Linking two switches via fibre
Our shiny new arts/drama building is (almost...) ready to move in to. We have a chunk of 8-strand pre-terminated fibre cable running underground in a conduit from a cabinet in my office to a cabinet in the new building. The cabinet in my office contains a fibre patch panel and one HP ProCurve 1800-24G switch with two J4858C mini-GBIC adapters fitted. The cabinet in the new building contains another fibre patch panel and a Dell 2748 with four 0U3650 mini-GBIC adapters fitted.
The eight strands of fibre in the pre-terminated fibre cable are all different colours, and each individual strand is attached to its own port on the patch panel in the same order at each end. The first two colours at each end are white and black respectively. The first two ports on the patch panel (same both ends) are then connected via a two-strand patch cable to the mini-GBIC of the switch.
I get no network traffic. No little blinking activity lights for those two ports, nothing. I can log in to the web-based management console for the HP ProCurve and see that it seems to recognise that ports 23 and 24 ("dual personality" ports) have GBIC adapters in them as they are listed as type "1000BASE-SX", but other than that there seems to be no indication that either switch is doing anything.
What have I missed? Is there some chicken-waving exercise that I need to do before a switch agrees to route traffic over fibre? Have I connected the fibre up wrongly in some way (although surely I would have noticed if a patch lead on GBIC adapter had the wrong connector?)? Have I used the wrong diameter of patch lead, and does that make all that much difference? Is my fibre bust? How do I find out if it is?