How can I quickly determine whether a SNA application is APPC-capable?

You can determine whether or not a given SNA application is APPC-capable simply by looking at a SNA display of the application. The value of the APPC parameter (YES|NO) specified or defaulted on the GROUP or APPL definition statement in an application program major node is indicated in the message group that appears whenever a DISPLAY NET, ID=name command for the SNA application is issued.

For example, when you issue this command, message IST1938I indicates that APPL1 is APPC-capable :

D NET,ID= APPL1

  IST075I NAME = NETA.APPL1, TYPE = APPL
  IST486I STATUS= CONCT, DESIRED STATE= CONCT
  IST1447I REGISTRATION TYPE = CDSERVR
  IST977I MDLTAB=***NA*** ASLTAB=***NA***
  IST861I MODETAB=***NA*** USSTAB=***NA*** LOGTAB=***NA***
  IST934I DLOGMOD=***NA*** USS LANGTAB=***NA***
  IST1632I VPACING =  7
  IST1938I APPC = YES
  IST597I CAPABILITY-PLU INHIBITED,SLU INHIBITED,SESSION LIMIT NONE
  IST231I APPL MAJOR NODE = APPL1A
  IST654I I/O TRACE = OFF, BUFFER TRACE = OFF
  IST1500I STATE TRACE = OFF
  IST271I JOBNAME = ***NA***, STEPNAME = ***NA***, DSPNAME = ***NA***
  IST228I ENCRYPTION = OPTIONAL , TYPE = DES
  IST1563I CKEYNAME = APPL1 CKEY = PRIMARY CERTIFY = NO
  IST1552I MAC = NONE MACTYPE = NONE
  IST1050I MAXIMUM COMPRESSION LEVEL - INPUT = 0, OUTPUT = 0
  IST1633I ASRCVLM = 1000000
  IST1634I DATA SPACE USAGE: CURRENT = ***NA*** MAXIMUM = ***NA***
  IST171I ACTIVE SESSIONS = 0000000000, SESSION REQUESTS = 0000000000
  IST314I END