VRF's would be one reason. I currently run 11 OSPF processes in a 7609 W/Sup 720's. Each VRF having it's own OSPF route table. They are small tables as they are used for backup configurations. When the primary interface dies, it starts routing over the backup interface. OSPF worked much more effectively by seeing the primary route go away and dynamically re-routing the data streams. Statics just were not doing the job.
I think the answer to the question is up until you fill the 256K routes and 64K MAC Address restrictions. I can't find anything that says concrete numbers on OSPF either.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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