Unit 1Computer Network Basics1
Section AIntroduction to Computer Networks1
Notes5
New Words and Phrases5
Computer Terminologies7
Exercises8
Extending Your Reading9
参考译文9
Section BReference Models12
Notes17
New Words and Phrases17
Computer Terminologies18
Exercises18
Extending Your Reading19
参考译文19
Unit 2The Physical Layer24
Section AData Communication Basis 24
Notes26
New Words and Phrases26
Computer Terminologies27
Exercises27
Extending Your Reading28
参考译文28
Section BTransmission Media30
Notes33
New Words and Phrases33Computer Terminologies34
Exercises35
Extending Your Reading36
参考译文36
Section CCircuit Switching and Packet Switching39
Notes40
New Words and Phrases40
Computer Terminologies40
Exercises40
Extending Your Reading41
参考译文41
Unit 3The Data Link Layer43
Section AError Detection and Correction43
Notes45
New Words and Phrases45
Computer Terminologies46
Exercises46
Extending Your Reading47
参考译文47
Section BExample Data Link Protocols49
Notes51
New Words and Phrases52
Computer Terminologies52
Exercises52
Extending Your Reading53
参考译文53
Section CEthernet and Wireless LANs55
Notes58
New Words and Phrases58
Computer Terminologies59〖3〗Exercises59
Extending Your Reading60
参考译文60
Section DNetwork Interconnection Devices63
Notes65
New Words and Phrases66
Computer Terminologies66
Exercises66
Extending Your Reading67
参考译文67
Unit 4The Network Layer69
Section ARouting Algorithms69
Notes72
New Words and Phrases73
Computer Terminologies73
Exercises73
Extending Your Reading74
参考译文74
Section BThe IPv4 Protocol77
Notes81
New Words and Phrases81
Computer Terminologies82
Exercises82
Extending Your Reading83
参考译文83
Section CInternet Control Protocols87
Notes90
New Words and Phrases90
Computer Terminologies90
Exercises91Extending Your Reading91
参考译文92
Section DIPv6 Packet Format94
Notes97
New Words and Phrases97
Computer Terminologies97
Exercises98
Extending Your Reading98
参考译文98
Unit 5The Transport Layer101
Section AThe Transport Service and UDP101
Notes104
New Words and Phrases104
Computer Terminologies105
Exercises105
Extending Your Reading105
参考译文106
Section BTCP and its Congestion Control108
Notes112
New Words and Phrases112
Computer Terminologies113
Exercises113
Extending Your Reading113
参考译文114
Unit 6The Application Layer117
Section ANetwork Applications117
Notes121
New Words and Phrases121〖3〗Computer Terminologies121
Exercises122
Extending Your Reading122
参考译文123
Section BNetwork Software126
Notes131
New Words and Phrases131
Computer Terminologies132
Exercises132
Extending Your Reading133
参考译文133
Unit 7Network Security138
Network Security138
Notes142
New Words and Phrases142
Computer Terminologies143
Exercises143
Extending Your Reading144
参考译文144
Unit 8The New Network Technology148
New Network Technologies148
Notes152
New Words and Phrases152
Computer Terminologies153
Exercises153
Extending Your Reading153
参考译文154
Unit 9Translation Skills of Computer Network English157
计算机网络英语翻译技巧157
附录部分习题答案170
参考文献171
