gtps2m0oACF/SNA Data Communications Reference

Activating LU-LU Sessions with TPF

An LU-LU session must be established before data can pass between a TPF application and a logical unit. The following list different ways to establish a session:

  1. A secondary LU is defined as permanently in session with a TPF application (VTAM AUTOLOG facility).
  2. A remote LU requests a session with a TPF application from its control point.
  3. The TPF operator requests a session be established using the ZNETW ACT command. (This is valid only for APPL to APPL sessions.)
  4. A TPF/APPC session is activated with an ALLOCATE request. See TPF Advanced Program-to-Program Communications for more information about TPF/APPC.