Disconnect from the EZBEPORT structure

The following are cases in which VTAM® might disconnect from the structure :

A VARY NET,CFS,ACTION=DISCONNECT operator command.
A rebuild fails and the original structure is not accessible.
An internal error within VTAM occurs.

Disconnect is viewed as a much longer loss of coupling facility access than rebuild. When VTAM reconnects, it notifies each TCP/IP stack using the EZBEPORT structure that a reconnect has occurred, and the structure must be repopulated. Each TCP/IP stack sends updated information about the ephemeral ports VTAM has allocated to it to VTAM to be written to the EZBEPORT structure.