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提高网络服务质量QoS属于应用层的工作。( )
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应该属于网络层

A stream of packets from a source to a destination is called a flow (Clark, 1988). A flow might be all the packets of a connection in a connection-oriented network, or all the packets sent from one process to another process in a connectionless network. The needs of each flow can be characterized by four primary parameters: bandwidth, delay, jitter, and loss. Together, these determine the QoS (Quality of Service) the flow requires.

Computer Networks - Andrew S. Tanenbaum, 5th Edition, Chapter 5 (The Network Layer), Section 5.4 (Quality of Service), p. 404

不过物理层,数据链路层,网络层都用到过qos的相关功能
发表于 2021-03-22 11:38:32 回复(0)