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PPP Link Quality Monitoring (RFC1333)

IP.com Disclosure Number: IPCOM000002156D
Original Publication Date: 1992-May-01
Included in the Prior Art Database: 2019-Feb-11
Document File: 17 page(s) / 18K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

W. Simpson: AUTHOR

Related Documents

10.17487/RFC1333: DOI

Abstract

The Point-to-Point Protocol (PPP) [1] provides a standard method of encapsulating Network Layer protocol information over point-to-point links. PPP also defines an extensible Link Control Protocol, which allows negotiation of a Quality Protocol for continuous monitoring of the viability of the link. [STANDARDS-TRACK]

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 13% of the total text.

Network Working Group W. Simpson Request for Comments: 1333 Daydreamer May 1992

PPP Link Quality Monitoring

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) [1] provides a standard method of encapsulating Network Layer protocol information over point-to-point links. PPP also defines an extensible Link Control Protocol, which allows negotiation of a Quality Protocol for continuous monitoring of the viability of the link.

This document defines a protocol for generating Link-Quality-Reports.

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 1333 PPP Link Quality Monitoring May 1992

Table of Contents

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

2. Link Quality Monitoring ............................... 2 2.1 Design Motivation ............................... 2 2.2 Counters ........................................ 2 2.3 Counting Packets and Octets ..................... 4 2.4 Processes ....................................... 4 2.5 Configuration Option Format ..................... 6 2.6 Packet Format ................................... 8 2.7 Transmission of Reports ......................... 12 2.8 Calculations .................................... 12 2.9 Failure Detection ............................... 13 2.10 Policy Suggestions .............................. 14

SECURITY CONSIDERATIONS ...................................... 14

REFERENCES ................................................... 14

ACKNOWLEDGEMENTS ............................................. 14

CHAIR’S ADDRESS .............................................. 15

AUTHOR’S ADDRESS ............................................. 15

Simpson [Page ii]

RFC 1333 PPP Link Quality Monitoring May 1992

1. Introduction

PPP has 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.

In order to establish communications over a point-to-point link, each end of the PPP link must first send LCP packets to configure the data link during the Establishment phase. During the Authentication and Network-Layer Protocol phases, the link may be tested to determine if quality is sufficient for operation. This testing is completely optional.

If an implementation desires that the peer use some specific link quality monitoring protocol, then it MUST negotiate the use of that protoc...

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