Envoy Application Programming Manual
Table Of Contents
- What’s New in This Manual
- About This Manual
- 1 Application Programming With Envoy
- 7 ADM-2 Multipoint Supervisor Protocol
- 8 TINET Multipoint Supervisor Protocol
- 9 Burroughs Point-To-Point Protocol
- 10 Asynchronous Line Supervisor Protocol
- A ASCII Character Set
- B ASCII to EBCDIC Code Conversion
- C File-System Procedures
- D Statistics Messages
- E S-Series Changes to Envoy
- NonStop™ Himalaya S-Series Server Architecture
- G-Series Migration Considerations
- CBSENSEON and CFSENSEON Modifiers
- LEOTRESYN and NOLEOTRESYN Modifiers
- Treatment of Characters After the Termination Character
- Number of SYN Characters
- DTR Drop
- Reporting of Parity Error
- Half-Duplex Support for Asynchronous Lines
- Controller Replacement
- SYSGEN and COUP
- Unit Numbers
- FDX Line Changes
- No Support for Auto-Call Unit
- Glossary
- Index
Envoy Application Programming Manual—427159-001
xxv
About This Manual
This manual describes application programming of an Envoy subsystem running on a
Compaq NonStop™ Himalaya S-series server.
Who Should Use This Manual
This manual is written for those who provide the following services for the server and
the software environment at a particular site:
•
Planning
•
Installation and configuration
•
Maintenance, optimization, and troubleshooting
How This Manual Is Organized
This manual includes the following sections:
Section Title This Section...
1 Application Programming
With Envoy
Gives an overview of the management functions
provided by Envoy, the Envoy subsystem
architecture, protocols supported, programmatic
interfaces, and Guardian 90 file-system
procedure calls.
2 Software Concepts Describes the various software concepts that
apply to an Envoy data communications
environment.
3 BISYNC Point-To-Point
Protocol
Describes the BISYNC point-to-point protocol,
which enables an application process to act as a
station in a binary synchronous point-to-point
network.
4 BISYNC Centralized
Multipoint Supervisor
Protocol
Describes the BISYNC centralized multipoint
supervisor protocol, which enables a network
consisting of two or more stations to
communicate over a leased multidrop line.
5 BISYNC Multipoint
Tributary Protocol
Describes the BISYNC centralized multipoint
network, which consists of two or more stations
communicating over a leased multidrop line with
one station designated as the supervisor and the
other stations designated as tributaries.
6 Full-Duplex Protocol Describes the Full-Duplex protocol, which
enables you to develop your own byte-
synchronous full-duplex line protocol at the
application level.