Administrator Guide

Remote AP
Operation
Setting
Forward Mode Setting
backup ESSID is only
up when the
controller is
unreachable.
Supports PSK
ESSID only.
SSID
configuration
stored in flash
on AP.
Provides a
backup SSID for
local access
only when the
controller is
unreachable.
Not supported Not supported Not supported
persistent ESSID is up
when the AP
contacts the
controller and
stays up if
connectivity is
disrupted with
the controller.
SSID
configuration
obtained from
the controller.
Designed for
802.1x SSIDs.
Same behavior
as standard,
described
below, except
the ESSID is up
if connectivity to
the controller is
lost.
Not supported Not supported Not supported
standard ESSID is up
only when
there is
connectivity
with the
controller.
SSID
configuration
obtained from
the controller.
Behaves like a
classic Dell
branch office
AP.
Provides a
bridged ESSID
that is
configured from
the controller
and stays up if
there is
controller
connectivity.
Split tunneling
mode
Classic Dell thin
AP operation
Decrypt tunnel
mode
Working in Fallback Mode
The fallback mode (also known as backup configuration) operates the remote AP if the master controller or the
configured primary and backup LMS are unreachable. The remote AP saves configuration information that
allows it to operate autonomously using one or more SSIDs in local bridging mode, while supporting open
association or encryption with PSKs. You can also use the backup configuration if you experience network
connectivity issues, such as the WAN link or the central data center becoming unavailable. With the backup
configuration, the remote site does not go down if the WAN link fails or the data center is unavailable.
You define the backup configuration in the virtual AP profile on the controller. The remote AP checks for
configuration updates each time it establishes a connection with the controller. If the remote AP detects a
change, it downloads the configuration changes.
Dell Networking W-Series ArubaOS 6.4.x | User Guide Remote Access Points | 736