Our both 24X10 TR Line cards got powered off because of following error messages and the only way we could bring them up was rebooting ASR9904 router manually . I do not know the reason if it is a power problem or a bug or something else. We did not have any electricity problem at all.
I want to know what this type of problem is and how to fix it for the future
ce_switch_srv: %PLATFORM-CE_SWITCH-6-UPDN : Interface 3 (NC_3) is down ce_switch_srv: %PLATFORM-CE_SWITCH-6-UPDN : Interface 4 (NC_4) is down ce_switch_srv: %PLATFORM-CE_SWITCH-6-UPDN : Interface 3 (NC_3) is down ce_switch_srv: %PLATFORM-CE_SWITCH-6-UPDN : Interface 4 (NC_4) is down
shelfmgr: %PLATFORM-SHELFMGR-1-NO_POWER_AVAIL : Node 0/0/CPU0 is kept in unpowered state because of insufficient power. shelfmgr: %PLATFORM-SHELFMGR-6-NODE_STATE_CHANGE : 0/0/CPU0 A9K-24x10GE-TR state:UNPOWERED shelfmgr: %PLATFORM-SHELFMGR-1-NO_POWER_AVAIL : Node 0/1/CPU0 is kept in unpowered state because of insufficient power.
this would tell us if the system is providing enough power for the line cards.
this tells us there are errors on the fabric links from the LC towards the RSP, i would re-seat this card to see if these errors clear " %PLATFORM-CROSSBAR-1-SERDES_ERROR_LNK1" if they do not, it would be best to open a TAC case.
possibly we may need to re-place the card if its still not clearing.
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loadbalancing is one of the more complex items in hardware forwarding. of course we have talked about it many years on cisco live (id 2904) with ever incrementing more detail. and there is the support forum article on loadbalancing.
IntroductionArchitecture Building BlocksIOS-XR RoutersConfigurationPerformance VerificationOptimizationStrict timerSome more verificationThe CollectorInfluxDBDatabase statistics and HealthClosing comments
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