Cisco WS-C3560E-48PD-SF Command Reference - Page 480
show ipv6 mld snooping querier
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show ipv6 mld snooping querier Chapter 2 Catalyst 3560 Switch Cisco IOS Commands show ipv6 mld snooping querier Use the show ipv6 mld snooping querier user EXEC command to display IP version 6 (IPv6) Multicast Listener Discovery (MLD) snooping querier-related information most recently received by the switch or the VLAN. show ipv6 mld snooping querier [vlan vlan-id] [detail] [ | {begin | exclude | include} expression] 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 detail | begin | exclude | include expression (Optional) Specify a VLAN; the range is 1 to 1001 and 1006 to 4094. (Optional) Display MLD snooping detailed querier information for the switch or for the VLAN. (Optional) Display begins with the line that matches the expression. (Optional) Display excludes lines that match the expression. (Optional) Display includes lines that match the specified expression. Expression in the output to use as a reference point. Command Modes User EXEC Command History Release 12.2(25)SED Modification This command was introduced. Usage Guidelines Use the show ipv6 mld snooping querier command to display the MLD version and IPv6 address of a detected device that sends MLD query messages, which is also called a querier. A subnet can have multiple multicast routers but has only one MLD querier. The querier can be a Layer 3 switch. The show ipv6 mld snooping querier command output also shows the VLAN and interface on which the querier was detected. If the querier is the switch, the output shows the Port field as Router. If the querier is a router, the output shows the port number on which the querier is learned in the Port field. The output of the show ipv6 mld snoop querier vlan command displays the information received in response to a query message from an external or internal querier. It does not display user-configured VLAN values, such as the snooping robustness variable on the particular VLAN. This querier information is used only on the MASQ message that is sent by the switch. It does not override the user-configured robustness variable that is used for aging out a member that does not respond to query messages. VLAN numbers 1002 through 1005 are reserved for Token Ring and FDDI VLANs and cannot be used in MLD snooping. 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. 2-448 Catalyst 3560 Switch Command Reference 78-16405-05