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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: FDDI or 100Mb Ethernet
Depends on the switch. Some switches, (notably Bay 28115Rs) perform poorly in fast ethernet/full duplex mode whereas they perform like champs in half-duplex mode. What they say they "do", and what they really do well are sometimes not the same thing. -Deepak. On Fri, 6 Feb 1998, Dorn Hetzel wrote: > > I have started to look at "Fast Ethernet" and see "Full-Duplex > Switched Fast Ethernet". I mean, the switch ports are SO cheap, > why do anything less... > > > On Fri, Feb 06, 1998 at 04:17:53PM -0500, Dean Anderson wrote: > > 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. > > > > --Dean > > > > > > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > > Plain Aviation, Inc [email protected] > > LAN/WAN/UNIX/NT/TCPIP http://www.av8.com > > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > > >
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