Pim-Ssm | Brocade Communications Systems IPMC5000PEF specification

IPv4 Multicast Protocols

Feature	ICX 6430	ICX 6450	FCX	ICX 6610	ICX 6650	FSX 800	ICX 7750
						FSX 1600

PMRI	No	08.0.011	08.0.01	08.0.01	08.0.01	08.0.01	08.0.10
PIM-SSM	No	08.0.011	08.0.01	08.0.01	08.0.01	08.0.01	08.0.10
Multi-VRF support	No	08.0.011	08.0.01	08.0.01	08.0.01	08.0.01	08.0.10
IP Multicast Boundaries	No	08.0.011	08.0.01	08.0.01	08.0.01	08.0.01	08.0.10
PIM Dense	No	08.0.011	08.0.01	08.0.01	08.0.01	08.0.01	08.0.10
PIM Sparse	No	08.0.011	08.0.01	08.0.01	08.0.01	08.0.01	08.0.10
Multicast Source Discovery	No	08.0.011	08.0.01	08.0.01	08.0.01	08.0.01	08.0.10
Protocol (MSDP)

MSDP Mesh Groups	No	08.0.011	08.0.01	08.0.01	08.0.01	08.0.01	08.0.10
MSDP Anycast RP	No	08.0.011	08.0.01	08.0.01	08.0.01	08.0.01	08.0.10
PIM Anycast RP	No	08.0.011	08.0.01	08.0.01	08.0.01	08.0.01	08.0.10
Concurrent support for	No	08.0.011	08.0.01	08.0.01	08.0.01	08.0.01	08.0.10
Multicast Routing and
Snooping

Modifying the Prune Wait	No	08.0.011	08.0.01	08.0.01	08.0.01	08.0.01	08.0.10
Timer

IGMP Proxy	No	08.0.01	08.0.01	08.0.01	08.0.01	08.0.01	08.0.10

Hardware replication	No	08.0.011	08.0.01	08.0.01	08.0.01	08.0.01	08.0.10
resource sharing

IPv4 ACLs for rendezvous	No	08.0.011	08.0.01	08.0.01	08.0.01	08.0.01	08.0.10
points (RPs)

IPv4 Multicast Non-stop	No	08.0.011	08.0.01	08.0.01	No	08.0.01	08.0.10
routing (NSR) support for
PIM-SM,SSM, and Anycast
RP

Static mroute support	No	08.0.10a1	08.0.10a	08.0.10a	08.0.10a	08.0.10a	08.0.10a
Static mroute support

This chapter describes how to configure devices for the following IP multicast protocol and versions:

•Internet Group Management Protocol (IGMP) V1 and V2

•Protocol Independent Multicast Dense mode (PIM DM) V1 (draft-ietf-pim-dm-05) and V2 (draft- ietf-pim-v2-dm-03)

•PIM Sparse mode (PIM SM) V2 (RFC 2362)

NOTE

Each multicast protocol uses IGMP. IGMP is automatically enabled on an interface when you configure PIM, and is disabled on the interface if you disable PIM.

70	FastIron Ethernet Switch IP Multicast Configuration Guide
	53-1003085-02

Image 72

Brocade Communications Systems IPMC5000PEF manual IPv4 Multicast Protocols, Pim-Ssm

