[c-nsp] what limits bw on a tcp stream?

[Mike Louis]

Latency limits TCP throughput. I am working with an application now that is maxing out at 4-5Mbps over a link with 80-120 ms latency cross continent. One way to improve throughput is to adjust buffers/window sizes on the sender/receiver machines and/or use a WAN acceleration product like Cisco WAAS.

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From: cisco-nsp-bounces at puck.nether.net [cisco-nsp-bounces at puck.nether.net] On Behalf Of matthew zeier [mrz at velvet.org]
Sent: Friday, November 16, 2007 9:48 AM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] what limits bw on a tcp stream?

I have gear in Amsterdam and in San Jose.  Pushing log files from
Amsterdam to San Jose through rsync seems to top out at 7Mbps even
though the box doing the push is pushing much more out to the Internet.
  If I run several rsync's it goes quicker so I know I have the bandwidth.

What's limiting me?
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