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
BISYNC Centralized Multipoint Supervisor Protocol
Envoy Application Programming Manual—427159-001
4-46
Programming Examples
Figure 4-11 shows the flow of the multipoint supervisor READ-WRITE operation.
Figure 4-11. BISYNC Multipoint Supervisor READ-WRITE Operation
034CDT .CDD
Read Startup
Message
Open the
Communication
Line
Write ? to
Home Terminal
Read Home
Terminal (nowait)
Poll the Network
Any
Tributary
Respond?
Yes
Start
Save Any Read
Completion on
Home Terminal,
Cancel Read, &
Write Message
Open Home
Terminal (nowait)
Define Poll List
Select: Write
Message to
Tributary
Read on
Home Terminal
Complete?
Destination
Tributary?
Read on
Home Terminal
Complete?
Yes
No
Yes
No
No
Yes
No