[j-nsp] VPLS Flooding Issue

Krasimir Avramski krasi at smartcom.bg
Sat May 28 02:23:48 EDT 2011

AFAIK the igmp snooping is not supported over vpls pw interfaces.
So, you end up with traffic to be dropped at C-point downstream to CE in
case there is no igmp join.

Krasimir Avramski

On Sat, May 28, 2011 at 12:35 AM, A. Tash <atashayod at yahoo.com> wrote:

> Folks,
> Does anyone come across a solution  to resolve the VPLS Flooding issue?
> I’m using P2MP LSPs and IGMP  Snooping on all VPLS interfaces and routing
> instances and I’m still getting  multicast flooding on multi-point VPLS
> circuits.
> An example is a 3-point VPLS  network. Point “A” is the source of the
> multicast
> and points “B” and “C” are the  receivers of the multicast. If “B” sends a
> Join
> request, A will forward the  traffic to both “B” and “C”, even if “C” has
> not
> requested to join.
> This behavior is causing a lot of  waste on the bandwidth and security
> issues,
> especially if “A”, “B” and “C” are  internationally dispersed.
> Any idea is  appreciated.
> Thanks…Alex
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