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Both - Extended and independent WLANs are configured from the switch and operate simultaneously
NOTE
B.1.8 Configuration Updates
An AAP receives its configuration from the switch initially as part of its adoption sequence. Subsequent configuration
changes on the switch are reflected on an AAP when applicable.
An AAP applies the configuration changes it receives from the switch after 30 seconds from the last received switch configuration
message. When the configuration is applied on the AAP, the radios shutdown and re-initialize (this process takes less than 2 seconds)
forcing associated MUs to be deauthenticated. MUs are quickly able to associate
NOTE
NOTE
B.1.9 Securing Data Tunnels between the Switch and AAP
If a secure link (site-to-site VPN) from a remote site to the central location already exists, the AAP does not require IPSec
be configured for adoption.
For sites with no secure link to the central location, an AAP can be configured to use an IPSec tunnel (with AES 256
encryption) for adoption. The tunnel configuration is automatic on the AAP side and requires no manual VPN policy be
configured. On the switch side, configuration updates are required to adopt the AAP using an IPSec tunnel.
To review a sample AAP configuration, see
B.1.10 Adaptive AP Switch Failure
In the event of a switch failure, an AAP's independent WLAN continues to operate without disruption. The AAP attempts
to connect to other switches (if available) in background. Extended WLANs are disabled once switch adoption is lost.
When a new switch is discovered and a connection is secured, an extended WLAN can be enabled.
If a new switch is located, the AAP synchronizes its configuration with the located switch once adopted. If Remote Site
Survivability (RSS) is disabled, the independent WLAN is also disabled in the event of a switch failure.
B.1.11 Remote Site Survivability (RSS)
RSS can be used to turn off RF activity on an AAP if it loses adoption (connection) to the switch.
RSS State
RSS Enabled
RSS Disabled
NOTE
For a review of some important considerations impacting the use of extended and
independent WLANs within an AAP deployment, see
Adaptive AP Deployment
Considerations.
When using an ADP-5131dependant mode AP, be aware that any configuration
changes made directly on the AP will be overwritten once the AP is adopted by
the switch and the configuration file from the switch is received.
When using an AP-7131 in Adaptive AP Mode you must enable WMM on the
associated WLAN in order to achieve the highest data rates available.
Adaptive AP Deployment
Independent WLANs
WLAN continues beaconing
WLAN stops beaconing
For a dependant AAP, independent WLANs continue to beacon for three days in
the absence of a switch.
.
Considerations.
Extended WLANs
WLAN continues beaconing but AP does not
allow clients to associate on that WLAN
WLAN stops beaconing
B - 9
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