierType InetAddressType,
+ mgmdRouterInterfaceQuerier InetAddress,
+ mgmdRouterInterfaceQueryInterval Unsigned32,
+ mgmdRouterInterfaceStatus RowStatus,
+ mgmdRouterInterfaceVersion Unsigned32,
+ mgmdRouterInterfaceQueryMaxResponseTime Unsigned32,
+ mgmdRouterInterfaceQuerierUpTime TimeTicks,
+ mgmdRouterInterfaceQuerierExpiryTime TimeTicks,
+
+
+
+Chesterfield & Haberman Standards Track [Page 9]
+
+RFC 5519 MGMD MIB April 2009
+
+
+ mgmdRouterInterfaceWrongVersionQueries Counter32,
+ mgmdRouterInterfaceJoins Counter32,
+ mgmdRouterInterfaceProxyIfIndex InterfaceIndexOrZero,
+ mgmdRouterInterfaceGroups Gauge32,
+ mgmdRouterInterfaceRobustness Unsigned32,
+ mgmdRouterInterfaceLastMemberQueryInterval Unsigned32,
+ mgmdRouterInterfaceLastMemberQueryCount Unsigned32,
+ mgmdRouterInterfaceStartupQueryCount Unsigned32,
+ mgmdRouterInterfaceStartupQueryInterval Unsigned32
+}
+
+mgmdRouterInterfaceIfIndex OBJECT-TYPE
+ SYNTAX InterfaceIndex
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "The ifIndex value of the interface for which IGMP or MLD
+ is enabled. The table is indexed by the ifIndex value and
+ the InetAddressType to allow for interfaces that may be
+ configured in both IPv4 and IPv6 modes."
+
+ ::= { mgmdRouterInterfaceEntry 1 }
+
+mgmdRouterInterfaceQuerierType OBJECT-TYPE
+ SYNTAX InetAddressType { ipv4(1), ipv6(2) }
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "The address type of this interface. This entry along with
+ the ifIndex value acts as the index to the
+ mgmdRouterInterface table. A physical interface may be
+ configured in multiple modes concurrently, e.g., in IPv4
+ and IPv6 modes connected to the same interface; however,
+ the traffic is considered to be logically separate."
+
+ ::= { mgmdRouterInterfaceEntry 2 }
+
+mgmdRouterInterfaceQuerier OBJECT-TYPE
+ SYNTAX InetAddress (SIZE(4|16))
+ MAX-ACCESS read-only
+ STATUS current
+ DESCRIPTION
+ "The address of the IGMP or MLD Querier on the IP subnet to
+ which this interface is attached. The InetAddressType,
+ e.g., IPv4 or IPv6, is identified by the
+ mgmdRouterInterfaceQuerierType variable in the
+ mgmdRouterInterface table."
+
+
+
+
+Chesterfield & Haberman Standards Track [Page 10]
+
+RFC 5519 MGMD MIB April 2009
+
+
+ ::= { mgmdRouterInterfaceEntry 3 }
+
+mgmdRouterInterfaceQueryInterval OBJECT-TYPE
+ SYNTAX Unsigned32 (1..31744)
+ UNITS "seconds"
+ MAX-ACCESS read-create
+ STATUS current
+ DESCRIPTION
+ "The frequency at which IGMP or MLD Host-Query packets are
+ transmitted on this interface."
+ DEFVAL { 125 }
+
+ ::= { mgmdRouterInterfaceEntry 4 }
+
+mgmdRouterInterfaceStatus OBJECT-TYPE
+ SYNTAX RowStatus
+ MAX-ACCESS read-create
+ STATUS current
+ DESCRIPTION
+ "The activation of a row enables the router side of IGMP or
+ MLD on the interface. The destruction of a row disables
+ the router side of IGMP or MLD on the interface."
+
+ ::= { mgmdRouterInterfaceEntry 5 }
+
+mgmdRouterInterfaceVersion OBJECT-TYPE
+ SYNTAX Unsigned32 (1..3)
+ MAX-ACCESS read-create
+ STATUS current
+ DESCRIPTION
+ "The version of MGMD that is running on this interface.
+ Value 1 applies to IGMPv1 routers only. Value 2 applies
+ to IGMPv2 and MLDv1 routers, and value 3 applies to IGMPv3
+ and MLDv2 routers.
+
+ This object can be used to configure a router capable of
+ running either version. For IGMP and MLD to function
+ correctly, all routers on a LAN must be configured to run
+ the same version on that LAN."
+ DEFVAL { 3 }
+
+ ::= { mgmdRouterInterfaceEntry 6 }
+
+mgmdRouterInterfaceQueryMaxResponseTime OBJECT-TYPE
+ SYNTAX Unsigned32 (0..31744)
+ UNITS "tenths of seconds"
+ MAX-ACCESS read-create
+ STATUS current
+
+
+
+Chesterfield & Haberman Standards Track [Page 11]
+
+RFC 5519 MGMD MIB April 2009
+
+
+ DESCRIPTION
+ "The maximum query response interval advertised in MGMDv2
+ or IGMPv3 queries on this interface."
+ REFERENCE "RFC 3810, Section 9.3"
+ DEFVAL { 100 }
+
+ ::= { mgmdRouterInterfaceEntry 7 }
+
+mgmdRouterInterfaceQuerierUpTime OBJECT-TYPE
+ SYNTAX TimeTicks
+ MAX-ACCESS read-only
+ STATUS current
+ DESCRIPTION
+ "The time since mgmdRouterInterfaceQuerier was last
+ changed."
+
+ ::= { mgmdRouterInterfaceEntry 8 }
+
+mgmdRouterInterfaceQuerierExpiryTime OBJECT-TYPE
+ SYNTAX TimeTicks
+ MAX-ACCESS read-only
+ STATUS current
+ DESCRIPTION
+ "The amount of time remaining before the Other Querier
+ Present Timer expires. If the local system is the querier,
+ the value of this object is zero."
+
+ ::= { mgmdRouterInterfaceEntry 9 }
+
+mgmdRouterInterfaceWrongVersionQueries OBJECT-TYPE
+ SYNTAX Counter32
+ MAX-ACCESS read-only
+ STATUS current
+ DESCRIPTION
+ "The number of general queries received whose IGMP or MLD
+ version does not match the equivalent
+ mgmdRouterInterfaceVersion, over the lifetime of the row
+ entry. Both IGMP and MLD require that all routers on a LAN
+ be configured to run the same version. Thus, if any general
+ queries are received with the wrong version, this indicates
+ a configuration error."
+
+ ::= { mgmdRouterInterfaceEntry 10 }
+
+mgmdRouterInterfaceJoins OBJECT-TYPE
+ SYNTAX Counter32
+
+ MAX-ACCESS read-only
+
+
+
+Chesterfield & Haberman Standards Track [Page 12]
+
+RFC 5519 MGMD MIB April 2009
+
+
+ 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 can give an indication of the amount of activity
+ between samples over time."
+
+ ::= { mgmdRouterInterfaceEntry 11 }
+
+mgmdRouterInterfaceProxyIfIndex OBJECT-TYPE
+ SYNTAX InterfaceIndexOrZero
+ MAX-ACCESS read-create
+ STATUS current
+ DESCRIPTION
+ "Some devices implement a form of IGMP or MLD proxying
+ whereby memberships learned on the interface represented by
+ this row cause Host Membership Reports to be sent on the
+ interface whose ifIndex value is given by this object.
+ Such a device would implement the mgmdV2RouterBaseMIBGroup
+ only on its router interfaces (those interfaces with
+ non-zero mgmdRouterInterfaceProxyIfIndex). Typically, the
+ value of this object is 0, indicating that no proxying is
+ being done."
