Load Balancing Of Aps And Wsps - Avaya WLAN 8100 Series Reference

3. Verify the trap notification message using the following command:

Load Balancing of APs and WSPs

You perform load balancing of Access Points (APs) and Wireless Switching Points (WSPs) in
a mobility domain to allow even distribution of traffic load to achieve greater throughput per
device and better traffic localization. Load Balancing of WSPs are only applicable to Unified
Access deployments.
For more information on AP and WSP load balancing, see Avaya WLAN 8100
Fundamentals (NN47251–102).
The following sections describe the mechanisms of load balancing for APs and WSPs.
Note:
Access Point (AP) load balancing can take up to 5 minutes to complete. It is also dependent
on your network topology.
Manual
Manual load balancing provides the greatest administrative control and always overrides any
other load balancing mechanisms.
When you configure an AP or a WSP in the Domain AP or WSP database respectively, you
also provide a preferred and an alternate controller (WC or WCP) IP address. This is done for
manual load balancing of the AP or WSP.
When an AP or WSP joins the domain, it is assigned to the preferred controller if available and
not loaded to its maximum capacity. If the controller is not available or is loaded to its maximum
capacity, the alternate controller is assigned to the AP or WSP. If both the preferred and
alternate controllers are loaded to their maximum capacity or are unavailable, the AP or WSP
is assigned to the controller based on the configured load balancing metric.
Automatic
If a situation arises where both the preferred and alternate controllers are loaded to their
maximum capacity or are unavailable, or manual load balancing is not configured, an automatic
assignment of the AP or WSP load to the controller is done based on the configured automatic
load-balancing metric.
The WLAN 8100 solution supports the following two load balancing metrics:
• Least Load:
This method of load balancing assigns the AP or WSP to a controller that has least number
of APs/WSPs currently connected to it. Least load is always used as a fall back metric
when other metrics cannot uniquely determine a controller for an AP or WSP. This metric
achieves an even balancing of AP/WSP load across all controllers in the domain.
Avaya WLAN 8100 CLI Reference
WC8180(config)#show logging wireless-controller volatile
ACLI reference for the Wireless LAN (WLAN) 8100
August 2013 119