Pseudo wire label reflector, an edge equipment, and a two-layer virtual network

A pseudo wire label reflector comprising:

• a signaling receiving/sending unit for receiving and sending a label distribution protocol signaling message;
• a pseudo wire label list for depositing pseudo wire labels and the related information;
• a packing/unpacking unit for packing a L2 data package into a multiprotocol label switching data package and unpacking a multiprotocol label switching data package into a L2 data package;
• a multiprotocol label switching and transferring unit for receiving and sending a multiprotocol label switching data package;
• a mode management unit for determining the mode for switching and transferring the pseudo wire label message;
• a first session management unit for storing the support information that label distribution protocol signaling session connection supports pseudo wire label reflecting capacity;
• a first pseudo wire label receiving unit for receiving the pseudo wire label message;
• a first pseudo wire management unit for storing the switched pseudo wire state and determining whether to modify the pseudo wire label message according to the switch and transfer mode determined by the mode management unit;
• and
• a first pseudo wire label sending unit for sending the pseudo wire label message.