This specified the format to use when converting NSAP addresses to their
 text representation for display.

     NSAP_FORMAT DNA
     NSAP_FORMAT OSI

 This causes the appropriate format to be used:

     DNA format:  <afi>:<idi>:<predsp>-<locarea>:<nodeid>:<nsel>
     OSI format:  <afi><idi>+<predsp><locarea><nodeid><nsel>

 If not specified, the default NSAP format is used.  This default can be
 displayed or changed using the SHOW or SET DEFAULT commands.