Fast Ethernet (IEEE 802.3u)
Fast Ethernet Ethernet. :
- 100 /c;
- Ethernet;
- - .
10Base-T - Ethernet - , : Fast Ethernet . 100Base-T (802.3u) ( OSI) :
- 100Base-TX UTP Category 5, STP Type 1;
- 100Base-T4 UTP Category 3, 4 5;
- 100Base-FX .
IEEE 802.3z,ab Gigabit Ethernet
Ae 10-Gigabit Ethernet
10G Ethernet , .
CSMA/CD. . .
Ethernet. Ethernet IPG Ethernet. . .
() ; , (IPG - InterPacket Gap) .
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. 10.2. (IPG) Ethernet
10BASE2 | ||
10BASE5 | ||
10BASE-T | ||
10BASE-FL |
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16 + 11+8 + 8 = 43,
49. , .
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, 10BASE-T , 10BASE2 (16 ), .
II ─ , , , (Ethernet, Fast Ethernet);
I ─ , , , ( Fast Ethernet).
() II - , Ethernet. Fast Ethernet. , . ( .) , . , 10BASE-T 100BASE-TX. , , , , 10BASE-T 10BASE-FL 100BASE-TX 100BASE-FX. , 100BASE-TX 100BASE-T4. II , I. , 46 ( 100BASE-TX/FX) 67 ( 100BASE-T4). ( , 24). , , , . () I , , . II, , , , 100BASE-TX, 100BASE-T4 100BASE-FX. , ( , 140 ). I , . . , , , , . SNMP (Simple Network Management Protocol ). , , (Intelligent Hub).
21. Arcnet. . Arcnet. ARCNET ( ARCnet, . Attached Resource Computer NETwork) , Ethernet Token ring. ARCNET 1980- . . : (switch)/
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Ethernet , ARCNET .
ARCNET ( ) ARCNET Trade Association (ATA).
22. IEEE 802.5 ( Token Ring) FDDI. . . . Token Ring (LAN) , (DLL) OSI. , , . . . Token Ring IEEE 802.5 . , . . , , , . ( 10 ). , . Ethernet, , , . , , , , ( ), , . , ( early token release), , , . , Token Ring . , . , , . ; , . , , .
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( MAC-), (LLC-). Token Ring 6 MAC-. " " (MAC LLC) , MAC, , .
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FDDI , . Token Ring ( ) - token ring (. 32, ). , - (. 32, ). , , , - Token Holding Time (THT). THT . , . FDDI (upstream neighbor) (downstream neighbor), . . , (. 32, ). , , , , . , , ( , ), , FDDI (, IP), (. 32, ). : , .