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Attribute List Extension for the Service Location Protocol (RFC3059)

IP.com Disclosure Number: IPCOM000005253D
Original Publication Date: 2001-Feb-01
Included in the Prior Art Database: 2001-Aug-20
Document File: 7 page(s) / 11K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

E. Guttman: AUTHOR

Abstract

The Service Location Protocol, Version 2 (SLPv2) provides a mechanism for a service to be discovered in a single exchange of messages. This exchange of messages does not presently include any of the service's attributes. This document specifies a SLPv2 extension which allows a User Agent (UA) to request a service's attributes be included as an extension to Service Reply messages. This will eliminate the need for multiple round trip messages for a UA to acquire all service information.

This text was extracted from a ASCII document.
This is the abbreviated version, containing approximately 30% of the total text.

Network Working Group E. Guttman Request for Comments: 3059 Sun Microsystems Category: Standards Track February 2001

Attribute List Extension for the Service Location Protocol

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 (2001). All Rights Reserved.

Abstract

The Service Location Protocol, Version 2 (SLPv2) provides a mechanism for a service to be discovered in a single exchange of messages. This exchange of messages does not presently include any of the service's attributes. This document specifies a SLPv2 extension which allows a User Agent (UA) to request a service's attributes be included as an extension to Service Reply messages. This will eliminate the need for multiple round trip messages for a UA to acquire all service information.

Table of Contents

1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.1. Terminology . . . . . . . . . . . . . . . . . . . . . . . 2

1.2. Notation Conventions . . . . . . . . . . . . . . . . . . 3 2. Attribute List Extension . . . . . . . . . . . . . . . . . . . 3 3. IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 4 4. Internationalization Considerations . . . . . . . . . . . . . . 4 5. Security Considerations . . . . . . . . . . . . . . . . . . . . 4 6. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . 4 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Author's Address . . . . . . . . . . . . . . . . . . . . . . . . . 5 Full Copyright Statement . . . . . . . . . . . . . . . . . . . . . 6

Guttman Standards Track [Page 1]

RFC 3059 Attribute List Extension for SLPv2 February 2001

1. Introduction

The Service Location Protocol, Version 2 [3] provides a mechanism for a service to be discovered in a single exchange of messages. The UA sends a Service Request message and the DA or SA (as appropriate) sends a Service Reply message.

It is clearly advantageous to be able to obtain all service information at once. The Service Location Protocol separates messages which obtain different classes of information. This extension enables an optimization to the basic exchange of messages, which currently does not include service attributes in Service Reply messages.

This document specifies a SLPv2 extension which allows a UA to request that a service's attributes be included in Service Reply messages. This will eliminate the need for multiple round trip messages for a UA to acquire all service information.

If the DA or SA does not support the Attrlist extension, it wil...