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 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/