I have one 4507R switch at distribution.since last 2-3 days it is getting restarted automatically.when I saw the logs nothing significant.
00:00:03: %C4K_REDUNDANCY-6-INIT: Initializing as ACTIVE supervisor
00:00:23: %SPANTREE-5-EXTENDED_SYSID: Extended SysId enabled for type vlan
00:00:24: %C4K_IOSMODPORTMAN-6-MODULEONLINE: Module 1 (WS-X4516-10GE S/N: JAB094000CT Hw: 2.1) is online
00:00:24: %C4K_IOSMODPORTMAN-6-MODULEONLINE: Module 3 (WS-X4418-GB S/N: JAE0946Q3QU Hw: 1.2) is online
00:00:24: %C4K_IOSMODPORTMAN-6-MODULEONLINE: Module 4 (WS-X4418-GB S/N: JAE1041D4L7 Hw: 1.3) is online
*May 3 10:48:22: %SYS-6-CLOCKUPDATE: System clock has been updated from 07:48:22 UTC Sat May 3 2008 to 10:48:22 DST Sat May 3 2008, configured from console by console.
*May 3 10:48:24: %SYS-5-CONFIG_I: Configured from memory by console
*May 3 10:48:24: %SYS-5-RESTART: System restarted --
Cisco IOS Software, Catalyst 4000 L3 Switch Software (cat4000-I9K91S-M), Version 12.2(25)EWA4, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2005 by Cisco Systems, Inc.
Compiled Fri 23-Sep-05 13:24 by ssearch
*May 3 10:48:24: %SNMP-5-COLDSTART: SNMP agent on host BD-COMMON-4507-1 is undergoing a cold start
It says the clock is updated from console by console.Whereas nobody did anything.Once the clock is updated it restarts.
Another problem is when it restarts each time the uplinks connected to the access switches goes down & it doesnt come up. By changing to another port only the link comes up.
Can anybody advise what could be the reason ? And why the uplinks go down after each restart.
Thanks in Advance