Default Parameters for IGELTcpTrafficTest

This test monitors the TCP protocol traffic to and from an IGEL Endpoint, and particularly monitors retransmissions.

This page depicts the default parameters that need to be configured for the IGELTcpTrafficTest.

• The TEST PERIOD list box helps the user to decide how often this test needs to be executed.

• To obtain the ‘inside view’ of performance of the IGEL Endpoints - i.e., to measure the internal performance of the IGEL Endpoints - this test uses a light-weight Endpoint Agent software deployed on each of the IGEL Endpoints. The Endpoint Agents collect performance metrics from the IGEL Endpoints and communicate the metrics to the eG remote agent using TCP protocol. Accordingly, by default, INSIDE VIEW USING parameter is set to TCP.

• Since this test runs for an ‘IGEL Endpoints’ component, REPORT BY USER flag is set to Yes by default.

• Since this test runs for an ‘IGEL Endpoints’ component, REPORT POWERED OS flag is set to Yes by default.

• Since this test runs for an ‘IGEL Endpoints’ component, IS CLOUD VMS flag is set to Yes by default.

• In the SEGMENTS SENT MIN text box, specify the minimum threshold for the number of segments sent/transmitted over the network. The default value is 25; in this case, the test will compute/report the TCP retransmit ratio measure only if more than 25 segments are sent over the network - i.e., if the value of the Retransmit_ratio measure crosses the value 25. On the other hand, if the Retransmit_ratio measure reports a value less than 25, then the test will not compute/report the Retransmit_ratio measure. This is done to ensure that no false alerts are generated by the eG Enterprise system for the Retransmit_ratio measure. You can change this minimum threshold to any value of your choice.

• Once the necessary values have been provided, clicking on the UPDATE button will register the changes made.

When changing default configurations of tests, the values with “$” indicate variables that will be replaced by the eG system according to the specific server being managed - for instance, $hostName is the host/nickname of the target host, $port is the port number of the server being monitored. E.g., for a server xyz:80, $hostName will be changed automatically by the eG manager to “xyz*” and $port will be changed to “80” when configuring a test.