It USES holddown timers to prevent routing loops - default is 180 seconds.
它使用限制计时器避免路由回圈-预设为180秒。
Suddenly, he stopped and holddown his arms. This happy young man didn't wear underlinen!
突然，国王停住了，垂下了双手，这个幸福的人没有穿衬衣！
In Figure, the holddown timer is set to 180 seconds. Therefore, an update to a route that was down and is now up could stay in the holddown state until the full 180 seconds have passed.
在图中，限制计时器设定为180秒，因此对一个原本中断而现在恢复的路由更新可能停留在限制状态内直到经过180秒。
In Figure, the holddown timer is set to 180 seconds. Therefore, an update to a route that was down and is now up could stay in the holddown state until the full 180 seconds have passed.
在图中，限制计时器设定为180秒，因此对一个原本中断而现在恢复的路由更新可能停留在限制状态内直到经过180秒。
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