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单项选择题设置作为主接口的逻辑通道呼叫8次仍未成功为切换到备份接口,每隔60秒检查一次主逻辑通道是否恢复Up,这样的配置应为()

A、backup state-down 8 state-up 60

B、backup state-down 60;backup state-up 8

C、backup state-down 8;backup state-up 60

D、backup state-down 8;backup state-up time 60

  • C
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