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Cisco Bug: CSCvt83162 - Typhoon: 60 mins to start LC reload after 3 NP fast resets due to continuous Spy errs in NP dvr log

Last Modified

Sep 02, 2020

Products (1)

  • Cisco ASR 9000 Series Aggregation Services Routers

Known Affected Releases


Description (partial)

After 3 NP fast resets:
LC/0/6/CPU0:Mar 18 18:32:35.087 : prm_server_ty[310]: %PLATFORM-NP-3-ECC : prm_ser_check: Completed NP fast reset to successfully recover from soft error on NP 1.  No further corrective action is required.

LC reboot is expected:
LC/0/6/CPU0:Mar 18 18:32:38.201 : prm_server_ty[310]: %PLATFORM-NP-0-LC_RELOAD : NP1 had 3 fast resets within an hour, initiating NPdatalog collection and automatic LC reboot

But it happened one hour later:
RP/0/RSP0/CPU0:Mar 18 19:29:12.997 : shelfmgr[419]: %PLATFORM-SHELFMGR-6-NODE_CPU_RESET : Node 0/6/CPU0 CPU reset detected.

This one hour delay for the LC reload is a rare condition that only is only seen when the ECC corruption occurs in a particularly sensitive location in TM memory.    It is only seen on about 1% of cases where a Typhoon LC must be reloaded to recover from an ECC error.
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