[119335] in North American Network Operators' Group
Re: Layer 2 vs. Layer 3 to TOR
daemon@ATHENA.MIT.EDU (gordon b slater)
Sun Nov 15 02:59:48 2009
X-IP-MAIL-FROM: gordslater@ieee.org
From: gordon b slater <gordslater@ieee.org>
To: Tore Anderson <tore@linpro.no>
In-Reply-To: <4AFD1C84.2020408@linpro.no>
Date: Sun, 15 Nov 2009 07:59:04 +0000
Cc: nanog list <nanog@nanog.org>
Reply-To: gordslater@ieee.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
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On Fri, 2009-11-13 at 09:44 +0100, Tore Anderson wrote:
> * Jonathan Lassoff
>=20
> > Are there any applications that absolutely *have* to sit on the same
> > LAN/broadcast domain and can't be configured to use unicast or multicas=
t
> > IP?
>=20
> FCoE comes to mind.
>=20
....and in a similar vein, ATAoE ; either Coraid stuff or the the free
one in the Linux kernel. Its heavily used in some shops that use virtual
farms with SANS as it's cheap/free and works over existing hardware but
only at layer 2.
I even run it at home (!) - and it's a surprisingly easy way to have a
shelf of storage hanging off the back of a server, with 4GB of cache for
each set of 4 disks per box. Stand too close can feel the wind from it,
especially if RAIDed.
Depends if there's much call for VM-ing in your shop in the future?
Gord
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