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New Member

OSPF Router process take almost 100% CPU Cycles

We currently run an OSPF network w/ approx 400 Nodes. We are trying to add some extra DLCI's to create a mesh environment. When we add the statement to the OSPF process the OSPF Router process shoots up to about 100% and never settles down. The statement we add is "network 192.168.0.0 0.0.255.255 area 0" The routers in question are a 7505, 4700 and 1601. Any inputs would be greatly appreciated.

1 REPLY
New Member

Re: OSPF Router process take almost 100% CPU Cycles

The question is, what do you mean by 400 nodes.....400 pc's, 400 routers, or 400 links? The important thing here is the number of links, the type of routers, the stability of the links, and the size of the routing table.

The 7500 is a pretty potent router, as is the 4700........are you including the 1600 router in area 0? The 1600 may not have the horsepower to run OSPF with the number of links and routes in your network......it only takes one router to keep the rest down.

Do a show process cpu and look to see what is consuming the CPU

http://www.cisco.com/en/US/products/sw/iosswrel/ps1828/products_tech_note09186a00800a70f2.shtml

this link might help

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