（1）字节和数字的存储顺序是从右到左，依次是从低位到高位，而网络存储顺序是从左到右，依次从低位到高位。 （2）版本：占第一个字节的高四位。头长度：占第一个字节的低四位。 （3）服务类型：前3位为优先字段权，现在已经被忽略。接着4位用来表示 ...

I'm interested in learning more about TCP/IP. I don't want anything <I>too</I> technical but I'd like to learn about the various parts of a packet and how to read it. I'd also like to see packets ...

SANTA CRUZ, Calif. — As a way of spreading the word about its classes and workshops, Si-Concepts is offering a free Vera TCP/IP packet generator with a built-in functional coverage tracker. The ...

Linux操作系统总体上由Linux内核和GNU系统构成，具体来讲由4个主要部分构成，即Linux内核、Shell、文件系统和应用程序。内核、Shell和文件系统构成了操作系统的基本结构，使得用户可以运行程序、管理文件并使用系统。 内核是操作系统的核心，具有很多最基本 ...

Take advantage of TCP/IP options to optimize data transmission Your email has been sent By Alex Kuznetsov, Alex Plant, and Alexander Tormasov Last time, we explained how the TCP_CORK option can ...

2019 年 9 月，6 名中国工程师走进联合国机构国际电信联盟（ITU）的会议室，向来自 40 多个国家的代表提出了一个「激进」的互联网协议提案：「New IP」。 这个新提案，由华为联合中国联通、中国电信、中国工信部（MIIT）策划，目的是替代现行的 TCP/IP 协议。

The purpose of the network layer is to help route messages between different local networks. Central to this layer is the concept of exclusive network addresses, where every terminal connected to the ...

Most network people understand the terrible effect delay can have on TCP sessions. TCP must pause data transfers while waiting for ACKs. The more network delay there is, the longer this pause will be.

When I use the netstat command to look at the open TCP/IP connections on my PC, there are connections that should be closed that are in the TIME_WAIT state. What is this, and why do connections stay ...

Modbus TCP connections pose many benefits over RTU RS-485 alternatives. Image: PV Tech. In the last couple of years, the market has seen a few commercial and industrial (C&I) inverter models and ...