HP 3000 Manuals

SNA NRJE Node Manager's Guide

Starting a Workstation 

Once you have created the corresponding stream job files, you can start
up the workstations.  To use an SNA NRJE workstation, you must initiate
an LU-LU session between an HP 3000 LU (the secondary LU) and a host LU
(the primary LU). An NRJE LU-LU session is initiated by the LU in the HP
3000 node, with the MPE command NRJECONTROL START or the NRJE command
STARTWS (see Chapter 6 of this manual).  The issued command causes an
INITiate-SELF (INIT-SELF) request to be sent to the SSCP.

In processing the INIT-SELF request, the SSCP determines if the host LU
is accepting session-initiation requests.  The SSCP then sends a Control
INITiate (CINIT) request to the host LU. The host LU then sends a BIND
request to the HP 3000 LU. The BIND protocols specified in the request
must be accepted by the HP 3000.  If the protocols are acceptable, the HP
3000 LU sends a positive response, and the LU-LU session is established.
The host LU sends a SESSion STarted (SESSST) request to notify the SSCP
that the session has been established.  The host LU sends a Start Data
Traffic (SDT) request to the HP 3000 LU, to allow data requests to be
transmitted.  Figure 4-1 shows how an NRJE LU-LU session is initiated.


          Figure 4-1.  SNA NRJE LU-LU Session Initiation 

MPE/iX 5.0 Documentation