From: Thor Kopp (thorkopp@googlemail.com)
Date: Wed Apr 09 2008 - 03:09:44 ART
Hello GS,
Can someone explain how IGMP Snooping differ from MVR and when we would use
MVR? My CD say 'It allows the single multicast VLAN to be shared in the
network while subscribers remain in separate VLANs. MVR provides the ability
to continuously send multicast streams in the multicast VLAN, but to isolate
the streams from the subscriber VLANs for bandwidth and security reasons.'
Could we use 'ip igmp access-group' to restrict group that ports receive
traffic from or use 'ip multicast boundry' to restrict what multicast
traffic go out interface. But then I think that igmp access-group and
multicast boundry are L3 commands that we would put on router interface and
MVR acts at L2 on our switch to prevent traffic so still unsure.
Best Regards - Thor
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