ip pim nbma-mode? Otherwise the hub can't populate the OIL with the same interface as the RPF neighbor for the MA announcement.
Your spokes won't form PIM adjacencies because the PIM hello messages have a TTL of 1 and the hub router decrements the TTL when switching between PVCs (even though it probably shouldn't as that's a layer 2 function). Bob -- Sent from my iPhone, please excuse any typos. On Dec 20, 2012, at 12:14 AM, Baldeep Birdy <[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 > > 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
