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The Point-to-Point Protocol (PPP) for the Transmission of Multi-protocol Datagrams over Point-to-Point Links (RFC1331)

IP.com Disclosure Number: IPCOM000002154D
Original Publication Date: 1992-May-01
Included in the Prior Art Database: 2000-Sep-12

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

W. Simpson: AUTHOR

Abstract

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

This text was extracted from a ASCII document.
This is the abbreviated version, containing approximately 2% of the total text.

Network Working Group W. Simpson

Request for Comments: 1331 Daydreamer

Obsoletes: RFCs 1171, 1172 May 1992

The Point-to-Point Protocol (PPP)

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, and requests discussion and suggestions for improvements.

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

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

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 comprised of

three main components:

1. A method for encapsulating datagrams over serial links.

2. A Link Control Protocol (LCP) for establishing, configuring,

and testing the data-link connection.

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

and configuring different network-layer protocols.

This document defines the PPP encapsulation scheme, together with the

PPP Link Control Protocol (LCP), an extensible option negotiation

protocol which is able to negotiate a rich assortment of

configuration parameters and provides additional management

functions.

This RFC is a 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-ppp@ucdavis.edu mailing list.

Simpson [Page i]

RFC 1331 Point-to-Point Protocol May 1992

Table of Contents

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

1.1 Specification of Requirements ................... 3

1.2 Terminology ..................................... 3

2. Physical Layer Requirements ........................... 4

3. The Data Link Layer ................................... 5

3.1 Frame Format .................................... 6

4. PPP Link Operation .................................... 10

4.1 Overview ........................................ 10

4.2 Phase Diagram ................................... 10

4.3 Link Dead (physical-layer not ready) ............ 10

4.4 Link Establishment Phase ...........................