Hardware capture platforms

Paul Jakma paul at clubi.ie
Fri Aug 1 09:53:34 CDT 2008


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 at clubi.ie	paul at jakma.org	Key ID: 64A2FF6A
Fortune:
Anything is possible, unless it's not.




More information about the NANOG mailing list