> root. Historically, I am not sure why it's 7, but Ethernet 
> has a base hop
> "limit" of 4 switches (5-4-3 rule), so it doesn't really 

        As far as I remember, this is not true. 5-4-3 applies only to
repeaters/hubs - not bridges/switches. R/H amplify received signal, while
B/S regerate it entirely. Also, 5-4-3 rule has a lot to do with detecting
collisions, which is non-issue in bridged networks.


Marko.




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