Hi,
I?m trying BFD with some Force10 S4810 routers, problem is that sessions only come up every 3 or 4 times I restart bird. Also if Force10 routers are restarted, some times the sessions do not come back up. Also I have to restart bird to get it to work - birdc configure does not do it.
I tried with the sysctl -w net.ipv4.ip_local_port_range="49152 65535? but this does not help either.
I?m not able to get more debug info from the force10 devices than this:
What you get from 'show bfd sessions' in BIRD?
# birdc show ospf nei BIRD 1.4.2 ready. ospf1: Router ID Pri State DTime Interface Router IP 77.66.22.229 0 2way/other 00:20 bond0.3000 77.66.22.229 77.66.22.227 0 2way/other 00:20 bond0.3000 77.66.22.227 77.66.22.195 5 full/bdr 00:18 bond0.3000 77.66.22.226 77.66.22.194 10 full/dr 00:19 bond0.3000 77.66.22.225 Working: # birdc show bfd ses BIRD 1.4.2 ready. bfd1: IP address Interface State Since Interval Timeout 77.66.22.227 bond0.3000 Down 17:16:24 1.000 0.000 77.66.22.225 bond0.3000 Up 17:16:31 0.100 0.300 77.66.22.226 bond0.3000 Up 17:16:30 0.100 0.300 77.66.22.229 bond0.3000 Down 17:16:25 1.000 0.000 Not working: # birdc show bfd ses BIRD 1.4.2 ready. bfd1: IP address Interface State Since Interval Timeout 77.66.22.227 bond0.3000 Down 17:27:00 1.000 0.000 77.66.22.225 bond0.3000 Init 17:27:08 1.000 3.000 77.66.22.229 bond0.3000 Down 17:27:00 1.000 0.000 77.66.22.226 bond0.3000 Init 17:27:06 1.000 3.000
Could you get some tcpdump of BFD packets in both cases?
Sure, see attached tar, including two dumps, working and notworking. .225 is the router, .228 is bird.
-- Elen sila lumenn' omentielvo
Ondrej 'SanTiago' Zajicek (email: santiago@crfreenet.org) OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net) "To err is human -- to blame it on a computer is even more so."