configure igmp snooping vlan ports filter

configure igmp snooping vlan vlanname ports portlist filter [policy | none]


Configures an IGMP (Internet Group Management Protocol) snooping policy file filter on VLAN (Virtual LAN) ports.

Syntax Description

vlanname Specifies a VLAN name.
portlist Specifies one or more ports or slots and ports. On a SummitStack, it can be a list of slots and ports. On a stand-alone switch, it can be one or more port numbers. May be in the form 1, 2, 3-5, 2:5, 2:6-2:8.
policy Specifies the policy file for the filter.



Usage Guidelines

Use this command to filter multicast groups to the specified VLAN ports.

The policy file used by this command is a text file that contains the class-D addresses of the multicast groups that you wish to block.

To remove IGMP snooping filtering from a port, use the none keyword version of the command.

Use the following template to create a snooping filter policy file:

# # Add your group addresses between "Start" and "end" # Do not touch the rest of the 
entry igmpFilter 
{ if match any 
#------------------ Start of group addresses ------------------ 
nlri; nlri; 
#------------------- end of group addresses ------------------- 
} then { deny; 
entry catch_all 
{ if 
} then 
{ permit; 


The following example configures the policy file ap_multicast to filter multicast packets forwarded to VLAN marketing on ports 2:1-2:4:

configure igmp snooping marketing ports 2:1-2:4 filter ap_multicast


This command was first available in ExtremeXOS 10.1.

Platform Availability

This command is available on platforms that support the appropriate license. For complete information about software licensing, including how to obtain and upgrade your license and which licenses support the IGMP snooping feature, see the ExtremeXOS 22.2 Feature License Requirements document.