Overview; Sonet/Sdh; Chapter 1 Rpr Configuration; Introduction To Rpr - H3C S9500 Series Operation Manual

Operation Manual – RPR
H3C S9500 Series Routing Switches

Chapter 1 RPR Configuration

When configuring RPR, go to these sections for information you are interested in:

Introduction to RPR

Configuring RPR
Displaying and Maintaining RPR
RPR Configuration Examples
1.1 Introduction to RPR
This section covers these topics:
Introduction to RPR

Ring Structure of RPR

Data Operations on RPR
Topology Discovery
Fault Response Methods
RPR Timers
RPR Ports
Protocols and Standards

1.1.1 Overview

Resilient packet ring (RPR) is a new MAC layer protocol designed for transferring mass
data services over MANs. It can operate on synchronous optical network/synchronous
digital hierarchy (SONET/SDH), dense wavelength division multiplexing (DWDM) and
Ethernet to provide flexible and efficient networking schemes for broadband IP MANs
carriers. The RPR technology delivers these benefits:
Physical layer diversity
High bandwidth utilization
Multicast and broadcast support
Automatic topology discovery
Quick protection mechanism
Traffic level guarantee based on bandwidth reservation and rate limiting
Bandwidth sharing fairness among stations on the ring
1.1.2 Ring Structure of RPR
RPR is made up of dual unidirectional counter-rotating ringlets identified as Ringlet 0
and Ringlet 1, as shown in Figure 1-1:
1-1
Chapter 1 RPR Configuration