 | Copyright © 2009, Juniper Networks, Inc. All rights reserved. Trademark Notice. | |
In a Layer 2 VPN, traffic is forwarded to the PE router in Layer 2 format, carried by MPLS through an LSP over the service provider network, and then converted back to Layer 2 format at the receiving CE router.
On a Layer 2 VPN, routing occurs on the customer routers, typically on the CE router. The CE router connected to a service provider on a Layer 2 VPN must select the appropriate circuit on which to send traffic. The PE router receiving the traffic sends it across the network to the PE router on the outbound side. The PE routers need no information about the customer's routes or routing topology, and need only to determine the virtual tunnel through which to send the traffic.
| Copyright © 2009, Juniper Networks, Inc. All rights reserved. Trademark Notice. | |