[100004] in North American Network Operators' Group
Re: Why do some ISP's have bandwidth quotas?
daemon@ATHENA.MIT.EDU (Brandon Galbraith)
Fri Oct 12 14:33:40 2007
Date: Fri, 12 Oct 2007 13:32:37 -0500
From: "Brandon Galbraith" <brandon.galbraith@gmail.com>
To: "Tony Finch" <dot@dotat.at>
Cc: "Mikael Abrahamsson" <swmike@swm.pp.se>, nanog <nanog@merit.edu>
In-Reply-To: <Pine.LNX.4.64.0710121903190.28841@hermes-2.csi.cam.ac.uk>
Errors-To: owner-nanog@merit.edu
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On 10/12/07, Tony Finch <dot@dotat.at> wrote:
>
>
> On Thu, 11 Oct 2007, Mikael Abrahamsson wrote:
> >
> > If it's multicast TV I don't see the problem, it doesn't increase your
> > backbone traffic linearly with the number of people doing it.
>
> However if you have UK-style ADSL ppp backhaul then multicast doesn't
> help.
>
> Tony.
Not to drag this too far off topic, but have serious studies been done
looking at moving switching fabric closer to the DSLAMs (versus doing
everything PPPoE)? I know this sort of goes opposite of how ILECs are setup
to dish out DSL, but as more traffic is being pushed user to user, it may
make economic/technical sense.
-brandon
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On 10/12/07, <b class="gmail_sendername">Tony Finch</b> <<a href="mailto:dot@dotat.at">dot@dotat.at</a>> wrote:<div><span class="gmail_quote"></span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>On Thu, 11 Oct 2007, Mikael Abrahamsson wrote:<br>><br>> If it's multicast TV I don't see the problem, it doesn't increase your<br>> backbone traffic linearly with the number of people doing it.<br>
<br>However if you have UK-style ADSL ppp backhaul then multicast doesn't<br>help.<br><br>Tony.</blockquote><div><br>Not to drag this too far off topic, but have serious studies been done looking at moving switching fabric closer to the DSLAMs (versus doing everything PPPoE)? I know this sort of goes opposite of how ILECs are setup to dish out DSL, but as more traffic is being pushed user to user, it may make economic/technical sense.
<br><br>-brandon<br> </div><br></div><br>
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