Aiming at the issues of the computer network experiments,this paper suggests the usage of the virtual machine as the platform of the network experiment courses where its specialties can be applied.

Exploration and construction of the teaching mode for interactive experimental network course;

The present paper proposes the concrete methods to realize the network laboratory open system scheme based on WEB technology and achieve the authentication and counting fees in long-distance network laboratory by means of RADIUS s authentication protocol to improve the safety in the use of such laboratory and the convenience in its administration.