Oh -- The other thing I would have liked to see in that situation is if R1 and R7 both still know who the RP is at that point when it is failing. Do further pings also fail or does it come back up?
On Sun, Mar 7, 2010 at 6:29 PM, Joe Astorino <[email protected]> wrote: > 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 > > > -- 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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