Chapter 10 Configuring Bsc Interactive; Introduction - Cabletron Systems Netlink FRX4000 User Manual

Introduction

The FRX4000 and FRX6000 support BSC (binary synchronous communication)
Interactive ports, used to connect IBM 3270 hosts to remote CUs (control units) (via
HPAD-TPAD communication) over frame relay or X.25. IBM's DSP (Display System
Protocol) allows a host-to-TPAD connection across the network.
BSC Interactive support includes:
Full-duplex line control
Point-to-point and multipoint operation on BSC Interactive ports
Autocall from BSC Interactive TPAD port
Each BSC Interactive HPAD supports up to 16 remote TPADs simultaneously
Each TPAD supports up to 32 CUs per multidrop line
To run BSC Interactive in an FRX4000 or FRX6000, you must first configure the fol-
lowing in the database:
Node parameters, which is general configuration that must be done no matter
which protocols will be run in the node. See Chapter 4.
RLPs that will contain the interface(s) to the user device(s), plus Line Interface
Card(s) supporting the ports that will be the interfaces. See Chapter 5.
Loaded Protocol(s): BSC Interactive, as well as frame relay or X.25 if BSC will
be transported over one of those. See Chapter 5.
Frame relay port(s)
relay PVC. See Chapter 7 (frame relay) or Chapter 8 (X.25).
BSC Interactive port(s)
Subscriber IDs (page 10-8) to identify the user devices if BSCI will be trans-
ported over X.25.
Configuring BSC Interactive
and/or X.25 port(s) that will connect to a network or frame
(page 10-2) that will connect to the user devices.
Chapter 10