North American Network Operators Group

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Re: FDDI or 100Mb Ethernet

  • From: Dean Anderson
  • Date: Fri Feb 06 16:43:46 1998

At 2:35 PM -0500 2/6/98, Deepak Jain wrote:
>FDDI can run full duplex, as for the other two things its a matter of
>opinion & conditions.  (One I agree with, but still opinion).

For desktops, I agree completely that fast ethernet is the way to go.  Fast
ether hubs are cheaper and easier to wire than cddi hubs (no cross over
cables required).

For a backbone, though, I would point out that FDDI is a token ring
protocol, so performance is always predictable. Ethernet, and fast ethernet
have performance knees.  (Actually, I'm assuming Fast Ethernet will have a
knee at around 70% utilization. I haven't tested that it really does).
Also, both Fiber and Copper can be implemented with dual attached rings
which might be an advantage for a backbone link.


           Plain Aviation, Inc                  [email protected]