Alvarion BREEZEACCESS SW VERSION 5.1 Manuel d'utilisateur Page 215
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Menus and Parameters
Operation and Administration
183
4.2.6.5 Performance Parameters
The Performance Parameters menu enables defining a series of parameters that
control the method by which traffic is transmitted through the wireless access
network.
The Performance Parameters menu includes the following parameters:
RTS Threshold
Minimum Contention Window
Maximum Contention Window
Multicast Modulation Level (AU only)
Maximum Modulation Level
Average SNR Memory Factor
Number of HW Retries
Burst Mode
Adaptive Modulation Algorithm
Concatenation Parameters
4.2.6.5.1 RTS Threshold
The RTS Threshold parameter defines the minimum frame size that requires an
RTS/CTS (Request To Send/Clear To Send) handshake. Frames whose size is
smaller than the RTS Threshold value are transmitted directly to the wireless link
without being preceded with RTS frames. Setting this parameter to a value larger
than the maximum frame size eliminates the RTS/CTS handshake for frames
transmitted by this unit.
The available values range from 20 to 4092 bytes for units with HW revision C or
higher, and 20 to 2200 for units with HW revision A or B.
The default value for SUs is 60 bytes.
For AUs with HW revision C or higher, the default is 4092, and for AUs with HW
revision A or B the default is 2200. It is recommended that these values be used
to ensure that RTS/CTS is never used in the AU. Minimum Contention Window
- System Manual 1
- BreezeACCESS 1
- Document History 2
- Legal Rights 10
- Legal Rights 11
- Trade Names 13
- Disclaimer 14
- Limitation of Liability 15
- Electronic Emission Notices 15
- Important Notice 19
- About This Manual 21
- Contents 23
- Contents 25
- Figures 27
- Tables 31
- 1.2 Base Station Equipment 36
- Base Station Equipment 37
- 1.3 Subscriber Unit 40
- Subscriber Unit 41
- 1.3.2 SU-I Subscriber Units 43
- 1.3.3 The SU-E-BS 43
- 1.5 Networking Equipment 45
- 1.6 Management Systems 46
- Management Systems 47
- 1.7 Specifications 49
- 1.7.2 Data Communication 52
- Specifications 53
- 1.7.5.1.1 Mechanical 55
- 1.7.5.1.2 Connectors 56
- 1.7.5.1.3 Electrical 56
- 1.7.5.2.2 Connectors 57
- 1.7.5.3.1 Mechanical 58
- 1.7.5.3.2 Connectors 59
- 1.7.5.3.3 Electrical 59
- 1.7.5.4.1 Mechanical 60
- 1.7.5.4.2 Connectors 61
- 1.7.5.4.3 Electrical 61
- 1.7.6 Environmental 63
- Chapter 2 - Installation 65
- 2.1.1 Packing List 66
- Installation Requirements 67
- 2.3.2.1 Polarization 75
- Installation 77
- 2.3.5.3 New ODU 82
- 2.5 Installing the SU-I 86
- Installing the SU-I 87
- 2.5.4 Installing the SU-I 88
- 2.5.5.1 Wall Mount 90
- 2.5.5.3 Window Mount 93
- Equipment 95
- Chapter 3 - Commissioning 101
- 3.1.1 Initial Configuration 102
- SU-A/E-ODU) 107
- Commissioning 109
- Maximum Modulation Level 110
- 3.5 Operation Verification 112
- Operation Verification 113
- Base station) 118
- (Modular Base Station) 118
- In This Chapter: 119
- 4.1.2 Common Operations 121
- 4.2 Menus and Parameters 123
- 4.2.2.1 Show Unit Status 124
- Menus and Parameters 125
- 4.2.3 Unit Control Menu 128
- 4.2.3.1 Reset Unit 129
- 4.2.3.2 Default Settings 129
- 4.2.3.3 Change Unit Name 135
- 4.2.3.4 Change Password 135
- 4.2.3.5 Flash Memory Control 135
- 4.2.3.6 Log Out Timer 136
- 4.2.3.9 Event Log Menu 137
- 4.2.3.9.4 Event Log Upload 138
- 4.2.3.10 Feature Upgrade 139
- 4.2.4.1.1 IP Parameters 143
- 4.2.5 Site Survey Menu 145
- 4.2.5.1 Traffic Statistics 146
- 4.2.5.1.2 WLAN Counters 147
- 4.2.5.2 Ping Test 150
- 4.2.5.4 MAC Address Database 152
- 4.2.5.7 Link Capability 158
- 4.2.6.1 IP Parameters 160
- 4.2.6.1.4 DHCP Client 161
- 4.2.6.1.4.1 DHCP Option 161
- 4.2.6.1.4.2 Access to DHCP 162
- 4.2.6.2.2 ESSID Parameters 162
- 4.2.6.2.4.1 Sub-Band Select 165
- 4.2.6.2.4.2 Frequency 165
- 4.2.6.2.4.3 DFS Parameters 166
- 4.2.6.2.5.1 Sub-Band Select 169
- 4.2.6.2.6.1 Best AU Support 171
- 4.2.6.2.8.1 Transmit Power 174
- 4.2.6.2.8.3.1 ATPC Option 176
- 4.2.6.2.8.4.1 ATPC Option 177
- 4.2.6.2.9 Antenna Gain 178
- 4.2.6.2.10.3 Fairness Factor 180
- 4.2.6.2.14 Spectrum Analysis 182
- 4.2.6.2.18.2 Forced Value 188
- 4.2.6.2.19.1 Basic Settings 189
- 4.2.6.2.19.1.5 Scanning Type 190
- 4.2.6.2.19.2.1 AU Height 191
- 4.2.6.2.19.3 Activation 192
- 4.2.6.4 Bridge Parameters 198
- 4.2.6.4.1.3 VLAN Link Type 201
- 4.2.6.4.1.3.2 Trunk Link 202
- 4.2.6.4.1.3.3 Hybrid Link 203
- 4.2.6.4.2.1 Filter Options 209
- 4.2.6.4.4 Bridge Aging Time 212
- 4.2.6.5.1 RTS Threshold 215
- 4.2.6.5.7 Burst Mode 219
- 4.2.6.5.8.2 History Size 221
- 4.2.6.6 Service Parameters 224
- 4.2.6.7 Security Parameters 239
- 4.2.6.7.3 Security Mode 240
- Using TFTP 243
- Defaults Utility 251
- Outdoor SU Cable 253
- 12345678 254
- Parameters Summary 255
- In This Appendix: 257
- E.1 Parameters Summary 258
- E.1.2 IP Parameters 259
- E.1.5 Bridge Parameters 262
- 5 milliseconds or the value 264
- E.1.7 Service Parameters 265
- E.1.8 Security Parameters 266
- Appendix F - Troubleshooting 269
- Problem and Indication 271
- F.3 Low Throughput Problems 272
- Low Throughput Problems 273
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