Re: Clear ip OSPF process when cost is changed

What equipment do you run this on? What's the version number? You need
to wait a while for the recalculation to happen after you change the
cost.

--
Marko Milivojevic - CCIE #18427 (SP R&S)
Senior CCIE Instructor - IPexpert
On Thu, Feb 16, 2012 at 02:14, Mohammed Aftab Memon
<aftabmemon12_at_gmail.com> wrote:
> Thank you so much!
>
> It seems to be a bug as when I reduce the cost of a link it works like a
> charm... but when I increase the cost I need to run the spf algorithm to
> get it work.
>
> Aftab
>
> On Wed, Feb 15, 2012 at 2:40 PM, Abraham, Tharak <tharakabraham_at_gmail.com>wrote:
>
>> 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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>
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