queue n. 1.發(fā)辮,辮子。 2.〔英國〕(順序等車、購物的)行列,長隊;車隊。 form a queue 排隊。 in a queue 排成一行。 jump the queue 不按次序排隊;企圖獲得優(yōu)惠待遇。 vt. 把(頭發(fā))梳成辮子。 vi. 〔英國〕排(成)隊,排隊等候 (on; up)。 queue up at a bus stop 在公共汽車站排隊。
overflow vt. (-flowed, -flown; -flowing) 使溢出,使泛濫,使?jié)q滿;淹沒;人滿得走不進(房間等)。 The river overflowed its banks. 河水漫出堤岸。 The river overflowed several farms. 河水淹沒了幾個農(nóng)場。 The goods overflowed the warehouse. 貨物多得倉庫堆不下了。 vi. 溢流,泛濫,漫出;滿,充滿;洋溢;(資源等)過剩。 a man overflowing with sympathy 充滿同情心的人。 a land overflowing with resources of every kind 各種資源都很豐富的國家。 overflow with 充溢,充滿。 n. 1.泛濫,溢流。 2.外溢,充溢,過多,過剩;超出額;溢出物。 3.溢洪道,排水口。 an overflow gate 溢水口。 an overflow of population 人口過剩。 adj. 溢出的;充滿的(=overflowing)。
The essence of aqm is to detect the incipient congestion before queue overflow . when congestion has been detected , packets would be dropped or be marked ( ecn ) with a probability to send congestion notification to the sources Aqm的本質(zhì)就是在隊列溢出之前檢測出早期的擁塞,并且以一定的概率丟棄或者標(biāo)記( ecn )數(shù)據(jù)包,從而向源端發(fā)出擁塞指示,以緩解網(wǎng)絡(luò)擁塞。
When congestion occurs , red randomly select sources to notify congestion before queue overflow and once tcp sources receive the notification it will reduce the congestion window to decrease the packet sending rate , and therefore , mitigate the network congestion Red的基本思想是路由器通過監(jiān)控隊列的平均長度來探測擁塞。一旦發(fā)現(xiàn)擁塞逼近,就隨機地選擇源端來通知擁塞,使他們在隊列溢出導(dǎo)致丟包之前減小擁塞窗口,降低發(fā)送數(shù)據(jù)速度。
Because internet is based on the bandwidth statistical multiplexing principle so there are lots of active flows competing limited bandwidth resource in a link . when network congestion occurs aqm must send congestion notification to adequate sources to reduce the traffic load and avoid queue overflow 由于互聯(lián)網(wǎng)是基于帶寬統(tǒng)計復(fù)用的,一條鏈路上有很多活躍流( activeflows )在競爭有限的帶寬資源,因此,進行擁塞通知時應(yīng)充分考慮到瓶頸鏈路上流的數(shù)量,而red算法并沒有考慮到這一點。