Henning Brauer wrote:
* Karl Austin <[EMAIL PROTECTED]> [2006-02-06 11:39]:
Hi,
I've just upgraded a box to the 3.9 Snapshot from 30th January and now
whenever bgpd tries to open a session with a Extreme BlackDiamond it
reports the following:
received notification: error in OPEN message, optional parameter error
This was all working fine with a 3.8 snapshot before. Anyone else had
similar issue, a Google and Newsnet didn't turn up anything and I don't
recall seeing anything on-list either. I'm aware that the BD is probably
doing something it shouldn't be in terms of sticking to the RFCs, but
non-the-less, it did work before.
we are announcing something to the BD it does not like. a tcpdump
(increase snaplen, like, tcpdump -vvv -n -s 1500 port 179) would help,
and you can play with announce IPv6/IPv6 in the config, and, as last
resort, "announce capabilities no". But I'd really prefer to debug this
properly, maybe we need to change something in he way we announce
capabilites by default.
also, check logs on the other side.
Just trying to get the BD to give me something remotely useful about
it. Reading back what I typed, wasn't all that clear in my first
message, it's OpenBGPD giving the error, not the BD.
tcpdump:
# tcpdump -i ti1 -vvv -n -s 1500 port 179 and host 192.168.1.5
tcpdump: listening on ti1, link-type EN10MB
11:09:46.794102 192.168.1.5.1381 > 192.168.1.6.179: S [tcp sum ok]
3055653480:3055653480(0) win 3600 <mss 1460> [tos 0xc0] (ttl 30, id
43716, len 44)
11:09:46.794121 192.168.1.6.179 > 192.168.1.5.1381: S [tcp sum ok]
2689756459:2689756459(0) ack 3055653481 win 16384 <mss 1460> (DF) (ttl
64, id 15313, len 44)
11:09:46.795217 192.168.1.5.1381 > 192.168.1.6.179: . [tcp sum ok]
1:1(0) ack 1 win 3600 [tos 0xc0] (ttl 30, id 43717, len 40)
11:09:46.795340 192.168.1.6.179 > 192.168.1.5.1381: F [tcp sum ok]
1:1(0) ack 1 win 17520 (DF) (ttl 64, id 18823, len 40)
11:09:46.795747 192.168.1.5.1381 > 192.168.1.6.179: . [tcp sum ok]
1:1(0) ack 2 win 3600 [tos 0xc0] (ttl 30, id 43718, len 40)
11:09:47.087864 192.168.1.5.1381 > 192.168.1.6.179: P [tcp sum ok]
1:30(29) ack 2 win 3600: BGP (OPEN: Version 4, AS #65535, Holdtime 180,
ID 192.168.1.1, Option length 0) [tos 0xc0] (ttl 30, id 43720, len 69)
11:09:47.087877 192.168.1.6.179 > 192.168.1.5.1381: R [tcp sum ok]
2689756461:2689756461(0) win 0 (DF) (ttl 64, id 22030, len 40)
11:09:47.088335 192.168.1.5.1381 > 192.168.1.6.179: F [tcp sum ok]
30:30(0) ack 2 win 3600 [tos 0xc0] (ttl 30, id 43721, len 40)
11:09:47.088342 192.168.1.6.179 > 192.168.1.5.1381: R [tcp sum ok]
2689756461:2689756461(0) win 0 (DF) (ttl 64, id 25445, len 40)
Tried with:
announce IPv6 none
and:
announce capabilities no
but neither make any difference.
Thanks,
Karl
