North American Network Operators Group

Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical

Re: Why do some ISP's have bandwidth quotas?

  • From: Ron da Silva
  • Date: Fri Oct 05 09:27:22 2007

On 10/5/07 5:28 AM, "[email protected]" <[email protected]> wrote:
>> And before anyone accuses me of sounding overly critical
>> towards the AU ISP's, let me point out that we've dropped the
>> ball in a major way here in the United States, as well.
> We've dropped the ball in any place where the broadband architecture is
> to backhaul IP packets from the site where DSL or cable lines are
> concentrated, into an ISP's PoP. This means that P2P packets between
> users at the same concentration site, are forced to trombone back and
> forth over the same congested circuits. And P2P is the main way to
> reduce the overall load that video places on the Internet.

Michael - I don't think this is the case for most NA cable operators.  P2P
between subscribers in the same general area simply hairpins back over the
HFC from the aggregation hub (location of the CMTS), no unnecessary backhaul
to another distant PoP location.  Now, the rest of the traffic will be
aggregated further up on its way towards upstream peering...but that is a
different traffic flow.


This E-mail and any of its attachments may contain Time Warner
Cable proprietary information, which is privileged, confidential,
or subject to copyright belonging to Time Warner Cable. This E-mail
is intended solely for the use of the individual or entity to which
it is addressed. If you are not the intended recipient of this
E-mail, you are hereby notified that any dissemination,
distribution, copying, or action taken in relation to the contents
of and attachments to this E-mail is strictly prohibited and may be
unlawful. If you have received this E-mail in error, please notify
the sender immediately and permanently delete the original and any
copy of this E-mail and any printout.