+ DEFVAL { 0 }
+
+ ::= { mgmdRouterInterfaceEntry 12 }
+
+mgmdRouterInterfaceGroups OBJECT-TYPE
+ SYNTAX Gauge32
+ MAX-ACCESS read-only
+ STATUS current
+ DESCRIPTION
+ "The current number of entries for this interface in the
+ mgmdRouterCacheTable."
+
+ ::= { mgmdRouterInterfaceEntry 13 }
+
+mgmdRouterInterfaceRobustness OBJECT-TYPE
+ SYNTAX Unsigned32 (1..255)
+ 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. IGMP and
+ MLD are robust to (Robustness Variable-1) packet losses."
+ DEFVAL { 2 }
+
+
+
+Chesterfield & Haberman Standards Track [Page 13]
+
+RFC 5519 MGMD MIB April 2009
+
+
+ ::= { mgmdRouterInterfaceEntry 14 }
+
+mgmdRouterInterfaceLastMemberQueryInterval OBJECT-TYPE
+ SYNTAX Unsigned32 (0..31744)
+ UNITS "tenths of seconds"
+ MAX-ACCESS read-create
+ STATUS current
+ DESCRIPTION
+ "The Last Member Query Interval is the Max Query Response
+ Interval 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. The value of this object is
+ irrelevant if mgmdRouterInterfaceVersion is 1."
+ DEFVAL { 10 }
+
+ ::= { mgmdRouterInterfaceEntry 15 }
+
+mgmdRouterInterfaceLastMemberQueryCount OBJECT-TYPE
+ SYNTAX Unsigned32 (1..255)
+ MAX-ACCESS read-only
+ STATUS current
+ DESCRIPTION
+ "Represents the number of group-specific and group-and-
+ source-specific queries sent by the router before it assumes
+ there are no local members."
+
+ ::= { mgmdRouterInterfaceEntry 16 }
+
+mgmdRouterInterfaceStartupQueryCount OBJECT-TYPE
+ SYNTAX Unsigned32 (1..255)
+ MAX-ACCESS read-only
+ STATUS current
+ DESCRIPTION
+ "Represents the number of Queries sent out on startup,
+ separated by the Startup Query Interval."
+
+ ::= { mgmdRouterInterfaceEntry 17 }
+
+mgmdRouterInterfaceStartupQueryInterval OBJECT-TYPE
+ SYNTAX Unsigned32 (0..31744)
+ UNITS "seconds"
+ MAX-ACCESS read-only
+ STATUS current
+
+
+
+
+
+Chesterfield & Haberman Standards Track [Page 14]
+
+RFC 5519 MGMD MIB April 2009
+
+
+ DESCRIPTION
+ "This variable represents the interval between General
+ Queries sent by a Querier on startup."
+
+ ::= { mgmdRouterInterfaceEntry 18 }
+
+--
+-- The MGMD Host Cache Table
+--
+
+mgmdHostCacheTable OBJECT-TYPE
+ SYNTAX SEQUENCE OF MgmdHostCacheEntry
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "The (conceptual) table listing the IP multicast groups for
+ which the host is a member on a particular interface."
+
+ ::= { mgmdMIBObjects 3 }
+
+mgmdHostCacheEntry OBJECT-TYPE
+ SYNTAX MgmdHostCacheEntry
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "An entry (conceptual row) in the mgmdHostCacheTable."
+ INDEX { mgmdHostCacheAddressType, mgmdHostCacheAddress,
+ mgmdHostCacheIfIndex }
+
+ ::= { mgmdHostCacheTable 1 }
+
+MgmdHostCacheEntry ::= SEQUENCE {
+ mgmdHostCacheAddressType InetAddressType,
+ mgmdHostCacheAddress InetAddress ,
+ mgmdHostCacheIfIndex InterfaceIndex,
+ mgmdHostCacheUpTime TimeTicks,
+ mgmdHostCacheLastReporter InetAddress,
+ mgmdHostCacheSourceFilterMode INTEGER
+}
+
+mgmdHostCacheAddressType OBJECT-TYPE
+ SYNTAX InetAddressType { ipv4(1), ipv6(2) }
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "The address type of the mgmdHostCacheTable entry. This
+ value applies to both the mgmdHostCacheAddress and the
+ mgmdHostCacheLastReporter entries."
+
+
+
+Chesterfield & Haberman Standards Track [Page 15]
+
+RFC 5519 MGMD MIB April 2009
+
+
+ ::= { mgmdHostCacheEntry 1 }
+
+mgmdHostCacheAddress OBJECT-TYPE
+ SYNTAX InetAddress (SIZE(4|16))
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "The IP multicast group address for which this entry
+ contains information. The InetAddressType, e.g., IPv4 or
+ IPv6, is identified by the mgmdHostCacheAddressType variable
+ in the mgmdHostCache table."
+
+ ::= { mgmdHostCacheEntry 2 }
+
+mgmdHostCacheIfIndex OBJECT-TYPE
+ SYNTAX InterfaceIndex
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "The interface for which this entry contains information
+ for an IP multicast group address."
+
+ ::= { mgmdHostCacheEntry 3 }
+
+mgmdHostCacheUpTime OBJECT-TYPE
+ SYNTAX TimeTicks
+ MAX-ACCESS read-only
+ STATUS current
+ DESCRIPTION
+ "The time elapsed since this entry was created."
+
+ ::= { mgmdHostCacheEntry 4 }
+
+mgmdHostCacheLastReporter OBJECT-TYPE
+ SYNTAX InetAddress (SIZE(4|16))
+ MAX-ACCESS read-only
+ STATUS current
+ DESCRIPTION
+ "The IP address of the source of the last membership report
+ received for this IP multicast group address on this
+ interface. If no membership report has been received, this
+ object has a value of 0. The InetAddressType, e.g., IPv4 or
+ IPv6, is identified by the mgmdHostCacheAddressType variable
+ in the mgmdHostCache table."
+
+ ::= { mgmdHostCacheEntry 5 }
+
+mgmdHostCacheSourceFilterMode OBJECT-TYPE
+
+
+
+Chesterfield & Haberman Standards Track [Page 16]
+
+RFC 5519 MGMD MIB April 2009
+
+
+ SYNTAX INTEGER {include (1),
+ exclude (2) }
+ MAX-ACCESS read-only
+ STATUS current
+ DESCRIPTION
+ "The state in which the interface is currently set. The
+ value indicates the relevance of the corresponding source
+ list entries in the mgmdHostSecListTable for MGMDv3
+ interfaces."
+
+ ::= { mgmdHostCacheEntry 6 }
+
+--
+-- The MGMD Router Cache Table
+--
+
+mgmdRouterCacheTable OBJECT-TYPE
+ SYNTAX SEQUENCE OF MgmdRouterCacheEntry
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "The (conceptual) table listing the IP multicast groups for
+ which there are members on a particular router interface."
+
+ ::= { mgmdMIBObjects 4 }
+
+mgmdRouterCacheEntry OBJECT-TYPE
+ SYNTAX MgmdRouterCacheEntry
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "An entry (conceptual row) in the mgmdRouterCacheTable."
+
+ INDEX { mgmdRouterCacheAddressType, mgmdRouterCacheAddress,
+ mgmdRouterCacheIfIndex }
+
+ ::= { mgmdRouterCacheTable 1 }
+
+MgmdRouterCacheEntry ::= SEQUENCE {
+ mgmdRouterCacheAddressType InetAddressType,
+ mgmdRouterCacheAddress InetAddress,
+ mgmdRouterCacheIfIndex InterfaceIndex,
+ mgmdRouterCacheLastReporter InetAddress,
+ mgmdRouterCacheUpTime TimeTicks,
+ mgmdRouterCacheExpiryTime TimeTicks,
+ mgmdRouterCacheExcludeModeExpiryTimer
+ TimeTicks,
+ mgmdRouterCacheVersion1HostTimer TimeTicks,
+
+
+
+Chesterfield & Haberman Standards Track [Page 17]
+
+RFC 5519 MGMD MIB April 2009
+
+
+ mgmdRouterCacheVersion2HostTimer TimeTicks,
+ mgmdRouterCacheSourceFilterMode INTEGER
+}
+
+mgmdRouterCacheAddressType OBJECT-TYPE
+ SYNTAX InetAddressType { ipv4(1), ipv6(2) }
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "The address type of the mgmdRouterCacheTable entry. This
+ value applies to both the mgmdRouterCacheAddress and the
+ mgmdRouterCacheLastReporter entries."
