Concept Guide

Viewing IGMP Enabled Interfaces
Interfaces that are enabled with PIM-SM are automatically enabled with IGMP.
To view IGMP-enabled interfaces, use the following command.
• View IGMP-enabled IPv4 interfaces.
EXEC Privilege mode
show ip igmp interface
• View IGMP-enabled IPv6 interfaces.
EXEC Privilege mode
show ipv6 mld interface
Example of the show ip igmp interface Command
DellEMC#show ip igmp interface TenGigabitEthernet 1/10/1
Inbound IGMP access group is not set
Internet address is 165.87.34.5/24
IGMP is up on the interface
IGMP query interval is 60 seconds
IGMP querier timeout is 0 seconds
IGMP max query response time is 10 seconds
IGMP last member query response interval is 1000 ms
IGMP immediate-leave is disabled
IGMP activity: 2 joins
IGMP querying router is 165.87.34.5 (this system)
IGMP version is 2
DellEMC#
Dell#show ipv6 mld interface vlan 20
Vlan 20 is up, line protocol is up
Inbound MLD access group is not set
Internet address is fe80::92b1:1cff:fef4:9b63/64
MLD is enabled on interface
MLD query interval is 60 seconds
MLD querier timeout is 125 seconds
MLD max query response time is 10 seconds
MLD last member query response interval is 1000 ms
MLD immediate-leave is enabled for all groups
MLD activity: 0 joins
MLD querying router is 35::1 (this system)
MLD version is 2
Selecting an IGMP Version
Dell EMC Networking OS enables IGMP version 2 by default, which supports version 1 and 2 hosts, but is not compatible with version 3 on
the same subnet.
If hosts require IGMP version 3, you can switch to IGMP version 3.
To switch to version 3, use the following command.
• Switch to a dierent IGMP version.
INTERFACE mode
ip igmp version
Example of the ip igmp version Command
DellEMC(conf-if-te-1/13/1)#ip igmp version 3
DellEMC(conf-if-te-1/13/1)#do show ip igmp interface
GigabitEthernet 1/13/1 is up, line protocol is down
Inbound IGMP access group is not set
Interface IGMP group join rate limit is not set
Internet Group Management Protocol (IGMP)
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