Browse Prior Art Database

Proxy-PAR (RFC2843)

IP.com Disclosure Number: IPCOM000003441D
Original Publication Date: 2000-May-01
Included in the Prior Art Database: 2000-Sep-13
Document File: 10 page(s) / 26K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

P. Droz: AUTHOR [+2]

Abstract

Proxy-PAR is a minimal version of PAR (PNNI Augmented Routing) that gives ATM-attached devices the ability to interact with PNNI devices without the necessity to fully support PAR. Proxy-PAR is designed as a client/server interaction, of which the client side is much simpler than the server side to allow fast implementation and deployment.

This text was extracted from a ASCII document.
This is the abbreviated version, containing approximately 11% of the total text.

Network Working Group P. Droz

Request for Comments: 2843 IBM

Category: Informational T. Przygienda

Siara

May 2000

Proxy-PAR

Status of this Memo

This memo provides information for the Internet community. It does

not specify an Internet standard of any kind. Distribution of this

memo is unlimited.

Copyright Notice

Copyright (C) The Internet Society (2000). All Rights Reserved.

Abstract

Proxy-PAR is a minimal version of PAR (PNNI Augmented Routing) that

gives ATM-attached devices the ability to interact with PNNI devices

without the necessity to fully support PAR. Proxy-PAR is designed as

a client/server interaction, of which the client side is much simpler

than the server side to allow fast implementation and deployment.

The purpose of Proxy-PAR is to allow non-ATM devices to use the

flooding mechanisms provided by PNNI for registration and automatic

discovery of services offered by ATM attached devices. The first

version of PAR primarily addresses protocols available in IPv4. But

it also contains a generic interface to access the flooding of PNNI.

In addition, Proxy-PAR-capable servers provide filtering based on VPN

IDs [1], IP protocols and address prefixes. This enables, for

instance, routers in a certain VPN running OSPF to find OSPF

neighbors on the same subnet. The protocol is built using a

registration/query approach where devices can register their services

and query for services and protocols registered by other clients.

1 Introduction

In June of 1996, the ATM Forum accepted the "Proxy-PAR contribution

as minimal subset of PAR" as a work item of the Routing and

Addressing (RA) working group, which was previously called the PNNI

working group [2]. The PAR [3] specification provides a detailed

description of the protocol including state machines and packet

formats.

The intention of this document is to provide general information

about Proxy-PAR. For the detailed protocol description we refer the

reader to [3].

Proxy-PAR is a protocol that allows various ATM-attached devices (ATM

and non-ATM devices) to interact with PAR-capable switches to

exchange information about non-ATM services without executing PAR

themselves. The client side is much simpler in terms of

implementation complexity and memory requirements than a complete PAR

instance. This should allow an easy ...