+
+ ::= { mgmdRouterCacheEntry 1 }
+
+mgmdRouterCacheAddress OBJECT-TYPE
+ SYNTAX InetAddress (SIZE(4|16))
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "The IP multicast group address for which this entry
+ contains information. The InetAddressType, e.g., IPv4 or
+ IPv6, is identified by the mgmdRouterCacheAddressType
+ variable in the mgmdRouterCache table."
+
+ ::= { mgmdRouterCacheEntry 2 }
+
+mgmdRouterCacheIfIndex OBJECT-TYPE
+ SYNTAX InterfaceIndex
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "The interface for which this entry contains information
+ for an IP multicast group address."
+
+ ::= { mgmdRouterCacheEntry 3 }
+
+mgmdRouterCacheLastReporter OBJECT-TYPE
+ SYNTAX InetAddress (SIZE(4|16))
+ MAX-ACCESS read-only
+ STATUS current
+ DESCRIPTION
+ "The IP address of the source of the last membership report
+ received for this IP multicast group address on this
+ interface. If no membership report has been received, this
+ object has the value 0. The InetAddressType, e.g., IPv4 or
+ IPv6, is identified by the mgmdRouterCacheAddressType
+ variable in the mgmdRouterCache table."
+
+
+
+Chesterfield & Haberman Standards Track [Page 18]
+
+RFC 5519 MGMD MIB April 2009
+
+
+ ::= { mgmdRouterCacheEntry 4 }
+
+mgmdRouterCacheUpTime OBJECT-TYPE
+ SYNTAX TimeTicks
+ MAX-ACCESS read-only
+ STATUS current
+ DESCRIPTION
+ "The time elapsed since this entry was created."
+
+ ::= { mgmdRouterCacheEntry 5 }
+
+mgmdRouterCacheExpiryTime OBJECT-TYPE
+ SYNTAX TimeTicks
+ MAX-ACCESS read-only
+ STATUS current
+ DESCRIPTION
+ "This value represents the time remaining before the Group
+ Membership Interval state expires. The value must always be
+ greater than or equal to 1."
+
+ ::= { mgmdRouterCacheEntry 6 }
+
+mgmdRouterCacheExcludeModeExpiryTimer OBJECT-TYPE
+ SYNTAX TimeTicks
+ MAX-ACCESS read-only
+ STATUS current
+ DESCRIPTION
+ "This value is applicable only to MGMDv3-compatible nodes
+ and represents the time remaining before the interface
+ EXCLUDE state expires and the interface state transitions
+ to INCLUDE mode. This value can never be greater than
+ mgmdRouterCacheExpiryTime."
+
+ ::= { mgmdRouterCacheEntry 7 }
+
+mgmdRouterCacheVersion1HostTimer OBJECT-TYPE
+ SYNTAX TimeTicks
+ MAX-ACCESS read-only
+ STATUS current
+ DESCRIPTION
+ "The time remaining until the local router will assume that
+ there are no longer any MGMD version 1 members on the IP
+ subnet attached to this interface. This entry only applies
+ to IGMPv1 hosts, and is not implemented for MLD. Upon
+ hearing any MGMDv1 Membership Report (IGMPv1 only), this
+ value is reset to the group membership timer. While this
+
+
+
+
+
+Chesterfield & Haberman Standards Track [Page 19]
+
+RFC 5519 MGMD MIB April 2009
+
+
+ time remaining is non-zero, the local router ignores any
+ MGMDv2 Leave messages (IGMPv2 only) for this group that it
+ receives on this interface."
+
+ ::= { mgmdRouterCacheEntry 8 }
+
+mgmdRouterCacheVersion2HostTimer OBJECT-TYPE
+ SYNTAX TimeTicks
+ MAX-ACCESS read-only
+ STATUS current
+ DESCRIPTION
+ "The time remaining until the local router will assume that
+ there are no longer any MGMD version 2 members on the IP
+ subnet attached to this interface. This entry applies to
+ both IGMP and MLD hosts. Upon hearing any MGMDv2 Membership
+ Report, this value is reset to the group membership timer.
+ Assuming no MGMDv1 hosts have been detected, the local
+ router does not ignore any MGMDv2 Leave messages for this
+ group that it receives on this interface."
+
+ ::= { mgmdRouterCacheEntry 9 }
+
+mgmdRouterCacheSourceFilterMode OBJECT-TYPE
+ SYNTAX INTEGER {include (1),
+ exclude (2) }
+ MAX-ACCESS read-only
+ STATUS current
+ DESCRIPTION
+ "The current cache state, applicable to MGMDv3-compatible
+ nodes. The value indicates whether the state is INCLUDE or
+ EXCLUDE."
+
+ ::= { mgmdRouterCacheEntry 10 }
+
+--
+-- The MGMD Inverse Host interface/cache lookup Table
+--
+
+mgmdInverseHostCacheTable OBJECT-TYPE
+ SYNTAX SEQUENCE OF MgmdInverseHostCacheEntry
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "The (conceptual) table listing the interfaces that are
+ members of a particular group. This is an inverse lookup
+ table for entries in the mgmdHostCacheTable."
+
+ ::= { mgmdMIBObjects 5 }
+
+
+
+Chesterfield & Haberman Standards Track [Page 20]
+
+RFC 5519 MGMD MIB April 2009
+
+
+mgmdInverseHostCacheEntry OBJECT-TYPE
+ SYNTAX MgmdInverseHostCacheEntry
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "An entry (conceptual row) in the
+ mgmdInverseHostCacheTable."
+ INDEX { mgmdInverseHostCacheIfIndex,
+ mgmdInverseHostCacheAddressType,
+ mgmdInverseHostCacheAddress}
+
+ ::= { mgmdInverseHostCacheTable 1 }
+
+MgmdInverseHostCacheEntry ::= SEQUENCE {
+ mgmdInverseHostCacheIfIndex InterfaceIndex,
+ mgmdInverseHostCacheAddressType InetAddressType,
+ mgmdInverseHostCacheAddress InetAddress
+}
+
+mgmdInverseHostCacheIfIndex OBJECT-TYPE
+ SYNTAX InterfaceIndex
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "The interface for which this entry contains information."
+
+ ::= { mgmdInverseHostCacheEntry 1 }
+
+mgmdInverseHostCacheAddressType OBJECT-TYPE
+ SYNTAX InetAddressType { ipv4(1), ipv6(2) }
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "The address type of the mgmdInverseHostCacheTable entry."
+
+ ::= { mgmdInverseHostCacheEntry 2 }
+
+mgmdInverseHostCacheAddress OBJECT-TYPE
+ SYNTAX InetAddress (SIZE(4|16))
+ MAX-ACCESS read-only
+ STATUS current
+ DESCRIPTION
+ "The IP multicast group address for which this entry
+ contains information about an interface. The
+ InetAddressType, e.g., IPv4 or IPv6, is identified by the
+ mgmdInverseHostCacheAddressType variable in the
+ mgmdInverseHostCache table."
+
+
+
+
+Chesterfield & Haberman Standards Track [Page 21]
+
+RFC 5519 MGMD MIB April 2009
+
+
+ ::= { mgmdInverseHostCacheEntry 3 }
+
+--
+-- The MGMD Inverse Router interface/cache lookup Table
+--
+
+mgmdInverseRouterCacheTable OBJECT-TYPE
+ SYNTAX SEQUENCE OF MgmdInverseRouterCacheEntry
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "The (conceptual) table listing the interfaces that
+ are members of a particular group. This is an inverse
+ lookup table for entries in the mgmdRouterCacheTable."
