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Cisco Bug: CSCuo80271 - ASR1k: if IOS vers. don't match on RP's, state shouldn't be Standby Hot

Last Modified

Jan 29, 2017

Products (17)

  • Cisco IOS
  • Cisco 7206 Router
  • Cisco 7301 Router
  • Cisco ME 3600X-24TS-M Switch
  • Cisco 7206VXR Router
  • Cisco 7204 Router
  • Cisco 7202 Router
  • Cisco 7600 Series Route Switch Processor 720 with Multilayer Switch Feature Card
  • Cisco 7600 Series Route Switch Processor 720 with 10 Gigabit Ethernet Uplinks
  • Cisco ME 3600X-24FS-M Switch
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Known Affected Releases


Description (partial)

When the main and standby RP in an ASR1k are loaded with different, incompatible IOS-XE versions, the redundancy state of the RP's can still be "Standby Hot".
The problem is that when the main RP restarts the standby RP cannot take over, shown in the log with the message:
%REDUNDANCY-3-IPC: IOS versions do not match

Main and standby RP in the ASR1k are loaded with different IOS-XE versions and the main RP makes an unexpected restart.
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