Network area traffic compressing and distributing system based on virtual link exchange

The invention discloses a network area traffic compressing and distributing system based on virtual link exchange. In a system master control unit, a graphical method is used for realizing customization of a network scene by designing network topology, delineating a flow simulation area and configuring a virtual link path; the flow characteristic of an area network is determined through analyzing the network scene to realize the automatic generation of flow exchange configuration; the boundary flow of the area network is simulated by realizing the transceiving of an aeroelectronic full duplex switched Ethernet protocol data frame through the driving of a NPF (Netgroup Packet Filter) protocol, so as to realize the compression generation of the flow; and an auxiliary exchange unit realizes transit flow forwarding by capturing and analyzing the converged output flow of an exchange unit. A port-based VLAN (Virtual Local Area Network) dividing technology is adopted in the exchange unit for logically grouping ports to realize the isolation of reports at a data link layer; and a fixed router is configured to enable the exchange unit to forward data according to a VLAN mapping relationship between a fixed MAC (Media Access Control) address table and the ports, so that the injection distribution and transit forwarding of the flow are realized.