Chapter 10Configuring BSC Interactive
Introduction
The SmartSwitch 1800 supports ports configured for BSC (binary synchronous com-
munication) Interactive, which connects IBM 3270 hosts to remote CUs (control
units) (via HPAD-TPAD communication) over frame relay or X.25.
BSC Interactive support includes:
Full-duplex line control
Point-to-point and multipoint operation on BSC Interactive ports
Autoca ll fro m BSC Intera c t ive TP AD port
Each BSC Interacti ve HPAD supports u p to 16 remote TPADs simultan eously
Each TPAD supports up to 32 CUs per multidrop line
Required Configuration
To run BSC Interactive in a SmartSwitch 1800, make sure the following are properly
configured:
Node parameter s (Chapte r 4) . Thi s is gene ral c onfig urat ion th at must be do ne
no ma tter w hich pro tocols wil l be r un in th e nod e.
Load ed protocols (Chapter 5): BSC Interactive, as well as frame relay or X.25
if BSC will be transported over one of those.
Frame relay (Chap t er 7) or X.25 (Chapter 8) port(s) that will connect to a
network or frame re l ay PVC.
Logical X.25 (Chapter 8), if BSC will be encapsulated for transmission over
frame relay.
BSC Interactive port(s) (page 10-2) that will connect to the user devices.
Subscriber IDs (page 10-8), which identifiy user devices to each other and the
SmartSwitch.