定義或公式:
Maximum RTT : Maximum of all max RTTs
Minimum RTT : Minimum of all min RTTs
Average RTT : sumrtt /numcomplete
*註
1. sumrtt : Sum of all RTTs
2. numcomplete : Number of total RTT completions
3. Sample Interval:每10秒送出1個packets(64byte/packet),用ping得出結果。