Research on L2 and L3 VPN Based on MPLS
Luo Heng-yang · Computer Technology and Development · 2009
The conventional forwards data packages by tunnel which is set up over IP backbone via encapsulated technology.MPLS makes use of labels added in the header of datagram to forward the data packets over IP backboe.There are two ways to realize the VPN based on MPLS,that is,the methods of layer2 and layer3 VPN based on MPLS.States the main principle of MPLS technology and the structure of MPLS backbone.Analyzes the mechanism and topology of layer2 and layer3 VPN based on MPLS.Summarizes the characteristics which are possesd by layer2 and layer3 VPN.Proposes that on the basis of the property and target of network design a plan may be reasonably choosed to construct the MPLS VPN needed by customers.