Cisco Cisco 5520 Wireless Controller Scheda Tecnica
Wireless CleanAir Deployment Guide
Smart Business Architecture
Step 6:
Carefully place each access point as close to its real position in the
building as possible and click Save.
Figure 37.
AP Placement
NOTE:
You must now wait while the system calculates the heatmaps from the
placement and floorplan area.
Configuring the Cisco Wireless Solution for CleanAir
The Wireless LAN controller with the connected Cisco AIR-CAP3500 access
points is immediately CleanAir capable. The Wireless LAN controllers can give
you immediate information about your environment. Where the WCS can take a
network view, the WLC only displays data retrieved from the locally connected
CleanAir access points.
points is immediately CleanAir capable. The Wireless LAN controllers can give
you immediate information about your environment. Where the WCS can take a
network view, the WLC only displays data retrieved from the locally connected
CleanAir access points.
With the Cisco Wireless Control System in the network, all management will be
handled at the WCS. Management can be done at each controller, but we do not
recommend this. With the CleanAir access point operating from the wireless
LAN Controller, we can log into the Cisco Wireless Control System and configure
our controller to support CleanAir.
handled at the WCS. Management can be done at each controller, but we do not
recommend this. With the CleanAir access point operating from the wireless
LAN Controller, we can log into the Cisco Wireless Control System and configure
our controller to support CleanAir.
Event-Driven Radio Resource Management (EDRRM)
Event-Driven RRM is a feature that allows an access point that is in distress to
bypass normal RRM intervals and immediately change channels. A CleanAir
access point always monitors AirQuality (AQ), and reports on AQ in 15 second
intervals. AirQuality is a better metric than relying on normal Wi-Fi chip noise
measurements because AQ only reports on classified interference devices.
That makes AQ a reliable metric in that we know what is reported is not because
of Wi-Fi energy (and hence is not a transient normal spike).
Event-Driven RRM is a feature that allows an access point that is in distress to
bypass normal RRM intervals and immediately change channels. A CleanAir
access point always monitors AirQuality (AQ), and reports on AQ in 15 second
intervals. AirQuality is a better metric than relying on normal Wi-Fi chip noise
measurements because AQ only reports on classified interference devices.
That makes AQ a reliable metric in that we know what is reported is not because
of Wi-Fi energy (and hence is not a transient normal spike).
The key benefit of the EDRRM is very fast action time (30 seconds). If an inter-
ferer is operating on an active channel and is causing enough AQ degradation
that it triggers EDRRM, then no clients will be able to use that access point
or channel. The only thing to do is get the access point off that channel. The
EDRRM feature is not enabled by default and must be enabled. This process has
two steps: enable CleanAir and then enable Event-Driven RRM.
ferer is operating on an active channel and is causing enough AQ degradation
that it triggers EDRRM, then no clients will be able to use that access point
or channel. The only thing to do is get the access point off that channel. The
EDRRM feature is not enabled by default and must be enabled. This process has
two steps: enable CleanAir and then enable Event-Driven RRM.
Step 1:
Log into Cisco WCS.
Step 2:
Navigate to Configure > Controller Template Launch Pad.
Figure 38.
Controller Templates
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