The Agent Port is used for communications between the Sybase IQ plug-in and the Sybase IQ Agent, which must be running on the given host.The Agent Port number should be different from the server’s Port Number. To view port numbers:
On Windows, use the Event Viewer in Control Panel > Administrative Tools.
On UNIX, use the stop_asiq -agent command.
The Start Server Wizard looks for the agent running on the default port (1099) first, then the value of the environment variable ASIQPORT, if set, and then checks to see if the user has registered a port with the server name. If none of these supplies a usable port number for the Agent, the Start Server Wizard displays the Agent Port field on the Connection Parameters form for you to fill in.
You can start Sybase Central Java Edition with the runtime setting,-DASIQPORT=####, and this value is checked after the default 1099. If you don’t specify a value, Sybase Central defaults to ASIQPORT, if set.