 roamer1sticking it out at you
join:2001-03-24
Atlanta, GA | reply to DaneJasper
Re: Physics said by DaneJasper:ADSL is asymetric. You get lots of downstream in ADSL but cannot do a lot of upstream. It's the spec, silly! Similar applies to cable -- besides the fact that modems have to contend for upstream channels, the upstream channels, which are at the very low end of the RF spectrum, tend to be filled with lots of noise, which leads to use of modulation methods that provide more error correction and lower throughput than those used for downstream. The same types of issues exist for most wireless technologies as well; cellular technologies like UMTS and EV-DO, DOCSIS over MMDS, etc. all tend to have significantly higher downstream than upstream.
There is no excuse for upstream capping on the likes of FiOS, especially when it is generally in an ISP's best interest to have upstream and downstream traffic roughly equal.
-SC
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said to me: "it seems like all you ever buy is Abercrombie and cell phones"  |
