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Cisco Bug: CSCul57329 - NetFlow - Inconsistencies wrt byte counter stats in a few cases

Last Modified

Aug 07, 2019

Products (3)

  • Cisco Nexus 1000V Switch for VMware vSphere
  • Cisco Nexus 1000V Switch
  • Cisco Application Virtual Switch

Known Affected Releases

5.2(1)SK1(2.0.506) 5.2(1)SK1(3.1) 5.2(1)SV3(1.1)

Description (partial)

The byte counter of a NetFlow flow wraps around just before reaching 4 GB, without exporting the flow to the collector, losing the byte counter stats from before the wrap around.

Both of the following conditions must be met:
1) a flow record with short byte counters (i.e. "collect counter bytes") is configured on an interface
2) a flow on that interface counts 4 GB of traffic before hitting the inactive or active timeout
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