1 mpls layer 2 vpn overview, 1 introduction to mpls layer 2 vpn, Mpls layer 2 vpn – Panasonic NN46240-710 User Manual
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4 MPLS L2VPN troubleshooting
Nortel Secure Router 8000 Series
_________ Troubleshooting - VPN
4.1 MPLS Layer 2 VPN overview
This section covers the following topics:
Introduction to MPLS Layer 2 VPN
MPLS Layer 2 VPN IP-interworking
4.1.1 Introduction to MPLS Layer 2 VPN
MPLS Layer 2 VPN
MPLS Layer 2 VPN allows operators to provide Layer 2 VPNs of different media over a unified
MPLS network. The MPLS network can also provide traditional IP, MPLS Layer 3 VPN, traffic
engineering, and Quality of Service (QoS) services.
From the users point of view, the MPLS network is a Layer 2 switching network that can
establish a Layer 2 connection between nodes.
Use Asynchronous Transfer Mode (ATM) as an example. Every customer edge (CE) is
equipped with an ATM virtual circuit (VC), and connects the remote CE through the MPLS
network.
Figure 4-1 MPLS LAYER 2 VPN networking
Basic concepts of MPLS Layer 2 VPN
The CE, provider edger (PE), and provider router (P) defined in the MPLS Layer 2 VPN have
the same meaning and mechanism as those in the BGP/MPLS Layer 3 VPN.
4-2
Nortel Networks Inc.
Issue 5.3 (30 March2009)