Design method of virtual testing system of network device

Abstract

The invention relates to a design method of a virtual testing system of a network device. The method is realized by using the network chip and testing instrument in a software simulation network device, wherein the analog network chip and analog testing instrument both run on virtual machine, the network ports of the analog network chip and the analog testing instrument are mapped to the network ports of the virtual machine, and the network ports of the virtual machine adopt virtual connection. From the user's perspective, the processing to messages by the analog network chip is the same as the processing to messages by the real network chip except for the parts which are not considered in virtual test such as the processing speed which may be different from that of the real network chip; the analog network chip can be used to provide API for system software to interact; and the analog testing instrument can be used to transmit messages, receive messages and analyze message results according to the configuration of the user. The method of the invention can largely save the testing cost of the network device and find problems in diagnostic test easily and conveniently.

Description

(1) Technical field [0001] The invention relates to the field of testing, in particular to a virtual testing system, in particular to a virtual testing system for network equipment. (2) Background technology [0002] The network equipment generally includes two parts: network chip and system software. In order to improve the speed of network equipment processing packets and reduce the load on the CPU, the logic that needs high-speed processing is generally placed in the network chip to achieve high-speed processing in hardware, while other parts are processed by system software. [0003] The test work of the network equipment mainly includes two parts: the test of the network chip and the test of the system software. At present, the test of the network chip generally adopts hardware emulation. The RTL code of the network chip is compiled and synthesized into an object file, and then loaded into the FPGA of the emulation board, and finally tested on the emulation board. The...

AI Technical Summary

Problems solved by technology

[0006] 1) A large number of test instruments are required, and the test cost is very high

[0007] Test instruments, hardware simulation boards and development boards are very expensive. Due to the heavy workload of testing, many testers are generally required to test at the same time, so there is a great demand for test instruments

At the same time, if complex topological structures are to be tested, multiple devices under test are required, which further increases the demand for test instruments

[0008] 2) It is inconvenient to diagnose the problem

[0009] Since the test is carried out on the hardware emulation board, when a problem is found in the test, it is impossible to easily track the internal processing flow of the network chip, which makes the diagnosis of many problems more troublesome

Images