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Point-to-Point Protocol for the transmission of multi-protocol datagrams over Point-to-Point links (RFC1171)

IP.com Disclosure Number: IPCOM000001984D
Original Publication Date: 1990-Jul-01
Included in the Prior Art Database: 2000-Sep-12
Document File: 34 page(s) / 82K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

D. Perkins: AUTHOR

Abstract

The Point-to-Point Protocol (PPP) provides a method for transmitting datagrams over serial point-to-point links. PPP is composed of three parts:

This text was extracted from a ASCII document.
This is the abbreviated version, containing approximately 3% of the total text.

Network Working Group D. Perkins

Request for Comments: 1171 CMU

Obsoletes: RFC 1134 July 1990

The Point-to-Point Protocol

for the

Transmission of Multi-Protocol Datagrams Over Point-to-Point Links

Status of this Memo

This RFC specifies an IAB standards track protocol for the Internet

community.

Please refer to the current edition of the "IAB Official Protocol

Standards" for the standardization state and status of this protocol.

This proposal is the product of the Point-to-Point Protocol Working

Group of the Internet Engineering Task Force (IETF). Comments on this

memo should be submitted to the IETF Point-to-Point Protocol Working

Group chair.

Distribution of this memo is unlimited.

Abstract

The Point-to-Point Protocol (PPP) provides a method for transmitting

datagrams over serial point-to-point links. PPP is composed of three

parts:

1. A method for encapsulating datagrams over serial links.

2. An extensible Link Control Protocol (LCP).

3. A family of Network Control Protocols (NCP) for establishing

and configuring different network-layer protocols.

This document defines the encapsulation scheme, the basic LCP, and an

NCP for establishing and configuring the Internet Protocol (IP)

(called the IP Control Protocol, IPCP).

The options and facilities used by the LCP and the IPCP are defined

in separate documents. Control protocols for configuring and

utilizing other network-layer protocols besides IP (e.g., DECNET,

OSI) are expected to be developed as needed.

Perkins [Page i]

RFC 1171 Point-to-Point Protocol July 1990

Table of Contents

1. Introduction .......................................... 1

1.1 Motivation ...................................... 1

1.2 Overview of PPP ................................. 1

1.3 Organization of the document .................... 2

2. Physical Layer Requirements ........................... 3

3. The Data Link Layer ................................... 4

3.1 Frame Format .................................... 5

4. The PPP Link Control Protocol (LCP) ................... 9

4.1 The LCP Automaton ............................... 11

4.1.1 Overview ........................................ 11

4.1.2 State Dia...