Mobility Investigate

An Efficient Dynamic Threshold Buffer Allocation Scheme for the Future Internet

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Executive Summary

The current Internet uses a single queue per output port to buffer packets destined for that port. This often causes congestion leading to packet loss and delay. Real-time applications are delay and loss sensitive. There is therefore a need to develop a buffer management system that will effectively accommodate both real-time and non-real-time applications. In this paper, the authors propose a dynamic threshold buffer management scheme. This scheme uses complete sharing with virtual partitioning. Pre-emption is used to minimise congestion. Out of profile high priority packets are dropped during pre-emption period. To add fairness to the scheme, low priority packets are guaranteed a minimum buffer space.

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