Is there a different solution you can use, that does not change the unicast behavior, or involves adding interfaces to PIM? (hint: http://blog.ipexpert.com/2010/12/29/multicast-rpf-failure-recovery-using-bgp/)
-- Marko Milivojevic - CCIE #18427 (SP R&S) Senior CCIE Instructor - IPexpert On Wed, Jan 23, 2013 at 10:33 AM, Peter Fabian <[email protected]> wrote: > Well, a solution that worked for me (but I don't think worked for the > requirements of the task) was to enable pim on the links between R4 and R2 > (still have bsr-border enabled) it looks like the unicast route for R4 is > from R2 -> R4, while the first packet coming from the RP was going from R4 > -> R5 -> R1 -> R2. (msdp peers R5 <-> R1). > > A) Does any of what I said make sense/ is relevant > B) If so, am I right thinking that this is not the correct solution? > C) In my head it seems to me that multicast traffic should flow through the > MSDP peer, but maybe I'm just wrong here? > > I am painfully aware that I don't fully understand pim specifically and > multcast in general as well as I need to yet. :-( > > > Peter Fabian | Senior Voice Engineer > > > > On Wed, Jan 23, 2013 at 9:08 AM, Marko Milivojevic <[email protected]> > wrote: >> >> Have you resolved the possible RPF issues that arise when an SPT >> switchover happens? >> >> -- >> Marko Milivojevic - CCIE #18427 (SP R&S) >> Senior CCIE Instructor - IPexpert >> >> On Tue, Jan 22, 2013 at 7:44 PM, Peter Fabian <[email protected]> >> wrote: >> > Ok so I'm official stuck >> > >> > Trying to complete 5.3 in Vol3 lab7 but seem to be having some >> > intermittent >> > failures. >> > >> > Specifically, multicast pings between MSDP peers seems to fail. I say >> > seems, because they work pretty reliably the first time, but if I try >> > subsequent times they fail. >> > >> > Right now I am testing from R4 pinging 239.0.0.2 (on R2). R5 and R1 are >> > setup as MSDP peers. >> > All routers mentioned above are running sparse-mode >> > >> > >> > Here's a tidbit of output: >> > >> > R4#ping 239.0.0.2 >> > >> > Type escape sequence to abort. >> > Sending 1, 100-byte ICMP Echos to 239.0.0.2, timeout is 2 seconds: >> > >> > Reply to request 0 from 12.1.2.2, 96 ms >> > R4#ping 239.0.0.2 >> > >> > Type escape sequence to abort. >> > Sending 1, 100-byte ICMP Echos to 239.0.0.2, timeout is 2 seconds: >> > . >> > R4#sho ip mroute 239.0.0.2 >> > IP Multicast Routing Table >> > (*, 239.0.0.2), 00:00:17/stopped, RP 45.45.45.5, flags: SPF >> > Incoming interface: FastEthernet0/1.45, RPF nbr 45.4.5.5 >> > Outgoing interface list: Null >> > >> > (45.45.45.4, 239.0.0.2), 00:00:17/00:02:47, flags: PFT >> > Incoming interface: Loopback0, RPF nbr 0.0.0.0 >> > Outgoing interface list: Null >> > >> > >> > R2#sho ip mroute >> > IP Multicast Routing Table >> > (*, 239.0.0.2), 11:47:44/stopped, RP 12.12.12.1, flags: SJCLF >> > Incoming interface: FastEthernet0/0.12, RPF nbr 12.1.2.1 >> > Outgoing interface list: >> > Loopback0, Forward/Sparse, 11:47:44/00:02:52 >> > >> > (45.45.45.4, 239.0.0.2), 00:03:19/00:00:10, flags: L >> > Incoming interface: Serial0/1/0.24, RPF nbr 12.45.24.4, Mbgp >> > Outgoing interface list: >> > FastEthernet0/0.12, Forward/Sparse, 00:03:20/00:03:22 >> > Loopback0, Forward/Sparse, 00:03:20/00:02:51 >> > >> > (*, 224.0.1.40), 11:49:03/00:02:22, RP 0.0.0.0, flags: DCL >> > Incoming interface: Null, RPF nbr 0.0.0.0 >> > Outgoing interface list: >> > FastEthernet0/0.12, Forward/Sparse, 11:49:03/00:02:22 >> > >> > >> > Any suggestions, or troubleshooting ideas would be appreciated. Thanks >> > >> > Peter Fabian | Senior Voice Engineer >> > _______________________________________________ >> > 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
