[c-nsp] OPSF / BFD timer advise

[Phil Bedard]

What device and what IOS are you running this on?  Are the  
adjacencies are lost due to a BFD event or an OSPF dead timer  
expiration?  Using a 1 second dead timer and BFD-enabled OSPF is  
overkill imho, but you need to find out what is causing the failures.

Phil



On Jul 12, 2007, at 8:38 AM, James Worley wrote:

>
>
> Ola Gents
>
> We are having a problem with OSPF neigbour relationships being  
> taken down
> between core and distribution. This is causing our MPLS-VPNs to  
> fall over.
>
>  ip ospf dead-interval minimal hello-multiplier 4
>
>  bfd interval 250 min_rx 250 multiplier 4
>
> looking at the config above it looks like my company is running sub  
> second
> timers on both BFD and OSPF and a possible reason for an overly  
> sensitive
> network.
>
> My feeling is we need to let off on the OSPF timers and allow BFD  
> to do
> its job. Possible configure a 1sec hello and 3 dead timer for OSPF?
>
> Anyone fancy commenting?
>
>
> Kindest Regards
> James
>
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