Contents

FastIron Ethernet Switch IP Multicast Page Contents Enabling Igmp V3 membership tracking and fast leave for Vlan Defining the maximum number of PIM cache entries Configuring Multicast Source Discovery Protocol Msdp Configuring MsdpConfiguring Msdp mesh groups Configuring Msdp mesh group PIM Anycast RP 194 Configuring PIM Anycast RP 147196 Enabling MLDv2 197 Clearing IPv6 MLD traffic 206 209 Command syntax conventions Document conventionsText formatting conventions Convention Brocade resources Getting technical helpBrocade resources Document feedback Document feedback Introduction What’s new in this documentSupported hardware Support is added for static mroute How command information is presented in this guide How command information is presented in this guide Supported IPv4 Multicast Traffic Reduction Igmp snooping overview Queriers and non-queriers Queriers and non-queriers VLAN-specific configuration VLAN-specific configurationTracking and fast leave Forwarding mechanism in hardware Hardware resources for Igmp and PIM-SM snooping Following notes apply to all devices Igmp snooping configuration Igmp snooping configuration Igmp snooping mcache entries and group addresses Igmp snooping mcache entries and group addressesSyntax no system-max igmp-snoop-mcache num Setting the maximum number of Igmp group addresses Configuring the Igmp modeConfiguration notes for Layer 3 devices Setting the maximum number of Igmp group addresses Configuring the Igmp version Configuring the global Igmp modeConfiguring the Igmp mode for a Vlan Configuring the global Igmp version Configuring static groups to specific ports Configuring the Igmp version for individual ports in a VlanConfiguring the Igmp version for individual ports in a Vlan Information specific to FCX and ICX devices Modifying the query interval active Igmp snooping mode only Disabling Igmp snooping on a VlanModifying the age interval for group membership entries Modifying the maximum response time Configuring report control Configuring report controlModifying the multicast cache age time Enabling or disabling error and warning messages Configuring static router portsEnabling or disabling error and warning messages Turning off static group proxy Enabling fast leave for Igmp Enabling fast convergenceEnabling fast leave for Igmp Syntax no multicast tracking Igmp snooping show commands Displaying the Igmp snooping configurationIgmp snooping show commands Syntax multicast fast-convergence Displaying Igmp snooping errors Displaying Igmp snooping errorsSyntax show ip multicast error Displaying Igmp group information Displaying Igmp snooping mcache information Displaying Igmp snooping mcache informationSyntax show ip multicast group group-addressdetail tracking Displaying software resource usage for VLANs Displaying software resource usage for VLANsSyntax show ip multicast mcache Syntax show ip multicast resource Displaying the status of Igmp snooping traffic Displaying the status of Igmp snooping trafficSyntax show ip multicast traffic Displaying querier information Displaying querier information Displaying the active Interface with other querier present Displaying the passive interface with other querier present Displaying the passive interface with other querier present Clear commands for Igmp snooping Clear commands for Igmp snoopingClearing the Igmp mcache Clearing the mcache on a specific Vlan PIM SM traffic snooping overview Clearing Igmp counters on VLANsApplication examples of PIM SM traffic snooping Clearing Igmp counters on VLANs IPv4 Multicast Traffic Reduction Configuration notes and limitations for PIM SM snooping Configuration notes and limitations for PIM SM snooping PIM SM snooping configuration PIM SM snooping configurationEnabling or disabling PIM SM snooping PIM SM snooping show commands Enabling PIM SM snooping on a VlanDisabling PIM SM snooping on a Vlan Displaying PIM SM snooping information Displaying PIM SM snooping information on a Layer 2 switch Displaying PIM SM snooping information on a Layer 2 switchSyntax show ip multicast pimsm-snooping vlan-id Syntax show ip multicast pimsm-snooping vlan vlan-id Multicast Group IP address of the multicast group IPv4 Multicast Traffic Reduction IPv6 Multicast Traffic Reduction MLD snooping overview FastIron Ethernet Switch IP Multicast Configuration Guide Hardware resources for MLD and PIMv6 SM snooping Forwarding mechanism in hardware MLD snooping configuration notes and feature limitations MLD snooping configuration notes and feature limitations MLD snooping-enabled queriers and