[c-nsp] BFD state remains in "AdminDown"

[Luan Nguyen]

Don't think that 12.4.15T3 has VRF support for BFD.
Maybe try 12.2.33SRC (depends on what kind of routers you have)
I had a configuration like that and didn't work for me. Mine isn't a PE-CE
kind so didn't bother with SRC code.

-lmn

On Wed, Feb 27, 2008 at 11:34 PM, Stephen Fulton <sf at lists.esoteric.ca>
wrote:

> I have BFD configured between two routers, both running 12.4(15)T3.  On
> router A, BFD cycles between INIT and DOWN.  On router B, the state
> remains "AdminDown".  Here are the configs for both interfaces:
>
> -- snip --
>
> Router A:
>
> interface FastEthernet0/0.1000
>  encapsulation dot1Q 1000
>  ip vrf forwarding CUSTOMER
>  ip address 10.248.1.1 255.255.255.248
>  no ip redirects
>  ip ospf hello-interval 2
>  ip ospf dead-interval 6
>  ip ospf priority 255
>  ip ospf bfd
>  bfd interval 50 min_rx 50 multiplier 5
>  no cdp enable
> end
>
>
> Router B:
>
> interface FastEthernet0/0
>  bandwidth 1544
>  ip address 10.248.1.2 255.255.255.248
>  no ip redirects
>  ip ospf hello-interval 2
>  ip ospf dead-interval 6
>  ip ospf bfd
>  duplex full
>  speed 10
>  bfd interval 50 min_rx 50 multiplier 5
>  no cdp enable
> end
>
> -- snip --
>
> And here is the output from "sh bfd neighbors detail" for both:
>
> -- snip --
>
> Router A:
>
> Sheridan#sh bfd neighbors 10.248.1.2 details
>
> OurAddr       NeighAddr     LD/RD  RH/RS  Holddown(mult)  State     Int
> 10.248.1.1    10.248.1.2     7/3    Down      4108 (5 )   Init
> Fa0/0.1000
> Local Diag: 1, Demand mode: 0, Poll bit: 0
> MinTxInt: 1000000, MinRxInt: 1000000, Multiplier: 5
> Received MinRxInt: 1000000, Received Multiplier: 5
> Holddown (hits): 4108(102), Hello (hits): 1000(567)
> Rx Count: 619, Rx Interval (ms) min/max/avg: 744/1092/879 last: 892 ms ago
> Tx Count: 773, Tx Interval (ms) min/max/avg: 1/1000/704 last: 424 ms ago
> Elapsed time watermarks: 0 8 (last: 4)
> Registered protocols: OSPF
> Last packet: Version: 1            - Diagnostic: 0
>              State bit: Down       - Demand bit: 0
>              Poll bit: 0           - Final bit: 0
>              Multiplier: 5         - Length: 24
>              My Discr.: 3          - Your Discr.: 0
>              Min tx interval: 1000000    - Min rx interval: 1000000
>              Min Echo interval: 50000
>
>
> Router B:
>
> OurAddr       NeighAddr     LD/RD  RH/RS  Holddown(mult)  State     Int
> 10.248.1.2    10.248.1.1     3/0    Down      0    (0 )   Down      Fa0/0
> Local Diag: 0, Demand mode: 0, Poll bit: 0
> MinTxInt: 1000000, MinRxInt: 1000000, Multiplier: 5
> Received MinRxInt: 0, Received Multiplier: 0
> Holddown (hits): 0(0), Hello (hits): 1000(515)
> Rx Count: 0, Rx Interval (ms) min/max/avg: 0/0/0 last: 1351524 ms ago
> Tx Count: 516, Tx Interval (ms) min/max/avg: 756/1000/879 last: 168 ms ago
> Elapsed time watermarks: -1 0 (last: 0)
> Registered protocols: OSPF
> Last packet: Version: 1            - Diagnostic: 0
>              State bit: AdminDown  - Demand bit: 0
>              Poll bit: 0           - Final bit: 0
>              Multiplier: 0         - Length: 0
>              My Discr.: 0          - Your Discr.: 0
>              Min tx interval: 0    - Min rx interval: 0
>              Min Echo interval: 0
>
> -- snip --
>
> I'm out of ideas, and there is nothing in the bug toolkit.. Suggestions?
>
> -- Stephen
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