Chapter 1. Data Link Control

Generic data link control (GDLC) defines a generic interface with a common set of commands that allows application and kernel users to control DLC device managers within the operating system.

This chapter discusses the following topics:

• Generic Data Link Control Environment Overview
• Implementing GDLC Interface
• GDLC Interface ioctl Entry Point Operations
• GDLC Special Kernel Services
• GDLC Problem Determination
• Data Link Control Programming and Reference Information
• Token-Ring Data Link Control Overview
• DLCTOKEN Device Manager Nodes
• DLCTOKEN Device Manager Functions
• DLCTOKEN Protocol Support
• DLCTOKEN Name-Discovery Service
• DLCTOKEN Direct Network Services
• DLCTOKEN Connection Contention
• Initiating DLCTOKEN Link Sessions
• Stopping DLCTOKEN LInk Sessions
• DLCTOKEN Programming Interfaces
• IEEE 802.3 Ethernet Data Link Control Overview
• DLC8023 Device Manager Nodes
• DLC8023 Device Manager Functions
• DLC8023 Protocol Support
• DLC8023 Name-Discovery Services
• DLC8023 Direct Network Services
• DLC8023 Connection Contention
• DLC8023 Link Sessions
• DLC8023 Programming Interfaces
• Standard Ethernet Data Link Control Overview
• DLCETHER Device Manager Nodes
• DLCETHER Device Manager Functions
• DLCETHER Protocol Support
• DLCETHER Name-Discovery Services
• DLCETHER Direct Network Services
• DLCETHER Connection Contention
• DLCETHER Link Session Initiation
• DLCETHER Link Session Termination
• DLCETHER Programming Interfaces
• Synchronous Data Link Control Overview
• DLCSDLC Device Manager Functions
• DLCSDLC Protocol Support
• DLCSDLC Programming Interfaces
• DLCSDLC Asynchronous Function Subroutine Calls
• Qualified Logical Link Control (DLCQLLC) Overview
• Data Link Control FDDI (DLC FDDI) Overview
• DLC FDDI Device Manager Nodes
• DLC FDDI Device Manager Functions
• DLC FDDI Protocol Support
• DLC FDDI Name-Discovery Services
• DLC FDDI Direct Network Services
• DLC FDDI Connection Contention
• DLC FDDI Link Sessions
• DLC FDDI Programming Interfaces