IGMP Snooping version compatibility

[Rajesh cisco]

Hi all,

If IGMP Snooping switch is running in version v1, whether v2 and v3 reports should be processed or should be discarded in CISCO ?

thanks,

Muni / rajesh.

[InayathUlla Sharieff]

Hi Rajesh,

Compatibility with IGMP V1 and V2

Different multicast groups, interfaces, and routers can run their own version of IGMP. Their version of IGMP is reflected in the membership reports that the interfaces send to the router. Routers and interfaces must be configured to recognized the ve...

An interface or router sends the queries and reports that include its IGMP version specified on it. It may recognize a query or report that has a different version, but it may not process them. For example, an interface running IGMP V2 can recognize ...

If an interface continuously receives queries from routers that are running versions of IGMP that are different from what is on the interface, the interface logs warning messages in the syslog every five minutes. Reports sent by interfaces to routers...show ip igmp traffic command.

The version of IGMP can be specified globally, per interface (physical port or virtual routing interface), and per physical port within a virtual routing interface. The IGMP version set on a physical port within a virtual routing interface supersedes...

HTH

Regards

Inayath