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Cisco Bug: CSCun32287 - SW: ASR1002-X ifHCInOctets can decrease before wrapping around.

Last Modified

Apr 17, 2019

Products (1)

  • Cisco ASR 1000 Series Aggregation Services Routers

Known Affected Releases


Description (partial)

Symptom:The maximum number of ifHCInOctets is 2^64-1 but this counter can decrease before reaching the maximum number.

Conditions:As part of investigation we found that total frame received from the mac is lesser then the previous read at 1sec interval. This counter are 32bit & expected to rollover but not so quick. 
last_hw_stats good frames=542789823
new_hw_stats good frames=542789822 -------->this value is wrong and its directly read from the ALTERA_TSEMAC

This issue is only seen on ASR1002-X running traffic on Builtin 1G ports.
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