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Cisco Bug: CSCta96267 - ISSU LOAD completion and stby RP readiness on instdir/insthelper restart

Last Modified

Jan 07, 2017

Products (1)

  • Cisco Carrier Routing System

Known Affected Releases


Description (partial)

Basic Description:
During an In-Service Software Upgrade [ISSU] operation on either a Cisco CRS-1, Cisco c12000, or Cisco ASR9k router, when certain processes are restarted simultaneously then the operation will enter an inconsistent state. 

The ISSU operation is seen to complete the ISSU Load phase, while the output of 'show redundancy' shows that the standby Route Processor is not yet ready.

Both the insthelper and instdir processes on the active Route Processor must restart simultaneously, either due to an error, or due to user-intervention, for this problem to be seen.
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