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List of Figures
Part 1 Overview
Chapter 1 Overview of Ethernet Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Figure 1: Native (Normal) and VLAN-Tagged Ethernet Fames . . . . . . . . . . . . . . . . 12
Figure 2: A Metro Ethernet Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 3: A Metro Ethernet Network with MX Series Routers . . . . . . . . . . . . . . . . . 16
Figure 4: VLAN Tags on a Metro Ethernet Network . . . . . . . . . . . . . . . . . . . . . . . . . 16
Part 2 Basic Solutions for MX Series Routers
Chapter 2 Basic Layer 2 Features on MX Series Routers . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 5: Bridging Network with MX Series Routers . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 6: Designated, Root, and Alternate Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Chapter 4 VLANs Within Bridge Domain and VPLS Environments . . . . . . . . . . . . . . . . 43
Figure 7: Provider Bridge Network Using Normalized VLAN Tags . . . . . . . . . . . . . 48
Figure 8: VLAN Tags and VPLS Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Figure 9: Many VLANs on One VPLS Instance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Chapter 8 MX Series Router in an ATM Ethernet Interworking Function . . . . . . . . . . . . 77
Figure 10: ATM Ethernet VLAN Interworking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Figure 11: ATM Ethernet VLAN Interworking Packet Structure . . . . . . . . . . . . . . . . 78
Figure 12: CCC to Stacked VLAN Translation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Figure 13: ATM Ethernet VLAN Interworking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Part 3 Ethernet Filtering, Monitoring, and Fault Management Solutions
for MX Series Routers
Chapter 9 Layer 2 Firewall Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Figure 14: Policing and Marking Traffic Entering a VPLS Core . . . . . . . . . . . . . . . . 96
Chapter 10 IEEE 802.1ag OAM Connectivity-Fault Management . . . . . . . . . . . . . . . . . . 103
Figure 15: Ethernet OAM with VPLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Figure 16: Ethernet CFM over a Bridge Network . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Figure 17: Ethernet CFM on Physical Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Chapter 11 ITU-T Y.1731 Ethernet Frame Delay Measurements . . . . . . . . . . . . . . . . . . . . 119
Figure 18: Ethernet OAM Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Chapter 12 IEEE 802.3ah OAM Link-Fault Management . . . . . . . . . . . . . . . . . . . . . . . . . 137
Figure 19: Ethernet LFM Between PE and CE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Figure 20: Ethernet LFM for CCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Figure 21: Ethernet LFM for Aggregated Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . 140
xiiiCopyright © 2010, Juniper Networks, Inc.