From: McAuley, Tim (T.McAuley at domain emuse.ie)
Date: Tue 08 May 2001 - 16:32:40 IST
>
> What is the use of the top layer peering at INEX too? Esp. as the
> top-layer, to my knowledge, do not operate any national networks of
> any significance. (maybe their POPs, that's it.).
>
> If you buy bandwidth from the top-layer then you are probably already
> big enough to peer at INEX yourself.
>
(Please forgive me if I am using inaccurate information... I'm just using
there as an example.)
Not necessarily. Take Ocean as an example. I believe they have links with
UUnet for their bandwidth. If a small company has a 256K leased line with
them, there is no much point shipping their traffic, destined for an IOL
customer through England or some other European country. They should use
INEX.
And just because they (the Big Telco) are linked into INEX does not mean
people will be able to use their bandwidth free.
Example:
Small Irish ISP - 10MB link to INEX - 10 MB link to Europe or States
Big Telco - 10MB link to INEX - 100MB link to Europe or States
If a client of the smaller ISP wants to get to a European website, the
smaller ISP will not be allowed (unless they have agreements) to ship the
data through the Big Telco, via INEX. But they will get the advantage of
decreased latency to one of the Big Telco's customers down the road.
Small customers still sometimes have links to the big people. It's a lot
cheaper to link to a local Telco with a 2MB link, than a 2MB link to outside
Ireland!
Tim
> > [1] I've no objections to exporting our traffic, and I'm
> sure that the nice
> > people in other countries don't mind it much either... but
> building the
> > internet is not like building roads in Ireland.. The most
> direct route is
> > normally the best (assuming that the route isn't congested,
> but congestion
> > at this level is a matter for the protocols, not the route
> designers.)
>
> exactly...
>
> imagine:
>
> Murphy Net - peered at INEX. have lines through GlobalFoo.
> RyanCom - peered at INEX. have lines with BigNet.
>
> what would be the point in BigNet and GlobalFoo peering at INEX? it's
> not going reduce their traffic cause the traffic is already going
> over INEX.
>
> The BigTelcos, and many more, are already peering with each other in
> places like LINX and AMS-IX. (Eircom and Via are also AMS-IX peers).
>
> regards,
> --
> Paul Jakma paul at domain clubi.ie paul at domain jakma.org
> PGP5 key: http://www.clubi.ie/jakma/publickey.txt
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