Michael, You may be mixing up BSR and MA here. BSR is sent to 224.0.0.13 (All PIM Routers; link-local) with the TTL of 1. MA sends traffic to 224.0.1.40 (globally routable) with the TTL set using the "scope" keyword during the configuration.
-- Marko Milivojevic - CCIE #18427 (SP R&S) Senior CCIE Instructor - IPexpert On Thu, Dec 20, 2012 at 2:07 AM, Michael Davis - Webquor <[email protected]> wrote: > Hi there please read this article: > http://www.cisco.com/en/US/docs/ios/solutions_docs/ip_multicast/White_papers/frm_rlay.html#wp1029926 > It should answer all your questions. It is a good read. > I don't think placing the Mapping agent on a spoke is supported and I doubt > you would ever need to do it. > Remember too if you are using sparse mode, make sure to enable IP pim autorp > listener on each router, as it allows those two groups for autorp to run in > dense mode. If anyone else has any input or corrections please contribute. > > > Sent from my iPhone > > On 20/12/2012, at 7:10 PM, "Baldeep Birdy" > <[email protected]<mailto:[email protected]>> wrote: > > Ok so what's the purposed of the TTL in - ip pim send-rp-discovery scope > ttl-value > > I thought by setting this you can control/or permit the flow of your RP > MAppings to routers who want to learn??? > > Thanks > B > >> From: [email protected]<mailto:[email protected]> >> To: [email protected]<mailto:[email protected]> >> CC: [email protected]<mailto:[email protected]> >> Subject: Re: [OSL | CCIE_RS] Multicasting NBMA Frame-Relay and AutoRP >> Date: Thu, 20 Dec 2012 07:05:06 +0000 >> >> Auto RP mapping agent traffic had a ttl of 1. You cannot change that. Hub >> must be MA. >> >> Sent from my iPhone >> >> On 20/12/2012, at 4:13 PM, "Baldeep Birdy" >> <[email protected]<mailto:[email protected]>> wrote: >> >> > So I've been spending a lot of time on multicasting and today was playing >> > with the deployment of AutoRP within a FR Cloud. I have my RP at the hub >> > site, with my MA deployed at a spoke. Straight away I ran into issues with >> > my MA announcements, on 224.0.1.40, being sent to my other spoke routers, >> > to the hub site no issues. Note, that this was intended to further cement >> > my understanding of frame-relay concepts and also mcast. >> > >> > Now my thought process was that the 224.0.1.40 annoucements are not >> > getting to my spoke, they are being sent to the hub who is not forwarding >> > them on. I then remembered that these announcements are sent to your PIM >> > neighbours only, and my initial thought was that enabling autorp listener >> > on the hub would resolve the issue. Alas no, would like someone to explain >> > this. >> > >> > Second though, ok I need to get the spokes to become neighbours, I >> > configured frame-relay map ip statements, with the broadcast command, >> > between my spokes but again no result. >> > >> > Final thought, setup a GRE tunnel between them and configure PIM on the >> > tunnel, with the required static mroute to fix my RFP failure, result >> > worked. >> > >> > So going back I'm now a little confused about points 1 and 2. Clearly I've >> > got a gap in my theory. >> > >> > 1. AutoRP listener, causes the router to flood autorp messages within the >> > environment, so why not from the hub down to spokes? I configured no ip >> > split horizon on the interface thinking is it a split horizon issue, but >> > this is for routing right? so a red herring? >> > >> > 2. With the frame-relay map statements, why didn't my spokes become >> > neighbours? I have broadcast statements so the packets would have been >> > unicasted out? >> > >> > I've read that the MA SHOULD be placed at the hub, so it has full >> > communication. Short of using a GRE tunnel is this my only option? There >> > has to be an alternative, what am I missing. >> > >> > Thanks >> > Bal >> > >> > _______________________________________________ >> > For more information regarding industry leading CCIE Lab training, please >> > visit www.ipexpert.com<http://www.ipexpert.com> >> > >> > Are you a CCNP or CCIE and looking for a job? Check out >> > www.PlatinumPlacement.com<http://www.PlatinumPlacement.com> >> > >> > http://onlinestudylist.com/mailman/listinfo/ccie_rs > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > Are you a CCNP or CCIE and looking for a job? Check out > www.PlatinumPlacement.com > > http://onlinestudylist.com/mailman/listinfo/ccie_rs _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com http://onlinestudylist.com/mailman/listinfo/ccie_rs
