Clear ip OSPF process when cost is changed

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 Tue Feb 14 2012 - 12:51:56 ART