Hierarchical fair-service curve

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The hierarchical fair-service curve (HFSC) is a network scheduling algorithm for a network scheduler proposed by Ion Stoica, Hui Zhang and T. S. Eugene from Carnegie Mellon University at SIGCOMM 1997[1]

It is based on a QoS and CBQ. An implementation of HFSC is available in all operating systems based on the Linux kernel,[2] such as e.g. OpenWrt,[3] and also in DD-WRT, NetBSD 5.0, FreeBSD 8.0 and OpenBSD 4.6.


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