What are the main networking types and characteristics?

Bus, star network, ring network.

There are three common ones:

1. Broadband. Router Networking This networking mode requires the purchase of a shared Internet device-broadband router to perform the NAT conversion function of the network, so as to achieve the purpose of sharing Internet access. Generally, the broadband routers sold on the market provide 4 LAN ports, which can be connected to 4 computers at the same time to achieve shared Internet access, which is basically about 100 yuan, and is better than the dual-machine interconnection and sharing Internet mode from the cost of each port, and has many functions that can not be achieved by dual-machine sharing Internet, which is a networking mode that we highly recommend.

2. Wireless broadband router networking mode Wireless broadband router networking mode is more suitable for users who do not want to carry out network wiring at home, and at the same time, home wireless broadband routers generally provide 4 LAN ports, which can realize the seamless connection of wireless network and wired network. However, this networking mode has higher requirements for the environment, when the shielding is better or the connection distance is farther, the coverage and strength of the signal will also decrease accordingly (in a sense, wireless networking can only be a supplement to wired networking, and can not be used as the preferred networking mode) and ** is nearly 100 yuan more expensive than broadband routers, and users can choose according to their actual needs.

3. Dual-NIC interconnection networking Before the emergence of broadband routers, dual-NIC interconnection networking was all the rage and was favored by many home networking users. As shown in the figure below, the networking of this mode uses a machine to install the first server software, provides shared services for another computer, realizes NAT conversion, and achieves the purpose of sharing the Internet.

Usually there are two kinds of networking: wireless networking and wired networking, the former has high networking efficiency, fast effect, strong scalability, free use, poor stability and high requirements for related equipment. For example, the wireless network card needs to be purchased separately and configured with the latter networking, the efficiency is low, the scalability is poor, the demand for network equipment in the early stage is high and there is a limit on the number of connections, and it is not easy to manage, of course, its advantage lies in its powerful rate, high stability, if the wireless network is recommended for a small range of networking. The networking mode is a powerful wireless router and N wireless network cards, if a large range of networking, it is recommended to use enterprise-level 3 layer switching equipment to improve reliability and the number of connections, and the later maintenance and management will also be easier, if you want to arrange a hybrid small network, you can use home multi-port wireless routing, which can achieve the effect of double coverage.

If you have a large hybrid network, it is recommended to find a dedicated network team, which is not a task that can be completed by 1 or 2 people.

The form of data communication network networking: cable communication, microwave relay communication, etcFiber optic communications, satellite communications, mobile communications.

A data communication network is a telecommunication network composed of data communication services. The telecommunication network established, operated and operated by a certain department and providing data transmission services for the department is a dedicated data communication network; The telecommunications network established and operated by the telecommunications department to provide data transmission services to the public is a public data communication network.

Business characteristics provisions

1. Access attributes.

The access attribute mainly stipulates that the data terminal has the user service category, numbering system, network performance requirements, call signal, network interconnection requirements, user interface, basic services and optional supplementary services for users, channel transmission characteristics requirements, etc., so as to follow them when designing the network and obtain good data transmission performance.

2. Network service performance parameters.

Network service performance parameters are used to characterize the performance of a data communication network. CCITT makes recommendations on service performance parameters for base-based circuit-switched data networks, base-based packet-switched data networks, and leased circuits, respectively.

3. User interface suggestions.

In order to facilitate all kinds of user data terminals to access the data communication network to obtain the required data transmission services, the user interface needs to be specified. Packet terminals accessing packet-switched data networks must comply with the recommendations.

4. Numbering system.

The numbering system takes into account the particularity of the data communication network, and the numbering system of the data communication network is different from the numbering system of the user telegram network and ISDN PSTN.

Summary. At present, there are basically the following four networking methods:

1.Router bridging uses two as well as three routers to increase signal coverage through a wired connection, which can be used both wired and wireless.

Advantages: Low cost, old routes can be used for networking.

Disadvantages: Wiring may be required in advance, and seamless switching of wifi signals cannot be realized.

At present, the most stable networking mode uses a PoE router to directly supply power to the AP panel through the network cable, which is the most stable solution.

Disadvantages: Need to wire in advance, PoE equipment fee.

Amplifier The power modem allows the wire to undertake the work of network cable signal transmission through frequency conversion, thereby increasing the coverage.

Pros: Cheap, simple, no wiring.

Disadvantages: The signal is easy to be interfered with, the distance is long but the quality cannot be guaranteed.

