对于TCP协议和UDP协议，大家应该都有所耳闻。TCP协议和UDP协议都工作在传输层，他们的目标都是在应用之间传输数据。我们常用的网络通信，比如浏览网页，查看邮件，电话通信等，都是通过这两种协议来进行数据传输的。 这两种协议有什么区别呢？他们又是 ...

（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 ...

All too often we shy away from the depths of IP protocols, leaving the application vendors such as Microsoft; Wowza Media Systems, LLC; RealNetworks, Inc.; Adobe Systems, Inc.; and others with more ...

There are two main data transfer protocols -- Transmission Control Protocol (TCP) and User Datagram Protocol (UDP). If you only had to know one fact about each protocol, it's that TCP is slower ...

In the last newsletter we started discussing the protocol stack used for transporting voice over IP. Today we’ll move to the control for those conversations. By the way, before we get all those e-mail ...

Security practitioners for decades have advised people to limit DNS queries against their DNS servers to only use UDP port 53. The reality is that DNS queries can also use TCP port 53 if UDP port 53 ...