Patent ID: 8824323

Claim:
A computer-implemented method comprising: detecting, by a first Access Point (AP) in a split-plane deployment, failure of a Wireless Control Plane (WCP) device; hiding an SSID of said first AP in beacons broadcast by said first AP; storing, in a cache of said first AP, information for existing Mobile Units (MUs) that dissociate after the detection of said failure of said WCP device; responding to probes from existing MUs; responding to probes from MUs having information in the cache, such that said first AP appears hidden from new MUs while being exposed to existing MUs; wherein when an existing MU roams to a neighbor AP then roams back to said first AP, said first AP is visible to said MU due to said MU receiving responses from probes to said first AP; and wherein said first AP is in a cellular redundancy arrangement wherein neighboring APs are managed by different wireless control plane devices than said first AP.