+
+ ::= { mgmdMIBObjects 6 }
+
+mgmdInverseRouterCacheEntry OBJECT-TYPE
+ SYNTAX MgmdInverseRouterCacheEntry
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "An entry (conceptual row) in the
+ mgmdInverseRouterCacheTable."
+ INDEX { mgmdInverseRouterCacheIfIndex,
+ mgmdInverseRouterCacheAddressType,
+ mgmdInverseRouterCacheAddress }
+
+ ::= { mgmdInverseRouterCacheTable 1 }
+
+MgmdInverseRouterCacheEntry ::= SEQUENCE {
+ mgmdInverseRouterCacheIfIndex InterfaceIndex,
+ mgmdInverseRouterCacheAddressType InetAddressType,
+ mgmdInverseRouterCacheAddress InetAddress
+}
+
+mgmdInverseRouterCacheIfIndex OBJECT-TYPE
+ SYNTAX InterfaceIndex
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "The interface for which this entry contains information
+ for an IP multicast group address."
+
+ ::= { mgmdInverseRouterCacheEntry 1 }
+
+mgmdInverseRouterCacheAddressType OBJECT-TYPE
+ SYNTAX InetAddressType { ipv4(1), ipv6(2) }
+
+
+
+Chesterfield & Haberman Standards Track [Page 22]
+
+RFC 5519 MGMD MIB April 2009
+
+
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "The address type of the mgmdInverseRouterCacheTable entry."
+
+ ::= { mgmdInverseRouterCacheEntry 2 }
+
+mgmdInverseRouterCacheAddress OBJECT-TYPE
+ SYNTAX InetAddress (SIZE(4|16))
+ MAX-ACCESS read-only
+ STATUS current
+ DESCRIPTION
+ "The IP multicast group address for which this entry
+ contains information. The InetAddressType, e.g., IPv4 or
+ IPv6, is identified by the mgmdInverseRouterCacheAddressType
+ variable in the mgmdInverseRouterCache table."
+
+ ::= { mgmdInverseRouterCacheEntry 3 }
+
+--
+-- The MGMD Host Source list Table
+--
+
+mgmdHostSrcListTable OBJECT-TYPE
+ SYNTAX SEQUENCE OF MgmdHostSrcListEntry
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "The (conceptual) table listing the Source List entries
+ corresponding to each interface and multicast group pair
+ on a host."
+
+ ::= { mgmdMIBObjects 7 }
+
+mgmdHostSrcListEntry OBJECT-TYPE
+ SYNTAX MgmdHostSrcListEntry
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "An entry (conceptual row) in the mgmdHostSrcListTable."
+ INDEX { mgmdHostSrcListAddressType, mgmdHostSrcListAddress,
+ mgmdHostSrcListIfIndex, mgmdHostSrcListHostAddress }
+
+ ::= { mgmdHostSrcListTable 1 }
+
+MgmdHostSrcListEntry ::= SEQUENCE {
+ mgmdHostSrcListAddressType InetAddressType,
+ mgmdHostSrcListAddress InetAddress,
+
+
+
+Chesterfield & Haberman Standards Track [Page 23]
+
+RFC 5519 MGMD MIB April 2009
+
+
+ mgmdHostSrcListIfIndex InterfaceIndex,
+ mgmdHostSrcListHostAddress InetAddress,
+ mgmdHostSrcListExpire TimeTicks
+}
+
+mgmdHostSrcListAddressType OBJECT-TYPE
+ SYNTAX InetAddressType { ipv4(1), ipv6(2) }
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "The address type of the InetAddress variables in this
+ table. This value applies to the mgmdHostSrcListHostAddress
+ and mgmdHostSrcListAddress entries."
+
+ ::= { mgmdHostSrcListEntry 1 }
+
+mgmdHostSrcListAddress OBJECT-TYPE
+ SYNTAX InetAddress (SIZE(4|16))
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "The IP multicast group address for which this entry
+ contains information."
+
+ ::= { mgmdHostSrcListEntry 2 }
+
+mgmdHostSrcListIfIndex OBJECT-TYPE
+ SYNTAX InterfaceIndex
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "The interface for which this entry contains information
+ for an IP multicast group address."
+
+ ::= { mgmdHostSrcListEntry 3 }
+
+mgmdHostSrcListHostAddress OBJECT-TYPE
+ SYNTAX InetAddress (SIZE(4|16))
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "The host address to which this entry corresponds. The
+ mgmdHostCacheSourceFilterMode value for this group address
+ and interface indicates whether this host address is
+ included or excluded."
+
+ ::= { mgmdHostSrcListEntry 4 }
+
+
+
+
+Chesterfield & Haberman Standards Track [Page 24]
+
+RFC 5519 MGMD MIB April 2009
+
+
+mgmdHostSrcListExpire OBJECT-TYPE
+ SYNTAX TimeTicks
+ MAX-ACCESS read-only
+ STATUS current
+ DESCRIPTION
+ "This value indicates the relevance of the SrcList entry,
+ whereby a non-zero value indicates this is an INCLUDE state
+ value, and a zero value indicates this to be an EXCLUDE
+ state value."
+
+ ::= { mgmdHostSrcListEntry 5 }
+
+--
+-- The MGMD Router Source list Table
+--
+
+mgmdRouterSrcListTable OBJECT-TYPE
+ SYNTAX SEQUENCE OF MgmdRouterSrcListEntry
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "The (conceptual) table listing the Source List entries
+ corresponding to each interface and multicast group pair on
+ a Router."
+
+ ::= { mgmdMIBObjects 8 }
+
+mgmdRouterSrcListEntry OBJECT-TYPE
+ SYNTAX MgmdRouterSrcListEntry
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "An entry (conceptual row) in the mgmdRouterSrcListTable."
+ INDEX { mgmdRouterSrcListAddressType,
+ mgmdRouterSrcListAddress,
+ mgmdRouterSrcListIfIndex,
+ mgmdRouterSrcListHostAddress }
+
+ ::= { mgmdRouterSrcListTable 1 }
+
+MgmdRouterSrcListEntry ::= SEQUENCE {
+ mgmdRouterSrcListAddressType InetAddressType,
+ mgmdRouterSrcListAddress InetAddress,
+ mgmdRouterSrcListIfIndex InterfaceIndex,
+ mgmdRouterSrcListHostAddress InetAddress,
+ mgmdRouterSrcListExpire TimeTicks
+}
+
+
+
+
+Chesterfield & Haberman Standards Track [Page 25]
+
+RFC 5519 MGMD MIB April 2009
+
+
+mgmdRouterSrcListAddressType OBJECT-TYPE
+ SYNTAX InetAddressType { ipv4(1), ipv6(2) }
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "The address type of the InetAddress variables in this
+ table. This value applies to the
+ mgmdRouterSrcListHostAddress and mgmdRouterSrcListAddress
+ entries."
+
+ ::= { mgmdRouterSrcListEntry 1 }
+
+mgmdRouterSrcListAddress OBJECT-TYPE
+ SYNTAX InetAddress (SIZE(4|16))
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "The IP multicast group address for which this entry
+ contains information."
+
+ ::= { mgmdRouterSrcListEntry 2 }
+
+mgmdRouterSrcListIfIndex OBJECT-TYPE
+ SYNTAX InterfaceIndex
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "The interface for which this entry contains information
+ for an IP multicast group address."
+
+ ::= { mgmdRouterSrcListEntry 3 }
+
+mgmdRouterSrcListHostAddress OBJECT-TYPE
+ SYNTAX InetAddress (SIZE(4|16))
+ MAX-ACCESS not-accessible
+ STATUS current
+ DESCRIPTION
+ "The host address to which this entry corresponds. The
+ mgmdRouterCacheSourceFilterMode value for this group address
+ and interface indicates whether this host address is
+ included or excluded."
