In low-speed network, it is usually adequate to wait for congestion to occur and then react to it by telling the source of packe

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问题 In low-speed network, it is usually adequate to wait for congestion to occur and then react to it by telling the source of packets to slow down. In high-speed networks, this approach often works poorly, because in the(61)between sending the notification and notification arriving at the source, thousands of additional(62)may arrive. In ATM network, a major tool for preventing(63)is(64)control. When a host wants a new virtual(65), it must describe the traffic to be offered and the service expected.

选项 A、interval
B、time
C、slot
D、delay

答案A

解析
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