. , . Ethernet ( ).
Ethernet, , . Ethernet , CSMA/CD.
IEEE802.3 :
10BASE5 ( ) - 10 / 500;
10BASE2 ( ) - 10 / 200;;
10BASE-T ( ) - . 100. 1024;
10BASE-F ( ) - . 2000.
Ethernet : IEEE802.3u/Fast Ethernet IEEE802.3z/Gigabit Ethernet. , Fast Ethernet Gigabit Ethernet, .
Fast Ethernet 100 / :
100BASE-T4 - ( ). 100;
100BASE-TX - ( ). 100;
100BASE-FX - ( ). 2000;.
Gigabit Ethernet 1000 /. :
1000BASE-SX 850 .
1000BASE-LX 1300 .
1000BASE-CX .
1000BASE-T .
Fast Ethernet Gigabit Ethernet , () Ethernet, Ethernet, Fast Ethernet Gigabit Ethernet .
Ethernet
, , , . Ethernet 802.3 IEEE.
72 1526
- .
.
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SFD (Start-Frame Delimiter) - , . SFD
.
- - , .
- - , .
: - , , , 08-10-39-03-2F-C3.
/ - , ,
(LLC - Logical Link Control). Ethernet-
, (
EtherType).
- - 0 1500 ,
.
- ,
64 .
(FCS) - , ,
(CRC). FCS
, .
Token Ring. Token Ring. Token Ring. . . Token Ring. Token Ring. Token Ring.
. . .
:
1) , , , (). , . , , , . , ;
2) ;
3) .
Token-Ring , . Token-Ring - ( ). ( ). ( ) . - 260, - 4000 . 16 /.
, . Token Ring: . Token Ring :
1)
2) , ,
3) - .
:
- . , Ethernet
- . , . .
- . .
- . .
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- . , .