TN3270 Configuration Task List

TN3270 Configuration Task List

The following sections describe how to configure TN3270 server support on the CIP. Not all tasks are required. Refer to “TN3270 Configuration Example” for configuration examples.

Note The TN3270 server is configured on an internal LAN interface in the CIP, which is port 2 of a CIP. Port 0 and port 1 represent physical interface ports; port 2 is a “virtual” port and is always reserved for the internal LAN interface.

Task List for Multiple APPN Hosts

When the host site uses APPN and the TN3270 server can reach multiple hosts, we recommend you use the SNA Session Switch feature and configure your PUs under DLUR. In this instance, perform the following tasks:

Configure SNA Support

Configure TN3270 Server

Configure DLUR

Configure SAPs under DLUR

Configure PUs under DLUR

Monitor the TN3270 Server

Note You can also use DLUR to reach a mix of APPN and non-APPN hosts. The host owning the PUs must be an APPN network node that also supports the subarea (that is, an interchange node). When an SLU starts a session with any of the APPN hosts, it can use session switching to reach that host directly. When it starts a session with a non-APPN host, the traffic will be routed through the owning host.

Task List for Non-APPN Hosts

When the host site does not use APPN, or you have a single APPN host, you configure your PU parameters for a directly connected host. In this instance, perform the following tasks:

Configure SNA Support

Configure TN3270 Server

Configure PU Parameters on the TN3270 Server

Monitor the TN3270 Server

Configure SNA Support

CIP SNA support (CSNA) must be configured prior to configuring TN3270 support. Refer to the section “Configure IBM Channel Attach for CSNA Support,” in the “Configuring IBM Channel Attach” chapter of Bridging and IBM Networking Configuration Guide .

After you have configured CSNA support, proceed with TN3270 configuration.

Configuring TN3270 Server on the Channel Interface Processor 13

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Cisco Systems 11.0 BT manual TN3270 Configuration Task List, Task List for Multiple Appn Hosts, Task List for Non-APPN Hosts