tcp/ip协议udp协议-阿里云

TCP和UDP协议（深信服X计划）

文章目录一、TCP协议概述二、TCP三次握手和四次挥手三、UDP协议概述四、TCP和UDP对比及应用场景一、TCP协议概述TCP (Transmission Control Protocol传输控制协议)是一种面向连接的、可靠的、基于字节流的传输层通信协议，由ETF的RFC 793定义。在简化的计算...

揭开tcp&udp协议的真实面貌

标题：揭开tcp&udp协议的真实面貌引言：tcp需要解决网络不可靠带来的所有不确定因素，作为很多应用层的首选传输协议，udp只管数据的发送与接收，高效的收发机制成为很多通讯应用的首选。1、网络通信网络有若干个机器节点连接而成的链路构成，类似路由器、交换机、防火墙、无线接入点、电脑、打印机...

TCP/UDP协议基本概念

TCP和UDP协议是TCP/IP协议的核心。 TCP 传输协议：TCP 协议是一TCP (Transmission Control Protocol)和UDP(User Datagram Protocol)协议属于传输层协议。其中TCP提供IP环境下的数据可靠传输，它提供的服务包括数据流传送、可靠性...

浅谈TCP和UDP协议

TCP和UDP的区别我们大多数人的回答是，TCP是面向连接的，UDP是面向无连接的。那么什么是面向连接，什么是面向无连接？，再互通之前，面向连接的协议会先建立连接，例如：TCP会三次握手，而UDP不会。所谓的建立连接，是为了在客户端和服务端维护连接，而建立一定的数据结构来维护双方交互的状态，用这样...

TCP/UDP常见协议端口对照表【整理，持续更新】

著名端口端口号码 / 层名称注释1tcpmuxTCP 端口服务多路复用5rje远程作业入口7echoEcho 服务9discard用于连接测试的空服务11systat用于列举连接了的端口的系统状态13daytime给请求主机发送日期和时间17qotd给连接了的主机发送每日格言18msp消息发送协议1...

终于把 TCP 与 UDP 协议整明白了！

网络编程有三个要素，分别是IP地址、端口号和通信协议，那本文主要讲述的是TCP与UDP这两种通信协议，以及编程的实现。首先，我们需要了解一下IP地址、端口号、通信协议的相关知识。一、IP地址网络中的计算机使用IP地址来进行唯一标识，IP地址有IPv4和IPv6两种类型。IPv4采用十进制或二进制表示...

【转】关于TCP和UDP协议消息保护边界的介绍

在 socket网络程序中，TCP和UDP分别是面向连接和非面向连接的。因此TCP的socket编程，收发两端（客户端和服务器端）都要有一一成对的 socket，因此，发送端为了将多个发往接收端的包，更有效的发到对方，使用了优化方法（Nagle算法），将多次间隔较小且数据量小的数据，合并成一个大的数...

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