Cabletron Systems Netlink FRX8000, User Manual, Page: 177 / 468

Chapter 12
Configuring BSC
Bisync (BSC) Interactive ports allow connection of multiple Bisynchronous IBM
3270-type hosts over frame relay, X.25, or an FRX8000 backbone network, to mul-
tiple remote cluster controllers. A BSC Interactive HPAD supports up to 16 TPADs,
and each TPAD supports up to 16 cluster controllers. TPADs operate in point-to-point
mode. IBM’s DSP (Display System Protocol) allows connection between a host and a
TPAD across the X.25 network.
N7000 does not support BSC.
Required and Optional Configuration
To run BSC Interactive in an FRX8000 Switch, the following files must be configured
in the database:
●
Network Defaults , described in Chapter 4. This file must be configured in a new
network. After that, no further changes are generally necessary.
●
Node parameters , described in Chapter 5. A record must exist for every
FRX8000, N7400, and N7500 on the network.
●
Line Processor , described in Chapter 6. A record must exist for every LP in
every node.
●
Port , described on page 12-3. A record must exist for every port on every LP in
every node. Each BSC port’s record will identify the port and define its oper-
ating parameters.
●
Subscriber ID(s) , described on page 12-8, is BSC traffic will be transported over
the frame relay link via a logical X.25 port. These records assign called and
calling addresses to the port, and define alternate routing paths.
●
BSC Interactive Subscribers , described on page 12-10. Each HPAD and TPAD
must have Subscriber IDs configured in this file.
●
BSC Interactive Devices , described on page 12-12. Each HPAD and TPAD
cluster controller must have a record in this file.