Re: Clear ip OSPF process when cost is changed

Mohammed,

Ideally speaking, an LSU will be triggered on changing the cost of an
interface and you needn't clear the process
This is also the case if you change auto-cost ref bw
The change would be updated within seconds as we see in IOS and this should
be the case for any standard vendor.

Best Regards,
Tharak Abraham Luke

On Tue, Feb 14, 2012 at 12:51 PM, Mohammed Aftab Memon <
aftabmemon12_at_gmail.com> wrote:

> Hello All,
>
> Why do we need to clear the ip ospf process when the cost is changed ?
>
> I tried it on some other vendor and when I changed the cost of the link it
> did not work and when I do a clear ip ospf process the cost changes and
> works as expected.
>
> But if I just change the cost of the interface nothing happens. It works
> only when I clear the OSPF process.
>
> Is it a software bug or its a normal process ?
>
> When I google it I found :
>
>
>
> Link state does not use SPF algorithm, but rather it relies on router
> broadcasting downed link immediately. This is the main reason for fast
> convergence time (distance vector uses hold time, split horizon, etc, while
> link state does not).
>
>
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Received on Wed Feb 15 2012 - 14:40:39 ART