J. Chesterfield, Editor U. of Cambridge Internet Draft Computer Lab Document: draft-ietf-magma-mgmd-mib-05.txt Expires: January 2006 July 2005 Multicast Group Membership Discovery MIB Status of this Memo By submitting this Internet-Draft, each author represents that any applicable patent or other IPR claims of which he or she is aware have been or will be disclosed, and any of which he or she becomes aware will be disclosed, in accordance with Section 6 of BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet- Drafts. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." The list of current Internet-Drafts can be accessed at http://www.ietf.org/ietf/1id-abstracts.txt. The list of Internet-Draft Shadow Directories can be accessed at http://www.ietf.org/shadow.html. This Internet-Draft will expire on January 16, 2006. Copyright Notice Copyright (C) The Internet Society (2005). 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. Table of Contents 1. Introduction....................................................2 2. The Internet-Standard Management Framework......................2 3. Overview........................................................2 Chesterfield I-D - Expires January 2006 [Page 1] Multicast Group Membership Discovery MIB 4. Definitions.....................................................3 5. Security Considerations........................................26 6. IANA Considerations............................................27 6. Contributors...................................................27 7. Acknowledgements...............................................28 8. Author's Address...............................................28 9. References.....................................................28 10. Full Copyright Statement......................................29 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 [5], version 2 [6] or version 3 [7] and the Multicast Listener Discovery (MLD) protocol version 1 [8] or version 2 [9]. Both protocols provide multicast membership discovery capability, IGMP pertains to IP version 4 clients, and MLD for IP version 6 clients. This version of the MIB supercedes both rfc2933 [10] and rfc3019 [11], incorporating a generic interface for both IGMP and MLD implementations, and 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 [4]. 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 [1], STD 58, RFC 2579 [2] and STD 58, RFC 2580 [3]. 3. Overview This MIB module contains eight tables: 1. the MGMD Host Interface Table which contains one row for each interface on which MGMD 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 Chesterfield I-D - Expires January 2006 [Page 2] Multicast Group Membership Discovery MIB 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. 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 would be scenarios where both terms might apply to a device, e.g. a router which 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 includes or excludes associated with each IP Multicast group on each specific interface. This functionality is only supported in IGMPv3 and MLDv2 capable nodes. 4. 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 "200505170000Z" -- May 17, 2005 ORGANIZATION "IETF MAGMA Working Group." CONTACT-INFO " Julian Chesterfield University of Cambridge, Computer Laboratory, 15 JJ Thompson Avenue, Cambridge, Chesterfield I-D - Expires January 2006 [Page 3] Multicast Group Membership Discovery MIB CB3 0FD UK EMail: magma@ietf.org" REVISION "200507160000Z" -- July 16, 2005 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) The Internet Society (date). This version of this MIB module is part of RFC yyyy; see the RFC itself for full legal notices." -- RFC Ed.: replace yyyy with actual RFC number & remove this note " ::= { mib-2 82 } 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 3 } 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 } Chesterfield I-D - Expires January 2006 [Page 4] Multicast Group Membership Discovery MIB 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 which may be configured in both IPv4 and IPv6 modes." ::= { mgmdHostInterfaceEntry 1 } mgmdHostInterfaceQuerierType OBJECT-TYPE SYNTAX InetAddressType 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 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 Chesterfield I-D - Expires January 2006 [Page 5] Multicast Group Membership Discovery MIB "The maximum version of MGMD which 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 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 MGMDv1 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 MGMDv2 or 3 hosts that are forced to run in v1 for compatibility with v1 hosts or routers present on the interface. This object may only be present when the corresponding value of mgmdHostCacheAddressType is IPv4." 