Marco, Are you using NSF/SSO on the C6500 devices? If yes, please check the restrictions regarding the use of BFD and NSF.
Regards, Alessandro On Dec 9, 2014 5:49 PM, "Murat Kaipov" <mkkai...@gmail.com> wrote: > Hello Marco. > Keep in mind that ME3600/ME3800 platforms doesn't support BFD offload, and > all BFD packets processed by CPU. > > http://www.cisco.com/c/en/us/td/docs/switches/metro/me3600x_3800x/software/r > elease/15-4_1_S/chassis/configuration/guide/3600x_24cxscg/swbfd.pdf > <http://www.cisco.com/c/en/us/td/docs/switches/metro/me3600x_3800x/software/release/15-4_1_S/chassis/configuration/guide/3600x_24cxscg/swbfd.pdf> > Show configuration on both sides please. > > > -----Original Message----- > From: cisco-nsp [mailto:cisco-nsp-boun...@puck.nether.net] On Behalf Of > Marco Marzetti > Sent: Tuesday, December 09, 2014 6:22 PM > To: cisco-nsp@puck.nether.net > Subject: [c-nsp] Unable to create BFD session on C6500 > > Hello, > > We run BFD on all of our devices and we're currently having some problems > between a pair of C6500/SUP720 and a ME3600X . > > The network diagram is as follows: > > +-----------+ > | | > +--------+ C6500_1 | > | | | > | +----+-+----+ > +----+----+ | | > | | | | > | ME3600X | | | > | | | | > +----+----+ | | > | +----+-+----+ > | | | > +--------+ C6500_2 | > | | > +-----------+ > > Both the C6500 run the following software: > s72033-adventerprisek9-mz.151-2.SY2.bin > Both C6500 are SUP720-3B and there isn't any dCEF enabled card on them. > > The OSPF sessions on C6500_1 is in FULL state: > > C6500_1# show ip ospf neighbor | i 2/7 > 192.0.2.19 0 FULL/ - 00:00:32 192.0.2.173 > GigabitEthernet2/7 > > and the relevant configuration is as follows: > > interface gigabitEthernet 2/7 > ip ospf network point-to-point > ip ospf 1 area 0 > bfd interval 300 min_rx 300 multiplier 3 > no bfd echo > ! > router ospf 1 > bfd all-interfaces > ! > > Anyway IOS is not able to start a BFD session on that interface: > > C6500_1# show ip ospf neighbor 212.183.160.19 | i BFD C6500_1# > > And returns an error when BFD debugging is on: > > C6500_1#show debugging > BFD: > BFD event debugging is on for interface GigabitEthernet2/7 > BFD packet debugging is on for interface GigabitEthernet2/7 C6500_1#conf > t Enter configuration commands, one per line. End with CNTL/Z. > C6500_1(config)#int gi2/7 > C6500_1(config-if)#no bfd interval > C6500_1(config-if)#bfd interval 300 min_rx 300 multi 3 C6500_1(config-if)# > Dec 9 16:07:42.737: BFD-DEBUG EVENT: bfd_session_create failed, 6 > C6500_1(config-if)# > > At the same time there are running BFD sessions on other interfaces > configured with the very same statements: > > For instance the following interface is connected to another ME3600X that > is > running the same software version: > > C6500_1#show bfd neighbors | i 2/6 > 192.0.2.109 294/3 Up Up Gi2/6 > C6500_1# > > Can anyone help? > > Thank You > _______________________________________________ > cisco-nsp mailing list cisco-nsp@puck.nether.net > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ > _______________________________________________ > cisco-nsp mailing list cisco-nsp@puck.nether.net > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ > _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/