List of Figures

Part1 Overview

Chapter1 OverviewofEthernetSolutions......................................3
Figure1: Native (Normal) andVLAN-Tagged Ethernet Fames. . . . . . . . . . . . . . . . 12
Figure2:AMetroEthernetNetwork.....................................15
Figure3: A Metro Ethernet Networkwith MX Series Routers. . . . . . . . . . . . . . . . . 16
Figure4: VLAN Tagson a MetroEthernet Network . . . . . . . . . . . . . . . . . . . . . . . . . 16

Part2 BasicSolutions for MX Series Routers

Chapter2 BasicLayer 2 Features on MXSeries Routers . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure5: Bridging Network with MX SeriesRouters . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure6: Designated, Root,and AlternatePorts . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Chapter4 VLANsWithin Bridge Domain and VPLS Environments . . . . . . . . . . . . . . . . 43
Figure7: Provider Bridge Network UsingNormalized VLAN Tags. . . . . . . . . . . . . 48
Figure8:VLANTagsandVPLSLabels..................................52
Figure9: Many VLANs on One VPLSInstance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Chapter8 MXSeries Router in anATM Ethernet Interworking Function . . . . . . . . . . . . 77
Figure10: ATM Ethernet VLAN Interworking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Figure11: ATM Ethernet VLANInterworking Packet Structure . . . . . . . . . . . . . . . . 78
Figure12: CCC toStacked VLAN Translation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Figure13: ATM Ethernet VLAN Interworking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Part3 EthernetFiltering, Monitoring, and Fault ManagementSolutions

forMX Series Routers

Chapter9 Layer2FirewallFilters.............................................95
Figure14: Policing and Marking TrafficEntering aVPLS Core . . . . . . . . . . . . . . . . 96
Chapter10 IEEE802.1ag OAM Connectivity-Fault Management . . . . . . . . . . . . . . . . . . 103
Figure15:EthernetOAMwithVPLS....................................106
Figure16: Ethernet CFM over aBridge Network . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Figure17: Ethernet CFM on Physical Interfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Chapter11 ITU-TY.1731Ethernet Frame Delay Measurements . . . . . . . . . . . . . . . . . . . . 119
Figure18:EthernetOAMOverview.....................................120
Chapter12 IEEE 802.3ah OAM Link-Fault Management . . . . . . . . . . . . . . . . . . . . . . . . . 137
Figure19: Ethernet LFMBetween PE andCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Figure20:EthernetLFMforCCC......................................139
Figure21: Ethernet LFM for AggregatedEthernet . . . . . . . . . . . . . . . . . . . . . . . . . 140
xiiiCopyright© 2010, Juniper Networks,Inc.