Integrated Service Mappings on IEEE 802 Networks (RFC2815)

Network Working Group M. Seaman Request for Comments: 2815 Telseon Category: Standards Track A. Smith Extreme Networks E. Crawley Unisphere Solutions J. Wroclawski MIT LCS May 2000

Integrated Service Mappings on IEEE 802 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 (2000). All Rights Reserved.

Abstract

This document describes mappings of IETF Integrated Services over LANs built from IEEE 802 network segments which may be interconnected by IEEE 802.1D MAC Bridges (switches). It describes parameter mappings for supporting Controlled Load and Guaranteed Service using the inherent capabilities of relevant IEEE 802 technologies and, in particular, 802.1D-1998 queuing features in switches.

These mappings are one component of the Integrated Services over IEEE 802 LANs framework.

Seaman, et al. Standards Track [Page 1]

RFC 2815 Int-Serv Mappings on IEEE 802 Networks May 2000

Table of Contents

1 Introduction ............................................... 2 2 Flow Identification and Traffic Class Selection ............ 3 3 Choosing a flow’s IEEE 802 user_priority class ............. 5 3.1 Context of admission control and delay bounds ............ 6 3.2 Default service mappings ................................. 7 3.3 Discussion ............................................... 9 4 Computation of integrated services characterization parameters by IEEE 802 devices .....................................10 4.1 General characterization parameters ......................10 4.2 Parameters to implement Guaranteed Service ...............11 4.3 Parameters to implement Controlled Load ..................11 4.4 Parameters to implement Best Effort ......................12 5 Merging of RSVP/SBM objects ................................12 6 Applicability of these service mappings ....................13 7 References .................................................14 8 Security Considerations ....................................15 9 Acknowledgments ............................................15 10 Authors’ Addresses ........................................16 11 Full Copyright Statement ..................................17

1. Introduction

The IEEE 802.1 Interworking Task Group has developed a set of enhancements to the basic MAC Service provided in Bridged Local Area Networks (a.k.a. "switched LANs"). As a supplement to the original IEEE MAC Bridges standard, IEEE 802.1D-1990 [802.1D-ORIG], the updated IEEE 802.1D-1998 [802.1D] proposes differential traffic class queuing in switches. The IEEE 802.1Q specification [802.1Q] extends the capabilities of Ethernet/802.3 media to carry a traffic class indicator, or "...