ICMP is used by IP as well as some higher level protocols, such as Transmission Control protocol (TCP).

icmp由ip和一些更高级别的协议使用，如传输控制协议(TCP)。

youdao

Stream Control Transmission protocol (SCTP) is a new transport layer protocol added to the 2.6 kernel.

流控制传输协议(SCTP)是2.6内核中增加的一个新的传输层协议。

youdao

The two most popular transport layer protocols are the transmission control protocol (TCP) and the user datagram protocol (UDP)

两种最流行的传输层协议是传输控制协议（TCP）和用户数据报协议（UDP）

youdao

Known as TCP, the Transmission Control Protocol is core to the functioning of the the Internet.

FORBES: What Google and Facebook Have in Common With Megaupload

For example, on Monday Google engineers proposed changes to the Transmission Control Protocol in order to make the Web faster.

FORBES: What Google and Facebook Have in Common With Megaupload