Re: Trunk-downs between Cat-switches in constant intervalls
At the moment we have disabled the trunk in error; we are using port 1/1 instead of 1/2 on the cat5000. And the uplink is not connected to a cat6509 but to a cat5500, which works fine. This evening we'll go back to the old uplink.
The counters were cleared, but I looked the counters mentioned when we had the problem. Everything looked fine except:
The port 1/2 of the cat5000, which noted trunk down, had a lot of In-Discards (sho mac). I understand that, because the uplink-port of the cat6509 had still the status connected and therefore was transmitting frames.
Looking back in history, I had the experience with old Cat Supervisor type I having suddenly problems with fancy behaviour of the uplinks. I had to reboot the switch or change the board, if it happens twice.
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