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: working : Apr 14 14:50:07: %STKUNIT0-M:CP %OSPF-5-ADJCHG: Neighbour state changed.OSPF Process 1, Nbr 77.66.22.228 on interface Vl 3000 change state from LOADING to FULL 3d0h48m : OSPFINFO: Quick Enabling BFD for NBRIP 77.66.22.228 RTRID 77.66.22.228 3d0h48m : OSPFINFO: OSPF Enabling BFD for NBRIP 77.66.22.228 Interface Vl 3000 IfIndex 1107528632 3d0h48m : OSPFINFO: Bfd Parameters interval 0 min_rx 0 Mult 0 role 0 3d0h48m : OSPFINFO: Completed Enabling BFD for NBRIP 77.66.22.228 Apr 14 14:50:08: %STKUNIT0-M:CP %BFDMGR-1-BFD_STATE_CHANGE: Changed session state to Up for neighbor 77.66.22.228 on interface Vl 3000 (diag: NO_DIAG) 3d0h48m : OSPFINFO: Ospf got BFD msg 3d0h48m : OSPFINFO: Bfd Msg Type Up for interface Vl 3000 3d0h48m : OSPFINFO: BFD Msg Up for NBRIP 77.66.22.228 RTRID 77.66.22.228, nbr bfd state Init not working : Apr 14 14:49:46: %STKUNIT0-M:CP %OSPF-5-ADJCHG: Neighbour state changed.OSPF Process 1, Nbr 77.66.22.228 on interface Vl 3000 change state from LOADING to FULL 3d0h47m : OSPFINFO: Quick Enabling BFD for NBRIP 77.66.22.228 RTRID 77.66.22.228 3d0h47m : OSPFINFO: OSPF Enabling BFD for NBRIP 77.66.22.228 Interface Vl 3000 IfIndex 1107528632 3d0h47m : OSPFINFO: Bfd Parameters interval 0 min_rx 0 Mult 0 role 0 3d0h47m : OSPFINFO: Completed Enabling BFD for NBRIP 77.66.22.228 Any hints are greatly appreciated. Thanks Regards Kristoffer
On Mon, Apr 14, 2014 at 05:12:31PM +0200, Kristoffer Egefelt wrote:
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? Could you get some tcpdump of BFD packets in both cases? -- 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."
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."
participants (2)
-
Kristoffer Egefelt -
Ondrej Zajicek