![]() ![]() If you have the output of a show version command from your Cisco device, you can use Cisco CLI Analyzer to display potential issues and fixes. System image file is "flash:", booted via flash System restarted by watchdog timer expired at 09:26:24 UTC Mon Mar 27 2000 If you do not power-cycle or manually reload the router, the output of the show version command looks like this: Router# show version *** System received a Software forced crash *** Or %SYS-2-WATCHDOG: Process aborted on watchdog timeout, process = Exec Based on the situation, the router can reset itself, or recover from the failure and generate an error message in the console logs, which looks like this: *** Watch Dog Timeout *** This only occurs if something goes wrong. If a process is longer than it must be, the watchdog timer is used to escape from this process. If the timer is not reset, a trap occurs. The watchdog timer basically controls the time of each process. The CPU periodically resets a watchdog timer. Identify Watchdog TimeoutsĬisco processors have timers that guard against certain types of system hangs. Conventionsįor more information on document conventions, refer to the Cisco Technical Tips Conventions. If your network is live, make sure that you understand the potential impact of any command. All of the devices used in this document started with a cleared (default) configuration. The information in this document was created from the devices in a specific lab environment. Note: This document does not apply to Cisco Catalyst switches or MGX platforms, but only to Cisco routers. The information in this document is based on these software and hardware versions: ![]() Readers of this document should have knowledge of these topics: This document describes the cause of Watchdog Timeouts on Cisco routers, and explains how to troubleshoot them. ![]()
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