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Cisco Bug: CSCum72884 - Vrf config under Management interface lost on upgrading 4.1.2 to 4.2.4

Last Modified

Sep 20, 2018

Products (1)

  • Cisco Carrier Routing System

Known Affected Releases

4.2.4.BASE

Description (partial)

Symptom:
On upgrading to 4.2.4 from 4.1.2,  losing vrf config on standby-rp's MgmtEth.
RP/0/RP1/CPU0:Dec 17 14:21:29.491 EST: cfgmgr-rp[159]: %MGBL-CONFIG-4-FAILED : Some 'MgmtEth0_RP1_CPU0_0' Configuration could not be restored by Configuration Manager.  To view failed config(s) use the command - 'show configuration failed startup

' 

RP/0/RP0/CPU0:Dec 17 14:21:30.211 EST: cfgmgr-rp[159]: %MGBL-CONFIG-3-STARTUP : Configuration Manager will attempt to retry

 failed startup config in 25 seconds  

RP/0/RP1/CPU0:Dec 17 14:21:29.618 EST: cfgmgr-rp[159]: %MGBL-CONFIG-3-INCONSISTENCY_ALARM : module 0/RP1/CPU0: A configuration inconsistency alarm has been raised. Configuration commits will be blocked until 'clear configuration inconsistency' command has been run to synchronize persistent configuration with running configuration. 

RP/0/RP1/CPU0:Dec 17 14:21:29.821 EST: ifmgr[244]: %PKT_INFRA-LINK-3-UPDOWN : interface MgmtEth0/RP1/CPU0/0: Interface Mgmt

RP/0/RP0/CPU0:RK17-D2-PE42#sh conf failed startup 
Mon Dec 23 14:42:32.707 EST
!!14:20:49 EST Tue Dec 17 2013
!! SEMANTIC ERRORS: This configuration was rejected by 
!! the system due to semantic errors. The individual 
!! errors with each failed configuration command can be 
!! found below.
interface MgmtEth0/RP1/CPU0/0
 vrf MGMT
!!% 'RSI' detected the 'fatal' condition 'The interface's numbered and unnumbered IPv4/IPv6 addresses must be removed prior to changing or deleting the VRF'
!
end
 
RP/0/RP0/CPU0:RK17-D2-PE42#
Conditions:
This is a rare scenario which happens during upgrade. The MgmtEth interface has ipv6 address configured.
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