The IP layer, in turn, provides services used by the Internet Control Message Protocol (ICMP) and Transmission Control Protocol (TCP).

反过来，ip层又提供由网际控制报文协议(ICMP)和传输控制协议(TCP)使用的服务。

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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。

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Recall that the Internet protocol (IP) is the core network layer protocol that sits below the transport protocol (most commonly the Transmission Control protocol, or TCP).

回想一下，Internet Protocol (IP)是传输协议(通常称为传输控制协议或TCP)下面的核心网络层协议。

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