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I have a Cisco LAN. All Cisco 2924 switches (12), 3620 routers (2), and a whole lot of users.
Interestingly, the inside router splits our LAN into three completely separate LANs; 192.168.1.0/24, 192.168.10.0/24, and 192.168.30.0/24
Each LAN enters the 3620 on a separate FastEthernet port. After Dude runs for about an hour, I start getting double links between two of the directly connected switches. A little while later, it happens to another pair of directly connected switches, not always on the same LAN.
Really odd. This keeps happening, and if I clear the map, and restart the Discover process, all is well for the first hour. Then…
Is this a known issue? I could not find anything like this…
Arcadia.