On Wed, 6 Oct 1999, Steve Dodd wrote:
|I'm stuck. FTP downloads over my PPP link are fine, they pretty much saturate
|the connection when the remote host can send that fast. Uploads are a different
|matter: regardless of the remote host I'm uploading to, the xfer rate withers
|away to sod-all and a huge gob of data remains resolutely stuck in the
Here is a third-hand suggestion that popped up in a reply to a similar
problem on comp.os.linux.networking:
# RFC 1323 "TCP Extensions for High Performance"
echo -n 0 > /proc/sys/net/ipv4/tcp_window_scaling
echo -n 0 > /proc/sys/net/ipv4/tcp_timestamps
# RFC 2018
echo -n 0 > /proc/sys/net/ipv4/tcp_sack
It turns off some "bandwidth*delay product" optimizations. We'd be
interested in whether it works for you or not. Yes, I noted that you've
already tried turning off tcp_timestamps but perhaps one of the others will
make a difference.
---
Clifford Kite Not a guru. (tm)
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