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2.26. The “exponential backoff algorithm” used by CSMA/CD protocol works as each time a network adaptor tries to transmit but fails, it “doubles” the amount of time it waits before trying again. Assume the collision window or slot time of the network is “T”
(a)For the first collision, the waiting time for the node to randomly select is among [__(1)__, __(2)__ ] T times
(b)For the second collision, the waiting time for the node to randomly select is among [__(3)__, __(4)__] T times
(c)For the third collision, the waiting time for the node to randomly select is among [__(5)__, __(6)__] T times
用於CSMA/CD協議中的指數後退演算法運作方式為,每當網路介面卡傳送失敗時,再次嘗試傳送之前的延遲時間上限會加倍。假設衝撞視窗(或訊槽時間)為T.
(a)針對第一次碰撞,節點等待的時間隨機變數的範圍是在 [__(1)__, __(2)__ ] T (每個空格請輸入一整數)
(b)針對第二次碰撞,節點等待的時間隨機變數的範圍是在 [__(3)__, __(4)__ ] T (每個空格請輸入一整數)
(c)針對第三次碰撞,節點等待的時間隨機變數的範圍是在 [__(5)__, __(6)__ ] T (每個空格請輸入一整數)
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