作为比较,数据在IP层成为Datagram,数组分组称为分片(Fragment)。UDP中分组成为Message。 回到顶部(go to top) 运作方式 TCP协议的运行可以划分为三个阶段:连接阶段(connection establishment)、数据传送(data transfer)和连接终止(connection termination)。操作系统将TCP连接抽象为套接字表示的本地端点(Local end-point)...
面向连接的TCP协议要求每次peer间通信前建立一条TCP连接,该连接可抽象为一个4元组(four-tuple,有时也称socket pair):(local_ip, local_port, remote_ip,remote_port),这4个元素唯一地代表一条TCP连接。 1)TCP Connection Establishment TCP建立连接的过程,通常又叫“三次握手”(three-way handshake),可用下图来...
1.Layers in Internet: TCP and Application 2.TCP Connection Establishment 3.Incoming Connection Request Queue
客户端角度:因为客户端发送完ACK包已经进入了Establishment状态。客户端向服务端发送数据,服务端会以RST包进行相应,客户端就能感知Server的链接错误了。 5. TCP的可靠传输 5.1 TCP的流与报文段 流分段的依据 MSS: 防止IP层分段 IP层分段的效率低下 流控制: 控制端的接收能力 MSS(Max Segment Size):仅指TCP...
PROBLEM TO BE SOLVED: To provide a method capable of reestablishing connection between a client device and a server device if power supply is restarted, when power supply of the client device side has been shut down during communication.MOCHIDA IKUO...
原版书名:TCP/IP Illustrated, Volume 1: The Protocols, Second Edition 内容简介: 《TCP/IP详解》是已故网络专家、著名技术作家W.RichardStevens的传世之作,内容详尽且极具专业,被誉为TCP/IP领域的不朽名著。 《TCP/IP详解·卷1:协议(英文版第2版)》是《TCP/IP详解》的第1卷,主要讲述TCP/IP协议,结合大量实...
《TCP/IP详解》是已故网络专家、技术作家W. Richard Stevens的传世之作,内容详尽,被誉为TCP/IP领域的不朽名著。 本书是《TCP/IP详解》三卷本的第1卷,主要讲述TCP/IP协议,并结合大量实例讲述TCP/IP协议族的定义原因,以及在各种不同操作系统中的应用及工作方式。本书的显著特点是,不仅仅描述协议及其功能,而且用...
Assume that a source machine with IP Address 192.168.1.62 has established a connection with destination machine having IP Address 192.168.1.2 over TCP port 445. The source machine is sending data (SMB Negotiate packet) which is being retransmitted five times, as seen below. After no ...
ICE (Interactive Connectivity Establishment)协议基于SDP offer/answer 模式,为多媒体传输协议定义了一套NAT穿越机制。ICE 对每一种流媒体都提供了一系列候选传输地址,流媒体双方可以利用STUN (Session Traversal Utilities for NAT)来进行数据连接。通常情况下,ICE 的候选地址大都是基于UDP协议的,但是TCP协议对于流媒体...
These are used to terminate a TCP session- more specific (RST) is used when a half open or SYN, ACK-SYN but no ACK from the client is received, tying up a TCP session in the TCP/IP stack on the server which the RST resets and kills the connection. FIN is used when you close yo...