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Official Bay Area slowdown thread »
« [Speed Problem] Need some help with new SoCal speed problem  
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deblin
Dark Side of the Moon
Premium,MVM
join:2001-09-01
Middletown, DE

reply to bbiandov
Re: Does upload screw the download speed on Cable as in DSL

Yes, it does. It is indeed because it is a half duplex connection. If you are uploading at full tilt, then downloading slows down to approximately the same speed you are uploading, since the ACK packets sent for downloads cannot get back as fast, since they are competing for upstream bandwidth with whatever you are doing that's saturating the upload.

There are some commercial routers with so-called QoS or packet queuing which can alleviate the problem (though you won't get full upstream and downstream at the same time). I believe the WRT54G/GS series of Linksys modems either have this ability or you can add this with open-source firmware such as HyperWRT or OpenWRT, etc.
--
"Talk is cheap because the supply is greater than the demand" - Shelby Friedman
Forums » US Telco Support » AT&T » AT&T WestOfficial Bay Area slowdown thread »
« [Speed Problem] Need some help with new SoCal speed problem  


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