Troubleshooting Guide

Chapter 23: Multicast routing
troubleshooting using ACLI
Use the information in this section to help you troubleshoot multicast routing problems.
Viewing IGMP interface information
Perform this procedure to view the IGMP interface table.
About this task
If an interface does not use an IP address, it does not appear in the IGMP table. One exception is
an IGMP snooping interface, which does not require an interface IP address.
If an interface uses an IP address, but neither IGMP snoop or PIM is enabled, the interface appears
as inactive in the Status field.
Procedure
1. Enter Privileged EXEC mode:
enable
2. View IGMP interfaces:
show ip igmp interface [gigabitethernet {slot/port[/sub-port][-slot/
port[/sub-port]][,...]}|vlan <1-4059>] [vrf WORD<1–16>][vrfids
WORD<0–512>]
Example
View IGMP interfaces:
Switch:1#show ip igmp interface
================================================================================
Igmp Interface - GlobalRouter
================================================================================
QUERY OPER QUERY WRONG
LASTMEM
IF INTVL STATUS VERS. VERS QUERIER MAXRSPT QUERY JOINS ROBUST QUERY
MODE
--------------------------------------------------------------------------------
V300 125 active 3 3 21.0.0.12 100 0 674 2 10
January 2017 Troubleshooting 267
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