Requirements for an APPN connection network

To participate in an APPN connection network, a system needs to have a CP-CP session established with a network node and a model controller description configured. Other points to consider:

• A System/36™ does not support connection networks, so an iSeries end node that wants to participate in a connection network must not have a System/36 listed as a possible server in its network server list. Requirements to define this connection network are:
  • Supply the connection network identifier (CNNNETID) and connection network control-point name (CNNCPNAME) in the model controller description that is associated with the token ring, or Ethernet line description.
  • All systems connected to the same LAN (that want to participate in the connection network) must specify the same value for their CNNNETID and CNNCPNAME parameters.
• For a connection network defined on a LAN, the local address that is used is a combination of the LAN adapter address (taken from the token ring or Ethernet line description) and the source service access point (SSAP) (taken from the model controller description that describes the connection network).
• Network nodes have the ability to establish CP-CP sessions that are initiated by other nodes on the LAN. The destination systems with which CP-CP sessions need to be established can be supplied in the model controller description by specifying the RMTNETID, RMTCPNAME, and ADPTADR parameters.