AMetro Ethernet Network with MX Series Routers
Whatwoulda Metro Ethernet network with Juniper NetworksMX Series Ethernet Services
Routerslook like? It is very likelythat the Metro Ethernet network will place MX Series
routersat the edge of a VPLS and MPLS corenetwork.
TheVLAN labels in the packet are stacked with MPLSlabels, as shown in Figure 2 on
page15. For a more detailed examination of this type of MetroEthernet network, see
“Example:Configuringa Provider VPLS Network with Normalized VLAN Tags”on page 51.

Figure2: A Metro Ethernet Network

Anotherpossible configuration, this one without the VPLS and MPLS core,is shown in
Figure3 on page 16.
15Copyright© 2010, Juniper Networks,Inc.
Chapter1: Overview of Ethernet Solutions