TCP Connection Test

This test reports various statistics pertaining to TCP connections to and from a host, from an external perspective.

Target of the test : Any host

Agent deploying the test : An external agent

Outputs of the test : One set of results for every configured port name.

Configurable parameters for the test
Parameter	Description
Test Period	How often should the test be executed.
Host	Host name of the server for which the test is to be configured.
PortNo	Enter the port to which the specified host listens.
TargetPorts	Specify either a comma-separated list of port numbers that are to be tested (eg., 80,7077,1521), or a comma-separated list of port name:port number pairs that are to be tested (eg., smtp:25,mssql:1433). In the latter case, the port name will be displayed in the monitor interface. Alternatively, this parameter can take a comma-separated list of port name:IP address:port number pairs that are to be tested, so as to enable the test to try and connect to Tcp ports on multiple IP addresses. For example, mysql:192.168.0.102:1433,egwebsite:209.15.165.127:80.
IsPassive	If the value chosen is Yes, then the server under consideration is a passive server in a cluster. No alerts will be generated if the server is not running. Measures will be reported as “Not applicable’ by the agent if the server is not up.

Measurements made by the test
Measurement	Description	Measurement Unit	Interpretation
Availability	Whether the TCP connection is available	Percent	An availability problem can be caused by different factors – e.g., the server process may not be up, a network problem may exist, or there could be a configuration problem with the DNS server.
Response time	Time taken (in seconds) by the server to respond to a request.	Secs	An increase in response time can be caused by several factors such as a server bottleneck, a configuration problem with the DNS server, a network problem, etc.