Hardware based network simulation system and method

Abstract

The invention discloses a hardware based network simulation system. The system comprises a network simulation unit and multiple simulation nodes, wherein the network simulation unit adjusts the topological graph of the simulation nodes in a simulation network according to users, and configures characteristic parameters of a simulation link connected to the simulation nodes; and based on the adjusted network topological graph and the configured link characteristic parameters, the simulation nodes implements simulated experiments on the network protocols or server program via the simulation link. The invention further discloses a simulation method based on the network simulation system. Compared with a traditional network experiment platform, a network simulator computer (or embedded equipment) is connected with multiple simulation node computers, a simulation control system of the network simulator computer is operated to realize network topology change and configuration of the characteristic parameters of the simulation link, and the network protocol can be verified under different network topologies and link characteristic parameters via fewer common computers.

Description

technical field [0001] The invention relates to computer network technology, in particular to a hardware-based network simulation system and simulation method. Background technique [0002] In the design of Internet network protocol, experimental verification is one of the very important links. In the preliminary research of the prediction stage, it is not feasible to conduct large-scale deployment experiments. Therefore, it is necessary to use simulation methods to test the performance of communication protocols or routing protocols under different network topologies and link characteristics. [0003] At present, the simulation of network protocol performance mainly includes software simulation and simple demonstration system construction. Among them, network software simulation is a simulation technology that obtains network performance data required for network design or optimization by establishing statistical models of network equipment and network links, and simulatin...

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Problems solved by technology

Because the software simulation is not based on mathematical calculations, but based on statistical models, the randomness of statistical multiplexing is accurately reproduced, but due to the huge amount of calculation, it is difficult to achieve real-time performance, and at the same time, software simulation cannot realize the actual physical interface. There may be a certain gap between the results and the reality; the method of simple demonstration system construction is to build a fixed topology environment in the laboratory environment through pre-designed topology. This simulation method is real and credible, and can reflect some problems of the network protocol. Fixed, difficult to configure network link characteristics, poor operational flexibility, difficult to achieve large-scale simulation experiments

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