View computer network protocols by analogy

We know that computer systems can be divided into software and hardware, so we can also look at it when learning computer network protocols. We can regard the real computer network protocol as a special software, which can be installed and uninstalled on the computer, or optimized, but for this Protocol "software ", we need to take a special look. computer network Protocol (Protocol) is a special software and the most basic mechanism for computer networks to implement its functions.

Computer network protocols are essentially rules, that is, common rules that must be followed by various hardware and software. computer network protocols are not a set of independent software. They are integrated into all other software systems. Therefore, protocols are ubiquitous in the network.

Computer network protocols cover all layers of the OSI communication model. There are thousands of protocols from familiar TCP/IP, HTTP, and FTP protocols to OSPF and IGP.

For common users, you do not need to care too much about the underlying communication protocols. You only need to understand the communication principles.

In actual management, underlying communication protocols generally work automatically without manual intervention.

However, for a layer-3 or above Protocol, manual intervention is often required. For example, a tcp ip protocol requires manual configuration to work properly.

Three common communication protocols for LAN are tcp ip protocol, NetBEUI protocol, and IPX/SPX protocol.

The tcp ip protocol is undoubtedly the most important of the three protocols. As the basic protocol of the Internet, it is impossible to access the Internet without it. Any work related to the Internet is inseparable from the tcp ip protocol.

However, the tcp ip protocol is also the most troublesome among the three protocols. It is better to use a single machine to access the Internet. However, if you access the Internet through a LAN, you must set the IP address, gateway, and subnet mask in detail, DNS server and other parameters.

Although TCP/IP is currently the most popular computer network protocol, its communication efficiency in the LAN is not high. When using it to browse computers in "Network neighbors, browsing failures often occur.

The NetBEUI protocol is installed to solve this problem.

NetBEUI is the NetBios Enhanced User Interface, or the NetBios enhancement User Interface.

It is an enhanced version of the NetBIOS protocol and has been used by many * systems, such as Windows for Workgroup, Windows 9x series, and Windows NT.

The NETBEUI protocol is useful in many cases. It is the default * protocol used by the system before Windows 98.

The NetBEUI protocol is a short and concise broadcast protocol with high communication efficiency. It does not need to be set after installation. It is especially suitable for transmitting data in "Network neighbors.

In addition to the tcp ip protocol, it is recommended that NetBEUI be installed on LAN computers.

Note that if you want to add a Windows 98 machine with only the tcp ip protocol to the WINNT domain, you must also install the NetBEUI protocol.

The IPX/SPX protocol was originally developed by Novell for the NetWare network, but it is also very common now-most online games support IPX/SPX protocols, such as Starcraft, counter-terrorism elites, etc. although these games can also be online through the tcp ip protocol, it is clear that it is easier to use the IPX/SPX protocol because no setup is required.

In addition, IPX/SPX does not seem to be widely used in local area networks. If you are sure that you are not playing games on a local area network, this computer network protocol is dispensable.