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

Abstract

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.

Description

technical field [0001] The invention relates to a system for compressing and distributing traffic in a distributed network area realized by means of virtual link switching. Background technique [0002] Avionics full-duplex switched Ethernet is a network technology that is adapted to the interconnection of large aircraft avionics systems on the basis of industrial standard Ethernet. Resources are effectively allocated and isolated, which greatly enhances the real-time and reliability of the network. In the end system, traffic shaping based on virtual links is used to ensure and limit the bandwidth requirements of virtual links; in switches, static routing and flow control based on virtual links are used to achieve deterministic forwarding and bandwidth control. . [0003] Network testing is an effective auxiliary means for network management, which is conducive to improving the operating efficiency and security of the network, and has important guiding significance for the...

AI Technical Summary

Problems solved by technology

The present invention adopts the combination of centralized and distributed modes to realize the design and generation of traffic in the network area, overcomes the shortcomings of the traditional distributed traffic generation system, such as complex composition and inconvenient configuration, and improves the automation degree of traffic generation

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