All things related to multicast

[Bill Owens <>]

At 16:23 -0500 5/10/02, Brent Sweeny wrote:
> folks, for the last several days we (Abilene) are seeing frequent--and
> even weirder--simultaneous resets of msdp sessions on Abilene, and
> can't quite figure out what's going wrong.  here are some data points,
> and I'll ask some questions at the end.

I will sheepishly admit to not having looked at the logs on our 
Junipers in some time, and just finding that the resets apparently 
started in Buffalo quite a while ago:

Dec 30 04:26:49 buf-m20 rpd[573]: RPD_MSDP_PEER_DOWN: MSDP peer 
199.109.2.2 peer-group Abilene-Buf out of Established
Dec 30 04:27:36 buf-m20 rpd[573]: RPD_MSDP_PEER_DOWN: MSDP peer 
199.109.2.2 peer-group Abilene-Buf out of Established
Dec 30 04:53:47 buf-m20 rpd[573]: RPD_MSDP_PEER_DOWN: MSDP peer 
199.109.2.2 peer-group Abilene-Buf out of Established
Dec 30 04:57:41 buf-m20 last message repeated 2 times
Dec 30 05:14:51 buf-m20 rpd[573]: RPD_MSDP_PEER_DOWN: MSDP peer 
199.109.2.2 peer-group Abilene-Buf out of Established

But they didn't start in NYC until recently:

May  3 14:02:04 nyc-m20-0 rpd[587]: RPD_MSDP_PEER_DOWN: MSDP peer 
199.109.5.2 peer-group Abilene-NYC out of Established
May  3 14:02:40 nyc-m20-0 rpd[587]: RPD_MSDP_PEER_DOWN: MSDP peer 
199.109.5.2 peer-group Abilene-NYC out of Established
May  3 14:04:19 nyc-m20-0 last message repeated 5 times
May  3 14:14:23 nyc-m20-0 last message repeated 28 times
May  3 14:19:33 nyc-m20-0 last message repeated 6 times

Our other Juniper, roc-m10, does not peer with Abilene and hasn't 
seen any resets on the MSDP peers within NYSERNet. Those peers 
include one GSR that had been on 12.0(15)S and jumped directly to 
12.0(21)S1 a month or so ago. Our Junipers have progressed through 
the usual set of releases and are now on 5.2R2.3. If there's any 
debugging that we can do, just let me know. Watching things after 
CLEV goes to 12.0(21)S tonight will be a good test. . .

Bill.