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2759 Views 0 Replies Latest reply: Apr 26, 2010 3:03 AM by "RedNectar" Chris Welsh RSS

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Optimizing OSPF timers for WAN links

Apr 26, 2010 3:03 AM

"RedNectar" Chris Welsh 51 posts since
Oct 20, 2008

I have found lots of great recommendationsfor tuning CAMPUS OSPF networks (assuming 1Gig & 10Gig links) in the document http://www.cisco.com/en/US/docs/nsite/campus/ha_campus_routed_access_cvd_ag.pdf.  For those who haven't read this document it boils down to:

 

Cisco recommended values for Campus OSPF network design:

router ospf 1

timers throttle spf 10 100 5000     !based on 10ms debounce timer for 1Gb/s & 10Gb/s Ethernet

timers throttle lsa all 10 100 5000

timers lsa arrival 80

interface gi1/11

ip ospf dead-interval minimal hello multiplier 4

 

But what about WAN links? 

Does anyone know Cisco's recommended values for Hello/Router Dead intervals for WAN (Frame Relay/PPP)?

And is it worth tuning spf & lsa timers on WAN links?

A reference to an official Cisco document would even be better.

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