Configuration Example - Cisco Mesh Access Points Deployment Manual

Connecting the Cisco 1500 Series Mesh Access Points to the Network
When you enable this setting, the WGB scans for a new parent association when it encounters a poor
Received Signal Strength Indicator (RSSI), excessive radio interference, or a high frame-loss percentage.
Using these criteria, a WGB configured as a mobile station searches for a new parent association and
roams to a new parent before it loses its current association. When the mobile station setting is disabled
(the default setting), a WGB does not search for a new association until it loses its current association.
• Configuring a WGB for Limited Channel Scanning—In mobile environments such as railroads, a WGB
instead of scanning all the channels is restricted to scan only a set of limited channels to reduce the
hand-off delay when the WGB roams from one access point to another. By limiting the number of
channels, the WGB scans only those required channels; the mobile WGB achieves and maintains a
continuous wireless LAN connection with fast and smooth roaming. This limited channel set is configured
using the ap(config-if)#mobile station scan set of channels.
This command invokes scanning to all or specified channels. There is no limitation on the maximum
number of channels that can be configured. The maximum number of channels that can be configured
is restricted only by the number of channels that a radio can support. When executed, the WGB scans
only this limited channel set. This limited channel feature also affects the known channel list that the
WGB receives from the access point to which it is currently associated. Channels are added to the known
channel list only if they are also part of the limited channel set.

Configuration Example

The following example shows how to configure a roaming configuration:
ap(config)#
ap(config-if)#
ap(config-if)#
ap(config-if)#
ap(config-if)#
ap(config-if)#
ap(config-if)#
Use the no mobile station scan command to restore scanning to all the channels.
Table 34: WGB Interoperability Chart, on page 169
bands that support WGB.
Table 34: WGB Interoperability Chart
RAP/MAP
Backhaul
1552/1552
1524SB/1524SB
OL-27593-01
interface dot11radio 1
ssid outside
packet retries 16
station role workgroup-bridge
mobile station
mobile station period 3 threshold 50
mobile station scan 5745 5765
WGB
MAR3200
4.9 GHz 5 GHz 2.4 GHz
(5, 10,
20
MHz)
No Yes Yes
No Yes Yes
Cisco Mesh Access Points, Design and Deployment Guide, Release 7.3
identifies mesh access points and their respective frequency
802.11n Indoor 1130/1240
APs
5 GHz 2.4 GHz 5 GHz
Yes Yes Yes
Yes Yes Yes
WGB Roaming Guidelines
1310
2.4 GHz 5 GHz 2.4 GHz
Yes No Yes
Yes No Yes
169