What are the networking methods?

At present, there are basically the following four networking methods, which are 1Router bridging uses two as well as three routers to increase signal coverage through a wired connection, which can be used both wired and wireless. Pros:

Low cost, you can use the old route for networking Disadvantages: It may need to be wired in advance, and it is impossible to realize the seamless switching of wifi signals The most stable networking mode at present, the PoE router is used to directly supply power to the AP panel through the network cable, advantages: the most stable solution at presentDisadvantages:

Need to wire the network in advance, PoE equipment fee amplifier Power Cat through the way of frequency conversion, let the wire undertake the work of network cable signal transmission, so as to increase the coverage Advantages: cheap, simple, no need for wiring Disadvantages: the signal is easy to be interfered with, the distance is far but the quality can not be guaranteed.

Routing networkingMesh router is a mesh network, in which different devices and different access points can be mixed in the form of stars, trees, series connections and buses. It can be networked through wired mesh or wireless mesh. Pros:

Wired and wireless are available, wifi signal seamless switching, wider coverage Disadvantages: Some brands of mesh road reputation are expensive.

Hello, there are the following ways:

1. Internet networking.

In order to meet the communication needs of enterprises and save costs, enterprises can consider using pure Internet networking.

Implementation: All branches across the country are connected to the Internet network of an ISP, and the transmission efficiency will be better in the backbone network of the same operator.

This method of networking is relatively simple, as long as there is an Internet, you can set up a VPN through the device to achieve internal communication. However, the relative product is relatively simple, and the network quality is not guaranteed.

2. SDH, DDN and MSTP data link networking.

The common Ethernet data link networking mode in China is the first generation of the operator's recommended networking mode, and at present, many enterprises such as domestic government agencies and financial industries have adopted this method to achieve internal application interaction.

This is a LAN solution that is completely isolated from the Internet. SDH is a Layer 2 circuit, which has high reliability, transmission rate, delay and bandwidth.

The only drawback is that this method is not flexible enough to network, and the network is relatively high.

3. MPLS VPN networking.

Because the SDH networking mode is not flexible enough, and in order to meet the multi-party needs of enterprises for management, a new networking mode was born: MPLS-based networking.

This mode is also a LAN networking scheme and is isolated from the Internet. It is the networking mode between Layer 2 and Layer 3, the networking is more flexible, and the security price is relatively low.

This method is suitable for multi-point networking, and has obvious advantages in the process of multi-point communication. Because of the SLA commitment, it is widely used by enterprises.

All in all, there are various internal networking methods in enterprises, and it is necessary to choose the networking mode according to the actual needs of the enterprise to meet the internal communication needs of the enterprise. Enterprise networking can effectively enhance the competitiveness of enterprises, and the investment in enterprise IT is to contribute to productivity.

Hope, thank you

Computer networks are classified according to the scope of their coverage, which can be divided into local area networks, metropolitan area networks, and wide area networks.

SD-WAN is a new type of network architecture that can integrate multiple WAN connections into a virtual network through software-defined network technology, so as to achieve network efficiency, security, and reliability.

According to different networking methods, SD-WAN can be divided into the following types:

1. Centralized SD-WAN

Centralized SD-WAN means that all network traffic is managed and scheduled through a central controller. This approach enables centralized management and control of the network, but if the central controller fails, the entire network will be paralyzed.

2. Distributed SD-WAN

Distributed SD-WAN refers to the distribution of network traffic to multiple locations for management and scheduling. This method can improve the reliability and fault tolerance of the network, but it also increases the complexity and management of the network.

3. Hybrid SD-WAN

Hybrid SD-WAN refers to the combination of centralized and distributed methods, which can not only achieve centralized management and control, but also improve the reliability and fault tolerance of the network. This method can be flexibly adjusted and deployed according to the actual situation.

1) Dispersion. It is not a combination of a few or dozens of large strategic business units, but a consortium of enterprises consisting of a large number of small-scale business units, which have a great deal of independence.

2) Innovation. The increase in the power and responsibility of grass-roots enterprises caused by the development of this organizational form needs to promote the responsibility of grass-roots managers for the business performance of their own units.

3) High efficiency. Under this organizational form, the administrative and auxiliary functions were streamlined.

4) Collaboration. In this form of organization, the resources of independent small-scale business units are limited, and they must rely heavily on extensive cooperation with other units in their production and operation.