TCP/IP 是Internet最基本的协议、Internet国际互联网络的基础，由网络层的IP协议和传输层的TCP协议组成。TCP/IP 定义了电子设备如何连入因特网，以及数据如何在它们之间传输的标准。协议采用了4层的层级结构，每一层都呼叫它的下一层所提供的协议来完成自己的需求。
TCP/IP is the basis for Internet basic protocol, Internet international network, composed of IP as the network layer and transport layer protocol TCP. TCP/IP defines how electronic devices connected to the Internet, and how the data transmission between the standard. Protocol adopts hierarchical structure of 4 layers, each layer call it the next layer provided by the agreement to complete their own needs. (2014-07-29, Unix_Linux, 11773KB, 下载3次)
NDN(Named Data Networking)是由加州大学洛杉矶分校Lixia Zhang团队为首开展的研究项目，该项目由NSF Future Internet Architecture(FIA)资助，开始于2010年。NDN的提出是为了改变当前互联网主机-主机通信范例，使用数据名字而不是IP地址进行数据传递，让数据本身成为因特网架构中的核心要素。NDN保持沙漏模型，采用七层结构，下层协议都是为了适配底层物理链路和通信而设计，上层协议为对应相关的应用而设计。与TCP/IP模型最大的区别就是在中间层用命名数据(内容块)取代IP 。Content-centric Networking(CCN)由PARC的Van Jacobson在2009年提出。CCN和NDN仅是叫法不同，无本质上的区别。这是ccn第7版实现代码
NDN (Named Data Networking) is a UCLA team led by Lixia Zhang conduct research projects funded by the NSF Future Internet Architecture (FIA) funding, which began in 2010. NDN was proposed to change the current Internet hosts- host communication paradigm, using the data name instead of the IP address for data transfer, let the data itself becomes a core element of the Internet architecture. NDN remains an hourglass model, using seven structures are designed to fit the bottom of the lower layer protocols and physical communications link designed to correspond to the upper layer protocol-related applications. The biggest difference with the model TCP/IP is used in the intermediate layer name instead of IP data (content block). Content-centric Networking (CCN) proposed by the PARC s Van Jacobson in 2009. CCN and NDN is just a different name, no essential difference. This is the 7th edition ccn implementation code (2014-06-06, Unix_Linux, 28003KB, 下载16次)
tcpcopy是一种应用请求复制（基于tcp的packets）工具，其应用领域较广，我们曾经应用于网易的广告投放系统，urs系统，nginx hmux协议开发等系统，避免了上线带来的很多问题。 总体说来，tcpcopy主要有如下功能： 1）分布式压力测试工具，利用在线数据，可以测试系统能够承受的压力大小（远比ab压力测试工具真实地多）,也可以提前发现一些bug 2）对于后端的短连接，请求丢失率非常低(1/10万)，可以应用于热备份 3）普通上线测试，可以发现新系统是否稳定，提前发现上线过程中会出现的诸多问题，让开发者有信心上线 4）对比试验，同样请求，针对不同或不同版本程序，可以做性能对比等试验 5）利用多种手段，构造无限在线压力，满足中小网站压力测试要求 6）实战演习（架构师必备） tcpcopy可以用于实时和离线回放领域，并且tcpcopy支持mysql协议的复制，开源一年以来，功能上越来越完善。 如果你对上线没有信心，如果你的单元测试不够充分，如果你对新系统不够有把握，如果你对未来的请求压力无法预测，tcpcopy可以帮助你解决上述难题。
tcpcopy It is an online TCP duplication tool and can be used for testing (using netlink and raw sockets). Description: It can help you find bugs without deploying your server software on your production servers.It can also be used to do smoke testing against your products. For example, when you want to migrate your web server from Apache to Nginx, tcpcopy can help you test it. Apache is running online, while tcpcopy can copy the TCP flows from Apache to Nginx. To Nginx, the TCP flows are just forwarding to it. This will not affect Apache at all except cost a little network bandwidth and CPU load. Scenarios: 1) Distributed stress testing Use tcpcopy to copy real-world data to stress test your server software. Bugs that only can be produced in high-stress situations can be found. 2) Hot backup It is very suitable for backup tasks if connections are short-lived. The request loss ratio is quite low (e.g. 0.00001). 3) Online testing Prove (2012-10-10, Unix_Linux, 2KB, 下载8次)
工业级linux moxa嵌入式工控板 测试例子源代码。方便2次开发。里面包含串口，以太网，tcp，udp编程
LINUX UDP TCP (2010-09-17, Unix_Linux, 2488KB, 下载28次)
nucleus+的以太网协议栈
nucleus+ Ethernet protocol stack (2010-05-14, Unix_Linux, 318KB, 下载27次)
在 Microchip单片机上实现 TCP/IP（传输控制协议/网
际协议）不需要任何创新之举。感兴趣的开发人员可以
很容易找到许多 Microchip 产品的商业和非商业的
TCP/IP 实现方案。本应用笔记详细说明了Microchip 公
司自己免费提供的 TCP/IP协议栈。
Microchip microcontroller to achieve in the TCP/IP (Transmission Control Protocol/Internet Protocol) does not require any innovations. Interested developers can easily find a number of Microchip products, commercial and non-commercial TCP/IP implementations. This application note details Microchip' s own freely available TCP/IP protocol stack. (2009-12-26, Unix_Linux, 462KB, 下载16次)
PPPoE大家见过，有没有见过 PPP over TCP呢，其实PPP只是一种串行协议而已，既然可以 Over以太网，自然也可以 Over TCP了，下次再给大家上个 Over SSH的。
PPPoE we have seen, there are PPP over TCP not seen it, in fact, PPP is a serial protocol only, as can be Over Ethernet, Over TCP can also be natural, and the next to give you the last of the Over SSH. (2008-11-13, Unix_Linux, 245KB, 下载12次)
爱立信OSS通过X.25协议与各网元连接类
Ericsson OSS through X.25 protocol to connect with the network element type (2007-12-30, Unix_Linux, 8KB, 下载5次)