SNA Link/iX Node Managers Guide (30291-90009)
Table Of Contents
- 1 SNA Links Overview
- 2 SNA Node and Link Configuration
- 3 Logging Configuration
- 4 SNA Node Startup and Shutdown
- 5 SNA Link Troubleshooting
- 6 MPE Commands
- 7 SNA Link Installation Information
- A Messages
- SDLC Link Startup Error Messages
- SDLC Link Driver Error Messages
- SNACONTROL Error Messages
- SNA Transport Error Messages
- SNA Transport Logging Messages
- SDLC Link Shutdown Error Messages
- X.25 Link Failure Error Codes
- X.25 Link Module Configurator Error Codes
- X.25 Link QLLC Internal Error Codes
- NetView Alerts Error Messages
- Network Dump Manager Error Messages
- LAN Error Messages
- B Netview Alerts
Chapter 1 19
SNA Links Overview
SNA/SDLC Link Overview
SNA/SDLC Link Overview
SNA/SDLC Link is composed of hardware and software:
• Programmable Serial Interface (PSI) card and cables (hardware)
• SNA Transport (software)
• SDLC link driver (software)
The hardware of SNA/SDLC Link (the PSI and cables) and the
downloaded SNA Transport software implement the Physical Control
layer of SNA, and the SDLC link driver implements the Data Link
Control layer. The SDLC link driver controls transmission over the
communications line.
Figure 1-1 shows how SNA/SDLC Link and the SNA services
implement HP 3000-to-IBM host communication.
Figure 1-1 SNA/SDLC Link HP-to-IBM Host Communication