[c-nsp] igmp snooping inside 802.1q trunks

[Tim Stevenson]

What group(s) are you sending to?

Tim

At 01:28 PM 1/30/2006, Vladimir Ivashchenko murmered:
> > > The problem is that 6500 seems to unconditionally forward all multicast
> > > traffic to all trunk ports even if there are no receivers there. E.g.
> > > "show mac-address-table multicast" does not show any entries for that
> > > port, however it still receives all multicast traffic.
> > >
> > > Any ideas?
> >
> > The 6500 is going to forward multicast traffic to any routers it learns
> > about.
> > Does a "show multicast router" on the 6500 list all the trunk ports?
>
>I checked it (using IOS's sh ip igmp snooping mrouter), only one 
>port there as expected.
>
>--
>Best Regards
>Vladimir Ivashchenko
>Chief Technology Officer
>Thunderworx, Cyprus - www.thunderworx.com
>_______________________________________________
>cisco-nsp mailing list  cisco-nsp at puck.nether.net
>https://puck.nether.net/mailman/listinfo/cisco-nsp
>archive at http://puck.nether.net/pipermail/cisco-nsp/



Tim Stevenson, tstevens at cisco.com
Routing & Switching CCIE #5561
Technical Marketing Engineer, Catalyst 6500
Cisco Systems, http://www.cisco.com
IP Phone: 408-526-6759
********************************************************
The contents of this message may be *Cisco Confidential*
and are intended for the specified recipients only.