All things related to multicast

[Brent Draney <>]

Have you tried bridging the 2 switches together without vrrp and
verifying that hosts on both switches will be able to join?  I
would guess that its a snooping bug with bridged switches and 
has nothing to do with vrrp which is a layer-3 thing.

Brent

> Hi,
>         I have a question on what should be expected behavior for 
> PIM/IGMP.
> 
> I have a source which sits behind two switches that are running vrrp. 
> 
> Switch A IP: 10.1.1.9
> Switch B IP: 10.1.1.10
> Virtual IP:      10.1.1.11.
> 
> I also have some users that are directly connected to Switch A, and Switch 
> B.  For some odd reason all users that are connected to Switch A can 
> receive the stream.
> Everyone connected to Switch B cannot.  The funny thing is that if I 
> single home the same source onto switch A it works fine.  If I single home 
> the src to Switch B it works fine.  The only time it has issues is if they 
> are in this VRRP configuration.
> 
> Question: 
> Because Switch A is the IGMP designated router, does that mean Switch B 
> should stop responding to any requests for that Group? even though its 
> directly connected to that group? 
> 
> Or is this another Bug?  Both switches are Nortel 8600's.
> 
> Thanks
> Anand
> 
> 
> 
> 
>