Both boxes and fiber NICs work fine under Solaris 9 using Syskonnect's proprietary skge driver and a short cross-over fiber patch. So it is definitely not an issue with with the hardware setup, but with OpenBSD.
I'll have the fiber NICs for another 10 days before I'll deploy them in a customer's setup. Until then, I would be happy to apply any diffs and retest. Thanks, Rolf