non-queriers MLD snooping-enabled queriers and non-queriers MLD snooping configuration MLD and Vlan configurationMLD and Vlan configuration MLDv1 with MLDv2 Configuring the hardware and software resource limits Configuring the global MLD modeConfiguring the hardware and software resource limits Modifying the query interval active MLD snooping mode only Configuring the global MLD versionModifying the age interval Modifying the age interval Modifying the multicast cache aging time Syntax no ipv6 multicast report-controlSyntax no ipv6 multicast leave-wait-time num Syntax no ipv6 multicast mcache-age num Disabling error and warning messages Configuring the MLD mode for a VlanConfiguring the MLD version for the Vlan Disabling error and warning messages Configuring the MLD version for individual ports Configuring static groupsConfiguring the MLD version for individual ports Disabling static group proxy Configuring fast leave for MLDv1 By default, MLD snooping proxy is enabledSyntax no multicast6 proxy-off Syntax no multicast6 tracking Displaying MLD snooping error information Syntax show ipv6 multicast errorDisplaying MLD snooping information Enabling fast convergence Displaying MLD group information Displaying MLD group information Displaying MLD snooping mcache information Displaying MLD snooping mcache informationSyntax show ipv6 multicast mcache System-max mld-snoop-mcache command IPv6 Multicast Traffic ReductionSyntax show ipv6 multicast resource Displaying status of MLD snooping traffic Displaying status of MLD snooping trafficSyntax show ipv6 multicast traffic Displaying MLD snooping information by Vlan Displaying MLD snooping information by VlanSyntax show ipv6 multicast vlan vlan-id Clearing MLD snooping counters and mcache Clearing MLD counters on all VLANsClearing the mcache on all VLANs Clearing traffic counters on a specific Vlan PIM6 SM traffic snooping overview Application examples of PIM6 SM traffic snooping IPv6 Multicast Traffic Reduction Configuration notes and limitations for PIM6 SM snooping Configuration notes and limitations for PIM6 SM snooping PIM6 SM snooping configuration PIM6 SM snooping configurationEnabling or disabling PIM6 SM snooping PIM6 SM snooping show commands Enabling PIM6 SM snooping on a VlanDisabling PIM6 SM snooping on a Vlan Displaying PIM6 SM snooping information Displaying PIM6 SM snooping for a Vlan Displaying PIM6 SM snooping for a VlanSyntax show ipv6 multicast pimsm-snooping vlan vlan-id Displaying PIM6 SM snooping for a Vlan Supported IPv4 Multicast Protocols features A mixed stack only IPv4 Multicast Protocols PIM-SSM System-max command changes Overview of IP multicastingSupport for Multicast Multi-VRF Multicast terms Show and clear command support Show and clear command supportChanging global IP multicast parameters Concurrent support for multicast routing and snooping Defining the maximum number of PIM cache entries Defining the maximum number of Igmp group addressesDefining the maximum number of PIM cache entries Changing Igmp V1 and V2 parameters Modifying Igmp V1 and V2 query interval periodModifying Igmp V1 and V2 membership time Modifying Igmp V1 and V2 maximum response time Adding an interface to a multicast group Security enhancement for IgmpSecurity enhancement for Igmp Syntaxno ip igmp max-response-time num Configuration considerations Configuring multicast non-stop routingMulticast non-stop routing Multicast non-stop routing PIM v4 is configured PIM v6 is configuredDisplaying the multicast NSR status Displaying the multicast NSR status Passive multicast route insertion Passive multicast route insertion Configuring Pmri Configuring PmriSyntax no hardware-drop-disable IP multicast boundaries Configuring multicast boundaries Displaying multicast boundariesStandard ACL to permit multicast traffic Extended ACL to deny multicast traffic PIM Dense PIM Dense Initiating PIM multicasts on a network Pruning a multicast treeInitiating PIM multicasts on a network Pruning leaf nodes from a multicast tree Grafts to a multicast tree Grafts to a multicast tree Configuring PIM DM PIM DM versionsEnabling PIM on the device and an interface Globally enabling and disabling PIM Modifying neighbor timeout Enabling a PIM versionModifying PIM global parameters Modifying PIM global parameters Modifying hello timer Modifying prune timerModifying the prune wait timer Modifying graft retransmit timer Modifying inactivity timerFailover time in a multi-path topology Selection of shortest path back to source Configuring a DR priority Displaying basic PIM Dense configuration