+
+ ::= { mgmdRouterSrcListEntry 4 }
+
+mgmdRouterSrcListExpire OBJECT-TYPE
+ SYNTAX TimeTicks
+ MAX-ACCESS read-only
+ STATUS current
+
+
+
+Chesterfield & Haberman Standards Track [Page 26]
+
+RFC 5519 MGMD MIB April 2009
+
+
+ DESCRIPTION
+ "This value indicates the relevance of the SrcList entry,
+ whereby a non-zero value indicates this is an INCLUDE state
+ value, and a zero value indicates this to be an EXCLUDE
+ state value."
+
+ ::= { mgmdRouterSrcListEntry 5 }
+
+-- conformance information
+
+mgmdMIBConformance OBJECT IDENTIFIER ::= { mgmdStdMIB 2 }
+mgmdMIBCompliance OBJECT IDENTIFIER ::= { mgmdMIBConformance 1 }
+mgmdMIBGroups OBJECT IDENTIFIER ::= { mgmdMIBConformance 2 }
+
+-- Protocol Version Conformance
+
+-- Read Compliance statement for IGMPv1 Hosts
+-- IGMPv1 only supports the IPv4 Address Family
+
+mgmdIgmpV1HostReadMIBCompliance MODULE-COMPLIANCE
+ STATUS current
+ DESCRIPTION
+ "A read-only compliance statement for hosts running IGMPv1
+ [RFC1112] and implementing the MGMD MIB. IGMPv1 hosts must
+ support the IPv4 address type."
+ MODULE -- this module
+ MANDATORY-GROUPS { mgmdHostBaseMIBGroup }
+
+ OBJECT mgmdHostInterfaceStatus
+ SYNTAX RowStatus {active(1)}
+ MIN-ACCESS read-only
+ DESCRIPTION
+ "Read-write or read-create access is not required and only
+ the value 'active(1)' needs to be supported."
+
+ OBJECT mgmdHostInterfaceVersion
+ SYNTAX Unsigned32 (1)
+ MIN-ACCESS read-only
+ DESCRIPTION
+ "Write access is not required. Only version 1 needs to be
+ supported."
+
+ GROUP mgmdHostExtendedMIBGroup
+ DESCRIPTION
+ "Supporting this group can be especially useful in
+ an environment with a router that does not support the
+ MGMD MIB."
+
+
+
+
+Chesterfield & Haberman Standards Track [Page 27]
+
+RFC 5519 MGMD MIB April 2009
+
+
+ ::= { mgmdMIBCompliance 1 }
+
+-- Read Compliance statement for IGMPv1 Routers
+-- IGMPv1 only supports the IPv4 Address Family
+
+mgmdIgmpV1RouterReadMIBCompliance MODULE-COMPLIANCE
+ STATUS current
+ DESCRIPTION
+ "A read-only compliance statement for routers running
+ IGMPv1 [RFC1112] and implementing the MGMD MIB. IGMPv1
+ routers only support the IPv4 address type.
+
+ Non-accessible index objects that only need IPv4
+ support are:
+
+ OBJECT mgmdRouterCacheAddressType
+ SYNTAX InetAddressType { ipv4(1) }
+
+ OBJECT mgmdRouterCacheAddress
+ SYNTAX InetAddress (SIZE(4))
+
+ OBJECT mgmdRouterInterfaceQuerierType
+ SYNTAX InetAddressType { ipv4(1) }
+
+ OBJECT mgmdInverseRouterCacheAddressType
+ SYNTAX InetAddressType { ipv4(1) }
+ "
+
+ MODULE -- this module
+ MANDATORY-GROUPS { mgmdRouterBaseMIBGroup }
+
+ OBJECT mgmdRouterCacheLastReporter
+ SYNTAX InetAddress (SIZE(4))
+ DESCRIPTION
+ "IGMPv1 routers only support IPv4 addresses."
+
+ OBJECT mgmdRouterInterfaceQuerier
+ SYNTAX InetAddress (SIZE(4))
+ DESCRIPTION
+ "IGMPv1 routers only support IPv4 addresses."
+
+ OBJECT mgmdInverseRouterCacheAddress
+ SYNTAX InetAddress (SIZE(4))
+ DESCRIPTION
+ "IGMPv1 routers only support IPv4 addresses."
+
+ OBJECT mgmdRouterInterfaceVersion
+ SYNTAX Unsigned32 (1)
+
+
+
+Chesterfield & Haberman Standards Track [Page 28]
+
+RFC 5519 MGMD MIB April 2009
+
+
+ MIN-ACCESS read-only
+ DESCRIPTION
+ "Write access is not required. Only version 1 needs to
+ be supported."
+
+ OBJECT mgmdRouterInterfaceStatus
+ SYNTAX RowStatus {active(1)}
+ MIN-ACCESS read-only
+ DESCRIPTION
+ "Read-write or read-create access is not required and only
+ the value 'active(1)' needs to be supported."
+
+ OBJECT mgmdRouterInterfaceQueryInterval
+ MIN-ACCESS read-only
+ DESCRIPTION
+ "Write access is not required."
+
+ ::= { mgmdMIBCompliance 2 }
+
+-- Write Compliance statement for IGMPv1 Routers
+-- IGMPv1 only supports the IPv4 Address Family
+
+mgmdIgmpV1RouterWriteMIBCompliance MODULE-COMPLIANCE
+ STATUS current
+ DESCRIPTION
+ "A read-create compliance statement for routers running
+ IGMPv1 [RFC1112] and implementing the MGMD MIB. IGMPv1
+ routers only support the IPv4 address type.
+
+ Non-accessible index objects that only need IPv4
+ support are:
+
+ OBJECT mgmdRouterCacheAddressType
+ SYNTAX InetAddressType { ipv4(1) }
+
+ OBJECT mgmdRouterCacheAddress
+ SYNTAX InetAddress (SIZE(4))
+
+ OBJECT mgmdRouterInterfaceQuerierType
+ SYNTAX InetAddressType { ipv4(1) }
+
+ OBJECT mgmdInverseRouterCacheAddressType
+ SYNTAX InetAddressType { ipv4(1) }
+ "
+ MODULE -- this module
+ MANDATORY-GROUPS { mgmdRouterBaseMIBGroup }
+
+
+
+
+
+Chesterfield & Haberman Standards Track [Page 29]
+
+RFC 5519 MGMD MIB April 2009
+
+
+ OBJECT mgmdRouterCacheLastReporter
+ SYNTAX InetAddress (SIZE(4))
+ DESCRIPTION
+ "Only IPv4 addresses needed for IGMPv1 router support."
+
+ OBJECT mgmdRouterInterfaceQuerier
+ SYNTAX InetAddress (SIZE(4))
+ DESCRIPTION
+ "Only IPv4 addresses needed for IGMPv1 router support."
+
+ OBJECT mgmdInverseRouterCacheAddress
+ SYNTAX InetAddress (SIZE(4))
+ DESCRIPTION
+ "Only IPv4 addresses needed for IGMPv1 router support."
+
+ OBJECT mgmdRouterInterfaceVersion
+ SYNTAX Unsigned32 (1)
+ DESCRIPTION
+ "Write access is not required. Only version 1 needs to
+ be supported."
+
+ ::= { mgmdMIBCompliance 3 }
+
+-- Read Compliance statement for IGMPv2 and MLDv1 Hosts
+-- IGMPv2 only supports the IPv4 Address Family
+-- MLDv1 only supports the IPv6 Address Family
+
+mgmdIgmpV2MldV1HostReadMIBCompliance MODULE-COMPLIANCE
+ STATUS current
+ DESCRIPTION
+ "A read-only compliance statement for hosts running IGMPv2
+ [RFC2236] or MLDv1 [RFC2710] and implementing the MGMD
+ MIB. IGMPv2 hosts only support the IPv4 address type and
+ MLDv1 hosts only support the IPv6 address type."
