. , , .
.
, ( ) . , . .
, .
. . , .
Ethernet
ETHERNET
Ethernet Xerox 70- 80-. Ethernet , 1973 .
, (tap), . . , . , , .
. , , . -, .
, , . , , , . , , .
. . , , . . , , , , . , .
|
|
ETHERNET,
1
CSMA (Carrier-Sense Multiple Access ), , , - . (carrier tone), , - , . , . Collision Detection ( ) - , . , . ( ).
, , . . . , , . , , . 0 1 , . , , , : 0, 1, 2, 3. , 0-7 . . 10 0-1023. 16 . . , .
, . . , , , , .
IEEE802.3
-, 7- 0 1,
- (Start Frame Delimeter, SFD) 10101011,
|
|
- ,
- ,
- \ . Logical Link Control ( ) . 1518
- LLC
-, , ,
- (Frame Check Sequence) 32- , , ,
2 IEEE802.3