Shulou(Shulou.com)06/02 Report--

This article mainly introduces the address format in the computer network, which has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, let the editor take you to know it.

There are five address formats in the computer network, they are: 1, the network identification of class An addresses is represented by the first set of 8-bit binary numbers; 2, the network identification of class B addresses is represented by the first two groups of 8-bit binary numbers; 3, the network identification of class C addresses is represented by the first three groups of 8-bit binary numbers; 4, class D is used for multicast; 5, class E is reserved.

There are five address formats in the computer network, which are:

In order to facilitate addressing and hierarchical construction of the network, IP addresses are divided into five categories A, B, C, D, and E.

Only A, B and C are used in commercial applications.

1. Class An address: the network identity of Class An address is represented by the first set of 8-bit binary numbers.

The host identity in the network accounts for three groups of 8-bit binary numbers.

The characteristic of a class An address is that the first binary value of the network identity must be "0".

It is not difficult to calculate that class An addresses allow 126network segments, and each network allows about 16.7 million hosts, which are usually assigned to hosts.

A network with a large number of hosts (such as a backbone).

2. Class B address: the network identity of Class B address is represented by the first two sets of 8-bit binary numbers.

The host identity in the network accounts for two sets of 8-bit binary numbers.

The characteristic of class B address is that the first two binary digits of the network identity must be "10".

Class B addresses allow 16384 network segments and 65533 hosts per network, which is suitable for networks with more nodes

(e. G. area network).

3. Class C address: the network identity of Class C address is represented by the first three sets of 8-bit binary numbers.

The host identity accounts for a set of 8-bit binary numbers in the network.

The characteristic of class C address is that the first three binary digits of the network identity must be "110".

The network with class C address allows 254 hosts, which is suitable for networks with few nodes (such as campus network).

4. Class D

224.0.0.0 to 239.255.255.255

For Multicast

5. Category E

240.0.0.0 to 255.255.255.254 reserved

Of which 255.255.255.255 is used for broadcasting

Thank you for reading this article carefully. I hope the article "what are the address formats in the computer network" shared by the editor will be helpful to everyone? at the same time, I also hope that you will support and pay attention to the industry information channel. more related knowledge is waiting for you to learn!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.