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restring

join:2006-09-22
Manchester, NH

Upstream bandwidth

Through this discussion something seems not to have been mentioned - that is BitTorrent and P2P in general easily max-out the upstream bandwidth on a given segment.
When the upstream saturates, the whole segment will slow down; WWW starts becoming World Wide Wait!

I see Comcast sort of stuck between a rock and a hard place;
then too they shouldn't have oversubscribed their upstream bandwidth.

DOCSIS 1 systems have 9 Mbit/sec upstream bandwidth.
If there are more than about 20 uploaders using 300 kbit/sec the segment will degrade.

DOCSIS 2 systems have 27 Mbit/sec - however they're likely to have more users with 768 kbit/sec upstream so upstream congestion is still going to be an issue with a lot of uploaders.

It may be the only other options Comcast and other cable-TV
Internet providers have will be to start imposing upstream allotments or make upstream bandwidth dynamic; that is when the utilization of the upstream channel hits say 80% transmitters start getting throttled .

Jimdish255

join:2007-10-14

said by restring:

It may be the only other options Comcast and other cable-TV
Internet providers have will be to start imposing upstream allotments or make upstream bandwidth dynamic; that is when the utilization of the upstream channel hits say 80% transmitters start getting throttled .
Except that is not what is happening now. As far as we know, Comcast has arbitrarily decided to punish a specific class of user or customer to blanket cut their costs (ie: responsibility) to provide some semblance of the service that they have advertised to get people to sign up.

Is there any evidence that this throttling is being imposed on abusers, or during "busy" periods? Not as far as I can tell. As soon as I open up a program that they don't like, my speeds for everything slow to a crawl. Doesn't matter when or for how long, or how much downloading has to be done. It's just a blacklist that they have imposed and it keeps me from using the service that was advertised and sold to me. As I said previously, want me to pay for my usage, that's OK. Just don't sell me something and then blacklist me for attempting to use it.

Maybe we're suckers, but that doesn't make it right.

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