Metrics (Session Count, Total Traffic, Flow Packet Count) in NAT Rule Statistics show 0 in Aria Operations for Networks

Products

• VCF Operations for Networks

Issue/Introduction

• Metrics for NAT Rule Statistics widget in Aria Operations for Networks (AON) shows 0:

   

 

• While in NSX, some metrics are available for the same rules:

   

• The following API also returns 0:

 curl -k -u '<username>:<password>' https://<nsx_manager>/api/v1/transport-nodes/<transport_node_uuid>/statistics/nat-rules

{
  "transport_node_id" : "<transport_node_uuid>",
  "active_sessions" : 0,
  "total_packets" : 0,
  "total_bytes" : 0
}

Environment

Aria Operations for Networks 6.x

 

Resolution

This is seen in AON but caused by a known issue in NSX. To resolve the issue, upgrade NSX to 4.2.0 or later.