[c-nsp] Network Analyser with n-way support
Thomas Kernen
thomas at ip-man.net
Fri Jan 14 08:00:05 EST 2005
>> Currently debugging an issue with autonegociation (n-way) between 2
>> network devices for which it appears that neither vendor can solve
>> the
>> issue directly. We are now trying to locate an analyser that will
>> allow
>> us to sniff the n-way negociation from both devices but without the
>> ports on the analyser doing their own negociation with the end
>> devices,
>> so basically I'm looking for a "pass through" analyser.
>
> One option could be Tektronix 6000, I recall seeing somewhere a module
> for
> protocol intelligence, but that might not be the right solution, it is
> a
> perfect tool for messing with PHYs, but too dumb for anything above. I
> would suggest taking two ordinary ethernet interfaces for PC and tap
> their
> RX pairs onto the line between your devices. I use Intel 545s in this
> way
> for testing some devices under development, with analyser host running
> Linux with slightly modified driver for reporting what is happening on
> the
> line.
>
Will look into the Tektronics 6000 thanks, ideally I would like a field
device since we have 600 installed ports that need to be checked so the
Linux with the modified drive may work for the lab but unfortunally I
unlikely to work in our case methinks.
Thomas
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