Last Modified: Sep 13, 2023
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
11.6.2 HF1
Fixed In:
11.6.0, 11.5.1 HF5
Opened: Apr 25, 2014 Severity: 3-Major Related Article:
K16346
The PVA statistics reported by TMSH can incorrectly report bits and packets processed counts of about 34 billion and 16 million, respectively. This failure is intermittent.
Incorrect statistics. Data flow through the BIG-IP is not impacted.
There are no specific conditions leading to this problem.
None
PVA statistics for each flow are tracked in hardware and software. The software copy of the hardware flow statistics was not correctly reset when flows were evicted from the PVA hardware and then subsequently reloaded back into the hardware. This eventually resulted in a numeric underflow in the statistics counters that were then displayed with very large positive values. This issue is now fixed.