Users Guide
debug ip igmp snooping
Enable debugging of IGMP snooping packets on interfaces and groups.
S4820T
Syntax
debug ip igmp snooping [group address | interface]
• To disable debugging of IGMP snooping, use the no debug ip igmp snooping [group 
address | interface] command.
• To disable all debugging, use the undebug all command.
Parameters
snooping Enter the keyword snooping to enable debugging of IGMP snooping.
group-address (OPTIONAL) Enter the IP multicast group address in dotted decimal format.
interface interface Enter the following keywords and slot/port or number information:
• For a 10-Gigabit Ethernet interface, enter the keyword 
TenGigabitEthernet then the slot/port information.
• For a 40-Gigabit Ethernet interface, enter the keyword fortyGigE then the 
slot/port information.
•
For a port channel interface, enter the keywords port-channel then a 
number.
Defaults Disabled.
Command Modes EXEC Privilege
Command History
This guide is platform-specic. 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.
Version Description
9.7(0.0) Introduced on the S4810, S4820T, S5000, S6000, S6000–ON, Z9000, and Z9500.
Usage Information IGMP commands accept only non-VLAN interfaces — specifying VLAN does not yield results. This 
command displays packets for IGMP and IGMP snooping.
ip igmp snooping enable
Enable IGMP snooping on all or a single VLAN. This command is the master on/o switch to enable IGMP snooping.
Syntax
ip igmp snooping enable
To disable IGMP snooping, use the no ip igmp snooping enable command.
Defaults Disabled.
Command Modes
• CONFIGURATION
• INTERFACE VLAN
650
Internet Group Management Protocol (IGMP)










