leaky bucket

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leaky bucket

A technique used in ATM networks at the switch level that applies a sustained cell flow rate to bursty traffic. Incoming data flows into a buffer (the "bucket"), then "leaks" out at a steady rate, which is designated as constant bit rate (CBR) traffic. In the event the in-flow exceeds the negotiated rate for a certain time, the buffer will overflow. At that point, the switch examines the Cell Loss Priority (CLP) bit in each cell, and low-priority cells are discarded and retransmitted by the originating device. See leaky bucket counter.
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0 compliant Task offloading for IP, TCP and UDP checksums Ingress traffic shaping based on leaky bucket algorithm
For each subclass, CBQ uses the leaky bucket algorithm.
The most common are the Token Bucket and Leaky Bucket algorithms.