The network system involves a wide range of content, including not only network devices such as switches and routers, but also security devices such as firewalls and security audits. It is also necessary to consider the connection methods of communication lines such as optical cables and cables. Therefore, in order to make the whole network system more reasonable, more economical and have good performance, the following design principles should be followed in the design process.

(1) Good price/performance ratio

When designing a network system, the existing hardware resources must be protected first, and some well-running hardware devices and application software must be protected and used reasonably to save a part of the investment. In addition, due to the rapid development of network technology, the replacement cycle of network equipment is relatively short, and the application requirements change more frequently. It is necessary to choose equipment with mature, reliable and cost-effective technology to achieve practical, economical and effective results.

(2) Advanced

It should be based on the principle of focusing on practicality and effectiveness, and should be closely combined with the actual needs of specific applications. Technically, advanced network technology and network products should be adopted, and equipment with mature technology, good practical effect, high market share and good versatility should be selected, which can meet the requirements of 100Mb/s, 1000Mb/s, 10Gb/s Ethernet and asynchronous transmission. Communication needs, adapt to the rapid development of information technology, and have good technological advancement. At the same time, the network has good overall performance to ensure that the network cannot become the entire application system.system bottlenecks, and reserve some space for system expansion.

(3) Openness and scalability

In order to adapt to the continuous development and changes of services, and to ensure compatibility with different manufacturers, different types of network products and application software when increasing network nodes, business volume and expanding network extension distance, the network system uses open standards and technologies, not only to support The existing equipment must also support the future network technology of voice, video and data multi-network integration, and smoothly transition to the intelligent wiring system of enhanced distribution technology.

(4) High reliability and stability

The viability and stability of the network are very important and determine the normal operation of the enterprise network. In network design, whether it is network occupancy, communication lines, or network topology design, reliability should be considered. For example, redundancy and fault tolerance should be fully considered when selecting equipment. It will affect the normal operation of other parts of the system, and the fault is easy to diagnose and eliminate. At the same time, it is necessary to ensure that the network system has good adaptability to the environment, such as dustproof, waterproof, fireproof, and lightning protection.

(5) Security

Since a large amount of important data is often stored in the network, the security of the network system must be ensured. When designing the network, network equipment and network operating systems with good network security should be used, with a small error rate and relatively low error rate. Good anti-interference ability of the communication line, the use of certain encryption measures. At the same time, guide and train network administrators so that they can manage network security accounts and network communications, and ensure the security of data and servers.

(6) Maintainability

The entire network system should have good maintainability, not only to ensure the rationality of the entire network system design, but also to configure relevant detection equipment and network management facilities, so that when a network failure occurs, the cause can be promptly identified and the fault location can be located. resolve in time.