![](http://pdfasset.owneriq.net/8/48/8487ffbe-39e2-4a92-9bcd-73b9dbfe021c/8487ffbe-39e2-4a92-9bcd-73b9dbfe021c-bg2a.png)
• Networking at Layer 2: Benefits of Ethernet Frames on page 9
• Networking at Layer 2: Challenges of Ethernet MAC Addresses on page 10
• Networking at Layer 2: Forwarding VLAN Tagged Frames on page 11
• Networking at Layer 2: Forwarding Dual-Tagged Frames on page 13
• Networking at Layer 2: Logical Interface Types on page 14
• A Metro Ethernet Network with MX Series Routers on page 15
Copyright © 2010, Juniper Networks, Inc.18
Junos 10.4 MX Series Ethernet Services Routers Solutions Guide