Aironet BR2000-E Manual de usuario descargar pdf (Pagina 30)

CSE5501: MOBILE & DISTRIBUTED COMPUTING SYSTEMS

Lecture 3: Wireless LANs

The entire WLAN industry loses if we let the 5 GHz band

devolve into the same situation as the 2.4 GHz band.

2.4GHz / 5GHz Industry Issues

• 2.4 GHz is being perceived as a band that is overcrowded

with incompatible protocols and interfering devices and

will result in dissatisfied WLAN users

• At 5 GHz

♦ Neither Hiperlan2 or 802.11a adequately addresses the issue of

low cost, low power, low speed devices

♦ Hiperlan2 and 802.11a have incompatible MAC/data link control

(DLC) layers

1 2 ... 25 26 27 28 29 30 31 32 33 34 35 ... 117 118

Wireless Technologies 1
& Networks 1
Recommended References 2
The wireless data 4
Wireless LANs 5
Wireless will replace wired? 7
WLAN APPLICATIONS 8
RESEARCH ISSUES 10
WLAN Evolution: 2000 11
Wireless LAN Applications 12
Wireless Data Networks 13
902 - 928 MHz 16
2.4 - 2.4835 GHz 16
83.5 MHz 16
(IEEE 802.11) 16
• FSK DATA MODULATION 19
802.11 Protocol Layers 20
Global RF Regulations 21
Access Point Coverage 22
FHSS - 1 Mbps and 2 Mbps 23
DSSS – 2+ Mbps 23
Infrared 23
802.11 compliant products 23
Current proprietary products 23
IEEE Project 802 charter: 26
IEEE 802.11a Current Status 27
IEEE 802.11x Enhancements 28
2.4GHz Protocol Issues 29
2.4GHz / 5GHz Industry Issues 30
2 and 802.11a that: 31
Information Anytime, Anywhere 32
Personal Area Wireless 34
•Small business 35
•Enterprise 35
Ad Hoc Networks 36
A Connected Home 37
A Connected Small Office 38
Enterprise 39
An ISP Connected Public Space 41
Allows ISP roaming agreements 42
Wireless Architecture 44
Overview, 802.11 Architecture 45
Steps to Association: 46
Steps to Re-association: 47
• Mobile user connectivity 48
Internet 49
Microcellular Architecture 50
Wireless Clients 51
Wireless 51
LAN Backbone 52
Access Point 53
Wireless Repeater 54
System Redundancy 55
ARLAN/Cisco Product Families 56
4800 Series 57
4500 Series 57
3500 Series 57
All the features of the 58
4500 plus… 58
1, 2, 5.5 and 11 Mbps 58
Same drivers, APs 58
Access Points 59
Configuration 60
Diagnostics 60
Statistics 60
Top Panel LED’s 61
Connect to Console 62
Main Menu 63
Configuration Menu 64
Config Radio menu (AP’s) 65
Config Radio menu (BR’s) 66
802.11 Menu 67
Encryption Menu 68
802.11 Encapsulation Menu 69
Encapsulation Menu (cont.) 70
Radio Extended Menu (AP’s) 71
Radio Extended Menu (BR’s) 72
Ethernet Menu 73
Identification Menu 74
Identification Routing Menu 75
Console Menu 76
Time Menu 80
Throughput Statistics 82
Radio Statistics 83
Radio Node Statistics 85
Association Menu 86
Association Table 87
Filter Menu’s 88
Multicast Filters 89
Node Filtering 90
Protocol Filtering 91
Protocol Monitor 92
Logs Menu 93
Snmp Menu 94
Diagnostics Network Menu 96
Lecture 3: Wireless LANs 100
STP Menu for BR’s 102
⇒ Flash upgrade to the client 103
⇒ Reconfigure the PC Card 103
⇒ Link Test 103
Network Drivers 104
Aironet Model Numbers 105
Wireless Bridging 106
0 to 25 miles 107
Building A Building B 107
Building B 108
Building C 108
Building A 108
New Addition to the system! 109
1 Mile @ any Datarate 110
25 Miles @ 2Mb 110
12 Miles @11Mb 110
WLAN Infrastructure 112
WLAN resources (1) 113
WLAN resources (2) 114
Suggested Reading 115
 Wireless LANs – IEEE 802.11 117
• Bluetooth 118
• GPRS & 3G 118
• Mobile IP 118

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Aironet BR2000-E Manual de usuario Pagina 30

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