[cisco-voip] Any Informacast Users? with MPLS?

[Jeff Ruttman]

Hi HTH,
 
Our carrier is AT&T.  To clarify for me, you asked AT&T to carry
multicasts over MPLS, and in order to do that you had to answer a number
of question for them (filled out a form) they did their config on their
side, and then you were clear to do your config, and it worked pretty
easily.
 
Thanks
jeff
 
 
________________________________

From: mthompson729 at gmail.com [mailto:mthompson729 at gmail.com] 
Sent: Tuesday, November 09, 2010 10:16 AM
To: Buchanan, James
Cc: Jeff Ruttman; Cisco VOIP
Subject: Re: Re: [cisco-voip] Any Informacast Users? with MPLS?


James, 
Not necessarily. IP in GRE is a very good solution, but there are
carriers that will support Multicast over MPLS. We just turned up
Informacast / Relicast for a customer within the last few months. The
carrier is AT&T and they definitely support it. There are a number of
questions to answer, is it Sparse or Dense, what your ip / port ranges
will be, etc. Once we completed that form, about 3 weeks later we were
cleared to do our configuration. 

I was anticipating a ton of troubleshooting, but didn't run into any
issues. 

That being said, this was the first and only Multicast over MPLS
implementation that I've done. 

HTH 

On Nov 9, 2010 11:04am, "Buchanan, James" <jbuchanan at presidio.com>
wrote: 
> The MPLS provider does not support multicast routing across the WAN.
I have worked around this in the past by using a GRE tunnel. Basically,
you create a multicast route (ip mroute) to route the multicast traffic
through the GRE tunnel, which is essentially a simulated layer 2
connection through the MPLS network.  It is possible Singlewire has a
relay of some sort for this situation as well that would allow you to
avoid a GRE tunnel.  James Buchanan | Technology Manager, UC | South
Region | Presidio Networked Solutions 
> 12 Cadillac Dr, Suite 130, Brentwood, TN 37027 |
jbuchanan at presidio.com 
> D: 615-866-5729 | F: 615-866-5781 | www.presidio.com CCIE #25863,
Voice 
> 
> 
>  From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Jeff Ruttman 
> Sent: Tuesday, November 09, 2010 9:12 AM 
> To: Cisco VOIP 
> Subject: [cisco-voip] Any Informacast Users? with MPLS? 
> 
>  Greetings, 
>   
> We're changing out some point to point circuits with MPLS circuits.
The audio on a page via Informacast no longer makes it through.  The
phones beep, so the connection is made, but audio is silent.  The point
to point circuits are working just fine. 
>   
> Long shot, I know, but any ideas out there? 
>   
> Thanks 
> jeff 
> 
> 
>
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