tcp ip guide

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

1. TCP/IP protocol stack Four-layer modelTCP/IP This protocol adheres to a four-tier model concept: The application layer, the transport layer, the interconnect layer, and the network interface layer.Network interface LayerThe base of the model is the network interface layer. Responsible for the transmission and reception of data frames, the frame is an independ

1 Overview of TCP/IP 1.1 TCP/IP protocol Commonly referred to as TCP/IP protocol refers to the "TCP/IP protocol Family", which includes

Summary, TCP/IP is the Transport layer protocol, the main solution to the data in the network transmission, socket is the implementation of TCP/IP protocol, is the TCP/IP protocol encapsulation and application, belongs to the prog

Recently, I am crazy about supplementing the foundation and looking at the TCP/IP protocol. However, the content in the book is too abstract, and there is no data instance. After reading it for a long time, I forget it. Therefore, we moved a sniffer and captured the data packets. Haha, I had to explain it in the book, and I understood it faster. I will add some basic knowledge. Let's get started with the

how the TCP/IP protocol stack works 2010-11-14 21:05:42 Tags: tcp congestion control Slow start retransmission restore original works, allow reprint, please be sure to mark the article original source , author information and this statement in the form of hyperlinks. Otherwise, the legal liability will be investigated. http://jasonccie.blog.51cto.com/214395

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

means this is a sack packet length of 2, no content part 8 indicates a timestamp, length is 10, and 8 bytes of time stamp*/ typedef struct _TCP_OPTIONS{Char M_ckind;Char m_clength;Char m_ccontext[32];}__ATTRIBUTE__ ((Packed)) tcp_options, *ptcp_options; the definition of UDP head structure /*UDP header definition, total 8 bytes */ typedef struct _UDP_HEADER{unsigned short m_ussourport; Source Port number 16bitunsigned short m_usdestport; Destination port number 16bitunsigned short m_uslength

The network is divided from bottom to top : corresponding Physical Layer-- Data Link layer-- Network Layer--IP protocol Transport Layer--TCP protocol Session Layer-- presentation layer and Application Layer-HTTP protocol 1. TCP/IP connection Mobile phone can use the network function is because the bottom of the mobile

According to the previous several protocols, the IP protocol, TCP protocol, and UDP protocol are combined, so the TCP/IP protocol is available. Nowadays, communication between many applications is based on the TCP/IP protocol and

TCP/IP protocol ----- excellent notes, tcpip protocol -----1. Introduction The TCP/IP Protocol is not a single TCP Protocol or an IP Protocol. It is a group of protocols, including TCP

Concepts of computer communication protocols Computer Communication Protocols are descriptions of the rules that computers must comply with in order to communicate with each other. What is TCP/IP? TCP/IP is a communication protocol for computers connected to the Internet. TCP