Juniper Networks 10.4 Table of Contents

Table of Contents

JunosDocumentation and ReleaseNotes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii

Objectives........................................................xviii

Audience.........................................................xviii

SupportedRoutingPlatforms.........................................xix

UsingtheIndexes...................................................xix

UsingtheExamplesinThisManual....................................xix

MergingaFullExample..........................................xix

MergingaSnippet...............................................xx

DocumentationConventions..........................................xx

DocumentationFeedback...........................................xxii

RequestingTechnicalSupport........................................xxii

Self-HelpOnline Toolsand Resources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiii

OpeningaCasewithJTAC.......................................xxiii

EthernetTermsandAcronyms.........................................3

Networkingand Internetworking withBridges and Routers. . . . . . . . . . . . . . . . . . . 6

NetworkAddressing atLayer 2 andLayer 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Networkingat Layer 2: Benefits ofEthernet Frames . . . . . . . . . . . . . . . . . . . . . . . . 9

Networkingat Layer2: Challenges ofEthernet MAC Addresses. . . . . . . . . . . . . . . 10

Networkingat Layer 2:Forwarding VLAN TaggedFrames . . . . . . . . . . . . . . . . . . . . 11

Networkingat Layer 2:Forwarding Dual-TaggedFrames . . . . . . . . . . . . . . . . . . . . 13

Networkingat Layer 2:Logical Interface Types. . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

AMetro Ethernet Networkwith MX SeriesRouters . . . . . . . . . . . . . . . . . . . . . . . . . 15

Layer2NetworkingStandards.........................................17

Layer2 Features fora Bridging Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

ExampleRoadmap: Configuring a BasicBridge Domain Environment . . . . . . . . . 22

ExampleTopology...............................................22

ExampleScenario...............................................23

ExampleConfigurationSummary..................................24

ExampleStep: Configuring Interfacesand VLANTags . . . . . . . . . . . . . . . . . . . . . . 24

ExampleStep: Configuring BridgeDomains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

ExampleStep: Configuring SpanningTree Protocols. . . . . . . . . . . . . . . . . . . . . . . 32

ExampleStep: Configuring IntegratedBridging and Routing. . . . . . . . . . . . . . . . . 34