Documenting the TDMF TCP/IP port numbers

To ensure that the chosen PORT number is identified for TDMF IP use, the port number to be used for TDMF IP needs to be documented in the ETC.SERVICES data set. The ETC.SERVICES data set is used to document all port numbers that are used during product installation.

About this task

The TCP/IP port number is specified in the PORT parameter of the REMOTE control statement, as described in APPROVAL/NOAPPROVAL.

Procedure

To document the TDMF TCP/IP port number:

  1. Add a statement for each of the port numbers that is being set aside for use by TDMF TCP/IP; these statements need to be in the following format: 
    TDMF nnnnn/tcp   # TDMF IP Session 1, Port 1
TDMF nnnnn+1/tcp # TDMF IP Session 1, Port 2
TDMF nnnnn+2/tcp # TDMF IP Session 2, Port 1
TDMF nnnnn+3/tcp # TDMF IP Session 2, Port 2
    Note: Including this statement in the ETC.SERVICES data set does not reserve the port numbers, but only documents their use.
  2. If an installation of any product restricts port number usage, the mechanism that is used to implement that restriction must be modified to allow TDMF TCP/IP port access and usage.
  3. If PROFILE.TCPIP is used to reserve the TDMF port assignment, do not use the BIND keyword on the TDMF port number to force usage of a specific IP address.