Extreme Networks Summit WM Series Guía de usuario Pagina 158
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Availability, mobility, and controller functionality
Summit WM Series WLAN Switch and Altitude Access Point Software Version 4.1 User Guide
158
Events and actions during a failover
If one of the Summit WM series switches in a pair fails, the connection between the two Summit WM
series switches is lost. This triggers a failover mode condition, and a critical message is displayed in the
information log of the remaining Summit WM series switch.
After the Altitude AP on the failed Summit WM series switch loses its connection, it will try to connect
to all enabled interfaces on both controllers without rebooting. If the Altitude AP is unsuccessful, it will
begin the discovery process. If the Altitude AP is not successful in connecting to the Summit WM series
switch after five minutes of attempting, the Altitude AP will reboot.
If the AP is assigned to different WM-ADs on the two controllers, it will reboot. Because of the pairing
of the two Summit WM series switches, the Altitude AP will then register with the other Summit WM
series switch.
All user sessions using the AP that fails over will terminate unless the Maintain client sessions in
event of poll failure option is enabled on the AP Properties tab or AP Default Settings screen.
NOTE
An Altitude AP connects first to a Summit WM series switch registered as ac_manager and, if not found, then seeks
an ru_manager. If the primary Summit WM series switch fails, the secondary one registers as ru_manager. This
enables the secondary Summit WM series switch to be found by Altitude APs after they reboot.
- Contents 3
- Formatting conventions 10
- Documentation feedback 10
- Safety Information 11
- Installing Power Supply Units 12
- Power Input Requirements 12
- Maintenance Safety 13
- General Safety Precautions 13
- Power Supply Cords Selection 13
- WARNING! 15
- Sicherheitshinweise 16
- Installation von Netzteilen 17
- Wartungssicherheit 17
- Auswahl der Stromkabel 18
- About this Guide 20
- Conventional wireless LANs 21
- Network traffic flow 25
- Network security 26
- Authentication 27
- WM Access Domain Services 28
- Mobility and roaming 29
- Network availability 29
- System Configuration Overview 30
- System configuration overview 34
- Configuring for remote access 35
- Setting up the data ports 42
- ● Host Port 43
- ● Third-Party AP Port 43
- ● Router Port 43
- Setting up static routes 45
- Setting up OSPF Routing 47
- 3 Configuring the Altitude AP 55
- Altitude AP radios 56
- Altitude AP discovery 57
- Registration after discovery 58
- Security mode 60
- Discovery timers 61
- ● Number of retries 62
- ● Delay between retries 62
- ● PoE enabled switch port 63
- ● PoE Injector 63
- ● Power by AC adaptor 63
- America 74
- Copy to Defaults feature 79
- Controlled Upgrade settings 84
- WM-AD overview 85
- Setting up a WM-AD checklist 86
- Topology of a WM-AD 87
- RF assignment for a WM-AD 88
- Filtering for a WM-AD 90
- Final filter rule 91
- Filtering sequence 91
- WM-AD global settings 92
- Setting up a new WM-AD 96
- Topology for a WM-AD 98
- Enabling management traffic 100
- To create an AAA topology: 105
- Authentication for a WM-AD 108
- ● Select IP/Port 125
- ● DNS (IP of DNS server) 126
- Default filter examples 132
- Privacy for a WM-AD for AAA 138
- Table 12: Service classes 143
- QoS modes 144
- Table 15: Queues 145
- Bridging traffic locally 149
- ● Tagged 150
- ● Untagged 150
- Availability overview 153
- Availability prerequisites 154
- Viewing SLP activity 156
- To view SLP activity: 157
- Mobility manager 159
- Defining management users 163
- Configuring network time 165
- To apply time zone settings: 166
- To set Network Time Protocol: 167
- Enabling SNMP 169
- To enable SNMP Parameters: 170
- Using controller utilities 171
- Trace Route 172
- Working with third-party APs 178
- Summit spy overview 179
- Running Summit Spy scans 181
- Analysis engine overview 183
- Working with friendly APs 186
- To delete a friendly AP: 187
- To modify a friendly AP: 187
- To maintain the Altitude APs: 189
- Viewing the displays 191
- To view reports and displays: 192
- Viewing reports 198
- To view reports: 199
- Disassociating a client 203
- Blacklisting a client 204
- To change the log levels: 208
- To set a poll interval: 209
- ● Halt system: reboot 210
- To upload a new backup: 215
- To delete a backup: 216
- To schedule a backup: 216
- To download for restore: 218
- To upload an image file: 219
- Logs including alarms 221
- To view logs: 222
- To view traces: 223
- To view audits: 224
- To clear logs: 225
- Performing system maintenance 226
- Glossary 227
- D (Continued) 229
- I (Continued) 233
- M (Continued) 235
- N (Continued) 236
- O (Continued) 237
- P (Continued) 238
- R (Continued) 239
- S (Continued) 240
- W (Continued) 244
- A System states and LEDs 247
- Altitude AP system states 248
- System states and LEDs 250
- B Regulatory Information 251
- EMI/EMC Standards 252
- Telecom Standards 252
- Physical and Environmental 253
- Part 15 Unlicensed Antenna 255
- European Community 257
- European Union 1999/5/EC 258
- European Spectrum Usage Rules 260
- Declarations of Conformity 262
- Regulatory Information 264
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