Documentation forNetFlow Traffic Analyzer
Analyzing network traffic and bandwidth is a key capability of Hybrid Cloud Observability Advanced and is also available in a standalone module, NetFlow Traffic Analyzer (NTA). Hybrid Cloud Observability Advanced and NTA are built on the self-hosted SolarWinds Platform.

What protocols does NTA support?

SolarWinds NTA collects and monitors interface-level flow data, and helps you identify consumers of bandwidth. Flow data comes to SolarWinds NTA using one of many protocols.

Selectively specifying monitored protocols can reduce the amount of NetFlow traffic that SolarWinds NTA processes, which improves performance. Specified protocols depend on the device type, as each device supports different types of protocols. Check your vendor's documentation to determine the correct protocols.

Difference between sampled and non-sampled flow:

  • Sampled flow: Collects less data and provides only a sample. This prevents the network from overloading.
  • Non-sampled flow: Collects all data.

SolarWinds NTA supports these flow-enabled devices:

Flow Supported Versions Sampled Flow Support

v1, v5 and v9

NetFlow version 9 is configured the same as NetFlow version 5, but uses a predefined template that is exported in separate flows. Flexible NetFlow is based on NetFlow version 9, but the fields are defined during configuration.

NetFlow v9 must have an appropriate template with all required fields.

v5 and v9

Some devices using IOS versions export flows without specifying that it is being sampled. NTA processes these flows as unsampled.
sFlow v2, v4, and v5 Supported



Some devices using JunOS versions export flows without specifying that it is being sampled. NTA processes these flows as unsampled.
IPFIX Supports IPFIX generated by ESX 5.1 and later, for IPv4 traffic.



v5 and v9


NetFlow Lite

Supported on the following devices:

  • Cisco Catalyst 2960-X
  • Cisco Catalyst 2960-XR
  • Cisco Catalyst 3560-CX
  • Cisco Catalyst 2960-CX
Cisco Wireless Controller NetFlow

Supported on the following devices with the ipv4_client_app_flow_record template:

  • Cisco 2504 WLC
  • Cisco 3504 WLC
  • Cisco 5508 WLC
  • Cisco 5520 WLC
  • Cisco Flex 7510 WLC
  • Cisco 8510 WLC
  • Cisco 8540 WLC
  • Cisco WiSM2
Not supported