🚀 go-pugleaf

I will soon be trying to connect 2 cisco routers via FDDI.  This is our first
dabbling in FDDI, and the circumstances are less than ideal.  I suspect that my
questions have more to do with FDDI than with cisco, but I wanted to run this
by the cisco gurus too.

One twist is that the fiber is single-mode, while almost all of the other fiber
on campus is multi.  I ordered the correct appliques for the ciscos, and we can
probably deal with terminating the fiber.  Are there any particular things to
watch for when dealing with single-mode fiber?

The bigger twist is that we only have 2 strands of fiber to play with, so I'm
hoping to construct a degenerate ring of one segment.  I'll connect the A port
of one router to the B port of the other router.  Will both routers reliably
and consistently wrap the ring, thus creating a degenerate but functional
point-to-point ring?  I'm at a bit of a loss as to what do with the other 2
ports.  Can I just leave them disconnected, or should I loop them back somehow?

Any insights from those with FDDI experience would be appreciated.

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Jay Ford, Weeg Computing Center, University of Iowa, Iowa City, IA 52242
jay-ford@uiowa.edu (or jnford@handlebar.weeg.uiowa.edu), 319-335-5555