Ethernet . EtherType , , 1500, Ethernet II L/T. LLC. LLC , IPX, 2- , , 255 . , DSAP SSAP , , 255 , Raw 802.3. DSAP SSAP. 0, Ethernet SNAP, , 802.3/LLC.
. 11.2 , Ethernet .
11.2. Ethernet,
Ethernet II | IPX, IP, AppleTalk Phase I |
Ethernet 802.3 | IPX |
Ethernet 802.2 | IPX, RAM |
Ethernet SNAP | IPX, IP, AppleTalk Phase II |
Ethernet
Ethernet 0,5 . Ethernet, . CSMA/CD Ethernet 10 /.
Ethernet .
- 10Base-5 0,5 , . 50 . 500 ( ).
- 10Base-2 0,25 , . 50 . 185 ( ).
- 10Base-T (Unshielded Twisted Pair, UTP). . 100 .
- 10Base-F - . 10Base-T. FOIRL ( 1000 ), 10Base-FL ( 2000 ), 10Base-FB ( 2000 ).
10 10 /, Base 10 ( , , Broadband ). .
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10Base-5
10Base-5 Ethernet Xerox Ethernet. 50 , 2,17 10 ( Ethernet). RG-8 RG-11.
, , , , . 3.7.
. 500 ( ) 50 , . () , , , .
11.8. 10 Base-5,
(transmitter+receiver = transceiver), . , , .
AUI (Attachment Unit Interface) 50 , 4 ( AUI). . , , MAC. , (, ) AUI. AUI DB-15.
100 , 2,5 . 2,5 , . .
, :
- ;
- ;
- ;
- .
, (jabber control). , . - , . , , . ( ), . ( ) 1221 , jabber- 4000 (4 ).
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. 11.9. , , .
. ( 1,5 ), , . () , .
10Base-5 (repeator). . , , . ( ) , , . , , IPG.
11.9
4 , , 5 . 500 10Base-5 2500 . 3 5 , , . , , . . 11.8 Ethernet, , . , .
Ethernet 10Base-5 5-4-3: 5 , 4 , 3 . , . , , 72 576 .
, 99 . 10Base-5 99x3 = 297 .
10Base-5 :
- ;
- ;
- AUI.
10Base-5 :
- ;
- - ;
- ;
- ;
- .
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10Base-2
10Base-2 0,89 5 ( Ethernet). 50 . RG-58 /U, RG-58 A/U, RG-58 C/U.
185 , 50 . , - 10Base-2 Cheapernet ( cheaper ). , .
BNC -, , , . , , 30. 1. 1 .
10Base-2 , 5-4-3. 5x185 = 925 . , , 2500 .
10Base-2 10Base-5. , , . , .
10Base-2, , . 11.10.
11.10. 10Base-2
, , - 50 . : , , ( - , ), . , , - , , .
10Base-5 10Base-2 . ( ), .
10Base-T
1991 , Ethernet, 802.31.
10Base-T (Unshielded Twisted Pair, UTP). 3 ( , NEXT ) . Voice Grade, , .
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- . ( ), ( Rx ). . 11.11 . , , .
11.11. 10Base-T: - ; Rx -
( hub concentrator). , , ( ). R- jam- -. 10 / ( ) 100 3. 100 10 / .
-II . , - . . .
, ( ) - . . .
. - .
- . , , .
. - 10 , , 5 - . .
10Base-T , . , .
CSMA/CD , 4. 4- 5-4-3, . 10Base-T , (. 11.12).