Users Guide

Table Of Contents
246| BranchController Config for Controllers Dell Networking W-Series ArubaOS 6.5.x| User Guide
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 202.
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
Health-Check Select the health-check option to use ping-probes to measure WAN availability
and latency on selected uplinks. Based upon the results of this health-check
information, the controller can continue to use its primary uplink, or failover to a
backup link.
WAN Select the WAN tab to define ping probe settings for the health-check feature
Probe Mode
Click the Probe Mode drop-down list and select ping or udp to enable ip probes
of the selected type.
Table 63: Branch Config Group WAN Setting