SlashDot: "Comcast Gunning for NAT Users"

Stephen Sprunk ssprunk at
Thu Jan 31 21:59:18 UTC 2002

Thus spake "Stephen Griffin" <stephen.griffin at>
> The point is that customers don't pay for 100% of the available
> bandwidth.  Customers couldn't afford to pay for guaranteed 100%
> BW to all desinations all the time.

Customers are paying for whatever service you have sold them, period.  If
you sell them 'unlimited service', you must deliver them 'unlimited service'
or face fraud, false advertising, breach of contract, etc.

> Hence, companies determine how much BW a typical user
> is likely to use, build to that, and charge the customers based on how
> much it cost to provide it. When folks use the service atypically, they
> using resources they didn't pay for.

No, they're using resources they paid for but you assumed they'd not use.
If you can't tell the difference, ask your lawyer.

> If you think otherwise, build a company that doesn't aggregate flows, and
> gives every customer (simultaneous) guaranteed MAX BW 24x7 to every
> destination within their network and at least the first-hop into
> networks.

No, you state in the Terms of Service exactly what you intend to deliver.
If you can't provide unlimited service, don't offer it.  If you intend to
provide a "reasonable attempt to deliver all acceptable traffic," or
something similar, that's a totally different matter.


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