foulkes@utx1.UUCP (01/29/87)
We are looking top obtain/buy some communications software. If you
have any recommendations/advice/products please e-mail or telephone
Tom Foulkes (305) 476-6857
{allegra} !novavax!utx1!foulkes
We need software for implementation of synchronous
communication drivers (OSI level 2). Required protocols are -
1. HDLC - Balanced operation Asynchronous balanced mode
Class (Link Access Protocol Balanced - LAPB).
2. HDLC - Unbalanced operation Normal response mode Class
(Synchronous Data link control - SDLC).
Following diagrams outline the environment & the
requirements.
1. Link Access protocol Balanced (LAPB)
------------------------------------
+---------------------------+ +-------------------------+
| STATION A - | SDLC | STATION B |
| | + | |
| Processor - Micro VAX. | LAPB | Processor - MC68000/ |
| |<------------->| Intel80188 |
| Operating System - | | Operating System - |
| UNIQ/ULTRIX | | Unix like |
| | | |
| Communication controller | | Communication controller|
| ???????? (*) | | Z8530 (**) |
+---------------------------+ +-------------------------+
* Need Communication controller on Micro Vax - Suggestions
are welcome.
** On MC68000 & Intel 80188 boards, controller similar to
Z8530 is ok.
2. Synchronous Data Link control (SDLC)
------------------------------------
+---------------------------+ +-------------------------+
| Primary Station | | Secondary Station(s) |
| | | |
| Processor - MC68000/ | SDLC | Processor - Intel 80188 |
| Intel80188 |<------------->| |
| Operating System - | | Operating System - |
| Unix like | | Unix like |
| | | |
| Communication controller | | Communication controller|
| Z8530 | | Z8530 |
+---------------------------+ +-------------------------+
--
{allegra|codas}!novavax!utx1!foulkes
Tom L. Foulkes @ Racal-Milgo, Fort Lauderdale, Florida (305) 476 6857