Yes, that sounds exactly like what i'm seeing, I think this should give me a great place to start looking into
thanks a lot for the quick response. Peter Fabian | Senior Voice Engineer | P: 602.740.5650 On Tue, Jan 22, 2013 at 8:02 PM, marc abel <[email protected]> wrote: > Peter, > > I don't have time to look at your topology right now but what you are > experiencing is due to the switch-over to the source based tree. When you > establish a multicast session the first packets come from the RP point, but > quickly switches over to be sourced directly from the multicast speaker. > What is happening in your case is your RPF check is good from the > destination to the RP, but somewhere along the line between the source and > destination path there is an RPF failure or you don't have a PIM adjacency. > > Hope that helps, > > Marc > > > On Tue, Jan 22, 2013 at 9:44 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 >> > > > > -- > Marc Abel > CCIE #35470 > (Routing and Switching) > _______________________________________________ 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