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." DEFVAL { 0 } ::= { mgmdHostInterfaceEntry 7 } -- -- 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 4 } Chesterfield I-D - Expires January 2006 [Page 6] Multicast Group Membership Discovery MIB 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, mgmdRouterInterfaceWrongVersionQueries Counter32, mgmdRouterInterfaceJoins Counter32, mgmdRouterInterfaceProxyIfIndex InterfaceIndexOrZero, mgmdRouterInterfaceGroups Gauge32, mgmdRouterInterfaceRobustness Unsigned32, mgmdRouterInterfaceLastMembQueryIntvl 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 which may be configured in both IPv4 and IPv6 modes." ::= { mgmdRouterInterfaceEntry 1 } mgmdRouterInterfaceQuerierType OBJECT-TYPE SYNTAX InetAddressType 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 Chesterfield I-D - Expires January 2006 [Page 7] Multicast Group Membership Discovery MIB the traffic is considered to be logically separate." ::= { mgmdRouterInterfaceEntry 2 } mgmdRouterInterfaceQuerier OBJECT-TYPE SYNTAX InetAddress 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." ::= { mgmdRouterInterfaceEntry 3 } mgmdRouterInterfaceQueryInterval OBJECT-TYPE SYNTAX Unsigned32 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 which 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 Chesterfield I-D - Expires January 2006 [Page 8] Multicast Group Membership Discovery MIB SYNTAX Unsigned32 (0..255) UNITS "tenths of seconds" MAX-ACCESS read-create STATUS current DESCRIPTION "The maximum query response time advertised in MGMDv2 or v3 queries on this interface." 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 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 Chesterfield I-D - Expires January 2006 [Page 9] Multicast Group Membership Discovery MIB this interface has been added to the Cache Table. This object gives an indication of the amount of IGMP or MLD activity over the lifetime of the row entry." ::= { 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 RouterCache Table." ::= { 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 is robust to (Robustness Variable-1) packet losses." DEFVAL { 2 } ::= { mgmdRouterInterfaceEntry 14 } mgmdRouterInterfaceLastMembQueryIntvl OBJECT-TYPE SYNTAX Unsigned32 (0..255) UNITS "tenths of seconds" MAX-ACCESS read-create STATUS current DESCRIPTION "The Last Member Query Interval is the Max Response Time inserted into Group-Specific Queries sent in response to Chesterfield I-D - Expires January 2006 [Page 10] Multicast Group Membership Discovery MIB 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 } -- -- 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 5 } 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 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." ::= { mgmdHostCacheEntry 1 } Chesterfield I-D - Expires January 2006 [Page 11] Multicast Group Membership Discovery MIB 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 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::0. The InetAddressType, e.g. IPv4 or IPv6, is identified by the mgmdHostCacheAddressType variable in the mgmdHostCache table." ::= { mgmdHostCacheEntry 5 } mgmdHostCacheSourceFilterMode OBJECT-TYPE 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 Chesterfield I-D - Expires January 2006 [Page 12] Multicast Group Membership Discovery MIB list entries in the HostSrcList Table 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 6 } 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, mgmdRouterCacheVersion1HostTimer TimeTicks, mgmdRouterCacheVersion2HostTimer TimeTicks, mgmdRouterCacheSourceFilterMode INTEGER } mgmdRouterCacheAddressType OBJECT-TYPE SYNTAX InetAddressType 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)) Chesterfield I-D - Expires January 2006 [Page 13] Multicast Group Membership Discovery MIB 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 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::0. The InetAddressType, e.g. IPv4 or IPv6, is identified by the mgmdRouterCacheAddressType variable in the mgmdRouterCache table." ::= { 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 "The minimum amount of time remaining before this entry will be aged out. The value must always be greater than 0." ::= { mgmdRouterCacheEntry 6 } mgmdRouterCacheVersion1HostTimer OBJECT-TYPE SYNTAX TimeTicks MAX-ACCESS read-only Chesterfield I-D - Expires January 2006 [Page 14] Multicast Group Membership Discovery MIB 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 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 7 } 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 8 } mgmdRouterCacheSourceFilterMode OBJECT-TYPE 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 RouterSrcList Table for MGMDv3 interfaces." ::= { mgmdRouterCacheEntry 9 } -- -- The MGMD Reverse 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 which Chesterfield I-D - Expires January 2006 [Page 15] Multicast Group Membership Discovery MIB are members of a particular group. This is a reverse lookup table for entries in the mgmdHostCacheTable." ::= { mgmdMIBObjects 7 } 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 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." ::= { mgmdInverseHostCacheEntry 3 } Chesterfield I-D - Expires January 2006 [Page 16] Multicast Group Membership Discovery MIB -- -- The MGMD Reverse 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 which are members of a particular group. This is a reverse lookup table for entries in the mgmdRouterCacheTable." ::= { mgmdMIBObjects 8 } 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." ::= { mgmdInverseRouterCacheEntry 1 } mgmdInverseRouterCacheAddressType OBJECT-TYPE SYNTAX InetAddressType 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 Chesterfield I-D - Expires January 2006 [Page 17] Multicast Group Membership Discovery MIB 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 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 9 } 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, mgmdHostSrcListIfIndex InterfaceIndex, mgmdHostSrcListHostAddress InetAddress } mgmdHostSrcListAddressType OBJECT-TYPE SYNTAX InetAddressType 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)) Chesterfield I-D - Expires January 2006 [Page 18] Multicast Group Membership Discovery MIB 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 read-only 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 } -- -- 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 10 } 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 } Chesterfield I-D - Expires January 2006 [Page 19] Multicast Group Membership Discovery MIB MgmdRouterSrcListEntry ::= SEQUENCE { mgmdRouterSrcListAddressType InetAddressType, mgmdRouterSrcListAddress InetAddress, mgmdRouterSrcListIfIndex InterfaceIndex, mgmdRouterSrcListHostAddress InetAddress } mgmdRouterSrcListAddressType OBJECT-TYPE SYNTAX InetAddressType 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 read-only 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 } -- conformance information Chesterfield I-D - Expires January 2006 [Page 20] Multicast Group Membership Discovery MIB mgmdMIBConformance OBJECT IDENTIFIER ::= { mgmdStdMIB 2 } mgmdMIBCompliance OBJECT IDENTIFIER ::= { mgmdMIBConformance 3 } mgmdMIBGroups OBJECT IDENTIFIER ::= { mgmdMIBConformance 4 } -- Protocol Version Conformance mgmdIgmpV1HostMIBCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The version statement for hosts running IGMPv1, RFC 1112 [5], and implementing the MGMD MIB. MGMDv1 applies to hosts and routers running IGMPv1 only. IGMPv1 hosts must support the IPv4 address type." MODULE -- this module MANDATORY-GROUPS { mgmdHostBaseMIBGroup } GROUPS { mgmdHostOptMIBGroup } OBJECT mgmdHostInterfaceStatus MIN-ACCESS read-only DESCRIPTION "Write access is not required." ::= { mgmdMIBCompliance 1 } mgmdIgmpV1RouterMIBCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The version statement for routers running IGMPv1, RFC 1112 [5], and implementing the MGMD MIB. MGMDv1 applies to hosts and routers running IGMPv1 only. IGMPv1 routers must support the IPv4 address type " MODULE -- this module MANDATORY-GROUPS { mgmdRouterBaseMIBGroup } OBJECT mgmdRouterInterfaceStatus MIN-ACCESS read-only DESCRIPTION "Write access is not required." ::= { mgmdMIBCompliance 2 } mgmdIgmpV2HostMIBCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The version statement for hosts running IGMPv2, RFC 2236 [6], and implementing the MGMD MIB. MGMDv2 applies to hosts and routers running IGMPv2 or MLDv1. IGMPv2 hosts must support the