2-Port Multiprotocol HDLC network device driver

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The 2-Port Multiprotocol adapter high-level data link control (HDLC) device driver is a component of the communication I/O subsystem. This device driver provides support for the HDLC operation over the 2-Port Multiprotocol adapter at speeds up to 1.544Mbps.

The following options provide access to the 2-Port Multiprotocol HDLC Network device driver:

  • Systems Network Architecture (SNA)
  • The synchronous data link control (SDLC) version of the GDLC Programming Interface
  • User-written applications compatible with the SDLC MPQP-API (Multiprotocol Quad Port-Application Programming Interface)
Note: The above options require use of the mpcn special file, which allows access to the 2-Port Multiprotocol adapter's HDLC device driver through the SDLC COMIO device driver emulation subsystem. This subsystem must be installed and configured for each HDLC network device.
  • User-written applications compatible with the HDLC Common Data Link Interface (CDLI) API

The 2-port Multiprotocol adapter device driver allows connectivity to remote host systems using the 2-port Multiprotocol adapter, either directly over a leased line or over switched circuits. The device driver can provide a gateway between work group environments and remote data processing facilities.