Link-debounce timer

https://www.manualslib.com/manual/546511/Dell-Force10-S4810p.html?page=501

Delay the notification of interface up/down events. 主要是防止快速而重复的interface flaps，对上层协议的影响。时间是milisec. 

Configuration:

bn303.spine.host3(s1)(config-if-Et3/1/1)#link-debounce time 1000 1000
bn303.spine.host3(s1)(config-if-Et3/1/1)#int e3/1/1
bn303.spine.host3(s1)(config-if-Et3/1/1)#link-debounce time 1000 1000
bn303.spine.host3(s1)(config-if-Et3/1/1)#