In datacenters, lossless network is very attractive as it can achieve ultra-low latency. To avoid buffer overflow, PFC-enabled switches need to reserve some buffer as headroom, which is for absorbing in-flight packets during the delay for back-pressure messages to take effect. However, the current static and queue-independent headroom allocation scheme is inherently inefficient in solving this problem. In light of this, we propose Dynamic and Shared Headroom allocation scheme (DSH), which dynamically allocates headroom to congested queues and enables the allocated headroom to be shared among different queues.

@inproceedings{Example, title={Example}, author={Example} booktitle={Example}, year={2025}, organization={IEEE/ACM} }