z/OS Communications Server
  Border Node Section


Verify this host is a Border Node and what BNDYN is coded to.

     D NET,VTAMOPTS,OPT=BN
     D NET,VTAMOPTS,OPT=BNDYN
                      
         
           If BN=YES
                 Continue to the next question.
 
           If BN=NO
                  Go to the host in this NETID that is the  Border node for the DLU. BN=YES
                   should be coded in this VTAM.


Did the IST664I message indicate a REAL DLU with a NETID different from this NETID?

            Go to this section.

Did the IST664I message indicate REAL DLU and the NETID is the same as this NETID?

            Go to this section.

Did the IST664I message indicate an ALIAS DLU?

            Go to this section.