z/OS Communications Server
Start Trouble Shooting Section





Is the OLU on a Subarea host or on a Network Node?

     YES, Continue to the Network Node Section.

Is this OLU on an End Node?

     YES, Continue on this page
   
Since this is an End Node this VTAM can't be a border node. We can at least verify that VTAM is searching APPN on this host by
looking at the failing messages.
    
    What is the sense code for ISTAPNCP in the IST895I message? If it is a sense code other then 08400007 then investigate the
    meaning of the specific sense code in the IP and SNA Codes.
                                                    
     If ISTAPNCP is not in the IST895I message:    


     Issue a D NET,NETSRVR,SCOPE=ALL

          Get the current Network Node Server name.

     Issue a D NET,ID=current_Network_node_server_name,E

           Verify the IST635I shows an active CONWINNER and CONLOSER session to the NNS.

            IST635I SSCP1A   ACTIV/CP-S F6ABEEC38077021A   0006 0001  0  0 NETA
            IST635I SSCP1A   ACTIV/CP-P EAABEEC37D76FABF 0001 0006  0  0 NETA

      If this is all OK then we can move to the Network Node Server and continue in the Network Node section: