Some properties of variable length packet shapers
IEEE/ACM Transactions on Networking (TON)
Traffic shaping for an FPGA based SDRAM controller with complex QoS requirements
Proceedings of the 42nd annual Design Automation Conference
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Traffic shaping in high speed networks, including VDSL networks, occurs when congestion builds up in the outgoing VDSL network. Shaping mechanisms want smooth traffic. We used a leaky bucket too achieve traffic shaping. But leaky buckets still have a lot of non-conforming frames. However, as one way to solving this problem, we purpose a double-leaky bucket as the traffic shaping mechanism that has proven to be efficient in coping with conflicting requirements, that is, low non-conforming frames. We evaluate and compare the performance of a double-leaky bucket in traffic shaping mechanisms (DLB) and leaky buckets (LB). The performance of the double-leaky bucket was investigated through fluctuations in telecommunication traffic streams (burst/silent type). Simulation results showed that on VDSL frames, a double-leaky bucket helps improve the performance in a traffic-shaping system much better than conventional, leaky-bucket systems by about 30%, in terms of conforming and non-conforming frames. Once various types of burst/silence traffic are generated, the leaky bucket is much better than other schemes by about 29 % in terms of utilization.