It is a standard protocol in the Internet protocol suite now.

这是目前因特网上使用的一个标准协议。

youdao

The Internet protocol suite is split into several layers; each layer provides specific functionality as shown in Figure 1.

Internet协议套件被划分成几层；每层都提供特定功能，如图1所示。

youdao

It is used by Transport Layer protocols of the Internet protocol Suite, such as Transmission Control protocol (TCP) and User Datagram protocol (UDP).

端口被用于互联网协议集中的传输层协议，就像传输控制协议(TCP)和用户数据报协议(udp)。

youdao

The Internet protocol suite has become the de facto standard for global Internet services and consumers, but it also serves as a near ubiquitous substrate for running critical network infrastructure and applications.

FORBES: The Security Paradox Of IPv6; Shoring Up The Holes