Some of the basic things to check: - Everything should be pingible from everywhere, including the sender and reciver. Layer 3 connectivity should be complete before anything can happen. - Make sure that the RP is pinglible by the sender and the reciever. - Make sure that the RP address is not mis-typed (its amazing how many times that ends up being the culprit). - Throw ip pim sparse on the loopbacks as well.
Hope this helps. Sr. Network Engineer Megapath Inc. CCIE 9651 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Antonio Querubin Sent: Tuesday, July 08, 2008 2:12 PM To: Mihai Tanasescu Cc: [email protected] Subject: Re: [c-nsp] VRF-Lite & Multicast question On Tue, 8 Jul 2008, Mihai Tanasescu wrote: > I have just started studying multicast for accomplishing a task that I've > been giving and don't know where / what I am doing wrong. > > > My setup is something like the following: > > > RP ---> Router A --- iBGP ---> Router B --- eBGP --> Router C (vrf-lite) > > > between Router B and Router C I have 5 links (4 are vrf-lite in Router C, the > 5th is in the global table and use for MPLS ldp). > > > I have configured on each router: > ip multicast-routing (in C for example for both global and VRF) , ip pim > sparse-dense-mode on interfaces and the RP. > > > If I connect with a cable in Router A I can view the multicast stream. > Same if I connect in Router B. > > > But in Router C it doesn't work (neither in the global table, neither in the > VRFs from vrf-lite implementation). > > > Can you help with an advice or what I could be doing wrong ? (I'm just a > beginner/newbie when it comes to mcast) Do you have an RP on the right-hand-side of your diagram and do you have MSDP peering running between the left and right to distribute source info? Antonio Querubin whois: AQ7-ARIN _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.138 / Virus Database: 270.4.6/1540 - Release Date: 7/8/2008 6:33 AM _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