IPv4 address type" MODULE -- this module MANDATORY-GROUPS { mgmdHostBaseMIBGroup , mgmdV2IgmpHostMIBGroup } GROUPS { mgmdV2HostOptMIBGroup } ::= { mgmdMIBCompliance 3 } mgmdIgmpV2RouterMIBCompliance MODULE-COMPLIANCE STATUS current Chesterfield I-D - Expires January 2006 [Page 21] Multicast Group Membership Discovery MIB DESCRIPTION "The version statement for routers running IGMPv2, RFC 2236 [6], and implementing the MGMD MIB. MGMDv2 applies to hosts and routers running IGMPv2 or MLDv1. IGMPv2 routers must support the IPv4 address type " MODULE -- this module MANDATORY-GROUPS { mgmdRouterBaseMIBGroup, mgmdV2RouterBaseMIBGroup, mgmdV2IgmpRouterMIBGroup } GROUPS { mgmdV2RouterOptMIBGroup, mgmdV2ProxyMIBGroup } OBJECT mgmdRouterInterfaceStatus MIN-ACCESS read-only DESCRIPTION "Write access is not required." ::= { mgmdMIBCompliance 4 } mgmdMldV1HostMIBCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The version statement for hosts running MLDv1, RFC 2710 [8], and implementing the MGMD MIB. MGMDv2 applies to hosts and routers running IGMPv2 or MLDv1. MLDv1 hosts must support the IPv6 address type." MODULE -- this module MANDATORY-GROUPS { mgmdHostBaseMIBGroup } GROUPS { mgmdV2HostOptMIBGroup } ::= { mgmdMIBCompliance 5 } mgmdMldV1RouterMIBCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The version statement for routers running MLDv1, RFC 2710 [8], and implementing the MGMD MIB. MGMDv2 applies to hosts and routers running IGMPv2 or MLDv1. MLDv1 routers must support the IPv6 address type." MODULE -- this module MANDATORY-GROUPS { mgmdRouterBaseMIBGroup, mgmdV2RouterBaseMIBGroup } GROUPS { mgmdV2RouterOptMIBGroup, mgmdV2ProxyMIBGroup } OBJECT mgmdRouterInterfaceStatus MIN-ACCESS read-only DESCRIPTION "Write access is not required." ::= { mgmdMIBCompliance 6 } mgmdIgmpV3HostMIBCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The version statement for hosts running IGMPv3, RFC 3376 [7], and implementing the MGMD MIB. MGMDv3 applies to hosts Chesterfield I-D - Expires January 2006 [Page 22] Multicast Group Membership Discovery MIB and routers running IGMPv3 or MLDv2. IGMPv3 hosts must support the IPv4 address type." MODULE -- this module MANDATORY-GROUPS { mgmdHostBaseMIBGroup, mgmdV2IgmpHostMIBGroup, mgmdV3HostMIBGroup } OBJECT mgmdHostInterfaceStatus MIN-ACCESS read-only DESCRIPTION "Write access is not required." ::= { mgmdMIBCompliance 7 } mgmdIgmpV3RouterMIBCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The version statement for routers running IGMPv3, RFC 3376 [7], and implementing the MGMD MIB. MGMDv3 applies to hosts and routers running IGMPv3 or MLDv2. IGMPv3 routers must support the IPv4 address type." MODULE -- this module MANDATORY-GROUPS { mgmdRouterBaseMIBGroup, mgmdV2RouterBaseMIBGroup, mgmdV2IgmpRouterMIBGroup, mgmdV3RouterMIBGroup } OBJECT mgmdRouterInterfaceStatus MIN-ACCESS read-only DESCRIPTION "Write access is not required." ::= { mgmdMIBCompliance 8 } mgmdMldV2HostMIBCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The version statement for hosts running MLDv2 [9] and implementing the MGMD MIB. MGMDv3 applies to hosts and routers running IGMPv3 or MLDv2. MLDv2 hosts must support the IPv6 address type." MODULE -- this module MANDATORY-GROUPS { mgmdHostBaseMIBGroup, mgmdV3HostMIBGroup } OBJECT mgmdHostInterfaceStatus MIN-ACCESS read-only DESCRIPTION "Write access is not required." ::= { mgmdMIBCompliance 9 } mgmdMldV2RouterMIBCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The version statement for routers running MLDv2 [9] and Chesterfield I-D - Expires January 2006 [Page 23] Multicast Group Membership Discovery MIB implementing the MGMD MIB. MGMDv3 applies to hosts and routers running IGMPv3 or MLDv2. MLDv2 routers must support the IPv6 address type." MODULE -- this module MANDATORY-GROUPS { mgmdRouterBaseMIBGroup, mgmdV2RouterBaseMIBGroup, mgmdV3RouterMIBGroup } OBJECT mgmdRouterInterfaceStatus MIN-ACCESS read-only DESCRIPTION "Write access is not required." ::= { mgmdMIBCompliance 10 } -- units of conformance mgmdHostBaseMIBGroup OBJECT-GROUP OBJECTS { mgmdHostInterfaceStatus } 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, mgmdRouterCacheUpTime, mgmdRouterCacheExpiryTime, mgmdRouterInterfaceJoins, mgmdRouterInterfaceGroups, mgmdRouterCacheLastReporter, mgmdRouterInterfaceQuerierUpTime, mgmdRouterInterfaceQuerierExpiryTime, mgmdRouterInterfaceQueryInterval } STATUS current DESCRIPTION "The basic collection of objects providing management of MGMD