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 funchordsHelloPremium,MVM
join:2001-03-11
Yarmouth Port, MA
kudos:5 | reply to Lazlow
Re: ISPs can't win! First off, I think that the ISPs ought to convey this information as advice for users to voluntarily follow, not only for the best experience for all users but also to be good enough for users who just want to "set it and forget it." It's just the right and smart thing to do. And if an ISP gets a speed-demon in its ranks, rather than reading him the riot act, maybe they can call and explain the problem, ask for his cooperation, and point to some ready-made pages that help him understand the problem and configure his system in a better way.
Secondly, I don't know that 90% of (anything) would leave a lot of room for "bursty" responses. At 90%, I think that most commercial gear are dropping packets preemptively anyway, trying to get the speedier senders to slow down (lookup Random Early Drop).
And finally, there is a reality that Cable wasn't built for uploading -- not in DOCSIS 1, 2, OR 3. Although the numbers have gone up through time, the asymmetry really hasn't changed all that much and its Cable's asymmetry -- a conscience design decision wholly within their control -- that is underlying their bandwidth "crisis."
--
Robb Topolski -= funchords.com =- Hillsboro, Oregon
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Lazlow
join:2006-08-07
Saint Louis, MO | The problem with set it and forget it, is that life does not work that way. Take weekdays from 9am-3pm during the school year, most systems are under a fairly light load. Now throw in a snow storm or any other event that closes school. Now suddenly the system is flooded at a time that it would normally be idling along. College usage is the same way. The week of and before exams everyone is hammering the books, the week after everyone is hammering the net. Life just does not follow a schedule.
The 90% was just a first guess. You would need a number that would always allow the stray individual checking the weather radar to be able to do so at a reasonable response time. But that "reserved overhead" (for lack of a better name), should be relatively small. Lets assume Docsis 1.0. If it is set at the 90% level then there would still be 4Mbs (38*.10) of bandwidth left over for our insomniac to check the weather. If he stays up longer (uses more bandwidth) the float would be cranked down (I think I suggested that it would be reevaluated every 15minutes). The 90% and 15 minute numbers would need to be dialed in to determine what fit the best.
I do not think that asymmetry is the source of the bandwidth crisis (I do not think there is a bandwidth crisis to start with). Most (certainly not all) people are more concerned with download speed anyway. While having no upload capacity to ask for the next whatever can be an issue it is a relatively rare thing. | |
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