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G&R

Handler/product relationships

Any product using the Gline API to communicate with the line handler can

be run using any line handler. This is one of the strengths of the architecture.

There are restrictions enforced by the external environment. For example the

Questar DKU emulation Qsim can normally only be used over a link that the

Bull primary network regards as synchronous. In practice this means it can only

be run over a DSA/DIWS or TNVIP link.

The following is a list of the all the Host Links products and the line

handlers they normally use on the host side:

Qsim

gl_dsa, gl_tcp

V78sim

gl_dsa, gl_tcp, gl_tty

G3270

gl_dsa, gl_tcp, gl_x25

G5250

gl_tcp

Pthru

gl_dsa, gl_tcp, gl_tty

Ggate

gl_dsa

Gspool

gl_dsa, gl_tcp

GUFT

gl_dsa

GlAPI

gl_dsa, gl_tcp, gl_x25, gl_tty

DSA connections can be made in the traditional way using OSI-transport,

which is a requirement when connecting via old-style Datanets. The Bull

systems can be accessed over an X.25 WAN or Ethernet LAN through a

Datanet or MainWay front-end. Alternatively access can be direct to GCOS6

using a LAN adapter or direct to GCOS7 using ISL. Access can be by an FDDI

LAN direct to GCOS7 using FCP7 or direct to GCOS8 using FCP8 (both

support OSI-transport).

DSA connections can also be made over a TCP/IP network, using the Internet

standard RFC1006 transport protocol to replace OSI-transport. MainWay front-

ends with an ONP (Open Network Processor) have RFC1006 support in the

standard product, allowing DSA sessions over TCP/IP into the MainWay.

RFC1006 can also be installed in the FCP7 and FCP8 cards to support DSA

connections direct to the mainframes without passing through the front-end.

The GNSP of newer GCOS8 systems, and the Open System personality of

GCOS7 Diane systems both support RFC1006 connections.

Gline Line Handlers and Configuration

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