HP 3000 Manuals

Using SNA IMF Pass Thru

Chapter 7  Pass Thru Over X.25 

Terminals and printers connected by an X.25 networkto an HP 3000 can use
Pass Thru as if they were directly connected to the HP 3000.  You can
invoke Pass Thru from a remote PAD terminal, or you can log onto a
directly connected terminal and start Pass Thru on someone else's remote
device.


NOTE  When you configure PAD devices, the nodename of each PAD device is
      explicitly mapped to an LDEV on the HP 3000.  This LDEV-to-nodename
      mapping allows you to start Pass Thru on someone else's remote
      terminal by issuing an outgoing call from the HP 3000 and
      specifying the LDEV of the terminal you wish to acquire. 

      However, when you start Pass Thru from a remote terminal by issuing
      an incoming call to the HP 3000, the LDEV-to-nodename mapping is
      ignored, and your call is given to the next available LDEV in a
      pool of LDEVs reserved for incoming calls.

      An error occurs if you issue an outgoing call to a PAD device that
      has already issued an incoming call and is engaged in a session.
      The LDEV that is explicitly configured for that PAD device is
      available, but the device itself is connected to an LDEV from the
      pool.  You must wait until the remote device terminates the current
      session before you can start another session.


Running Pass Thru over an X.25 network differs between MPE V and MPE XL
systems.  The sections "Configuration for SNA IMF/V" and "Configuration
for SNA IMF/XL," later in this chapter, describe the different hardware
and software requirements and configuration .


NOTE  Running Pass Thru over X.25 is supported only for SNA IMF. It is
      not supported for IMF/3000 (BSC or SDLC).

MPE/iX 5.0 Documentation