SHAREPORT

Specifying the SHAREPORT parameter on the PORT statement in the TCP/IP profile enables a group of servers to listen on the same port, and thereby share the incoming workload. As new connections are received, the number of active connections is evenly balanced across the available servers using a weighted, round-robin distribution based on the Servers' accept Efficiency Fractions (SEFs). Specifying the SHAREPORTWLM parameter on the PORT statement enables connections to be distributed in a weighted, round-robin fashion based on the WLM server-specific recommendations modified by the SEFs. For more information on SEFs, see Target server connection setup responsiveness monitoring.

Use the same considerations concerning application type to determine the type of port sharing distribution to use. If the shared port is a sysplex distributed port and WLM server-specific weight is the distribution method that is being used by the distributor, code the SHAREPORTWLM paremeter on each target's PORT statement to take advantage of the WLM server-specific recommendations when connections are received at the target. Otherwise, use the SHAREPORT parameter on the PORT statement.