On Wed, 17 Oct 2007, Paul Jakma wrote: > Firmware 'near' the NIC (I've never seen an explanation of the exact > mechanism) interposes itself between hardware and OS and 'hijacks' > traffic to that port. It never makes it to the OS.
Ah, googling suggests that when this "Not quite a NIC" has this management-port-hijack feature enabled, that it would limit the NIC to 100Mb/s mode (due to firmware implementation not supporting GigE somehow). Is this performance limitation still present? Another question I would have: If the management-hijack is active and the OS requests promiscious receive, does the OS get the management-port traffic? I.e. I suspect this feature *must* either break AMT or else network-observability through promiscious-mode operation, is this the case? If not, I'd be curious as to how it's done. regards, -- Paul Jakma, Solaris Networking Sun Microsystems, Scotland http://opensolaris.org/os/project/quagga tel: EMEA x73150 / +44 15066 73150
