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单选题 网络技术
2017-03-08

加快Catalyst 3548发生直接链路失效时的收敛速度,正确配置生成树可选功能的命令是(    )。

A.spanning-tree backbonefast
B.spanning-tree portfast default
C.spanning-tree uplinkfast max-update-rate 32000
D.set spantree uplinkfast enable rate 40

参考答案

C

答案解析

配置uplinkfast的命令格式是“spanning-tree uplinkfast max-update-rate<0-32000><cr>”,其中“max-update-rate”的值是0~32000,单位是packet/s。因此C选项正确。

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