ip igmp snooping auto


ip igmp snooping auto <PORT-LIST>

no ip igmp snooping auto <PORT-LIST>


Configures the specified ports in auto mode. In auto mode traffic flow is controlled by the IGMP joins/leaves. Auto mode is the default.

The no form of this command removes auto mode ports for the VLAN.

Command context



auto <PORT-LIST>

Specifies a list of ports to be configured as auto ports. You can specify a single port, a comma-separated list of ports, or a range of ports such as 1/1/1-1/1/3.


Administrators or local user group members with execution rights for this command.


On the 6400 Switch Series, interface identification differs.

Configure auto ports for the VLAN:

switch(config)# vlan 2
switch(config-vlan)# ip igmp snooping auto 1/1/1
switch(config-vlan)# ip igmp snooping auto 1/1/1,1/1/2-1/1/3