2-268Cisco Catalyst Blade Switch 3130 and 3032 for Dell Command ReferenceOL-13271-03Chapter 2 Cisco Catalyst Blade Switch 3130 and 3032 for Dell Cisco IOS Commandsipv6 mld snooping listener-message-suppressionipv6 mld snooping listener-message-suppressionUse the ipv6 mld snooping listener-message-suppression global configuration command on the switchstack or on a standalone switch to enable IP version 6 (IPv6) Multicast Listener Discovery (MLD)snooping listener message suppression. Use the no form of this command to disable MLD snoopinglistener message suppression.ipv6 mld snooping listener-message-suppressionno ipv6 mld snooping listener-message-suppressionNote This command is supported only if you have configured a dual IPv4 and IPv6 Switch DatabaseManagement (SDM) template on the switch.Command Default The default is for MLD snooping listener message suppression to be disabled.Command Modes Global configurationCommand HistoryUsage Guidelines To configure the dual IPv4 and IPv6 template, enter the sdm prefer dual-ipv4-and-ipv6 {default | vlan)global configuration command and reload the switch.MLD snooping listener message suppression is equivalent to IGMP snooping report suppression. Whenenabled, received MLDv1 reports to a group are forwarded to IPv6 multicast routers only once in everyreport-forward time. This prevents the forwarding of duplicate reports.Examples This example shows how to enable MLD snooping listener-message-suppression:Switch(config)# ipv6 mld snooping listener-message-suppressionThis example shows how to disable MLD snooping listener-message-suppression:Switch(config)# no ipv6 mld snooping listener-message-suppressionYou can verify your settings by entering the show ipv6 mld snooping [vlan vlan-id] user EXECcommand.Release Modification12.2(40)EX1 This command was introduced.
