Cisco Catalyst 3750-X Command Reference

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Catalyst 3750-X and 3560-X Switch Command Reference
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Chapter 2 Catalyst 3750-X and 3560-X Switch Cisco IOS Commands
show ip igmp snooping querier
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]]
Syntax Description
Command Modes User EXEC
Command History
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
Examples This is an example of output from the show ip igmp snooping querier command:
Switch> show ip igmp snooping querier
Vlan IP Address IGMP Version Port
---------------------------------------------------
1 172.20.50.11 v3 Gi1/0/1
2 172.20.40.20 v2 Router
detail Optional) Display detailed IGMP querier information.
vlan vlan-id [detail] 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.
Release Modification
12.2(53)SE2 This command was introduced.

Cisco Catalyst 3750-X Specifications

General

Switching Capacity	160 Gbps
Stacking Bandwidth	64 Gbps
Max Stacking Units	9
Layer Support	Layer 2 and Layer 3
Form Factor	Rack-mountable
DRAM	256 MB
Flash Memory	64 MB
Model	Cisco Catalyst 3750-X Series
Ports	24 or 48 10/100/1000 Ethernet ports
Uplink Interfaces	4 SFP or 2 SFP+
Features	StackWise Plus, EnergyWise
Image	IP Base or IP Services
Operating Temperature	0 to 40°C
Operating Humidity	10 to 85% noncondensing