[1] U. D. Black, Data Networks: Concepts, Theory, and Practice ( Englewood Cliffs, NJ: Prentice Hall, 1989).

[2] Nonstandard for Transmission of IP Datagrams over Serial Lines: SLIP, RFC 1055.

[3] Compressing TCP/IP Headers for Low-Speed Serial Links, RFC 1144.

[4] The Point-to-Point Protocol (PPP), RFC 1661.

[5] PPP in HDLC-Like Framing, RFC 1662.

[6] Assigned Numbers, RFC 1700.

[7] PPP over ISDN, RFC 1618 ( May 1994).

[8] PPP in Frame Relay, RFC 1973 ( June 1996).

[9] PPP over SONET/SDH, RFC 2615 ( June 1999).

[10] PPP over AAL5, RFC 2364 ( July 1998).

[11] PPP over FUNI, RFC 2363 ( July 1998).

[12] Method for Transmitting PPP over Ethernet (PPPoE), RFC 2364 ( February 1999).

[13] The PPP Multilink Protocol (MP), RFC 1990 ( August 1996).

[14] PPP Link Quality Monitoring, RFC 1989 ( August 1996).

[15] Charles K. Summer, ISDN Implementer's Guide, Standards, Protocols, and Services ( New York: McGraw-Hill, 1995).

[16] Extending OSPF to Support Demand Circuits, RFC 1793 ( April 1995).

[17] R. Friend, W. Simson, "PPP Stac LZS Compression Protocol," RFC 1974.

[18] Multiprotocol Interconnect on X.25 and ISDN in the Packet Mode, RFC 1356.

[19] A Standard for the Transmission of IP Datagrams over Public Data Networks, RFC 877.

[20] Multiprotocol Interconnect over Frame Relay, RFC 2427 ( September 1998).

[21] Generic Systems Requirements in Support of Switched Multimegabit Data Service, Technical Advisory TA-TSY-000772, Bellcore Technical Advisory, Issue 3