RNAT Test

With ‘Reverse Network Address Translation’ (RNAT), the NetScaler replaces the source IP addresses in the packets generated by hosts in the configured subnet with the configured, NAT IP address(es). Typically, RNAT is used to allow servers configured with private non-routable IP addresses to initiate connections to the Internet.

Using this test, you can measure the load imposed by the RNAT sessions to the NetScaler appliance.

Target of the test : A NetScaler VPX/MPX

Agent deploying the test : A remote agent

Outputs of the test : One set of results for the NetScaler appliance being monitored.

Configurable parameters for the test
Parameter Description

Test Period

How often should the test be executed.

Host

The IP address of the host for which the test is being configured.

NetScaler Username and NetScaler Password

To monitor a NetScaler device, the eG agent should be configured with the credentials of a user with read-only privileges to the target NetScaler device. Specify the credentials of such a user in the NetScaler Username and NetScaler Password text boxes.

Confirm Password

Confirm the NetScaler Password by retyping it here.

SSL

The eG agent collects performance metrics by invoking NITRO (NetScaler Interface Through Restful interfaces and Objects) APIs on the target NetScaler device. Typically, the NITRO APIs can be invoked through the HTTP or the HTTPS mode. By default, the eG agent invokes the NITRO APIs using the HTTPS mode. This is why, the SSL flag is set to Yes by default. If the target NetScaler device is not SSL-enabled, then the NITRO APIs can be accessed through the HTTP mode only. In this case, set the SSL flag to No.

Measurements made by the test
Measurement Description Measurement Unit Interpretation

Active sessions

Indicates the number of current RNAT active sessions

Number

This is a good indicator of the RNAT session load on the NetScaler appliance.

Request for connections sent

Indicates the number of requests for connections that were sent during the RNAT sessions since the last measurement period.

Number

 

Data received

Indicates the number of bytes that were received during RNAT sessions since the last measurement period.

MB

These measures are good indicators of the load imposed by the RNAT sessions on the NetScaler appliance.

Data transmitted

Indicates the number of bytes that were transmitted during RNAT sessions since the last measurement period.

MB

Packets received

Indicates the number of packets that were received during RNAT sessions since the last measurement period.

Number

These measures are good indicators of the load imposed by RNAT sessions on the NetScaler appliance.

Packets transmitted

Indicates the number of packets that were transmitted during RNAT sessions since the last measurement period.

Number