[c-nsp] BFD aware VRF

[Vikas Sharma]

Hi,

I have configured BFD but it is showing down. I have used BGP to configure
BFD.

Client Router -

a05-2821-3#sh bfd neighbors
OurAddr       NeighAddr     LD/RD  RH/RS  Holddown(mult)  State     Int
172.16.1.5    172.16.1.6     4/0    Down      0    (0 )   Down
Gi0/0
172.16.1.1    172.16.1.2     6/0    Down      0    (0 )   Down
Gi0/1

*7600 PE  -*

e12-7600-1#sh bfd neighbors

OurAddr       NeighAddr     LD/RD  RH/RS  Holddown(mult)  State     Int
172.16.1.2    172.16.1.1     1/6    Down      1916 (3 )   Init      Gi12/1

Debug output -

e12-7600-1#debug bfd event
BFD event debugging is on
e12-7600-1#
*Feb  6 04:33:06.176: Applying event 2
*Feb  6 04:33:06.176: bfdV1FSM e:2 s:2
*Feb  6 04:33:07.008: Applying event 2
*Feb  6 04:33:07.008: bfdV1FSM e:2 s:2
*Feb  6 04:33:07.508: bfdV1FSM e:4 s:2
*Feb  6 04:33:07.508: Session [172.16.1.2,172.16.1.1,Gi12/1,1], event DETECT
TIMER EXPIRED, state INIT -> DOWN
*Feb  6 04:33:07.912: Applying event 2
*Feb  6 04:33:07.912: bfdV1FSM e:2 s:1
*Feb  6 04:33:07.912: Session [172.16.1.2,172.16.1.1,Gi12/1,1], event RX
DOWN, state DOWN -> INIT
*Feb  6 04:33:08.704: Applying event 2
*Feb  6 04:33:08.704: bfdV1FSM e:2 s:2
*Feb  6 04:33:09.648: Applying event 2
*Feb  6 04:33:09.648: bfdV1FSM e:2 s:2u all
*Feb  6 04:33:10.436: Applying event 2
*Feb  6 04:33:10.436: bfdV1FSM e:2 s:2
*Feb  6 04:33:10.912: bfdV1FSM e:4 s:2
*Feb  6 04:33:10.912: Session [172.16.1.2,172.16.1.1,Gi12/1,1], event DETECT
TIMER EXPIRED, state INIT -> DOWN
*Feb  6 04:33:11.288: Applying event 2
*Feb  6 04:33:11.288: bfdV1FSM e:2 s:1
*Feb  6 04:33:11.288: Session [172.16.1.2,172.16.1.1,Gi12/1,1], event RX
DOWN, state DOWN -> INIT
All possible debugging has been turned off
e12-7600-1#
*Feb  6 04:33:12.152: Applying event 2
*Feb  6 04:33:12.152: bfdV1FSM e:2 s:2

*7200 PE -*

c12-7200-3#sh bfd n

OurAddr       NeighAddr     LD/RD  RH/RS  Holddown(mult)  State     Int
172.16.1.6    172.16.1.5     1/4    Down      512  (3 )   Init      Gi0/2


Debug Output -

c12-7200-3#debug bfd event
BFD event debugging is on
c12-7200-3#
*Feb  6 04:39:54.544: Applying event 2
*Feb  6 04:39:54.544: bfdV1FSM e:2 s:1
*Feb  6 04:39:54.544: Session [172.16.1.6,172.16.1.5,Gi0/2,1], event RX
DOWN, state DOWN -> INIT
*Feb  6 04:39:55.328: Applying event 2
*Feb  6 04:39:55.328: bfdV1FSM e:2 s:2
*Feb  6 04:39:56.100: Applying event 2
*Feb  6 04:39:56.100: bfdV1FSM e:2 s:2
*Feb  6 04:39:56.880: Applying event 2
*Feb  6 04:39:56.880: bfdV1FSM e:2 s:2
*Feb  6 04:39:57.544: bfdV1FSM e:4 s:2
*Feb  6 04:39:57.544: Session [172.16.1.6,172.16.1.5,Gi0/2,1], event DETECT
TIMER EXPIRED, state INIT -> DOWN
*Feb  6 04:39:57.676: Applying event 2
*Feb  6 04:39:57.676: bfdV1FSM e:2 s:1
*Feb  6 04:39:57.676: Session [172.16.1.6,172.16.1.5,Gi0/2,1], event RX
DOWN, state DOWN -> INITu all
All possible debugging has been turned off
c12-7200-3#
*Feb  6 04:39:58.632: Applying event 2
*Feb  6 04:39:58.632: bfdV1FSM e:2 s:2
*Feb  6 04:39:59.472: Applying event 2
*Feb  6 04:39:59.472: bfdV1FSM e:2 s:2

Both PE have SRC image. Not getting any debug output on 2800 CE router.

Regards
Vikas Sharma
On 2/5/08, Justin Shore <justin at justinshore.com> wrote:
>
> Luan Nguyen wrote:
> > I did try with an ethernet link between PE and CE, and bfd config looks
> > good.
>
> Unless you're Ethernet links are 1Q trunks like what you'd have between
> a site with a pair of redundant routers doing both L3 and access layer
> connections (FHRPs).  SRC removed BFD on SVI support, as did SXH on the
> ME6524s.
>
> Yes, I'm beating a dead horse but it aggravates me nonetheless.  I need
> to upgrade to SRC but I am going to lose BFD support as soon as I do,
> pushing my recovery times up into seconds; far from the milliseconds
> Cisco sold us on when they blessed this design.
>
> Justin
>