version 1, 2 or 3 for Routers." ::= { mgmdMIBGroups 2 } mgmdV2IgmpHostMIBGroup OBJECT-GROUP OBJECTS { mgmdHostInterfaceVersion, mgmdHostInterfaceVersion1QuerierTimer } STATUS current DESCRIPTION "A collection of additional objects for management of IGMP version 2 in hosts for MGMD version 2 compliance." ::= { mgmdMIBGroups 3 } mgmdHostOptMIBGroup OBJECT-GROUP OBJECTS { mgmdHostCacheLastReporter, mgmdHostCacheUpTime, Chesterfield I-D - Expires January 2006 [Page 24] Multicast Group Membership Discovery MIB mgmdHostInterfaceQuerier } STATUS current DESCRIPTION "A collection of optional objects for MGMD hosts. Supporting this group can be especially useful in an environment with a router which does not support the MGMD MIB." ::= { mgmdMIBGroups 4 } mgmdV2HostOptMIBGroup OBJECT-GROUP OBJECTS { mgmdInverseHostCacheAddress } STATUS current DESCRIPTION "An additional optional object for management of MGMD version 2 in hosts." ::= { mgmdMIBGroups 5 } mgmdV2RouterBaseMIBGroup OBJECT-GROUP OBJECTS { mgmdRouterInterfaceVersion, mgmdRouterInterfaceQuerier, mgmdRouterInterfaceQueryMaxResponseTime, mgmdRouterInterfaceRobustness, mgmdRouterInterfaceWrongVersionQueries, mgmdRouterInterfaceLastMembQueryIntvl } STATUS current DESCRIPTION "A collection of additional objects for management of MGMD version 2 in routers." ::= { mgmdMIBGroups 6 } mgmdV2IgmpRouterMIBGroup OBJECT-GROUP OBJECTS { mgmdRouterCacheVersion1HostTimer } STATUS current DESCRIPTION "A collection of further objects required by IGMPv2 routers for MGMD version 2 compliance. " ::= { mgmdMIBGroups 7 } mgmdV2ProxyMIBGroup OBJECT-GROUP OBJECTS { mgmdRouterInterfaceProxyIfIndex } STATUS current DESCRIPTION "A collection of additional objects for management of MGMD proxy devices." ::= { mgmdMIBGroups 8 } mgmdV2RouterOptMIBGroup OBJECT-GROUP OBJECTS { mgmdInverseRouterCacheAddress } STATUS current DESCRIPTION "An additional optional object for management of MGMD version 2 in routers." ::= { mgmdMIBGroups 9 } Chesterfield I-D - Expires January 2006 [Page 25] Multicast Group Membership Discovery MIB mgmdV3HostMIBGroup OBJECT-GROUP OBJECTS { mgmdHostInterfaceVersion2QuerierTimer, mgmdHostCacheSourceFilterMode, mgmdHostSrcListHostAddress } STATUS current DESCRIPTION "A collection of additional objects for management of MGMD version 3 in hosts." ::= { mgmdMIBGroups 10 } mgmdV3RouterMIBGroup OBJECT-GROUP OBJECTS { mgmdRouterCacheSourceFilterMode, mgmdRouterCacheVersion2HostTimer, mgmdRouterSrcListHostAddress } STATUS current DESCRIPTION "A collection of additional objects for management of MGMD version 3 in routers." ::= { mgmdMIBGroups 11 } END 5. Security Considerations This MIB contains readable objects whose values provide information related to multicast sessions. Some of these objects could contain sensitive information. In particular, the mgmdCacheLastReporter object can be used to identify machines which are listening to a given group address. There are also a number of objects that have a MAX-ACCESS clause of read-write and/or read- create, which allow an administrator to configure MGMD state in the router. While unauthorized access to the readable objects is relatively innocuous, unauthorized access to the write-able objects could cause a denial of service. Hence, the support for SET operations in a non-secure environment without proper protection can have a negative effect on network operations. SNMPv1 by itself is such an insecure environment. 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 SET (change/create/delete) the objects in this MIB. It is recommended that the implementers consider the security features as provided by the SNMPv3 framework. Specifically, the use of the User-based Security Model RFC 2574 [12] and the View-based Access Control Model RFC 2575 [15] is recommended. Chesterfield I-D - Expires January 2006 [Page 26] Multicast Group Membership Discovery MIB It is then a customer/user responsibility to ensure that the SNMP entity giving access to this MIB, is properly configured to give access to those objects only to those principals (users) that have legitimate rights to access them. 6. IANA Considerations This MIB introduces a new protocol description, Multicast Group Membership Discovery, that encompasses both the IPv4 Multicast discovery protocol, IGMP, and the IPv6 Multicast discovery protocol, MLD. As such it requires the allocation of a new OID within the MIB hierarchy. MGMD is a superset of the objects defined in RFCs 2933 and 3019 and therefore there is no new protocol definition involved in this specification. 