PSEUDO WIRE LABEL REFLECTOR, EDGE APPARATUS, TWO-LAYER VIRTUAL PRIVATE NETWORK, AND THE METHOD TO PROVIDE PSEUDO WIRE SERVICE

摘要

Pseudo wire label reflector, based on current label distribution router, Earthier includes: mode management unit, for setting the mode of relaying and forwarding pseudo wire label message; first session management unit, for preserving the support information which LDP signal session connection acts on pseudo wire. Label reflecting capacity; first pseudo wire label receiving unit, for receiving pseudo wire label message; first pseudo wire management unit, for preserving tie status of relayed pseudo wire and deciding whether to modify pseudo wire label message according to relayed transmitting mode set by. Mode management unit; first pseudo wire label transmitting', unit, for transmitting pseudo wire label message. The invention also provides an edge apparatus, a L2VPN and a method for serving in L2VPN. The invention facilitates PE equipment serving pseudo wire and pseudo wire label reflector setting up the connection of PSN and LDP signal, by providing pseudo wire label reflector and strengthening current edge apparatus supporting the capacity of pseudo wire label reflector.