Administrator Guide

Table Of Contents
Parameter Description
WAN Failure Survivability
Enable Auth-
Survivability
This parameter controls whether to use the Survival Server when no other
authentication servers in the server group are in-service.
This parameter also controls whether to store the user access credential in the
Survival Server when it is authenticated by an external RADIUS or LDAP server in the
server group. Authentication Survivability is enabled or disabled at each controller.
This parameter is disabled by default.
NOTE: Authentication Survivability will not activate if Authentication Server Dead Time
is configured as 0. For more information on configuring Authentication Server Dead
Time, see Configuring Authentication Timers on page 276.
Authentication Server
Certificate
This parameter allows you to view the name of the server certificate used by the local
Survival Server. The local Survival Server is provided with a default server certificate
from ArubaOS . The customer server certificate must be imported into the controller
first, and then you can assign the server certificate to the local Survival Server.
Cache Lifetime (hrs) This parameter specifies the lifetime in hours for the cached access credential in the
local Survival Server. When the specified cache-lifetime expires, the cached access
credential is deleted from the controller.
Configured authentication servers are put into the out-of-service (OOS) state when
authentication requests time out. The wireless controller picks the next server from
the server group when the previous server times out or fails.
When there are no more servers available from the server group, the local Survival
Server processes the authentication request. When the client is authenticated with the
local Survival Server, the previously stored Key Reply attributes are included in the
RADIUS response.
The Cache Lifetime range is from 1 to 72 hours. The default is 24 hours.
CA Certificate Assigned
for Auth Survivability
Select the certificate to be used for client authentication.
WANHealth Check
Probe Mode
Click the Probe Mode drop-down list and select ping to enable this feature.
Probe Interval (sec)
The Probe Interval field specifies the probe interval, in seconds. The WAN health-
check feature sends the number of probes defined by the Pocket Burst per Probe
parameter during each probe interval. To change the default interval of 10 seconds,
enter a new value into this field.
PacketBurst Per Probe
The Pocket Burst per Probe field specifies the number of probes to be sent during
the probe interval. To change the default value of 5 probes, enter a new value into this
field.
Probe Retries
The number of times the controller will attempt to resend a probe.
WAN Optimization
Table 66: Branch Config Group WAN Setting
Dell Networking W-Series ArubaOS 6.4.x | User Guide BranchController Config for Controllers | 318