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Juniper JUNOS OS 10.4 User Manual

Juniper JUNOS OS 10.4
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Table of Contents
About This Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii
Junos Documentation and Release Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii
Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
Supported Routing Platforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
Using the Indexes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
Using the Examples in This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
Merging a Full Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
Merging a Snippet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi
Documentation Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi
Documentation Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii
Requesting Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii
Self-Help Online Tools and Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xix
Opening a Case with JTAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xix
Part 1 Overview
Chapter 1 Overview of Ethernet Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Ethernet Terms and Acronyms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Networking and Internetworking with Bridges and Routers . . . . . . . . . . . . . . . . . . . 6
Network Addressing at Layer 2 and Layer 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Networking at Layer 2: Benefits of Ethernet Frames . . . . . . . . . . . . . . . . . . . . . . . . 9
Networking at Layer 2: Challenges of Ethernet MAC Addresses . . . . . . . . . . . . . . . 10
Networking at Layer 2: Forwarding VLAN Tagged Frames . . . . . . . . . . . . . . . . . . . . 11
Networking at Layer 2: Forwarding Dual-Tagged Frames . . . . . . . . . . . . . . . . . . . . 13
Networking at Layer 2: Logical Interface Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
A Metro Ethernet Network with MX Series Routers . . . . . . . . . . . . . . . . . . . . . . . . . 15
Layer 2 Networking Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Part 2 Basic Solutions for MX Series Routers
Chapter 2 Basic Layer 2 Features on MX Series Routers . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Layer 2 Features for a Bridging Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Example Roadmap: Configuring a Basic Bridge Domain Environment . . . . . . . . . 22
Example Topology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Example Scenario . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Example Configuration Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Example Step: Configuring Interfaces and VLAN Tags . . . . . . . . . . . . . . . . . . . . . . 24
Example Step: Configuring Bridge Domains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Example Step: Configuring Spanning Tree Protocols . . . . . . . . . . . . . . . . . . . . . . . 32
Example Step: Configuring Integrated Bridging and Routing . . . . . . . . . . . . . . . . . 34
vCopyright © 2012, Juniper Networks, Inc.

Table of Contents

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Juniper JUNOS OS 10.4 Specifications

General IconGeneral
BrandJuniper
ModelJUNOS OS 10.4
CategoryNetwork Router
LanguageEnglish

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