[nsp] 100Mb Ethernet Design Rules - Propagation delay

Mikael Abrahamsson swmike at swm.pp.se
Fri Jun 4 08:55:51 EDT 2004


On Fri, 4 Jun 2004, Joe Shen wrote:

> Is there any contraint on distance if fiber optic is used between two
> 100Mbps ethernet port?

It depends on if you're running full or half duplex. If you're running 
full duplex then there is just the limitation of attenuation, if you're 
running half duplex then the limitation is propagation delay, typically 
500-2000 meters.

But then again, running half duplex over fiber links is silly.
 
-- 
Mikael Abrahamsson    email: swmike at swm.pp.se



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