James,
<br /> 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.
<br />
<br />I was anticipating a ton of troubleshooting, but didn't run into any issues.
<br />
<br />That being said, this was the first and only Multicast over MPLS implementation that I've done.
<br />
<br />HTH
<br />
<br />On Nov 9, 2010 11:04am, "Buchanan, James" <jbuchanan@presidio.com> wrote:
<br />> 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
<br />> 12 Cadillac Dr, Suite 130, Brentwood, TN 37027 | jbuchanan@presidio.com
<br />> D: 615-866-5729 | F: 615-866-5781 | www.presidio.com CCIE #25863, Voice
<br />>
<br />>
<br />> From: cisco-voip-bounces@puck.nether.net [mailto:cisco-voip-bounces@puck.nether.net] On Behalf Of Jeff Ruttman
<br />> Sent: Tuesday, November 09, 2010 9:12 AM
<br />> To: Cisco VOIP
<br />> Subject: [cisco-voip] Any Informacast Users? with MPLS?
<br />>
<br />> Greetings,
<br />>
<br />> 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.
<br />>
<br />> Long shot, I know, but any ideas out there?
<br />>
<br />> Thanks
<br />> jeff
<br />>
<br />>
<br />>