Functional Description - HP 30292B Manual

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SNA NRJE/iX requires the installation and use
of SNA/SDLC Link/iX (30291A), SNA/Token
Ring Link/iX (J2249A, requires MPE/iX
Release 5.0 or later) or SNA/X.25 Link/iX
(30298A), SNA NRJE/V requires SNA Link/V
(30246A). SNA/SDLC Link/iX, SNA/Token
Ring Link/iX, SNA X.25 Link/iX, and SNA
Link/V (referred to jointly as SNA Link)
manage the physical link to the host and
implement protocols in the lower three layers
of SNA. Each link product contains software,
a hardware interface card, and a cable. SNA
NRJE can run simultaneously with other
HP SNA services 9for example, SNA IMF) on
both the MPE V or MPE/iX systems. In
addition, all SNA services can run
simultaneously over the same SNA Link.

Functional Description

SNA NRJE must be used with an SNA Link
product, which implements protocols in the
lower three layers of SNA and provides
physical connectivity to the IBM host via
leased/dial-up lines or LAN. SNA Link
supports line speeds up to 56 KB/s on MPE V
and 16 MB/s on MPE/iX as well as
simultaneous batch and interactive
communications to an IBM host over a single
line.
SNA NRJE supports up to eight workstations
on an HP 3000. When these workstations are
used to communicate with different hosts,
each workstation must use a different SNA
Link.
The SNA NRJE user interface has commands
for submitting jobs, directing the output to
specific devices, directing the output to
specific predefined file equations, displaying
job status, and canceling jobs (see table of
Selected User Commands on next page for
other commands). These commands can be
issued interactively through a terminal, or
issued as part of an HP 3000 program
executing NRJE intrinsics. MPE commands
can be executed in the middle of SNA NRJE
operations. The HP 3000 will concurrently
process user applications and data
communications with an IBM mainframe.
In addition to SNA NRJE user commands, an
operator with Node Manager (NM) capability
has commands to start and stop the batch
workstations, obtain the host remote console,
start and stop tracing and other functions.
These commands may be issued either
interactively or through a batch job.
Operation of the user or operator interface is
independent of the status of the data
communications line. Submitted jobs are held
in a transmission queue and automatically
sent to the host when the line becomes
available.
Similarly, job output is held at the host and
sent to the HP 300 when the line connection
is made.
The Job Management feature of SNA NRJE
allows users, at time of submittal, to specify
the particular device to which their job output
is to be directed. If no device is specified,
output is directed to a default destination,
according to the configuration of SNA NRJE
by the NodeManager. No further user
intervention is required.
Note: Job Management is not available to
anyone communicating with a host using
the VSE/POWER job entry subsystem.
Output can be received on any standard
output device on the HP 3000 such as tape
units, disks, and printers. Similarly, jobs can
be input device such as terminals, card
readers, or disk.
HP 3000
Bus ness
Servers