asyhdlc(ADMP)                   19 June 1992                   asyhdlc(ADMP)


 Name

    asyhdlc - asynchronous HDLC protocol device

 Description

    The asyhdlc device is attached to an asynchronous serial line so that PPP
    may use that line to transmit and receive IP datagrams.

    A PPP HDLC packet lacks a CRC checksum and uses a ``transparent code''
    for data transmission.  asyhdlc performs the following functions on PPP
    datagrams:

       ⊕    generates and validates the CRC checksum

       ⊕    encodes and decodes packet data to achieve data transparency -
       character stuffing

       ⊕    generates and strips framing patterns delimiting packet start and
       end

    See ppp(ADMP) for additional information about the PPP implementation.

 See also

    ppp(ADMP),
    RFC 1171