+ MODULE -- this module
+ MANDATORY-GROUPS { mgmdHostBaseMIBGroup,
+ mgmdV2HostMIBGroup
+ }
+
+ OBJECT mgmdHostInterfaceStatus
+ SYNTAX RowStatus {active(1)}
+ MIN-ACCESS read-only
+ DESCRIPTION
+ "Read-write or read-create access is not required and only
+ the value 'active(1)' needs to be supported."
+
+ OBJECT mgmdHostInterfaceVersion
+ SYNTAX Unsigned32 (1..2)
+
+
+
+Chesterfield & Haberman Standards Track [Page 30]
+
+RFC 5519 MGMD MIB April 2009
+
+
+ MIN-ACCESS read-only
+ DESCRIPTION
+ "Write access is not required. Only versions 1 and 2 need
+ to be supported."
+
+ GROUP mgmdHostExtendedMIBGroup
+ DESCRIPTION
+ "Supporting this group can be especially useful in an
+ environment with a router that does not support the
+ MGMD MIB."
+
+ ::= { mgmdMIBCompliance 4 }
+
+-- Write Compliance statement for IGMPv2 and MLDv1 Hosts
+-- IGMPv2 only supports the IPv4 Address Family
+-- MLDv1 only supports the IPv6 Address Family
+
+mgmdIgmpV2MldV1HostWriteMIBCompliance MODULE-COMPLIANCE
+ STATUS current
+ DESCRIPTION
+ "A read-create compliance statement for hosts running
+ IGMPv2 [RFC2236] or MLDv1 [RFC2710] and implementing
+ the MGMD MIB. IGMPv2 hosts only support the IPv4 address
+ type and MLDv1 hosts only support the IPv6 address type."
+ MODULE -- this module
+ MANDATORY-GROUPS { mgmdHostBaseMIBGroup,
+ mgmdV2HostMIBGroup }
+ OBJECT mgmdHostInterfaceVersion
+ SYNTAX Unsigned32 (1..2)
+ DESCRIPTION
+ "Only versions 1 and 2 need to be supported."
+
+ ::= { mgmdMIBCompliance 5 }
+
+-- Read Compliance statement for IGMPv2 and MLDv1 Routers
+-- IGMPv2 only supports the IPv4 Address Family
+-- MLDv1 only supports the IPv6 Address Family
+
+mgmdIgmpV2MldV1RouterReadMIBCompliance MODULE-COMPLIANCE
+ STATUS current
+ DESCRIPTION
+ "A read-only compliance statement for routers running
+ IGMPv2 [RFC2236] or MLDv1 [RFC2710] and implementing
+ the MGMD MIB. IGMPv2 routers only support the IPv4
+ address type and MLDv1 routers only support the IPv6
+ address type."
+ MODULE -- this module
+ MANDATORY-GROUPS { mgmdRouterBaseMIBGroup,
+
+
+
+Chesterfield & Haberman Standards Track [Page 31]
+
+RFC 5519 MGMD MIB April 2009
+
+
+ mgmdV2RouterBaseMIBGroup
+ }
+
+ OBJECT mgmdRouterInterfaceLastMemberQueryInterval
+ MIN-ACCESS read-only
+ DESCRIPTION
+ "Write access is not required."
+
+ OBJECT mgmdRouterInterfaceRobustness
+ MIN-ACCESS read-only
+ DESCRIPTION
+ "Write access is not required."
+
+ OBJECT mgmdRouterInterfaceQueryMaxResponseTime
+ MIN-ACCESS read-only
+ DESCRIPTION
+ "Write access is not required."
+
+ OBJECT mgmdRouterInterfaceVersion
+ SYNTAX Unsigned32 (1..2)
+ MIN-ACCESS read-only
+ DESCRIPTION
+ "Write access is not required. Only versions 1 and 2
+ need to be supported."
+
+ OBJECT mgmdRouterInterfaceStatus
+ SYNTAX RowStatus {active(1)}
+ MIN-ACCESS read-only
+ DESCRIPTION
+ "Read-write or read-create access is not required and only
+ the value 'active(1)' needs to be supported."
+
+ OBJECT mgmdRouterInterfaceQueryInterval
+ MIN-ACCESS read-only
+ DESCRIPTION
+ "Write access is not required."
+
+ GROUP mgmdV2ProxyMIBGroup
+ DESCRIPTION
+ "Write access is not required."
+
+ ::= { mgmdMIBCompliance 6 }
+
+-- Write Compliance statement for IGMPv2, IGMPv3, MLDv1, and MLDv2
+-- Routers
+-- IGMPv2 and IGMPv3 only support the IPv4 Address Family
+-- MLDv1 and MLDv2 only support the IPv6 Address Family
+
+
+
+
+Chesterfield & Haberman Standards Track [Page 32]
+
+RFC 5519 MGMD MIB April 2009
+
+
+mgmdIgmpV2V3MldV1V2RouterWriteMIBCompliance MODULE-COMPLIANCE
+ STATUS current
+ DESCRIPTION
+ "A read-create compliance statement for routers running
+ IGMPv2 [RFC2236], IGMPv3 [RFC3376], MLDv1 [RFC2710], or
+ MLDv2 [RFC3810] and implementing the MGMD MIB. IGMPv2 and
+ IGMPv3 routers only support the IPv4 address type, while
+ MLDv1 and MLDv2 routers only support the IPv6 address type."
+ MODULE -- this module
+ MANDATORY-GROUPS { mgmdRouterBaseMIBGroup,
+ mgmdV2RouterBaseMIBGroup
+ }
+
+ GROUP mgmdV2ProxyMIBGroup
+ DESCRIPTION
+ "Read-create access is required."
+
+ ::= { mgmdMIBCompliance 7 }
+
+-- Read Compliance statement for IGMPv2, IGMPv3, MLDv1, and MLDv2 Hosts
+-- IGMPv2 and IGMPv3 only support the IPv4 Address Family
+-- MLDv1 and MLDv2 only support the IPv6 Address Family
+
+mgmdIgmpV3MldV2HostReadMIBCompliance MODULE-COMPLIANCE
+ STATUS current
+ DESCRIPTION
+ "The compliance statement for hosts running IGMPv3
+ [RFC3376] or MLDv2 [RFC3810] and implementing the
+ MGMD MIB. IGMPv3 hosts only support the IPv4 address
+ type and MLDv2 hosts only support the IPv6 address type."
+ MODULE -- this module
+ MANDATORY-GROUPS { mgmdHostBaseMIBGroup,
+ mgmdV2HostMIBGroup,
+ mgmdV3HostMIBGroup
+ }
+
+ OBJECT mgmdHostInterfaceVersion
+ MIN-ACCESS read-only
+ DESCRIPTION
+ "Write access is not required."
+
+ OBJECT mgmdHostInterfaceStatus
+ SYNTAX RowStatus {active(1)}
+ MIN-ACCESS read-only
+ DESCRIPTION
+ "Read-write or read-create access is not required and only
+ the value 'active(1)' needs to be supported."
+
+
+
+
+Chesterfield & Haberman Standards Track [Page 33]
+
+RFC 5519 MGMD MIB April 2009
+
+
+ OBJECT mgmdHostInterfaceVersion3Robustness
+ MIN-ACCESS read-only
+ DESCRIPTION
+ "Write access is not required."
+
+ GROUP mgmdHostExtendedMIBGroup
+ DESCRIPTION
+ "Supporting this group can be especially useful in
+ an environment with a router that does not support the
+ MGMD MIB."
