z/OS Communications Server
NOTES




  1. BNDYN=LIMITED will only add an ADJACENT Border node to the Adjacent Cluster table if the NETID for that Border Node matches the NETID in the session request. If this border node does not have a direct connection to the other NETID then the session will fail unless the Border Node within this NETID that connects to that NETID is specifically added to the Adjacent Cluster Table.

  2. VTAM Start option SNVC for the Subnet Visit Count defaults to 3. If the DLU is more than 3 NETIDs away including this NETID the session will fail. SNVC can be over ridden on the ADJCLUST table. Any Border node on the search path can reduce the Subnet visit count by the SNVC definitions in that host but can not increase it.

  3. A DSME (Directory Services Management Exit) ISTEXCDM can be coded to control border node and or general APPN search logic. D NET,EXIT,ID=ISTEXCDM can be issued and will tell you if this exit is active.

  4. A CDRSC can be predefined in the OLU host with NETID so that VTAM picks the correct ADJCLUST table for the session. However this can add quite a bit of pre definition of CDRSCs. In VTAM release V1R4 and above you can now code the CDRSC on the Network Node servers. By adding keyword CPNAME to the CDRSC VTAM will now learn the
    NETID at the Network Node server and select the correct ADJCLUST for that NETID instead of the default table.