Networking Guide
Chapter 9, Configuring the Point-to-Point Protocol (PPP)

How SCO PPP works

How SCO PPP works

SCO PPP provides for the use of TCP/IP network applications (for example, telnet) over serial lines by linking serial lines to the IP protocol driver through a series of drivers and modules called the PPP STREAMS stack. In addition, the drivers and modules implement various Internet standards that govern the transmission of data over serial lines attached to the PPP STREAMS stack.

The SCO PPP STREAMS stack consists of:

The most important component in the stack is the PPP driver that handles the framing of the IP packets for their transmission and reception over serial lines. Another important function of this driver is PPP negotiation with the remote host that ensures a sound connection before any transmission of application data. (For more information on these components, see the appropriate manual page.)