nanog mailing list archives

Re: fast ethernet limits


From: "Jorge Hernandez" <jorge () noc unam mx>
Date: Fri, 10 Jan 2003 15:09:16 -0800


Steve,
What type medium are you using? If it is normal Cat5/6 then the
limitation is 100 meters for total distance and as you approach that
limit the signal degrades. That said, 100baseFX can run for 400 meters
due to the fact that it is fiber, both are part of the fast Ethernet
specification though.

And just for the record, 100BaseFX in full-duplex mode can actually run for
2000 meters
with multimode fiber 62.5 micron core, 125 micron outer.

--
Jorge Hernandez
UNAM Network Operations Center
http://www.noc.unam.mx
(+52) 55 5622 8509



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