What occurs on a Frame Relay network when the CIR is exceeded?

admin2019-04-08  32

问题 What occurs on a Frame Relay network when the CIR is exceeded?

选项 A、        All TCP traffic is marked discard eligible.
B、        All UDP traffic is marked discard eligible and a BECN is sent.
C、        All TCP traffic is marked discard eligible and a BECN is sent.
D、        All traffic exceeding the CIR is marked discard eligible.

答案D

解析 当在一个帧中继网络中,CIR过载会发生什么?
考点分析:这道题考的是帧中继。CIR是在帧中继技术中,是用户向帧中继业务运营商申请的是承诺的信息速率。当信息速率突发量大于Bc+Be时,网络将丢弃帧。答案是D。
D:所有超过的流量都丢弃。
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