Dismiss
There will be a system update on Friday, May 5th, 6 PM ET. You may experience a brief service interruption.
Browse Prior Art Database

Integrated Services Mappings for Low Speed Networks (RFC2688)

IP.com Disclosure Number: IPCOM000003280D
Original Publication Date: 1999-Sep-01
Included in the Prior Art Database: 2000-Sep-13
Document File: 13 page(s) / 34K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

S. Jackowski: AUTHOR [+4]

Abstract

A set of companion documents describe an architecture for providing integrated services over low-bitrate links, such as modem lines, ISDN B-channels, and sub-T1 links [1, 2, 3, 4]. The main components of the architecture are: a set of real-time encapsulation formats for asynchronous and synchronous low-bitrate links, a header compression architecture optimized for real-time flows, elements of negotiation protocols used between routers (or between hosts and routers), and announcement protocols used by applications to allow this negotiation to take place.

This text was extracted from a ASCII Text document.
This is the abbreviated version, containing approximately 9% of the total text.

Network Working Group S. Jackowski

Request for Comments: 2688 Deterministic Networks

Category: Standards Track D. Putzolu

Intel Architecture Labs

E. Crawley

Argon Networks

B. Davie

Cisco Systems

September 1999

Integrated Services Mappings for Low Speed Networks

Status of this Memo

This document specifies an Internet standards track protocol for the

Internet community, and requests discussion and suggestions for

improvements. Please refer to the current edition of the "Internet

Official Protocol Standards" (STD 1) for the standardization state

and status of this protocol. Distribution of this memo is unlimited.

Copyright Notice

Copyright (C) The Internet Society (1999). All Rights Reserved.

Abstract

A set of companion documents describe an architecture for providing

integrated services over low-bitrate links, such as modem lines, ISDN

B-channels, and sub-T1 links [1, 2, 3, 4]. The main components of the

architecture are: a set of real-time encapsulation formats for

asynchronous and synchronous low-bitrate links, a header compression

architecture optimized for real-time flows, elements of negotiation

protocols used between routers (or between hosts and routers), and

announcement protocols used by applications to allow this negotiation

to take place.

This document defines the service mappings of the IETF Integrated

Services for low-bitrate links, specifically the controlled load [5]

and guaranteed [6] services. The approach takes the form of a set of

guidelines and considerations for implementing these services, along

with evaluation criteria for elements providing these services.

1. Introduction

In addition to the "best-effort" services the Internet is well-known

for, other types of services ("integrated services") are being

developed and deployed in the Internet. These services support

special handling of traffic based on bandwidth, latency, and other

requirements that cannot usually be met using "best-effort" service.

This document defines the mapping of integrated services "controlled

load" [5] and "guaranteed" [6] services on to low-bandwidth links.

The architecture and mechanisms used to implement these services on

such links are defined in a set of companion documents. The

mechanisms defined in these documents include both compression of

flows (for bandwidth savings) [4,10] and a set of extensions to the

PPP protocol which permit fragmentation [2] or suspension [3] of

large packets in favor of packets from flows with more stringent

serv...