What is the default maximum-age of a Type 1 OSPF LSA? A router with ID 126.96.36.199 is on my multiaccess segment. I was logged on to 188.8.131.52 with log-neighbor-changes enabled; I powered 184.108.40.206 down and watched the adjacency vanish; but the 220.127.116.11 Link ID remained in the output of sh ip ospf database for at least 20 minutes.
How long is it really supposed to stay in there? What's the command to adjust?
I searched Cisco.com for "max-age OSPF" and only got results for Catalyst OS....
So that "every 1800 seconds" thingy is the "paranoid update," eh? But only the LSA owner (you mean originator?) sends it? 'Cause I had thought the paranoid update was when routers synchronize their _entire_ topology table with their neighbors.
I wonder what the purpose is of storing a Type 1 LSA for any length of time when the link is known to be down.
yes the originator is the LSA owner and the 1800 seconds.
Note: each LSA has its own age so they don't become too old all together.
Anyway the bandwidth usage is very low in comparison to RIP or IGRP.
What you have seen has been reported by other collegues.
My guess is that OSPF is able to detect that the router LSA is not connected anymore to the topology, so instead of having some node to take the role to purge it, it is simply left there to expire in silence.
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