informationConfiguring a DR priority Syntax no ip pim dr-priority priority-value Displaying all multicast cache entries in a pruned state Displaying all multicast cache entriesDisplaying all multicast cache entries in a pruned state Syntax show ip pim vrf vrf-name prune IPv4 Multicast Protocols Blocked Filter L2 FID Displaying information across VRFs Displaying information across VRFs PIM Sparse PIM Sparse device typesPIM Sparse Configuring PIM Sparse RP paths and SPT pathsRP paths and SPT paths Configuring global PIM Sparse parameters Current limitationsEnabling PIM Sparse for a specified VRF Current limitations Configuring PIM interface parameters Configuring BSRsConfiguring PIM interface parameters Syntax no ip pim-sparse Configuring RPs Configuring RPsSyntax no rp-candidate add group-addrmask-bits Statically specifying the RP Syntax no rp-candidate delete group-addrmask-bitsSyntax clear ip pim vrf vrf-name rp-map Syntax no rp-address ip-addr Configuration considerations Configuring an ACL based RP assignmentACL based RP assignment Displaying the static RP PIM Passive Multicast Outgoing Interface OIF list optimizationPIM Passive Syntax no ip pim passive Displaying system values Displaying PIM resourcesDisplaying system values Syntax show ip pim all-vrf vrf vrf-name resource Syntax show ip pim all-vrf vrf vrf-name hw-resource Displaying basic PIM Sparse configuration information Output from the show ip pim all-vrf hw-resource commandSyntax show ip pim vrf vrf-name sparse Output of the show ip pim sparse command This field Displays Global PIM Sparse mode settings Output of the show ip pim sparse command Displaying a list of multicast groupsDisplaying a list of multicast groups Output from the show ip pim group command Displaying BSR informationDisplaying BSR information Syntax show ip pim vrf vrf-name group Output from the show ip pim bsr command Syntax show ip pim vrf vrf-name bsr Output from the show ip pim bsr command Displaying candidate RP informationDisplaying candidate RP information This system is not a Candidate-RP Output from the show ip pim rp-candidate command Displaying RP-to-group mappingsDisplaying RP-to-group mappings Syntax show ip pim vrf vrf-name rp-map Output of the show ip pim rp-map command Displaying RP Information for a PIM Sparse groupDisplaying the RP set list Displaying RP Information for a PIM Sparse group Displaying multicast neighbor information Displaying multicast neighbor informationSyntax show ip pim vrf vrf-name rp-set Syntax show ip pim vrf vrf-name neighbor Displaying the PIM multicast cache Displaying the PIM multicast cache IPv4 Multicast Protocols Ingress Vlan Displaying the PIM multicast cache for DIT Displaying the PIM multicast cache for DIT Clearing the PIM forwarding cache Displaying PIM traffic statisticsClearing the PIM forwarding cache Syntax show ip pim vrf vrf-name mcache dit-idx dit Syntax show ip pim vrf vrf-name traffic join-prune rx tx Clearing the PIM message counters Clearing the PIM message countersSyntax clear ip pim vrf vrf-name traffic Configuring Multicast Source Discovery Protocol Msdp Displaying PIM RPFDisplaying PIM RPF Syntax show ip pim vrf vrf-name rpf ip-address Peer Reverse Path Forwarding RPF flooding Source Active cachingPeer Reverse Path Forwarding RPF flooding Configuring Msdp Configuring Msdp peersConfiguring Msdp Enabling Msdp Disabling an Msdp peer Designating the interface IP address as the RP IP addressDisabling an Msdp peer Syntax no msdp-peer ip-addrshutdown Filtering Msdp source-group pairs Filtering incoming and outgoing Source-Active messagesExample Filtering Msdp source-group pairs IPv4 Multicast Protocols Filtering advertised Source-Active messages Displaying Msdp informationDisplaying summary information Filtering advertised Source-Active messages Displaying peer information Syntax show ip msdp summary Syntax show ip msdp vrf vrf-name peer Msdp peer information TCP Statistics IPv4 Multicast Protocols Displaying Source Active cache information Displaying Msdp RPF-Peer Displaying Msdp RPF-PeerSyntax show ip msdp vrf vrf-name rpf-peer ip-addr Displaying Msdp Peer Displaying Msdp VRF RPF-PeerClearing Msdp information Clearing peer information Configuring Msdp mesh groups Clearing the source active cacheClearing the source active cache for a VRF Clearing Msdp statistics Configuring Msdp mesh group Configuring Msdp mesh group Configuring Msdp Anycast RP Msdp Anycast RPMsdp Anycast RP Syntax no mesh-group group-namepeer-address Example Example RP 1 configuration RP 2 configuration PIMR1 configuration