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Cisco Bug: CSCvt04632 - Nexus 93180YC-FX sends incorrect VIF value in NetFlow records for VXLAN flows

Last Modified

Oct 08, 2020

Products (1)

  • Cisco Nexus 9000 Series Switches

Known Affected Releases


Description (partial)

A Nexus 93180YC-FX that is configured as a leaf in a VXLAN BGP EVPN fabric and also configured to send NetFlow records for VXLAN traffic may send NetFlow flow records with an incorrect VIF value for VXLAN traffic. This can cause NetFlow collectors to display partial flow data (or not display relevant flow data at all, depending on the software).

This issue is most likely to be observed with a Nexus 93180YC-FX switch managed by Data Center Network Manager (DCNM) with the Network Insights for Resources (NIR) application installed.

1. This issue only affects Nexus 93180YC-FX model switches. No other model of switch is affected by this issue.
2. Nexus switch is configured as a leaf in a VXLAN BGP EVPN fabric.
3. Nexus switch is configured to export NetFlow records for VXLAN traffic.
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