Messages in this thread | | | Date | Wed, 6 Oct 1999 17:21:09 -0500 (CDT) | From | Clifford Kite <> | Subject | Re: [2.2.{12,13p15}] PPP uploads fizzle out and die (tcpdump info incl.) |
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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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