nanog mailing list archives
RE: fast ethernet limits
From: "Kristian P. Jackson" <kahuna () krisjackson net>
Date: Fri, 10 Jan 2003 15:24:21 -0500
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. A repeater would boost signal, but perhaps a switch in there might not be a bad idea, segment the 27 floors into VLANs, reduce overall traffic traveling between floors and eliminate the 27 floor run. Hope this helps, Kristian P. Jackson -----Original Message----- From: owner-nanog () merit edu [mailto:owner-nanog () merit edu] On Behalf Of Steve Rude Sent: Friday, January 10, 2003 3:01 PM To: nanog () merit edu Subject: fast ethernet limits Hi NANOG, Could someone please help me with a fast ethernet problem I am having. We have a POP in a 27 floor building, and have a rj45 run from the the bottom of the building (in the telco room) to the top of the building. We have cisco switches on either end and we are seeing about 5-20% packet loss on the trunk. Are we running into a distance limitation of fast ethernet, or are we suffering from another problem? I read that 328 feet is the limitation of fast ethernet. Is there anything short of getting a repeater for the cable run that I can do to boost the signal? TIA for your help. Ciao. Steve Rude
Current thread:
- Re: fast ethernet limits, (continued)
- Re: fast ethernet limits Valdis . Kletnieks (Jan 10)
- Crap grounds... blitz (Jan 11)
- Re: fast ethernet limits Måns Nilsson (Jan 12)
- Message not available
- Re: fast ethernet limits Jim Segrave (Jan 13)
- Message not available
- Re: fast ethernet limits blitz (Jan 13)
- Re: fast ethernet limits Måns Nilsson (Jan 13)
- Re: fast ethernet limits Stephen J. Wilcox (Jan 14)
- Re: fast ethernet limits Måns Nilsson (Jan 14)
- RE: fast ethernet limits ed (Jan 10)
- RE: fast ethernet limits Robert A. Hayden (Jan 10)
- Re: fast ethernet limits Jorge Hernandez (Jan 10)
- Re: fast ethernet limits Brian (Jan 10)
- Re: fast ethernet limits Mikael Abrahamsson (Jan 11)