MPLS VPN
Encyclopedia
MPLS VPN is a family of methods for harnessing the power of Multiprotocol Label Switching
(MPLS) to create virtual private network
s (VPNs). MPLS is well suited to the task as it provides traffic isolation and differentiation without substantial overhead.
) 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.
Multiprotocol Label Switching
Multiprotocol Label Switching is a mechanism in high-performance telecommunications networks that directs data from one network node to the next based on short path labels rather than long network addresses, avoiding complex lookups in a routing table. The labels identify virtual links between...
(MPLS) to create virtual private network
Virtual private network
A virtual private network is a network that uses primarily public telecommunication infrastructure, such as the Internet, to provide remote offices or traveling users access to a central organizational network....
s (VPNs). MPLS is well suited to the task as it provides traffic isolation and differentiation without substantial overhead.
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/ForwardingVRF
In IP-based computer networks, Virtual Routing and Forwarding is a technology that allows multiple instances of a routing table to co-exist within the same router at the same time...
) 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
IPsec
Internet Protocol Security is a protocol suite for securing Internet Protocol communications by authenticating and encrypting each IP packet of a communication session...
tunnels should be considered before injecting the traffic to MPLS backbones.