Cisco WS-C3560V2-24TS-E Command Reference - Page 462
show ip igmp snooping querier, querier detail
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show ip igmp snooping querier Chapter 2 Catalyst 3560 Switch Cisco IOS Commands show ip igmp snooping querier Use the show ip igmp snooping querier detail user EXEC command to display the configuration and operation information for the IGMP querier configured on a switch. show ip igmp snooping querier [detail | vlan vlan-id [detail]] [ | {begin | exclude | include} expression] Syntax Description detail vlan vlan-id [detail] | begin | exclude | include expression Optional) Display detailed IGMP querier information. Optional) Display IGMP querier information for the specified VLAN. The range is 1 to 1001 and 1006 to 4094. Use the detail keyword to display detailed information. (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)SEA Modification This command was introduced. Usage Guidelines Use the show ip igmp snooping querier command to display the IGMP version and the IP address of a detected device, also called a querier, that sends IGMP query messages. A subnet can have multiple multicast routers but has only one IGMP querier. In a subnet running IGMPv2, one of the multicast routers is elected as the querier. The querier can be a Layer 3 switch. The show ip igmp snooping querier command output also shows the VLAN and the 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 show ip igmp snooping querier detail user EXEC command is similar to the show ip igmp snooping querier command. However, the show ip igmp snooping querier command displays only the device IP address most recently detected by the switch querier. The show ip igmp snooping querier detail command displays the device IP address most recently detected by the switch querier and this additional information: • The elected IGMP querier in the VLAN • The configuration and operational information pertaining to the switch querier (if any) that is configured in the VLAN Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear. 2-430 Catalyst 3560 Switch Command Reference 78-16405-05