ExtremeCloud IQ
Controller provides the
availability feature to maintain service availability in the event of an outage. The
Availability Pair feature allows both AP and Client statistics to be available on both sides
of the High Availability configuration.
Before you begin:
Enable NTP on both ExtremeCloud IQ
Controller appliances. Go to
Administration > System > Network Time and select NTP.
On the primary ExtremeCloud IQ
Controller, go to
Administration > System > Availability and select Paired.
Configure the following
parameters:
Role
Primary
Peer IP Address
The data port IP address of the
second ExtremeCloud IQ
Controller.
Note
The Peer
IP address must refer to a physical topology of the peer appliance. It can be the
IP address of a physical port or the IP address of a Lagged interface. Configuring
availability against a service topology such as the IP address (L3) of a
Bridged@Controller appliance is not supported.
Auto AP Balancing
Select Active -
Passive
In a Availability Pair,
an AP establishes an active tunnel to one appliance and a backup tunnel to the
other appliance. The active tunnel is used to pass the client data over tunneled
topologies.
In an Active-Active
configuration, approximately half of the APs establish an active tunnel to the
primary appliance. The remaining APs establish an active tunnel to the backup
appliance, spreading the load across the Availability Pair.
In an Active-Passive
configuration, all APs establish an active tunnel to the primary appliance.
The secondary appliance is used for failover only.
In either configuration,
however, most parameters can be configured on either appliance in the
availability pair.
Select Save.
On the secondary ExtremeCloud IQ
Controller, select
Paired and
configure the following parameters:
Role
Backup
Pair IP Address
The IP address of the primary ExtremeCloud IQ
Controller.
Auto AP Balancing
Select Active-Passive
Select Save.
Go to Admin > Logs and look for the message Availability Link established with Peer
<ip
address>.
Note
It will take a few minutes for the
two ExtremeCloud IQ
Controller
configurations to synchronize.
To verify synchronization, view the
Network Health widget from the Diagnostics dashboard. Go to Tools > Diagnostics > Dashboard.
Or, add a network health widget to the Overview dashboard:
Go to Dashboard.
Select to
edit the dashboard.
Select Widgets.
Select System
and drag Network
Health onto the dashboard.
The Synchronization Status
is displayed as part of the Network Health widget.
to
edit the dashboard.
