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Excessive SPF calculation

Dear all .

Urgent assistance needed:

Scenario:

Router currently experiencing high cpu utilization. On examining ospf , seems to be doing excessive spf calculation.

Question:

1. How can i determine the cause of the high SPF calculation

2. What are the recommended values for the SPF & LSA values, assuming you want to enable throttling

Loggs attached.

Thanks.

1 REPLY

Re: Excessive SPF calculation

There seems no problems with area 200, as the last time SPF was run 1 week ago. However, the concern is area 0. Pls chk for any fluctuations of link frequently, CRC errors on link. Once the problem interface is identified, shut it & chk the performance.

If possible, clear ospf process once to reset the counters & get stats of sh ip ospf after every hour, to understand the trend.

To many acl's & route-maps are also a reason for high cpu at times.

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