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Re: The Article - in readable format So, even with Docsis 3, why are they promising 5mb/subscriber per 300 people, when they only have 120MB total? That does not make sense. Provide 1mb/subscriber, and with 300 people, that should be good enough. I mean, if you only have 1mb/sec, then you sure as hell can't use 4GB/uploads in 4 hours. Why don't they just sell what they can provide.
Do the math.
Assume 20% of their subscribers use P2P. Out of 300 houses, that would be 60 users. If every user does 5mb/sec, it would take a total of 300mb/sec to just service those users. And they already admitted they only have 120mb/sec. Solution: SELL 1mb/sec upstream! Then, those 60 users can only use 60mb/sec, and that still leaves 60mb/sec for the other 80%. Gee, very simple solution.
Oh, wait.. hmm.. Verizon provides me with 15mb/sec upstream. And they have 200 people per node, but an upstream capacticy of 1.2GB/sec. That means that 40 people at 15mb/sec use a total of 600mb/sec, and that leaves 600mb/sec for the remaining 160 people. Hmm.. which one is a better system?
Which would you choose, if the price was the same. 1mb/sec upload or 15mb/sec upload. Not a very hard decision there. 30mb/sec down or 6mb/sec down?
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The happiest countries are the most secular. The struggle AGAINST corporations is the struggle FOR humanity! | |
 espaethDigital PlumberPremium,MVM
join:2001-04-21
Minneapolis, MN
kudos:2
 ·Clear Wireless
| said by karlmarx:So, even with Docsis 3, why are they promising 5mb/subscriber per 300 people, when they only have 120MB total? Outside of testing with Spirent, Smartbits, Ixia, or similar there is no real-world IP network scenario where all ports of attachment are maxed out.
The only time we've ever seen anything close to that on the Internet is when SQL Slammer first hit.
Your density estimate is also off a bit. For example, for Comcast they have published infrastructure stats here, they have an average of 468 homes passed per node. That's houses capable of getting a signal, but doesn't reflect actual subscriber density. They also say they have 102k HFC nodes. Last year Comcast had about 13.5 million HSI subscribers, so 13.5 mil / 102k nodes = ~132 HSI subs per node. | |
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