Cisco WS-C3560E-48PD-SF Command Reference - Page 223
ipv6 mld snooping robustness-variable
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Chapter 2 Catalyst 3560 Switch Cisco IOS Commands ipv6 mld snooping robustness-variable ipv6 mld snooping robustness-variable Use the ipv6 mld snooping robustness-variable global configuration command to configure the number of IP version 6 (IPv6) Multicast Listener Discovery (MLD) queries that the switch sends before deleting a listener that does not respond, or enter a VLAN ID to configure on a per-VLAN basis. Use the no form of this command to reset the variable to the default settings. ipv6 mld snooping [vlan vlan-id] robustness-variable integer_value no ipv6 mld snooping [vlan vlan-id] robustness-variable Note This command is available only if the switch is running the advanced IP services image and you have configured a dual IPv4 and IPv6 Switch Database Management (SDM) template on the switch. Syntax Description vlan vlan-id integer_value (Optional) Configure the robustness variable on the specified VLAN. The VLAN ID range is 1 to 1001 and 1006 to 4094. The range is 1 to 3. Command Default The default global robustness variable (number of queries before deleting a listener) is 2. The default VLAN robustness variable (number of queries before aging out a multicast address) is 0, which means that the system uses the global robustness variable for aging out the listener. Command Modes Global configuration Command History Release 12.2(25)SED Modification This command was introduced. Usage 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. Robustness is measured in terms of the number of MLDv1 queries sent with no response before a port is removed from a multicast group. A port is deleted when there are no MLDv1 reports received for the configured number of MLDv1 queries. The global value determines the number of queries that the switch waits before deleting a listener that does not respond and applies to all VLANs that do not have a VLAN value set. The robustness value configured for a VLAN overrides the global value. If the VLAN robustness value is 0 (the default), the global value is used. VLAN numbers 1002 through 1005 are reserved for Token Ring and FDDI VLANs and cannot be used in MLD snooping. 78-16405-05 Catalyst 3560 Switch Command Reference 2-191