+
+ ::= { mgmdMIBCompliance 8 }
+
+-- Write Compliance statement for IGMPv2, IGMPv3, MLDv1, and MLDv2 Hosts
+-- IGMPv2 and IGMPv3 only support the IPv4 Address Family
+-- MLDv1 and MLDv2 only support the IPv6 Address Family
+
+mgmdIgmpV3MldV2HostWriteMIBCompliance MODULE-COMPLIANCE
+ STATUS current
+ DESCRIPTION
+ "The compliance statement for hosts running IGMPv3
+ [RFC3376] or MLDv2 [RFC3810] and implementing the
+ MGMD MIB. IGMPv3 hosts only support the IPv4 address
+ type and MLDv2 hosts only support the IPv6 address type."
+ MODULE -- this module
+ MANDATORY-GROUPS { mgmdHostBaseMIBGroup,
+ mgmdV2HostMIBGroup,
+
+ mgmdV3HostMIBGroup
+ }
+
+ GROUP mgmdHostExtendedMIBGroup
+ DESCRIPTION
+ "Supporting this group can be especially useful in
+ an environment with a router that does not support the
+ MGMD MIB."
+
+ ::= { mgmdMIBCompliance 9 }
+
+-- Read Compliance statement for IGMPv2, IGMPv3, MLDv1, and MLDv2
+-- Routers
+-- IGMPv2 and IGMPv3 only support the IPv4 Address Family
+-- MLDv1 and MLDv2 only support the IPv6 Address Family
+
+mgmdIgmpV3MldV2RouterReadMIBCompliance MODULE-COMPLIANCE
+ STATUS current
+
+
+
+
+
+Chesterfield & Haberman Standards Track [Page 34]
+
+RFC 5519 MGMD MIB April 2009
+
+
+ DESCRIPTION
+ "A read-only compliance statement for routers running
+ IGMPv3 [RFC3376] or MLDv2 [RFC3810] and implementing
+ the MGMD MIB. IGMPv3 routers only support the IPv4
+ address type and MLDv2 routers only support the IPv6
+ address type."
+ MODULE -- this module
+ MANDATORY-GROUPS { mgmdRouterBaseMIBGroup,
+ mgmdV2RouterBaseMIBGroup,
+ mgmdV3RouterMIBGroup
+ }
+
+ OBJECT mgmdRouterInterfaceLastMemberQueryInterval
+ MIN-ACCESS read-only
+ DESCRIPTION
+ "Write access is not required."
+
+ OBJECT mgmdRouterInterfaceRobustness
+ MIN-ACCESS read-only
+ DESCRIPTION
+ "Write access is not required."
+
+ OBJECT mgmdRouterInterfaceQueryMaxResponseTime
+ MIN-ACCESS read-only
+ DESCRIPTION
+ "Write access is not required."
+
+ OBJECT mgmdRouterInterfaceVersion
+ MIN-ACCESS read-only
+ DESCRIPTION
+ "Write access is not required."
+
+ OBJECT mgmdRouterInterfaceStatus
+ SYNTAX RowStatus {active(1)}
+ MIN-ACCESS read-only
+ DESCRIPTION
+ "Read-write or read-create access is not required and only
+ the value 'active(1)' needs to be supported."
+
+ OBJECT mgmdRouterInterfaceQueryInterval
+ MIN-ACCESS read-only
+ DESCRIPTION
+ "Write access is not required."
+
+ GROUP mgmdV2ProxyMIBGroup
+ DESCRIPTION
+ "Write access is not required."
+
+
+
+
+Chesterfield & Haberman Standards Track [Page 35]
+
+RFC 5519 MGMD MIB April 2009
+
+
+ ::= { mgmdMIBCompliance 10 }
+
+-- units of conformance
+
+mgmdHostBaseMIBGroup OBJECT-GROUP
+ OBJECTS { mgmdHostInterfaceStatus,
+ mgmdHostInterfaceVersion
+ }
+ STATUS current
+ DESCRIPTION
+ "The basic collection of objects providing management of
+ MGMD version 1, 2, or 3 for hosts."
+
+ ::= { mgmdMIBGroups 1 }
+
+mgmdRouterBaseMIBGroup OBJECT-GROUP
+ OBJECTS { mgmdRouterInterfaceStatus,
+ mgmdRouterInterfaceQueryInterval,
+ mgmdRouterCacheUpTime, mgmdRouterCacheExpiryTime,
+ mgmdRouterInterfaceVersion,
+ mgmdRouterInterfaceJoins, mgmdRouterInterfaceGroups,
+ mgmdRouterCacheLastReporter,
+ mgmdRouterInterfaceQuerierUpTime,
+ mgmdRouterInterfaceQuerierExpiryTime,
+ mgmdRouterInterfaceQuerier,
+ mgmdInverseRouterCacheAddress
+ }
+ STATUS current
+ DESCRIPTION
+ "The basic collection of objects providing management of
+ MGMD version 1, 2, or 3 for routers."
+
+ ::= { mgmdMIBGroups 2 }
+
+mgmdV2HostMIBGroup OBJECT-GROUP
+ OBJECTS { mgmdHostInterfaceVersion1QuerierTimer
+ }
+ STATUS current
+ DESCRIPTION
+ "A collection of additional read-only objects for management
+ of IGMP version 2 in hosts for MGMD version 2 compliance."
+
+ ::= { mgmdMIBGroups 3 }
+
+mgmdHostExtendedMIBGroup OBJECT-GROUP
+ OBJECTS { mgmdHostCacheLastReporter, mgmdHostCacheUpTime,
+ mgmdHostInterfaceQuerier, mgmdInverseHostCacheAddress }
+ STATUS current
+
+
+
+Chesterfield & Haberman Standards Track [Page 36]
+
+RFC 5519 MGMD MIB April 2009
+
+
+ DESCRIPTION
+ "A collection of optional objects for MGMD hosts."
+
+ ::= { mgmdMIBGroups 4 }
+
+mgmdV2RouterBaseMIBGroup OBJECT-GROUP
+ OBJECTS { mgmdRouterInterfaceWrongVersionQueries,
+ mgmdRouterInterfaceLastMemberQueryCount,
+ mgmdRouterInterfaceStartupQueryCount,
+ mgmdRouterInterfaceStartupQueryInterval,
+ mgmdRouterCacheVersion1HostTimer,
+ mgmdRouterInterfaceQueryMaxResponseTime,
+ mgmdRouterInterfaceRobustness,
+ mgmdRouterInterfaceLastMemberQueryInterval
+ }
+ STATUS current
+ DESCRIPTION
+ "A collection of additional read-only objects for
+ management of MGMD version 2 in routers."
+
+ ::= { mgmdMIBGroups 5 }
+
+mgmdV2ProxyMIBGroup OBJECT-GROUP
+ OBJECTS { mgmdRouterInterfaceProxyIfIndex }
+ STATUS current
+ DESCRIPTION
+ "A collection of additional read-create objects for
+ management of MGMD proxy devices."
+
+ ::= { mgmdMIBGroups 6 }
+
+mgmdV3HostMIBGroup OBJECT-GROUP
+ OBJECTS { mgmdHostInterfaceVersion2QuerierTimer,
+ mgmdHostCacheSourceFilterMode,
+ mgmdHostInterfaceVersion3Robustness,
+ mgmdHostSrcListExpire
+ }
+ STATUS current
+ DESCRIPTION
+ "A collection of additional objects for
+ management of MGMD version 3 in hosts."
+
+ ::= { mgmdMIBGroups 7 }
+
+mgmdV3RouterMIBGroup OBJECT-GROUP
+ OBJECTS { mgmdRouterCacheSourceFilterMode,
+ mgmdRouterCacheVersion2HostTimer,
+ mgmdRouterCacheExcludeModeExpiryTimer,
+
+
+
+Chesterfield & Haberman Standards Track [Page 37]
+
+RFC 5519 MGMD MIB April 2009
+
+
+ mgmdRouterSrcListExpire
+ }
+ STATUS current
+ DESCRIPTION
+ "A collection of additional read-only objects for
+ management of MGMD version 3 in routers."
