Date: Mon, 13 Feb 2012 02:50:13 +0100 From: Peter Olsson <pol@leissner.se> To: freebsd-stable@freebsd.org Subject: Tuning needed for slow RDP FreeBSD 9 -> Win 2008 R2 Message-ID: <20120213015013.GA71062@pol-server.leissner.se>
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Desktop: FreeBSD 9.0-RELEASE amd64, generic kernel, running Openbox. My WAN is about 1.2 Mbps, and I try to run RDP to windows servers beyond my WAN. RDP to a Windows Server 2003 SP2 is fast and works without problems. RDP to a Windows Server 2008 R2 is very slow, and sometimes just disconnects. I tried changing a couple of net.inet.tcp sysctl: net.inet.tcp.recvbuf_max=10485760 net.inet.tcp.recvbuf_inc=65535 net.inet.tcp.sendbuf_max=10485760 net.inet.tcp.sendbuf_inc=65535 net.inet.tcp.recvbuf_auto=0 net.inet.tcp.sendbuf_auto=0 net.inet.tcp.sendspace=65536 net.inet.tcp.ecn.enable=1 net.inet.tcp.delayed_ack=0 net.inet.tcp.tso=0 net.inet.tcp.sack.enable=0 net.inet.tcp.path_mtu_discovery=0 Some in combination with others, and some by themselves. I also tried net.link.ifqmaxlen=1024 in /boot/loader.conf. Nothing has helped, do you have any ideas what I should tune? Thanks! -- Peter Olsson pol@leissner.se
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