6. Contributors The authors of RFC 2933 and RFC 3019 from which this document is derived are: Keith McCloghrie cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 Phone: 408 526 5260 EMail: kzm@cisco.com Dino Farinacci Procket Networks 3850 North First Street San Jose, CA 95134 Phone: 408-954-7909 Email: dino@procket.com Dave Thaler Microsoft Corporation One Microsoft Way Redmond, WA 48105-6399 Phone: 425 703 8835 EMail: dthaler@microsoft.com Brian Haberman Nortel Networks 4309 Emperor Blvd. Suite 200 Chesterfield I-D - Expires January 2006 [Page 27] Multicast Group Membership Discovery MIB Durham, NC 27703 USA Phone: 919-992-4439 EMail: haberman@nortelnetworks.com Randy Worzella IBM Corporation 800 Park Office Drive Research Triangle Park, NC 27709 USA Phone: 919-254-2202 EMail: worzella@us.ibm.com 7. Acknowledgements Special thanks to James Lingard for detailed comments on the draft, also to Bill Fenner, Brian Haberman and Dave Thaler for feedback and suggestions regarding the MIB. 8. Author's Address Julian Chesterfield University of Cambridge, Computer Laboratory, 15 JJ Thompson Avenue, Cambridge, CB3 0FD UK 9. References [1] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose, M. and S. Waldbusser, "Structure of Management Information Version 2 (SMIv2)", STD 58, RFC 2578, April 1999. [2] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose, M. and S. Waldbusser, "Textual Conventions for SMIv2", STD 58, RFC 2579, April 1999. [3] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose, M. and S. Waldbusser, "Conformance Statements for SMIv2", STD 58, RFC 2580, April 1999. [4] Case, J., Mundy, R., Partain, D. and B. Stewart, "Introduction and Applicability Statements for Internet- Standard Management Framework", RFC 3410, December 2002. Chesterfield I-D - Expires January 2006 [Page 28] Multicast Group Membership Discovery MIB [5] Deering, S., "Host Extensions for IP Multicasting", STD 5, RFC 1112, August 1989. [6] Fenner, W., "Internet Group Management Protocol, Version 2", RFC 2236, November 1997. [7] Cain, B., Deering, S., Fenner, W., Kouvelas, I., Thyagarajan, A., "Internet Group Management Protocol, Version 3", RFC 3376, Oct 2002. [8] Deering, S., Fenner, W., Haberman, B., "Multicast Listener Discovery for IPv6", RFC 2710", October 1999. [9] Vida, R., Costa, L., "Multicast Listener Discovery Version 2 (MLDv2) for IPv6", . [10] McCloghrie, K., Farinacci, D., Thaler, D., "Internet Group Management Protocol MIB", RFC 2933, October 2000. [11] Haberman, B., Worzella, R., "IP Version 6 Management Information Base for The Multicast Listener Discovery Protocol, RFC 3019", January 2001. 10. Full Copyright Statement Copyright (C) The Internet Society (2004). This document is subject to the rights, licenses and restrictions contained in BCP 78, and except as set forth therein, the authors retain all their rights. This document and the information contained herein are provided on an "AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY AND THE INTERNET ENGINEERING TASK FORCE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Intellectual Property Rights Notice The IETF takes no position regarding the validity or scope of any Intellectual Property Rights or other rights that might be claimed to pertain to the implementation or use of the technology described in this document or the extent to which any license under such rights might or might not be available; nor does it represent that it has made any independent effort to identify any such rights. Information on the procedures with respect to rights in RFC documents can be found in BCP 78 and BCP 79. Copies of IPR disclosures made to the IETF Secretariat and any assurances of licenses to be made available, or the result of an attempt made to obtain a general license or permission for the use of such Chesterfield I-D - Expires January 2006 [Page 29] Multicast Group Membership Discovery MIB proprietary rights by implementers or users of this specification can be obtained from the IETF on-line IPR repository at http://www.ietf.org/ipr. The IETF invites any interested party to bring to its attention any copyrights, patents or patent applications, or other proprietary rights that may cover technology that may be required to implement this standard. Please address the information to the IETF at ietf- ipr@ietf.org. Chesterfield I-D - Expires January 2006 [Page 30]