单选题
发布日期:2020-04-13
The tracking return code fails after the SLA operation results in an ICMP echo failure three times.
The tracking return code fails after the SLA operation results in an ICMP echo failure one time.
After the tracking object fails, the tracking o bject moves back to an up state 45 seconds later in all cases.
After moving to a down state, the tracking object moves back to an OK state 45 seconds after the SLA operation moves to an OK state.
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