Configuring IP Multicast Switching Modifying IPMS Parameters
OmniSwitch AOS Release 8 Network Configuration Guide December 2017 page 25-24
Setting the IGMP Group Limit
To set the IGMP global group limit and drop any requests above the limit, use the ip multicast max-
group command as shown below:
-> ip multicast max-group 25 action drop
To set the IGMP group limit for a VLAN or SPB service and replace an existing session, use the ip
multicast max-group command as shown below:
-> ip multicast vlan 10 max-group 25 action replace
-> ip multicast service 10 max-group 25 action replace
To set the IGMP group limit for a port or an SPB Service Access Point (SAP), use the ip multicast port
max-group command. For example, the following commands set the maximum group limit to 25 on port
1/1/13 and SAP port 1/1/23:10:
-> ip multicast port 1/1 max-group 25 action drop
-> ip multicast sap port 1/1/23:10 max-group 25 action drop
In the above example, 1/1/23:10 serves as a SAP ID in an SPB network. A SAP ID is comprised of an
access port number (1/1/23) and an encapsulation value (10). Traffic received on access port 1/1/23 that is
tagged with VLAN 10 is encapsulated and then forwarded on the SPB service that is associated with the
SAP. Refer to Chapter 10, “Service Manager Commands,” for more information.
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