Abstract: This paper is a preview of computer network`s solution based on mobile agents systems. Agents-based system, in this particular case, is a collection of autonomous, mobile, software agents, which are physically located in computer network`s nodes. Agents collaborate and communicate with each other in purpose to accomplish established task. Agents are characterized by two, most important properties: autonomy (ability to undertake actions independently) and mobility (ability to change physical location). Agents systems could have many applications in computer network as: load balancing, intrusion detection, node management, and monitoring; however all this functionality can be implemented in architecture client server .the concept of agent-based system brings new capability and properties. Agents systems are considered as dynamic, scalable, distributed, and alternative concept of static, centralized computer networking systems. This paper will validate use of this class of systems and indicate its advantages and drawbacks, based on many examples.