Router Rebooting Issue

[Marius Gunnerud]

We have a router that is experiencing high traffic utilization on the interfaces followed by a reboot.  This has happend twice now in 2 days with the same log message both times as below. 

I am assuming that the configured from console by console is the router doing a hardware self check or something similar?

Anyone come across this issue before?  Possible RMA perhaps?         

Feb 14 14:12:29: %SYS-6-CLOCKUPDATE: System clock has been updated from 13:12:29 UTC Thu Feb 14 2013 to 14:12:29 CET Thu Feb 14 2013, configured from console by console.

Feb 14 14:12:29: %SYS-6-CLOCKUPDATE: System clock has been updated from 14:12:29 CET Thu Feb 14 2013 to 14:12:29 CET Thu Feb 14 2013, configured from console by console.

Feb 14 14:12:30: %SYS-5-CONFIG_I: Configured from memory by console

Feb 14 14:12:30: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback0, changed state to up

Feb 14 14:12:30: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback9, changed state to up

Feb 14 14:12:30: %LINEPROTO-5-UPDOWN: Line protocol on Interface Tunnel10, changed state to down

Feb 14 14:12:30: %LINEPROTO-5-UPDOWN: Line protocol on Interface Tunnel12, changed state to down

Feb 14 14:12:31: %LINK-3-UPDOWN: Interface GigabitEthernet0/0, changed state to down

Feb 14 14:12:32: %LINK-5-CHANGED: Interface GigabitEthernet0/1, changed state to administratively down

Feb 14 14:12:32: %LINK-5-CHANGED: Interface GigabitEthernet0/2, changed state to administratively down

Feb 14 14:12:32: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0, changed state to down

Feb 14 14:12:36: %LINK-3-UPDOWN: Interface GigabitEthernet0/0, changed state to up

Feb 14 14:12:38: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0, changed state to up

Feb 14 14:12:40: %SYS-5-RESTART: System restarted --

[patrick.preuss]

Can you post a "show version" ? Should state the reason for the reload.

[Marius Gunnerud]

I have checked that, was the first thing I checked.  It states normal reload.

NIC-LOK-41#sh ver
Cisco IOS Software, C3900e Software (C3900e-UNIVERSALK9-M), Version 15.1(4)M4, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2012 by Cisco Systems, Inc.
Compiled Tue 20-Mar-12 22:07 by prod_rel_team

ROM: System Bootstrap, Version 15.1(1r)T4, RELEASE SOFTWARE (fc1)

NIC-LOK-41 uptime is 1 hour, 36 minutes
System returned to ROM by power-on
System restarted at 13:56:55 CET Thu Feb 14 2013
System image file is "flash:c3900e-universalk9-mz.SPA.151-4.M4.bin"
Last reload type: Normal Reload

This is what is so strange.

[Marius Gunnerud]

There is also a CPU spike both times before the reboot.

[Shirshendu Nandi]

Connect a console to the router a log all messages on Console using logging console command,It wil help you to log all messages before and during realod

Check for crashinfo in your flash or disk0 and send it to cusco TAc for analysis

I  somehow feel its not happening for utilisation. Can be memory issue / or IOS  crash

BTW whats your router model

[Marius Gunnerud]

The router is a 3925.

There are no crash dumps in the flash.  Connecting to the console for an extended duration is not really an option since this is in a datacenter and there are only certain people that have physical access to it.  If worse comes to worse then I guess I will need to whip someone to go out there and do it .

I'll open a TAC case.  Will post back if we find anything.

[Shirshendu Nandi]

World all DC have same problem .We the People responsible for maintance have least right to access :-).

Cisco TAC is best Option followed BY RMA or upgrade /downgrade . Can be a known BUG as well

[Richard Burts]

To answer the question in the original post - the message about configured from console by console is just indicating that the router was able to read the startup config and apply the configuration.

HTH

Rick

[Shirshendu Nandi]

Has TAC reverted on any known bug in version 15.1 M4.If its impacting more pls consider RMA as we have not much choice to troubleshoot hardware issue in This forum

Alternatively if can try below

If its a new upgradation to 15.1 consider downgradation to a stable  version 12.2 or 12.3