On 02.07.2014 22:43, Bill Oliver wrote:
On Wed, 2 Jul 2014, Rick Stevens wrote:
I hit a similar thing on my F19 machine. The fix I had was (as root):
echo "0" >/proc/sys/net/ipv4/tcp_sack
(I did this on the advice of our in-house network guru) I then added
these to the end of my /etc/sysctl.conf file so it gets set on the next
boot as well:
# Speed up FTP uploads...
net.ipv4.tcp_sack = 0
Seems to have solved the problem. It appears that there are some routers
or firewalls or VPNs that screw up the SACK on some transactions. Try
the first thing (the echo command) and see if it helps. If so, then do
the sysctl.conf stuff.
No joy. I have a support call into my virtual machine vendor. I'll see
if they have any words of wisdom.
billo
Which virtual machine vendor?
poma
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