Preview Tool

Cisco Bug: CSCun17492 - C4k %Timer Expired messages - While executing show tech

Last Modified

Feb 20, 2020

Products (1)

  • Cisco Catalyst 4000 Series Switches

Known Affected Releases

15.2(1)E 15.2(1.3)

Description (partial)

%Timer expired message appears while executing 'show tech'.  Additionally, the expired message may appear when executing 'show switch virtual' commands or anything subset of commands that relies on remote-tty sessions between the active and standby supervisors.

This issue is caused by a remote vty session in a stuck state between the active and standby supervisor.  As a result, any further communication between the supervisors will fail.  

This has been seen when telnet/ssh sessions are abruptly killed while executing commands.
Bug details contain sensitive information and therefore require a account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.