7


6.9. 4 充89

6.9.5 89

6.9.6 ..89

7 ..91



IEEE 802.1 - 802.593



Ethernet.95



7.3 CSMA/CD.96

7.4 Ethernet101

7.5 10Base-T102

7.6 10Base-F...103

7. 7 Ethernet105

8 Token Ring...109

8.1 ...109

8.2 Token Ring111

8.3 Token Ring 116

9 Fast Ethernet117

9.1 Fast Ethernet Etherneta..117

9.2 Fast Ehernet..120

9.3 Fast Ehernet..121

9.4 II...123

9.5 II.124

9.6 100BaseFX

...125

9.7 Gigabit Ethernet 126



10

FDDI...128

10.1 ...134

10.2 腅..134

11 100VG-AnyLAN..134



11.1 100VG-AnyLAN..136

11.2 100VG-AnyLAN...138

11.3 MAC...140

11.4 PMI.142

11.5 PMD....144

11.6 100VG-AnyLAN..147

11.7 100VG-AnyLAN..147

12 酅...149

12.1 酅152

12.2 VLAN ⅅ..152

12.3 VLAN MAC=ⅅ...153