Re: NSF?

NSF is a feture that enables dual common control routers to
keep forwarding during a failover (change of acting control supervisor).

The failing router usually can keep the forwarding going through the
failover thanks to SSO (Stateful switgh over, CEF tables keep in synch
between active and standby sups) but routing protocol sessions have to
be restablished.
This is where NSF kicks in: a contract between NSF capable router and
NSF aware neighbours. The NSF aware neighbours keep forwarding *while*
the routing adjacencies are rebuilt by the new active sup.

-Carlos

CCIE RS @ 3/05/2009 8:54 -0200 dixit:
> Thanks.I found one for EIGRP , but none actually talk about the NSF feature
> itself. they just talk about the benefit it brings.
>
> http://www.cisco.com/en/US/docs/ios/12_2t/12_2t15/feature/guide/ft_ensf.html#wp1038711
>
> If someone who understands this , can summarize in a para it would be great
> :)
> Still searching.
> -CC13RS.
>
>
>
>
> On Sun, May 3, 2009 at 9:42 PM, Nauman Habib <mrnauman_at_gmail.com> wrote:
>
>> This is with resport to OSPF
>>
>>
>> http://www.cisco.com/en/US/docs/ios/12_2t/12_2t15/feature/guide/ftosnsfa.html
>>
>> Regards,
>> Nauman
>>
>> On Sun, May 3, 2009 at 2:40 PM, Nauman Habib <mrnauman_at_gmail.com> wrote:
>>
>>> Check this out
>>>
>>>
>>> http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/50sg/configuration/guide/NSFwSSO.html
>>>
>>>
>>> Regards,
>>>
>>> Nauman
>
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-- 
Carlos G Mendioroz  <tron_at_huapi.ba.ar>  LW7 EQI  Argentina
Blogs and organic groups at http://www.ccie.net