[33339] in North American Network Operators' Group
Re:
daemon@ATHENA.MIT.EDU (Vadim Antonov)
Tue Jan 9 06:37:32 2001
Date: Tue, 9 Jan 2001 03:32:04 -0800 (PST)
From: Vadim Antonov <avg@kotovnik.com>
To: "Daniel L. Golding" <dan@netrail.net>
Cc: nanog@merit.edu
In-Reply-To: <Pine.BSF.4.21.0101082312430.22774-100000@courier.netrail.net>
Message-ID: <Pine.LNX.4.04.10101090308560.23812-100000@kitty.kotovnik.com>
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Errors-To: owner-nanog-outgoing@merit.edu
You mean you really have any other option when you want to interconnect
few 300 Gbps backbones? :) Both mentioned boxes are in 120Gbps range
fabric capacity-wise. If you think that's enough, i'd like to point out
at the DSL deployment rate. Basing exchange points at something which is
already inadequate is a horrific mistake, IMHO.
Exchange points are major choke points, given that 80% or so of traffic
crosses an IXP or bilaterial private interconnection. Despite the obvious
advantages of the shared IXPs, the private interconnects between large
backbones were a forced solution, purely for capacity reasons.
--vadim
On Mon, 8 Jan 2001, Daniel L. Golding wrote:
> There are a number of boxes that can do this, or are in beta. It would be
> a horrific mistake to base an exchange point of any size around one of
> them. Talk about difficulty troubleshooting, not to mention managing
> the exchange point. Get a Foundry BigIron 4000 or a Riverstone
> SSR. Exchange point in a box, so to say. The Riverstone can support the
> inverse-mux application nicely, on it's own, as can a Foundry, when
> combined with a Tiara box.
>
> Daniel Golding NetRail,Inc.
> "Better to light a candle than to curse the darkness"
>
> On Mon, 8 Jan 2001, Vadim Antonov wrote:
>
> > There's another option for IXP architecture, virtual routers over a
> > scalable fabric. This is the only approach which combines capacity of
> > inverse-multiplexed parallel L1 point-to-point links and flexibility of
> > L2/L3 shared-media IXPs. The box which can do that is in field trials
> > (though i'm not sure the current release of software supports that
> > functionality).
> >
> > --vadim
