[106531] in North American Network Operators' Group
Re: Hardware capture platforms
daemon@ATHENA.MIT.EDU (Paul Jakma)
Mon Aug 4 16:06:13 2008
Date: Fri, 1 Aug 2008 15:53:34 +0100 (BST)
From: Paul Jakma <paul@clubi.ie>
To: Jon Kibler <Jon.Kibler@aset.com>
In-Reply-To: <alpine.LFD.1.10.0808011541240.4279@localhost.localdomain>
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Cc: nanog@merit.edu
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On Fri, 1 Aug 2008, Paul Jakma wrote:
> GigE is PtP at the physical-layer by the IEEE 802.3ad specification. It's
Gah, I meant 802.3ab, of course.
> just not possible to have a dumb, GigE hub. You have to have a switch that
> can be told to L2-forward everything to one or more ports (e.g. through a
> port-mirroring feature, or by disabling MAC learning).
>
> Also, though probably not terribly relevant, various switches have various
> bugs/malfeatures that cause them to consume certain kinds of frames rather
> than forward them (e.g. consuming all or certain kinds of ISO frames).
regards,
--
Paul Jakma paul@clubi.ie paul@jakma.org Key ID: 64A2FF6A
Fortune:
Anything is possible, unless it's not.
