Louie Tarpo wrote in a message to Mike Bilow:
MB> By the book, you are allowed 90m between your wall jacks, with 
MB> an allowance 5m on each side between the wall jack and the NIC. 
MB> The maximum total length of a passive segment (that is, without 
MB> a repeater) is 100m.
 LT> repeater?  another hub?
An Ethernet concentrator (what you call a "hub") is a multiport repeater.
 
-- Mike
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