(off-topic) SGMII point-to-point, or 1000baseX on copper

[Matthias Drochner <M.Drochner%fz-juelich.de@localhost>]

This is not directly NetBSD related, but perhaps someone around here
can give me some advise.

For some hardware project, I need to connect FPGAs via gigabit
ethernet to a switch chip which connects to the outside world.
Due to limited pins on the backplane connector, GMII or RGMII
wouldn't work, so what is left are SGMII and the 1000baseX
transceiver interface.

The latter looks simpler -- can someone tell whether serialized
gigabit ethernet, driven by (to be determined, likely vitesse)
phy chips works over some ten inches of PCB?

Or alternatively, do you know some PHY or switch chip which
implements something like reverse-SGMII?

Or even better ideas how to implement that?

thanks
Matthias




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