Troubles with OSPF routing over an ATM interface. After about 15 - 20 minutes the hellos from one of my routers disappear (w/ attendant chaos). Tried swapping boards, same problem. I have three routers (7000 - 11.2.15 & 2 RSP7000s - 12.2.x) running classical IP through a Madge Collage 750 ATM switch. The 7000 and the hub RSP7000 work fine. The second RSP7000 works fine immediately after a "shut/no shut" on the interface, but after 15 minutes I no longer see hello messages from it at the hub router. I still see hello messages from the hub RSP7000 router at the affected one. It's hard to tell for sure but it appears that the svc is reset at about the same time - may be incidental. ILMI works fine. This is a pretty plain configuration - I'm using "ospf priority" and "ospf broadcast" on the atm sub-if. Another thing that puzzles me is the fact that the highest "ospf priority" does not seem to set the DR. Rather it still seems to follow the highest loopback address. Reading books like Doyle led me to believe it would follow the highest priority. Seems pretty brutal to have to reboot an entire network to get the ATM DR in the correct location. Thoughts???
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