MacOSX Lion Gigabit ethernet slowness

Here, for my own reference:

kern.ipc.maxsockbuf=8388608
net.inet.tcp.recvspace=4194304
net.inet.tcp.sendspace=4194304
kern.ipc.somaxconn=512
kern.ipc.maxsockets=2048
kern.ipc.nmbclusters=2048
net.inet.tcp.rfc1323=1
net.inet.tcp.win_scale_factor=3
net.inet.tcp.sockthreshold=16
net.inet.tcp.mssdflt=1440
net.inet.tcp.msl=15000
net.inet.tcp.always_keepalive=0
net.inet.tcp.delayed_ack=0
net.inet.tcp.slowstart_flightsize=4
net.inet.tcp.blackhole=2
net.inet.udp.blackhole=1
net.inet.icmp.icmplim=50