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Cisco Bug: CSCtc02912 - MCL issue with upgrade router in SSO mode from 12.2SX to 12.2SR

Last Modified

Feb 15, 2018

Products (1)

  • Cisco 7600 Series Routers

Known Affected Releases

12.2(32.8.11)SX200 12.2(33)SRC4 12.2SXH 12.2SXI 12.2XJC

Description (partial)

   Symptom: when upgrading from 12.2(18)SX to 12.2(18)SR and router is 
 configured for SSO mode and using a router reload with new 12.2(18)SR image 
 on disks, the Standby reloads to RPR mode if it detects a MCL errors seen 
 using the command
   ""show redundancy config-sync failures mcl"
   Conditions: the router has to have a Linecard which require a FPD upgrade 
  during the upgrade from SX image to a SR image and has HSRP type track 
 command referencing an interface from that linecard
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