- , 192 240? 10 16 / ? , - , , , . , 5 Ethernet Token Ring, a - Fast Ethernet. , - , ? , , . , , . 4.10, Ethernet. , , 72 , . Ethernet 3, - Ethernet 1. , - .
. 4.10.
, , , .
, . , System 5000 Nortel Networks PortSwitch Hub 3Com, , , , . 1 , .
(configuration switching).
, .
- . - / . , , , -.
, , .