+
+ ::= { mgmdMIBGroups 8 }
+
+END
+
+6. Security Considerations
+
+ There are a number of management objects defined in this MIB module
+ with a MAX-ACCESS clause of read-write and/or read-create. Such
+ objects may be considered sensitive or vulnerable in some network
+ environments. The support for SET operations in a non-secure
+ environment without proper protection can have a negative effect on
+ network operations. These are the tables and objects and their
+ sensitivity/vulnerability:
+
+ o The mgmdRouterInterfaceTable provides read-create access to 2
+ values: the mgmdRouterInterfaceStatus and the
+ mgmdRouterInterfaceQueryInterval. The mgmdRouterInterfaceStatus
+ presents a remote user with the ability to enable or disable
+ multicast support on a given router interface, and therefore
+ presents a significant denial-of-service vulnerability. The
+ mgmdRouterInterfaceQueryInterval controls the frequency with which
+ host-query packets are sent, providing less of a vulnerability,
+ but still requiring secure access control.
+
+ o The mgmdRouterCacheTable also provides access to read-create
+ objects. The mgmdRouterInterfaceVersion controls the protocol
+ conformance of an interface, and is therefore a potential denial-
+ of-service vulnerability. The
+ mgmdRouterInterfaceQueryMaxResponseTime, the
+ mgmdRouterInterfaceRobustness, and the
+ mgmdRouterInterfaceLastMemberQueryInterval are all tuning
+ parameters to control the characteristic of the host-query
+ packets. Compromise of these objects can potentially be
+ disruptive to local multicast communication.
+
+ o The mgmdHostInterfaceTable provides a read-create object, the
+ mgmdHostInterfaceVersion3Robustness, which controls the robustness
+ of the interface to packet loss. Disabling robustness in the face
+ of packet loss could cause denial of service to hosts; however, in
+ general this presents a low risk.
+
+
+
+
+Chesterfield & Haberman Standards Track [Page 38]
+
+RFC 5519 MGMD MIB April 2009
+
+
+ SNMP versions prior to SNMPv3 did not include adequate security.
+ Even if the network itself is secure (for example by using IPsec),
+ even then, there is no control as to who on the secure network is
+ allowed to access and GET/SET (read/change/create/delete) the objects
+ in this MIB module.
+
+ It is RECOMMENDED that implementers consider the security features as
+ provided by the SNMPv3 framework (see [RFC3410], section 8),
+ including full support for the SNMPv3 cryptographic mechanisms (for
+ authentication and privacy).
+
+ Further, deployment of SNMP versions prior to SNMPv3 is NOT
+ RECOMMENDED. Instead, it is RECOMMENDED to deploy SNMPv3 and to
+ enable cryptographic security. It is then a customer/operator
+ responsibility to ensure that the SNMP entity giving access to an
+ instance of this MIB module is properly configured to give access to
+ the objects only to those principals (users) that have legitimate
+ rights to indeed GET or SET (change/create/delete) them.
+
+7. IANA Considerations
+
+ This MIB introduces a new term to refer to two existing multicast
+ protocols: Multicast Group Membership Discovery. It encompasses both
+ the IPv4 Multicast discovery protocol, IGMP, and the IPv6 Multicast
+ discovery protocol, MLD, as defined in RFCs 2933 [RFC2933] and 3019
+ [RFC3019], respectively.
+
+ The MIB module in this document uses the following IANA-assigned
+ OBJECT IDENTIFIER value recorded in the SMI Numbers registry:
+
+ Descriptor OBJECT IDENTIFIER value
+ ---------- -----------------------
+ mgmdStdMIB { mib-2 185 }
+
+8. Contributors
+
+ The authors of RFC 2933 [RFC2933] and RFC 3019 [RFC3019] from which
+ this document is derived are:
+
+ Keith McCloghrie
+
+ Dino Farinacci
+
+ Dave Thaler
+
+ Brian Haberman
+
+ Randy Worzella
+
+
+
+Chesterfield & Haberman Standards Track [Page 39]
+
+RFC 5519 MGMD MIB April 2009
+
+
+9. Acknowledgements
+
+ Special thanks to James Lingard, Bill Fenner, and Dave Thaler for
+ detailed comments on the MIB.
+
+ Bert Wijnen deserves special recognition for his exhaustive reviews
+ and constructive feedback on SNMP and SMI issues related to this MIB.
+
+10. References
+
+10.1. Normative References
+
+ [RFC1112] Deering, S., "Host extensions for IP multicasting", STD 5,
+ RFC 1112, August 1989.
+
+ [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
+ Requirement Levels", BCP 14, RFC 2119, March 1997.
+
+ [RFC2236] Fenner, W., "Internet Group Management Protocol, Version
+ 2", RFC 2236, November 1997.
+
+ [RFC2578] McCloghrie, K., Ed., Perkins, D., Ed., and J.
+ Schoenwaelder, Ed., "Structure of Management Information
+ Version 2 (SMIv2)", STD 58, RFC 2578, April 1999.
+
+ [RFC2579] McCloghrie, K., Ed., Perkins, D., Ed., and J.
+ Schoenwaelder, Ed., "Textual Conventions for SMIv2",
+ STD 58, RFC 2579, April 1999.
+
+ [RFC2580] McCloghrie, K., Perkins, D., and J. Schoenwaelder,
+ "Conformance Statements for SMIv2", STD 58, RFC 2580,
+ April 1999.
+
+ [RFC2710] Deering, S., Fenner, W., and B. Haberman, "Multicast
+ Listener Discovery (MLD) for IPv6", RFC 2710,
+ October 1999.
+
+ [RFC2863] McCloghrie, K. and F. Kastenholz, "The Interfaces Group
+ MIB", RFC 2863, June 2000.
+
+ [RFC3376] Cain, B., Deering, S., Kouvelas, I., Fenner, B., and A.
+ Thyagarajan, "Internet Group Management Protocol, Version
+ 3", RFC 3376, October 2002.
+
+ [RFC3810] Vida, R. and L. Costa, "Multicast Listener Discovery
+ Version 2 (MLDv2) for IPv6", RFC 3810, June 2004.
+
+
+
+
+
+Chesterfield & Haberman Standards Track [Page 40]
+
+RFC 5519 MGMD MIB April 2009
+
+
+ [RFC4001] Daniele, M., Haberman, B., Routhier, S., and J.
+ Schoenwaelder, "Textual Conventions for Internet Network
+ Addresses", RFC 4001, February 2005.
+
+10.2. Informative References
+
+ [RFC2933] McCloghrie, K., Farinacci, D., and D. Thaler, "Internet
+ Group Management Protocol MIB", RFC 2933, October 2000.
+
+ [RFC3019] Haberman, B. and R. Worzella, "IP Version 6 Management
+ Information Base for The Multicast Listener Discovery
+ Protocol", RFC 3019, January 2001.
+
+ [RFC3410] Case, J., Mundy, R., Partain, D., and B. Stewart,
+ "Introduction and Applicability Statements for Internet-
+ Standard Management Framework", RFC 3410, December 2002.
+
+ [RFC4605] Fenner, B., He, H., Haberman, B., and H. Sandick,
+ "Internet Group Management Protocol (IGMP) / Multicast
+ Listener Discovery (MLD)-Based Multicast Forwarding
+ ("IGMP/MLD Proxying")", RFC 4605, August 2006.
+
+Authors' Addresses
+
+ Julian Chesterfield
+ University of Cambridge
+ 15 JJ Thompson Avenue
+ Cambridge CB3 0FD
+ UK
+
+ EMail: julian.chesterfield@cl.cam.ac.uk
+
+
+ Brian Haberman (editor)
+ Johns Hopkins University / Applied Physics Laboratory
+ 11100 Johns Hopkins Road
+ Laurel, MD 20723
+ USA
+
+ EMail: brian@innovationslab.net
+
+
+
+
+
+
+
+
+
+
+
+Chesterfield & Haberman Standards Track [Page 41]
+