NV Test Manager settings

This section describes the settings that apply when you run a test run from NV Test Manager.

To access these settings, click the Settings tab in NV Test Manager.

Make sure to click Save to apply the changes for each setting you modify.

Active adapter

Shows the NIC [network interface card] to which network impairments are applied when you run a test.

If more than one NIC is installed on the NV Test Manager computer, make sure to stop any tests that are running on NV Test Manager before selecting a different Active Adapter from the list.


HTTP analysis to be conducted on port(s). Specify the ports on which to perform HTTP analysis, separated by commas.

Note: For HTTPS analysis, configure the proxy settings below.

Packet capture

Network Virtualization settings for capturing and storing network packets that are transmitted across the network.

  • Quick Test. For each flow, you can specify whether to capture packets. If you want to use transactions in the test or perform detailed analysis of the test results, you must enable NV Test Manager to capture packets.
  • Concurrent test mode. NV Test Manager captures packets even if packet capture is set to “OFF.” This enables packets to be captured in subsequent concurrent tests, if needed.

Total packet list size

The maximum buffer size that is available for storing packet lists.

The packet list size cannot be more than 25% of the available RAM on the machine.

Possible values: 1-1,000 MB

Default: 300 MB

Capturing mode

Specifies what happens when the total packet list size is reached.

  • Cyclic. (FIFO). Deletes the oldest packets to free up buffer space for the new packets.
  • Non-cyclic. Packet capturing stops when the total packet list size is reached.

Default: Cyclic

Latency compensation

Instructs Network Virtualization to adjust latency impairments to compensate for extraneous network latency that occurs, for example, between the application peer and NV Test Manager.

Enable this option mainly when NV Test Manager is located off-premises, such as at a remote facility or on the cloud.

Possible values: On/Off

Default: Off

NV Proxy server

Enable proxy

Enables HTTP/S-based application traffic to be routed through Network Virtualization.

You may also need to enable NV as a proxy in other situations to force your application to go through Network Virtualization, for example, when testing mobile web applications running on a mobile device.

Note: Using a proxy adds a slight delay to forwarded HTTP(S) traffic.

To analyze HTTPS traffic, do all of the following:

  • Configure this NV Proxy server setting.
  • Select the Enable proxy check box for each test to be run using the NV proxy.
  • Configure the client machine to use the NV proxy, as described in Setting up the testing environment.

Instructs Network Virtualization to authenticate connecting clients using HTTP basic authentication, ensuring that connecting clients are valid NV Test Manager users.

Listening port The port number on the NV Test Manager machine.

Possible values: 1-65534

Default: 8888

Decrypt and analyze secure (SSL) communication

  • Select this option to run the proxy in man-in-the-middle (MITM) mode, decrypting SSL data. This enables Network Virtualization to analyze HTTPS traffic and generate an NV Insights report afterward.

  • Clear this option to run the proxy in tunneling mode, which routes the application traffic through Network Virtualization without analyzing HTTPS communication.

    If the application under test uses HTTP Public Key Pinning (HPKP), clear this check box.

Proxy chaining

Required if the application server is in the cloud and NV Test Manager is behind a corporate proxy.

To do this, enter the following:

  • Upstream proxy hostname/IP. The hostname or IP of the upstream proxy.
  • Upstream proxy port. The port of the upstream proxy.

    Possible values: 1-65534

    Default: N/A

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