, () .
OSI.
- , OSI . - , MAC-, , ( ).
, .
Wi-Fi . .
.
Packet Tracer (. . 1.1).
.
1.1. .
. : , 7 ( 8 ) , , 1 2 ( ), . | |
Ethernet , OSI. : 10 / (Ethernet), 100 / (Fast Ethernet) 1000 / (Gigabit Ethernet). | |
Ethernet , OSI. : 10 / (Ethernet), 100 / (Fast Ethernet) 1000 / (Gigabit Ethernet) | |
(100 / 1000 /). | |
, . - (, ), . | |
, , Packet Tracer. | |
DCE DTE | , WAN. DCE-. DTE . DCE . Serial DCE, , , DCE-, - DTE. , Serial DTE. |
|
|
, , , , ..
. DSL, "" ..