Step 4: Update the VTAM application definitions

You must update the VTAM® definitions for the TN3270E Telnet server and any of the following applications that you configure on your system. You can find example VTAM definitions for each of these applications under their respective topics.

SNALINK
SNALINK LU6.2
TN3270E Telnet
X.25 NPSI Server

SEZAINST(VTAMLST) contains a sample of the VTAM definitions for TN3270E Telnet server applications. You should copy this member, update it, and add it to the ATCCONxx member of VTAMLST. This ensures that the TN3270E Telnet server applications are activated when VTAM is started.

Because the TCP/IP LU code cannot handle multiple concurrent sessions, you must code SESSLIM=YES for each TN3270E Telnet server LU defined to VTAM. Otherwise, if SESSLIM=NO, menu or session manager applications that use return session processing might cause session termination.