Ethernet ([ˈiːθərˌnɛt] . ether [ˈiːθər] ) .
Ethernet , OSI. Ethernet IEEE 802.3. Ethernet 90- , , Arcnet, FDDI Token ring.
Ethernet II
10 / Ethernet
10BASE5, IEEE 802.3 ( Ethernet) 10 /. IEEE 50 (RG-8), 500 .
10BASE2, IEEE 802.3a ( Ethernet) RG-58, 185 , , T-, BNC-. . Ethernet.
StarLAN 10 , 10 /. 10BASE-T.
, () , , Ethernet, . , . , .
10BASE-T, IEEE 802.3i 4 ( ) -3 -5. 100 .
FOIRL ( . Fiber-optic inter-repeater link). Ethernet, . 1 .
10BASE-F, IEEE 802.3j 10 / ethernet-, 2 : 10BASE-FL, 10BASE-FB 10BASE-FP. 10BASE-FL .
10BASE-FL (Fiber Link) FOIRL. 2 .
10BASE-FB (Fiber Backbone) , .
10BASE-FP (Fiber Passive) , .
|
|
Ethernet (Fast Ethernet, 100 /)
100BASE-T , . 100 . 100BASE-TX, 100BASE-T4 100BASE-T2.
100BASE-TX, IEEE 802.3u 10BASE-T . 5, , , 100 .
100BASE-T4 , 3. , . .
100BASE-T2 , 3. . , . 50 /. .
100BASE-SX , . 400 ( ) 2 .
100BASE-FX , . , 2 10 .
100BASE-FX WDM , . - . , ( ) A(1310) B(1550). : 1310 , 1550 .
Ethernet (Gigabit Ethernet, 1 /)
1000BASE-T, IEEE 802.3ab , 5e. 4 . 250 / . PAM5, 62,5 . 100
1000BASE-TX (. Telecommunications Industry Association, TIA) 2001 Ethernet 1000 / (1000BASE-TX) 6 (ANSI/TIA/EIA-854-2001) (. A Full Duplex Ethernet Specification for 1000 Mbit/s (1000BASE-TX) Operating Over Category 6 Balanced Twisted-Pair Cabling (ANSI/TIA/EIA-854-2001)). , - ( ), . 1000BASE-TX , , , 1000BASE-T. , , , 1000BASE-TX 6 . , 1000BASE-TX , 1000BASE-T, .
|
|
1000BASE-X GBIC SFP.
1000BASE-SX, IEEE 802.3z , . 550 .
1000BASE-LX, IEEE 802.3z , . , , 5[3] 50 .
1000BASE-CX ( 25 ), 75 ( ). 1000BASE-T .
1000BASE-LH (Long Haul) , . 100 [4].
Token Ring.
Token Ring (LAN) , (DLL) OSI. , , . . .
(LAN) Token ring , , . ARCNET, , FDDI, CSMA/CD Ethernet.
Token Ring IEEE 802.5 . , . . , , , . ( 10 ).
, . Ethernet, , , .
, , , , ( ), , . , ( early token release), , , . , Token Ring . , .
, , . ; , . , , .
FDDI.
FDDI (. Fiber Distributed Data Interface - ) , 200. Token Ring. , FDDI .
|
|
FDDI - , , CDDI (Copper Distributed Data Interface). , . , ; , . , Token Ring.
, .
32. Me CSMA/CD
CSMA/CD (Carrier Sense Multiple Access with Collision Detection ) (802.3) . CSMA/CD (, ) . Ethernet, (Fast Ethernet, Gigabit Ethernet).
, , , jam signal ( backoff delay truncated binary exponential backoff), .
CSMA .
, , Ethernet, . , ( ) . jam signal, , .
Ethernet CSMA/CD.