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

2007-11-22 Thread A . L . M . Buxey
Hi, Wasn't running over ssh though. The internal buffers on off-the-shelf openssh break performance pretty seriously for long fat pipes (unless the hpn-ssh mods have been integrated back into production openssh, which I'd really love to hear). no, in general they havent. which is a pity and

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

2007-11-21 Thread Robert E. Seastrom
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 Is rsync using ssh to move the data? ssh has its own windowing issues. There's a high perf fix for that which you should be able to find via google.

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

2007-11-21 Thread Robert E. Seastrom
Peter Lothberg [EMAIL PROTECTED] writes: 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 Is rsync using ssh to move the data? ssh has its own windowing issues. There's a high perf fix for that

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

2007-11-21 Thread Peter Lothberg
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 Is rsync using ssh to move the data? ssh has its own windowing issues. There's a high perf fix for that which you should be able to find via google.

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

2007-11-17 Thread Hank Nussbacher
On Fri, 16 Nov 2007, Mark Boolootian wrote: 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

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

2007-11-16 Thread Adrian Chadd
On Fri, Nov 16, 2007, matthew zeier wrote: 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

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

2007-11-16 Thread Mike Louis
WAAS. From: [EMAIL PROTECTED] [EMAIL PROTECTED] On Behalf Of matthew zeier [EMAIL PROTECTED] Sent: Friday, November 16, 2007 9:48 AM To: cisco-nsp@puck.nether.net Subject: [c-nsp] what limits bw on a tcp stream? I have gear in Amsterdam and in San Jose

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

2007-11-16 Thread Mark Boolootian
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

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

2007-11-16 Thread matthew zeier
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

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

2007-11-16 Thread Phil Bedard
Welcome to the limitations of TCP using standard window sizes. There is tons of documentation out on the net on how to tweak TCP connections to maximize throughput. WAN accel appliances are very good at doing this as well, if you don't want to mess around with tweaking individual