[NCLUG] Re: DSL Throttling or General Congestion?

[DJ Eshelman]

Here's some of my research on the topic of Latency:
http://www.networkworld.com/newsletters/frame/2006/0501wan2.html
http://www.edgeblog.net/2007/its-still-the-latency-stupid/
http://slaptijack.com/system-administration/what-is-tcp-window-scaling/
http://www.psc.edu/networking/projects/tcptune/
http://discussion.autodesk.com/thread.jspa?threadID=487772

Of course the professional solutions:
http://www.citrix.com/English/ps2/products/product.asp?contentID=33886&ntref=hp_nav_US
https://www.juniper.net/products_and_services/application_acceleration/wan_acceleration/wx_application_acceleration/index.html
http://www.riverbed.com/index.php?cnt=1
http://www.cisco.com/en/US/prod/collateral/routers/ps5854/prod_qas0900aecd805d22f5.html

This year's Olympics were a good test for Cisco:  
http://www.networkworld.com/newsletters/accel/2008/081108netop1.html?page=1

Anyway, I appreciate the suggestion-
The main problem we're running into with this stuff is keeping files 
synced- scp would tend to overwrite files that maybe shouldn't be 
overwritten and wouldn't do bit-level changes with a specific algorithm 
to determine version-winning (unless I'm mistaken on that??).

But if they're penny-pinching I may suggest this as an alternative; no 
sense in buying a Windows Server for two people in Texas.  Honestly a 
$500 Linux server may do them just as much good but keeping those files 
synced properly will be the big make/break thing.

For the time being, I think I'll stick to the more general looking at 
ways to 'squeeze more' out of existing connections.
There is a project that's not even to Alpha yet that's dealing with 
compressing traffic streams (http://trafficsqueezer.sourceforge.net)- I 
thought it looked promising but I can't deploy anything like that clear 
out in Texas :)  I also don't know how well it'd do with non-leased 
lines (DSL), but it's something I hope that we'll start seeing ISPs deploy.

grant at amadensor.com wrote:
> Is scp any better than CIFS at dealing with this kind of network?
>
>
> If it it, you may be able to set up a local machine in the remote 
> office retrieving the files via SFTPFS in FUSE and then re-export it 
> locally via Samba.  This might be better, then again, it might be worse.
>
>
> It was the only open source solution I could think of fore WAN file 
> sharing for Windows.
>
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