That does seem strange. You should not have inconsistent results like that. At that point, I would be looking to see what is going on in your SP core there.
Things look to be OK on R1, but all the magic is happening starting with R2. I would keep my eye on R2 and see if you have anything flapping (MP-BGP session to R4, PIM adjacency over your tunnel0 interface), etc... If things seem to be OK, I would start looking at debug ip mpacket and trying to isolate where the problem is coming from. On Sun, Mar 7, 2010 at 7:01 AM, Gian Paolo <[email protected]> wrote: > Hi all, > I'm watching VoD about Multicast VPN configurations while replicating all > the configs on dynamips. > > Everything's fine until a couple of minutes from the end of the video: when > I try to ping 239.7.7.7 from R1 as in the video I get an answer from the > first ping and then nothing: > > > *R1#sh ip mroute* > * > * > (*, 224.0.1.39), 01:21:28/stopped, RP 0.0.0.0, flags: DC > * Incoming interface: Null, RPF nbr 0.0.0.0* > * Outgoing interface list:* > * FastEthernet0/0, Forward/Sparse-Dense, 01:21:28/00:00:00* > * > * > *(22.22.22.22, 224.0.1.39), 00:00:07/00:02:52, flags: PT* > * Incoming interface: FastEthernet0/0, RPF nbr 10.0.12.2* > * Outgoing interface list: Null* > * > * > *(*, 224.0.1.40), 01:26:14/stopped, RP 0.0.0.0, flags: DCL* > * Incoming interface: Null, RPF nbr 0.0.0.0* > * Outgoing interface list:* > * FastEthernet0/0, Forward/Sparse-Dense, 01:26:14/00:00:00* > * > * > *(22.22.22.22, 224.0.1.40), 01:16:30/00:02:54, flags: PLT* > * Incoming interface: FastEthernet0/0, RPF nbr 10.0.12.2* > * Outgoing interface list: Null* > * > * > *R1#ping 239.7.7.7* > * > * > *Type escape sequence to abort.* > *Sending 1, 100-byte ICMP Echos to 239.7.7.7, timeout is 2 seconds:* > * > * > *Reply to request 0 from 10.0.47.7, 20 ms* > * > * > *R1#ping 239.7.7.7* > * > * > *Type escape sequence to abort.* > *Sending 1, 100-byte ICMP Echos to 239.7.7.7, timeout is 2 seconds:* > *.* > *R1#sh ip mroute* > * > * > *(*, 239.7.7.7), 00:00:10/stopped, RP 22.22.22.22, flags: SP* > * Incoming interface: FastEthernet0/0, RPF nbr 10.0.12.2* > * Outgoing interface list: Null* > * > * > *(1.1.1.1, 239.7.7.7), 00:00:10/00:03:25, flags: T* > * Incoming interface: Null, RPF nbr 0.0.0.0* > * Outgoing interface list:* > * FastEthernet0/0, Forward/Sparse-Dense, 00:00:10/00:03:19* > * > * > *(*, 224.0.1.39), 01:21:43/stopped, RP 0.0.0.0, flags: DC* > * Incoming interface: Null, RPF nbr 0.0.0.0* > * Outgoing interface list:* > * FastEthernet0/0, Forward/Sparse-Dense, 01:21:43/00:00:00* > * > * > *(22.22.22.22, 224.0.1.39), 00:00:22/00:02:37, flags: PT* > * Incoming interface: FastEthernet0/0, RPF nbr 10.0.12.2* > * Outgoing interface list: Null* > * > * > *(*, 224.0.1.40), 01:26:31/stopped, RP 0.0.0.0, flags: DCL* > * Incoming interface: Null, RPF nbr 0.0.0.0* > * Outgoing interface list:* > * FastEthernet0/0, Forward/Sparse-Dense, 01:26:31/00:00:00* > * > * > *(22.22.22.22, 224.0.1.40), 01:16:47/00:02:37, flags: PLT* > * Incoming interface: FastEthernet0/0, RPF nbr 10.0.12.2* > * Outgoing interface list: Null* > > > > Is that the right behaviour? Am I wrong expecting subsequent ping answers > on R1? > > Thanks. > > Gian Paolo > > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > -- Regards, Joe Astorino CCIE #24347 (R&S) Sr. Technical Instructor - IPexpert Mailto: [email protected] Telephone: +1.810.326.1444 Live Assistance, Please visit: www.ipexpert.com/chat eFax: +1.810.454.0130 IPexpert is a premier provider of Classroom and Self-Study Cisco CCNA (R&S, Voice & Security), CCNP, CCVP, CCSP and CCIE (R&S, Voice, Security & Service Provider) Certification Training with locations throughout the United States, Europe and Australia. Be sure to check out our online communities at www.ipexpert.com/communities and our public website at www.ipexpert.com
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