OSPF incremental SPF - ispf option

From: Igor M. (imanassypov@rogers.com)
Date: Tue Sep 23 2008 - 12:56:10 ART

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Hi,

Is anyone aware of the ospf incremental SPF recalculation option under ospf
process? In one of the workbooks I've stumbled on a requirement to make ospf
recalculate its area databases only when there is a change in lsa 1 and lsa 2
types only. They enable ispf under the process:

ispf Enable incremental SPF computation

When would you want to enable this feature and under which circumstances? Why
is it disabled by default?

Thanks!

----------------------

I.M., M.Eng. P.Eng.

Network Architect

CI Investments

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Blogs and organic groups at http://www.ccie.net

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