Configuring PIM Anycast RP PIMR2 configurationPIM Anycast RP PIM Anycast RP Displaying information for a PIM Anycast RP interface Displaying information for a PIM Anycast RP interfaceSyntax show ip pim vrf vrf-name anycast-rp Static multicast routes Static multicast routes Igmp proxy configuration notes Configuring Igmp ProxyIgmp Proxy Igmp proxy limitations Filtering groups in proxy report messages Displaying Igmp Proxy informationFiltering groups in proxy report messages Output of show ip igmp proxy Use the show ip igmp proxy summaryOutput of show ip igmp proxy summary Syntax show ip igmp proxy stats Igmp Default Igmp version Default Igmp versionCompatibility with Igmp V1 Enabling the Igmp version per interface setting Globally enabling the Igmp versionGlobally enabling the Igmp version Syntax no ip igmp version version-number Enabling membership tracking and fast leave Enabling membership tracking and fast leaveSyntax no ip igmp tracking Setting the query interval Or this commandCreating a static Igmp group Creating a static Igmp group Setting the group membership time Setting the maximum response timeSetting the group membership time Displaying IGMPv3 information Age 253 226.0.0.1 Clearing the Igmp group membership table Displaying static Igmp groupsDisplaying the Igmp status of an interface Clearing the Igmp group membership table IPv4 Multicast Protocols Clearing Igmp traffic statistics Displaying Igmp traffic statusClearing Igmp traffic statistics Syntax show ip igmp vrf vrf-name traffic Displaying Igmp settings Syntax show ip igmp vrf vrf-name settingsSyntax clear ip igmp vrf vrf-nametraffic Configuring PIM SSM group range Source-specific multicastIgmp V3 and source specific multicast protocols Source-specific multicast Configuring multiple SSM group ranges Syntax no ssm-enable range group-addressaddress-maskSyntax no ssm-enable range acl-idor acl-name IGMPv2 SSM mapping Displaying information for PIM SSM range ACLDisplaying information for PIM SSM range ACL Configuring an ACL for IGMPv2 SSM mapping Configuring the IGMPv2 SSM mapping commandsConfiguring an ACL for IGMPv2 SSM mapping Enabling IGMPv2 SSM mapping Example configuration Displaying an Igmp SSM mapping informationDisplaying an Igmp SSM mapping information Syntax show ip igmp vrf vrf-name ssm-map Supported IPv6 Multicast Features A mixed stack only 3rd generation modules only IPv6 PIM Sparse PIM Sparse router typesIPv6 PIM Sparse RP paths and SPT paths IPv6 PIM-Sparse mode Configuring IPv6 PIM-SM on a virtual routing interfaceIPv6 PIM-Sparse mode Enabling IPv6 PIM-SM for a specified VRF Configuring BSRs Setting the BSR message intervalConfiguring BSRs Syntax no bsr-msg-interval num Configuring candidate RP Configuring candidate RPSyntax no rp-candidate add group-ipv6addressmask-bits Syntax no rp-candidate delete group-ipv6addressmask-bits Embedded Rendezvous Point Syntax no rp-address ipv6-addrIpv6-addrparameter specifies the IPv6 address of the RP Syntax clear ipv6 pim vrf vrfname rp-map Setting the RP advertisement interval Changing the Shortest Path Tree thresholdChanging the Shortest Path Tree threshold Syntax no rp-embedded Changing the PIM Join and Prune message interval Changing the PIM Join and Prune message intervalSyntax rp-adv-interval seconds Syntax no message-interval seconds Setting the prune wait interval Setting the register suppress intervalSetting the register probe time Setting the prune wait interval Setting the inactivity timer Changing the hello timerSetting the inactivity timer Syntax no hello-timer seconds Configuring Source-specific Multicast Syntax no ssm-enable range address-rangeEnabling Source-specific Multicast Enabling Source-specific Multicast Configuring Pmri Passive Multicast Route InsertionDisplaying hardware-drop Displaying basic PIM Sparse configuration information Displaying system values IPv6 Multicast Protocols Syntax show ipv6 pim vrf vrf-name sparse Displaying IPv6 PIM interface information Displaying IPv6 PIM interface information Displaying a list of multicast groups Syntax show ipv6 pim vrf vrf-name group Output from the show ipv6 pim group command Displaying BSR informationSyntax show ipv6 pim vrf vrf-name bsr Displaying candidate RP information Displaying RP-to-group mappings Syntax show ipv6 pim vrf vrf-name rp-candidate Displaying RP information for an IPv6 PIM Sparse group Displaying the RP set listDisplaying RP information for an IPv6 PIM Sparse group Syntax show ipv6 pim vrf vrf-name rp-map Displaying multicast neighbor information Syntax show ipv6 pim vrf vrf-name rp-setSyntax