Functionality

Server Option applications can receive requests from LAN clients and Client Option applications in either of the following ways:

• In a three-tier environment, using DirectConnect for z/OS Option access service or Transaction Router Service (TRS).

• In a two-tier environment, using TCP. See “Two-tier (gateway-less)” for more information on two-tier environments.

This section documents the following topics:

• Requests in a three-tier environment

• Requests in a two-tier environment

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