[c-nsp] Multicast Issue

Mark Tinka mark.tinka at seacom.mu
Sun Jun 3 02:58:00 EDT 2012


On Sunday, June 03, 2012 08:25:22 AM Tony wrote:
 
> There are about 101 different reasons it could be
> performing badly, we're sort of just throwing
> suggestions out there.

Agree - it still points toward a bandwidth issue, Mohammad. 
The picture is fine with only one stream, but goes noisy 
when add a second one.

Check to make sure:

	a) How much bandwidth you can actually squeeze
	   through the link, Unicast and Multicast.

	b) What you're being told you have is what you
	   actually have.

	c) If there is QoS enabled in the case that the link
	   is carrying non-Multicast traffic also.

Another exercise for you would be to try and watch the same 
channel on another Tv off the same switch. This is to make 
sure that Multicast is actually work, and that a second copy 
of the same stream isn't being created on the same switch 
that holds the (S,G) for the original stream.

Again, 101 things possibly going on here, but without any 
more concrete information, we're shooting in the dark.

Mark.
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