Balancing spectrum utilization rather than number of clients per AP reduces co-channel interference and increases performance. Hence spectrum load balancing is based on the concept of creating virtual RF neighborhoods among access points for efficient client association management. Spectrum Load Balancing (SLB) divides APs in a cluster into several logical virtual RF neighborhood domains and these AP s in the same RF neighborhood share the same clients. For example, in the below figure, there are 15 Instant APs in a cluster. Take AP1, AP2 and AP3, each of them has a different virtual RF neighborhood The virtual RF neighborhoods are automatically created via ARM scanning, client density updates and neighbor exchanges. This ensures that APs that are far away from the clients perspective do not belong to the virtual RF neighborhood, to avoid redirecting clients to a far away AP that is on a lightly loaded channel. APs in the virtual RF neighborhood participate in client load balanci
http://www.ebrahma.com/2013/09/aruba-networks-understanding-virtual-rf-neighbor/Labels: eBrahma