I am testing the IGMP snooping behavior in OVS 2.4 with the following setup:
OVS1-------------eth0--------------------OVS2 | | | | eth1 eth1 ------- IGMP Querier | | | | Laptop1 Laptop2 OVS1 and OVS2 are embedded devices running OVS-2.4 with snooping enabled. Laptop1 and Laptop2 have multicast listeners. Without the IGMP Querier, the IGMP join messages sent by Laptop1 stop at OVS1 and do not continue on to OVS1. This is what I expected. Now I turn on an IGMP querier which sends general IGMP queries on 224.0.0.1. I can see these queries going through OVS2 and arriving at OVS1. Now further IGMP joins from Laptop1 should no longer be blocked by OVS1, but should be forwarded on the port (eth0) that received an IGMP query. I do not observe this behavior. Is this behavior not yet implemented in the current snooping implementation ? Is there any configuration option to enable it ? Regards, Ajit.
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