show ipv6 pim vrf vrf-name neighbor Displaying the IPv6 PIM multicast cache Displaying the IPv6 PIM multicast cache For Replication Entry Displaying IPv6 PIM RPF Displaying IPv6 PIM countersDisplaying IPv6 PIM RPF Syntax show ipv6 pim vrf vrf-name rpf ip-address Displaying the IPv6 PIM resources Displaying the IPv6 PIM resourcesSyntax show ipv6 pim vrf vrf-name counter Syntax show ipv6 pim all-vrf vrf vrf-name resource Displaying PIM traffic statistics Displaying PIM traffic statisticsSyntax show ipv6 pim all-vrf vrf vrf-name hw-resource Syntax show ipv6 pim vrf vrf-name traffic Clearing the IPv6 PIM forwarding cache Clearing the IPv6 PIM message countersClearing the IPv6 PIM forwarding cache Syntax clear ipv6 pim vrf vrf-name cache Clearing the IPv6 PIM traffic Defining the maximum number of IPv6 PIM cache entriesClearing the IPv6 PIM traffic Configuring a static multicast route within a VRF Configuring a static multicast route within a VRF Route Precedence Admin-distance Syntax no anycast-rprp-address my-anycast-rp-set-acl Displaying information for an IPv6 PIM Anycast RP interface Displaying information for an IPv6 PIM Anycast RP interfaceSyntax show ipv6 pim vrf vrf-name anycast-rp Configuring MLD parameters for default and non-default VRFs Setting the group membership timeEnabling MLDv2 Enabling MLDv2 Setting the maximum response time Defining the maximum number of MLD group addressesDefining the maximum number of MLD group addresses Setting the query interval Setting the last listener query intervalSetting the robustness Setting the query interval Configuring MLD parameters at the interface level Setting the versionSetting the version Specifying a port version Setting the version on an interface Displaying MLD informationEnabling MLD tracking on an interface Enabling MLD tracking on an interface Displaying MLD group information Displaying MLD definitions for an interfaceSyntax show ipv6 mld vrf vrf-name group Displaying MLD settings Displaying MLD settings Syntax show ipv6 mld vrf vrf-name settings Following command displays static MLD groups for the cs VRFDisplaying static MLD groups Displaying static MLD groups Output from the show ipv6 mld vrf cs static command Displaying MLD trafficDisplaying MLD traffic Report has a Receive and a Send section IPv6 Multicast Boundaries Clearing IPv6 MLD trafficClearing the IPv6 MLD group membership table cache Clearing IPv6 MLD traffic Configuration considerations ACL to permit multicast trafficACL to deny multicast traffic Syntax no ipv6 multicast-boundary acl-spec Displaying multicast boundaries Clear ip mroute Removes multicast routes from the mRTM Privileged Exec mode Clear ipv6 mrouteClear ipv6 mroute Removes IPv6 multicast routes from the mRTM Ip max-mroute Ip mrouteIp max-mroute Ip max-mroute num No ip max-mroute Configures a static multicast route with a next hop Ip mroute next hopIp mroute next hop Tunnel num Ip mroute next-hop-enable-default Ip mroute next-hop-enable-defaultIp mroute vrf vrf-name next-hop-enable-default No ip mroute vrf vrf-name next-hop-enable-default Ip multicast disable-flooding Ip mroute next-hop-recursionIp mroute next-hop-recursion Ip mroute vrf vrf-name next-hop-recursion Ipv6 max-mroute Ipv6 mrouteIpv6 max-mroute Ipv6 max-mroute num Modes VRF configuration mode Configures a static mroute with a next hopCommand Default No next-hop static mroute is configured Ipv6 mroute next hop Ipv6 mroute next-hop-enable-default Ipv6 mroute next-hop-enable-defaultIpv6 mroute vrf vrf-name next-hop-enable-default No ipv6 mroute vrf vrf-name next-hop-enable-default Ipv6 multicast disable-flooding Ipv6 mroute next-hop-recursionIpv6 mroute next-hop-recursion Ipv6 mroute vrf vrf-name next-hop-recursion Route-precedence Route-precedence Route-precedence admin-distance Route-precedence admin-distanceShow ip mroute IP Multicast Commands StaticConnected This example displays information for IP multicast route Displays information for configured multicast routes Show ip multicast optimizationShow ip static mroute Show ip multicast optimization ipmc Ipmc Show ipv6 mroute Show ipv6 mrouteConnect Summary Modes Privileged Exec mode Show ipv6 multicast optimizationThis example displays information for IPv6 multicast route Syntax show ipv6 multicast optimization l2mc Displays information for configured IPv6 multicast routes Show ipv6 static mrouteShow ipv6 static mroute Show ipv6 static mroute Command Command outputFeature support Igmp snooping Show commands show command Show commandMulticast fast-convergencecommand Multicast fast-leave-v2command