All things related to multicast

[Alan Crosswell <>]

We've seen this with HSRP.  The RPF check fails unless you set up a static
mroute or have a dynamic routing protocol running.
/a


 wrote:
> 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
> 
> 
> 
> 
>