
TCP Traffic Behavior in a Tail-Drop Scenario 129
TCP Traffic Behavior in a Tail-Drop Scenario
Traditionally, packets arriving at the queue when the queue reaches its maximum queue
length are dropped. This behavior continues until the queue decreases because of a packet
transmission. This queue management technique is called tail-drop
2
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Because packet drop signals congestion to a TCP source, the tail-drop mechanism signals
congestion only when the queue is completely full. A packet drop causes a TCP source to
drop its window size to one segment and enter the slow start mode, which drastically slows
down the traffic from the source.
Because many thousands ...