Wifi ap handover

BSS allows a devices to associate with APs more quickly. Coupled with Handoff Assist. If the RSSI for a specific client falls below "low-rssi-threshold" and continues to fall for the "rssi-falloff-wait-time", then the AP will send a de-auth to the client.

The de-auth is meant to kick the client away from the current AP and get it to re-authenticate to a nearby AP. This will have the effect of helping a client handover between 2 APs. BUT Big But , if the client gets de-authed and takes a while to re-authenticate if it even does re-authenticate automatically after a de-auth , then this will have the effect of destroying communication instead of helping it -- mostly found with legacy clients.

Remove Lower Transmit Rates. Removing lower transmit rates is a way to promote better roaming, BUT not all clients respond well, or even respond to it. The practice is that the basic rates are a subset of the transmit rates. If you only want to allow speeds 9 and up, you would select only the transmit rates of 9 and up, and the basic rates of 9 and If a legacy client expects the rates of 1 and 2 it will not connect.

Local Probe Threshold. Local probe Threshold prevents a client from connecting to an AP with a too low a signal - helps more with initial connection than roaming. The local probe threshold parameter is not supposed to force clients to roam as soon as they pass near an access point with a good signal, but rather to NOT hold on to an access point with a weak signal avoiding sticky clients. PMK Caching Defined by If a station has authenticated to an AP, roams away from that AP, and comes back, it does not need to perform a full authentication exchange.

Only the Is a similar technique to PMK, but not defined by An Aruba deployment with multiple APs under the control of a single controller is one such example.

Using OKC, a station roaming to any AP in the network will not have to complete a full authentication exchange, but will instead just perform the 4-way handshake to establish transient encryption keys. Implementation and Configuration. The goal is to show how the handover takes place between the two APs, including beacons, active scanning, the authentication and association processes. In The hosts can find an access point in two ways. One is active scanning, where hosts transmit Probe Request frames, and the APs reply to them with Probe Response frames.

The other is passive scanning, where hosts locate APs by receiving their broadcast Beacon frames. APs emit Beacon frames periodically, announcing their presence unless configured to be hidden. In this simulation, the host uses active scanning. When the host has discovered the available APs, it decides which one to join. When the host wants to join an AP, it initiates an authentication frame exchange with the AP. Following successful authentication, the host starts the association frame exchange.

During the association process, they agree on the encryption type and other When the association is complete, data exchange can begin.

The network contains two APs placed meters apart, and a wireless host. The two access points are set to use channels 2 and 3. The host is configured to actively scan channels 0 through 4. Basically, the relationship of device to AP is really managed by the device. It is up to the device to device what it will connect to and stay connected to. It is then after disconnect the device will look for a younger, stronger AP to cling to until it also goes bye bye.

This is by design of the But this is the fundamental problem, allowing the client device to make decisions upon disconnect. One technique I read about is wifi virtualization. Basically, you can set minimum requirements for connection that could prematurely force disconnection. In the Asus software, its represented by db levels. I read it could also be for throughput rates. It still results in a disconnect, but it will mean the transition between APs will occur sooner.

Juan, do you need a central controller for that? This does use a central controller, but only for initial setup. If the central controller is gone, the AP keeps it's config file and continues to function. If you keep it running, it has great logs and pretty graphs :. What kind of pricing did you get for Ubiquity I'm gonna have to find a client to try this out. I am also in the same situation looking for AP that supports seamless roaming.

I am currently looking at ubiquiti also. We use Ubiquiti for our office and recommend it to all our clients. The controller is easy to work with and is free. We were testing this in a high capacity mesh around 5kk device range.

But I would suggest Ubiquiti. Meraki in my experience is the best of the best and I installed wifi networks for Marriot, Holiday Inn, and a few lower named hotels. For a rm hotel I installed 3 Meraki aps per floor total of 12 and yes they are expensive.