| Mode |
A member can be in either an
Active or
Standby mode. All active member
can adopt access points. Standby members only adopt access
points when an active member has failed or sees an access
point not adopted by a controller or service platform. The
default cluster mode is Active |
| Name |
Define a name for the cluster name unique to its
configuration or profile support requirements. The name
cannot exceed 64 characters |
| Master Priority |
Set a priority value from 1 to 255, with the higher value
given higher priority. This configuration is the device‘s
priority to become the cluster master. In a cluster
environment, one device from the cluster is elected as the
cluster master. The master priority setting is the device‘s
priority to become cluster master. The active primary
controller has the higher priority. The default value is
128 |
| Force Configured State Delay |
Specify a delay interval between 3 to 1800 minutes. This
is the interval a standby cluster member waits before
releasing adopted APs and goes back to a monitoring mode
when a controller becomes active again after a failure. The
default interval is 5 minutes |
| Force Configured State |
Select to enable this cluster member to take over for an
active member if it were to fail. A standby controller or
service platform takes over APs adopted by the failed
member. If the failed cluster member were to come available
again, the active member starts a timer based on the Auto
Revert Delay interval. At the expiration of the Auto Revert
Delay, the standby member releases all adopted APs and goes
back to a monitoring mode. The Auto Revert Delay timer is
stopped and restarted if the active member goes down and
comes up during the Auto Revert Delay interval |
| Handle STP Convergence |
Select to enable Spanning Tree Protocol (STP) convergence
for the controller or service platform. In general, this
protocol is enabled in layer 2 networks to prevent network
looping. Spanning Tree is a network layer protocol that
ensures a loop-free topology in a mesh network of
inter-connected layer 2 cluster members. The spanning tree
protocol clears redundant connections and uses the least
costly path to maintain a connection between any two
controllers or service platforms in the network. If enabled,
the network forwards data only after STP convergence.
Enabling STP convergence delays the redundancy state machine
execution until the STP convergence is completed (the
standard protocol value for STP convergence is 50 seconds).
Delaying the state machine is important to load balance APs
at startup |
| Radius Counter DB Sync Time |
Specify a sync time from 1 to 1,440 minutes a RADIUS
counter database uses as its synchronization interval with
the dedicated NTP server resource. The default interval is 5
minutes |
