MPLS VPN
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MPLS VPN is a family of methods for harnessing the power of Multiprotocol Label Switching (MPLS) to create virtual private networks (VPNs). MPLS is well suited to the task as it provides traffic isolation and differentiation without substantial overhead.[citation needed]
[edit] Layer 3 MPLS VPN
A layer 3 MPLS VPN, also known as L3VPN, combines enhanced BGP signaling, MPLS traffic isolation and router support for VRFs (Virtual Routing/Forwarding) to create an IP based VPN. Compared to other types of VPN such as IPSec VPN or ATM, MPLS L3VPN is more cost efficient and can provide more services to customers.
However, there is no implementation of privacy of the traffic sent over the MPLS, except to the degree that you trust the operator of the MPLS equipment along the way. If privacy is a concern, other encryption method such as end-to-end IPSec tunnels should be considered before injecting the traffic to MPLS backbones.
[edit] External Links
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- RFC 4364, BGP/MPLS IP Virtual Private Networks (VPNs)
