Why does Cisco 3560 switch reboots every 20 min. after 802.1x config ? At first I thought the switch was faulty, and I replaced it. The replacement switch does the same thing.
Point it at a syslog server and get it to logg info to syslog so you can see what gets logged prior to the reboot.
While you're waiting, check the mem and CPU levels as time goes by leading up to the reboot. If you have an snmp-based monitoring tool, use that to watch cpu and mem.
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