HardenedBSD/sys/modules/cc/cc_chd/Makefile

# $FreeBSD$

.include <bsd.own.mk>

.PATH: ${.CURDIR}/../../../netinet/cc
KMOD=	cc_chd
SRCS=	cc_chd.c

.include <bsd.kmod.mk>
Import an implementation of the CAIA-Hamilton-Delay (CHD) congestion control algorithm described in the paper "Improved coexistence and loss tolerance for delay based TCP congestion control" by Hayes and Armitage. It is implemented as a kernel module compatible with the recently committed modular congestion control framework. CHD enhances the approach taken by the Hamilton-Delay (HD) algorithm to provide tolerance to non-congestion related packet loss and improvements to coexistence with loss-based congestion control algorithms. A key idea in improving coexistence with loss-based congestion control algorithms is the use of a shadow window, which attempts to track how NewReno's congestion window (cwnd) would evolve. At the next packet loss congestion event, CHD uses the shadow window to correct cwnd in a way that reduces the amount of unfairness CHD experiences when competing with loss-based algorithms. In collaboration with: David Hayes <dahayes at swin edu au> and Grenville Armitage <garmitage at swin edu au> Sponsored by: FreeBSD Foundation Reviewed by: bz and others along the way MFC after: 3 months 2011-02-01 08:05:14 +01:00			`# $FreeBSD$`

			`.include <bsd.own.mk>`

			`.PATH: ${.CURDIR}/../../../netinet/cc`
			`KMOD= cc_chd`
			`SRCS= cc_chd.c`

			`.include <bsd.kmod.mk>`