BFD and OSPF on VLAN interface

Unanswered Question
May 16th, 2008


I'm tryng to enable BFD for OSPF on a SVI on a Catalyst 6509 Sup 720.

Even if the vlan interface accepts the configuration command "ip ospf bfd", no BFD neighborship is established and there is no way to set bfd intervals.

Has anybody encountered the same behaviour?

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
ariela Fri, 05/16/2008 - 05:16


which version of IOS do you use?



texoruser Fri, 05/16/2008 - 07:06

Well It's funny, look at this output:

Vlan305 is up, line protocol is up

Internet Address, Area 0

Process ID 100, Router ID, Network Type BROADCAST, Cost: 10

Transmit Delay is 1 sec, State BDR, Priority 1, BFD enabled

Designated Router (ID), Interface address

Backup Designated router (ID), Interface address

It says that BFD is enabled on the specific VLAN where we configured it but no matter this, no BFD neigborship is established.

Thanks in advance


texoruser Fri, 05/16/2008 - 06:57

Hi Andrea,

we use:

Cisco IOS Software, s72033_rp Software (s72033_rp-IPSERVICESK9-M), Version 12.2(33)SXH1, RELEASE SOFTWARE (fc3)



ariela Fri, 05/16/2008 - 07:51


it seems like a problem that I've found some weeks ago on SRB1. The BFD feature was configurable, but not effective. That bug maybe will be corrected on SRC. In your case, I don't know, but my advice is to check the Bug Toolkit, or open a case.

Just for me: SXH modular version?



edit: uops .. I see now ... Have you got a 6500 or a 7600 device?

texoruser Fri, 05/16/2008 - 08:22

Hi Andrea,

we use mesh made of six 6509 in this hw configuration:

Mod Ports Card Type Model

--- ----- -------------------------------------- ------------------

1 4 CEF720 4 port 10-Gigabit Ethernet WS-X6704-10GE

2 4 CEF720 4 port 10-Gigabit Ethernet WS-X6704-10GE

3 24 CEF720 24 port 1000mb SFP WS-X6724-SFP

4 48 CEF720 48 port 10/100/1000mb Ethernet WS-X6748-GE-TX

5 2 Supervisor Engine 720 (Active) WS-SUP720-3B

6 2 Supervisor Engine 720 (Hot) WS-SUP720-3B

7 48 CEF720 48 port 10/100/1000mb Ethernet WS-X6748-GE-TX

8 6 Firewall Module WS-SVC-FWM-1



ariela Fri, 05/16/2008 - 13:43

Hmm ...

Try to upgrade to SXH2a.

Unfortunately I don't see a specific bug, but maybe is a DDTS bug internal only.

Please let me know





This Discussion