[c-nsp] RES: OSPF fast convergence

Phil Mayers p.mayers at imperial.ac.uk
Wed May 13 06:09:10 EDT 2009

Leonardo Gama Souza wrote:
> You also may want to configure 'carrier-delay msec 0' on the

The Cisco presentations I read claimed (and my tests seem to confirm) 
that carrier-delay is already the lowest it can be on 6500/7600 LAN 
cards. I'd be interested to hear experiences confirming or refuting that.

> interface. But you will need to configure dampening on it as well. 

Dampening is a good idea.

> Tweaking 'timers pacing flood' under OSPF process is an option, but
> use it with caution. If you are using LDP, I would recommend using
> LDP-IGP synchronization. Do not forget to configure 'ip ospf network
> point-to-point' for point-to-point gig interfaces.

Of course - shouldn't have missed that!

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