Reference Guide
Version 
8.3.19.0
Introduced on the S4820T.
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.7.0 Introduced on the S4810.
Version 7.6.1.0 Introduced on the S-Series.
Version 7.5.1.0 Introduced on the C-Series.
E-Series legacy 
command.
Usage 
Information
IGMP commands accept only non-VLAN interfaces — specifying VLAN does not 
yield results.
Example
Dell#show ip igmp interface
GigabitEthernet 0/0 is down, line protocol is down
 Internet protocol processing disabled
GigabitEthernet 0/5 is down, line protocol is down
 Internet protocol processing disabled
GigabitEthernet 0/6 is down, line protocol is down
 Internet protocol processing disabled
GigabitEthernet 0/7 is up, line protocol is down
 Internet protocol processing disabled
GigabitEthernet 7/9 is up, line protocol is up
 Internet address is 10.87.5.250/24
 IGMP is enabled on interface
 IGMP query interval is 60 seconds
 IGMP querier timeout is 120 seconds
 IGMP max query response time is 10 seconds
 IGMP last member query response interval is 1000 ms
 IGMP activity: 0 joins, 0 leaves
 IGMP querying router is 10.87.5.250 (this system)
 IGMP version is 2
show ip igmp ssm-map
Display is a list of groups that are currently in the IGMP group table and contain SSM mapped sources.
S4820T
Syntax
show ip igmp ssm-map [group]
Parameters
group (OPTIONAL) Enter the multicast group address in the form 
A.B.C.D to display the list of sources to which this group is 
mapped.
Command 
Modes
• EXEC
• EXEC Privilege
Command 
History
This guide is platform-specific. For command information about other platforms, 
refer to the relevant Dell Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
726
Internet Group Management Protocol (IGMP)










