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Mobility and the WM-AD Manager
Summit WM-Series WLAN Switch and Altitude Access Point Software Version 1.0 User Guide
107
To support the Availability feature during a “Failover” event, administrator will need to perform the
following actions:
1 Monitor the critical messages for the “Failover mode” message, in the information log of the
remaining Summit WM-Series Switch (in the Reports and Displays area).
2 After recovery, on the Summit WM-Series Switch that did not fail, select the “foreign” Altitude APs
and click on the Release button (in the Altitude AP Configuration - AP Maintenance screen).
Mobility and the WM-AD Manager
The Summit WM-Series Switch Software system has a technique by which multiple Summit WM-Series
Switches on a network can discover each other and exchange information about a client session. This
enables a wireless device user to roam seamlessly between different Altitude APs on different Summit
WM-Series Switches.
The solution introduces the concept of a “WM-AD Manager”. This means that one Summit WM-Series
Switch on the network must be designated as the “WM-AD Manager”. All other Summit WM-Series
Switchs are designated as “WM-AD Agents”. To define whether the Summit WM-Series Switch is a
Manager or an Agent, use the WM-AD Manager screen in the Summit WM-Series Switch Configuration
area.
The wireless device will keep the IP address, WM-AD assignment and filtering rules that it received
from the Summit WM-Series Switch that it first connected to - its “home” Summit WM-Series Switch.
(This information is collected in the Active Clients by WM-AD display on the home Summit WM-Series
Switch.) The WM-AD on each Summit WM-Series Switch must have the same SSID. If the WM-AD has
static WEP, it is recommended that the same key be used.
NOTE
The “WM-ADManager” concept relies on SLP and DHCP. Before you begin, you must ensure that the DHCP server
on your network supports Option 78. These are also used during the Altitude AP discovery process, explained earlier
in this Guide.
VW-AD Manager and VW-AD Agent: Background
The Summit WM-Series Switch that is the “WM-AD Manager”:
● uses SLP to register itself (as “ExtremeNet”) with the SLP Directory Agent
● listens for connection attempts from “WM-AD Agents”
● if it receives a connection attempt from “WM-AD Agent”, establishes connection and sends a
message to the “WM-AD Agent” specifying the Heartbeat interval, and the WM-AD Manager's IP
address
● sends regular Heartbeat messages (which contain wireless device session changes and Agent
changes) to the WM-AD Agents and waits for an Update message back
● if it fails to receive an Update from the WM-AD Agent after three Heartbeat messages, sends a
Disconnect message to the WM-AD Agent, removes all wireless device users associated with that
WM-AD Agent Summit WM-Series Switch from its tables and closes down the connection.
- Table of Contents 3
- Formatting conventions 10
- Documentation feedback 10
- Protocols and standards 11
- Regulatory information 11
- About this Guide 12
- Conventional wireless LANS 13
- Wireless AP 15
- Summit WM 15
- Wireless Controller 15
- Network traffic flow 18
- Network security 19
- Policy: packet filtering 21
- Mobility and roaming 21
- Availability 22
- Quality of Service (QoS) 22
- Data ports (4 or 2) 24
- Management ports 24
- Configuration steps: overview 31
- Enabling the product key 31
- Setting up the data ports 32
- Port Type or Function 34
- Setting up static routes 35
- Setting up OSPF Routing 36
- Define port exception filters 40
- 4 Altitude AP: startup 41
- Installing the Altitude APs 43
- Set the discovery timers 45
- Discovery and registration 46
- Registration after discovery 48
- Altitude AP access approval 49
- ● 802.11 b/g (2.4 GHz radio) 53
- ● 802.11a (5 GHz radio) 53
- Adding a Altitude AP manually 56
- Auto Cell software 58
- Configure Auto Cell software 59
- Altitude AP: startup 60
- Introduction 61
- What is a WM-AD? 62
- Topology of a WM-AD 62
- Filtering for a WM-AD 64
- Setting up a new WM-AD 66
- Global Settings for a WM-AD 68
- Topology for a WM-AD 71
- Use DHCP Relay for the WM-AD 74
- Topology for a WM-AD for AAA 75
- Authentication for a WM-AD 76
- ● No Captive Portal Support 80
- Captive Portal” on page 87) 81
- Accounting for a WM-AD 84
- RADIUS Policy for a WM-AD 84
- Filtering rules for a WM-AD 86
- Default Filter: Examples 93
- Multicast for a WM-AD 95
- Privacy for a WM-AD 96
- Privacy for a WM-AD for AAA 97
- A WM-AD for voice traffic 101
- Availability and Mobility 103
- Management users 111
- Network time 112
- Check Point event logging 113
- Setting up SNMP 115
- Setting SNMP Parameters 116
- Overview 123
- Summit Spy: running scans 125
- The Analysis Engine 126
- 11 Ongoing operation 131
- Altitude AP client management 133
- Client disassociate 134
- Client blacklist 135
- Health Checking 136
- Change the system log level 136
- Enable and configure Syslog 136
- Logs and alarms 141
- View the Logs 142
- View the Traces 142
- View the Audits 143
- Reports and displays 144
- View reports 146
- Glossary 147
- D (Continued) 149
- F (Continued) 151
- H (Continued) 152
- I (Continued) 153
- O (Continued) 156
- P (Continued) 157
- S (Continued) 160
- T (Continued) 162
- W (Continued) 164
- Altitude AP system states 168
- B CLI command reference 169
- CLI command reference 170
- RFC list 177
- 802.11 standards list 178
- Reference lists of standards 180
- E Support for Altitude AP 181
- F RADIUS Attributes 183
- RADIUS Accounting 184
- Account-Stop/Interim Packet 185
- Termination Codes 186
- G Logs and Events 187
- Logs and Events 188
- Critical 189
- CDR_COLLECTOR 191
- CONFIG_MANAGER 191
- EVENT_SERVER 192
- RADIUS_ACCOUNTING 194
- RADIUS_CLIENT 194
- RF_DATA_COLLECTOR 195
- RU_MANAGER 195
- SECURITY_MANAGER 196
- STARTUP_MANAGER 197
- STATS_SERVER 198
- ACCESSPOINT 200
- CPDP_AGENT_ID 203
- NSM_SERVER 205
- OSPF_SERVER 206
- PORT_INFO_J_MANAGER 206
- REDIR_ID 207
- H Regulatory Information 213
- Emissions 214
- FCC ID#: RJF-A3502 216
- Part 15 Unlicensed Antenna 217
- European Community 218
- European Spectrum Usage Rules 221
- Regulatory Information 222
- Declarations of Conformity 223
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