tcp ip illustrated

TCP/IP protocol stack This section briefly introduces the internal structure of TCP/IP and lays the foundation for discussing Internet-related security issues. TCP/IP protocol groups are popular in part because they can be used on

1 TCP/IP Overview 1.1 TCP/IP protocol Generally speaking, the TCP/IP protocol refers to the "TCP/IP protocol family", which refers to th

Analysis of TCP/IP layer-4 protocol system and tcpip layer-4 Protocol TCP/IP layer-4 protocol system 1) The link layer, also known as the data link layer or network interface layer, usually includes the device driver in the operating system and the network interface card corresponding to the computer. They work togeth

1, to understand the HTTP and socket first to be familiar with the network layer seven: The number of net transfer table should be,2,http protocol: Hypertext Transfer Protocol, which corresponds to the application layer, is used to encapsulate the data.TCP/UDP protocol: Transmission protocol, which corresponds to the transport layer, mainly solves the data transmission in the network.IP protocol: Corresponds to the network layer, also solves the data in the network transmission.When transmitting

Analysis of TCP/IP packet based on JPCAPOriginal: Zhao HuiDirectoryChapter One structure of Ethernet and TCP/IP1.1 Structure of the Ethernet1.1.1 Ethernet based on network architectureData exchange of 1.1.2 Ethernet1.1.3 Structure of Ethernet frames1.2 The composition of IP datagrams1.2.1

Tcp/ip1. Basic conceptsWhy would there be TCP/IP ProtocolAll over the world, a wide variety of computers run their own different operating systems for everyone, and these computers are used in many ways when expressing the same message. It is as if God in the Bible has disturbed the accents of people everywhere and made them unable to cooperate. Computer users re

OSI Reference ModelOSI RM: Open Systems Interconnect Reference Model (open Systeminterconnection Reference Model)The OSI Reference model has the following advantages: Simplifies the related network operation; Provide compatibility and standard interface between devices; promote standardization work; The structure can be separated; Easy to implement and maintain. Since the 1960s, the computer network has been growing rapidly. In order to do

Programming via Java Network (1) network architecture and communication Protocols I know that the IP protocol corresponds to the network layer, the TCP protocol corresponds to the transport layer, and the HTTP protocol corresponds to the application layer,The three are inherently not comparable The TPC/IP protocol is a transport layer protocol that mainl

One; prefaceThe people who have learned the TCP/IP protocol have a feeling, this thing is too abstract, there is no data instance, after reading soon forget. This article will introduce an intuitive learning method, using the Protocol analysis tool to learn TCP/IP, in the process of learning to visually see the specifi

First, let's take a look at the network level distribution map　HTTP, Socket, TCP the location of the three in the TCP/IP protocol family:With a preliminary understanding, I know that the IP protocol corresponds to the network layer, the TCP protocol corresponds to the transp

Tags: large number data link layer custom tin access number of users messages access NICFirst, the TCP/IP protocol familyComputers and network devices need to communicate with each other, and both must be based on the same method. Rules such as how to detect a communication target, where to initiate communication, which language to use for communication, and how to end the communication need to be determine

TCP/IP RoamingTCP/IP is the foundation of the Internet Protocol stack, which includes dozens of large and small protocols. This article is mainly related to HTTP, TCP, IP protocol. We often learn that the network model is seven or five layers, in fact, it is generally believ

TCP/IP is the communication protocol of the Internet. A communication protocol is a description of the rules that a computer must obey, and the computer can communicate only if the rules are followed. Both the browser and the server are using TCP/IP Both Internet browsers and Internet services use

Internet technology in wireless networks. At the same time, the huge interconnectivity of the global Internet is a great incentive. Because small devices such as sensors are often required to be small and cheap, the implementation of network protocols must handle limited computing resources and memory. This article describes the design and implementation of a small TCP/IP protocol stack that becomes LWIP.

TCP/IP, UDP, HTTP, socket inside and out The network is divided from bottom to top: corresponding Physical Layer Data Link Layer Network layer (IP protocol) Transport layer (TCP protocol) Session Layer Application layer and Presentation layer (HTTP protocol) The socket is the encapsulation and application of the

server side becomes established->close_wait->last_ack->closed.The above refers to a noun, 2MSL (Maximum Segment Lifetime)· The TIME_WAIT state isalso called the 2MSL WAIT state.· Every implementation mustchoose a value for the maximum segment Lifetime (MSL). It is the maximum amount of time any segment can exist in the network before being discarded.· RFC793 Specifies the Mslas 2 minutes. Common implementation values, however, are 30seconds, 1 minute, or 2 minutes. Recall that the limit on lif

Talk about sockets, TCP/IP, HTTP, FTP, and network programming SubmitMy message Load inhave left a message 1 What's all this?Since it is a network transmission, involving the interaction between several systems, the first thing to consider is how to accurately locate one or several hosts on the network, and the other is how to carry out reliable and efficient data transmission. T

TCP/IP is a shorthand for the "transmission Control protocol/internet Protocol", the Chinese translation is the Transmission Protocol/Internet Protocol. TCP/IP is not a protocol, but a generic term for a protocol cluster. It is the foundation of today's Internet and it is important for programmers to understand it. Tal

The TCP/IP reference model is a very basic, but also very important, basic framework for getting started. This is a basic concept that must be mastered, and this document uses a simple example to analyze the basic process of a digital pass with a reference model.The network environment is very simple, as shown, we now analyze the PC to access webserver Web services, how the entire data communication process

TCP/IP OverviewTCP/IP is generally considered to be a four-layer protocol: Link layer. Also known as the data Link layer or network interface layer, including device drivers and network interface cards, which work together with the physical interface details of the cable. Network layer. Handles the grouping of activities in the network, such as the r