On 5/11/2014 10:47 pm, "McClintic, Thomas" <[email protected]> wrote:
>What you are referring to is called optimized roaming. > >http://www.cisco.com/c/en/us/td/docs/wireless/controller/8-0/configuration >-guide/b_cg80/b_cg80_chapter_010011001.html > >The AP will disassociate a client to force it to roam. In theory, if your >client is sticking to an AP then your application's performance is >already degraded and the disassociation/association is less of an impact. In my experience iOS devices will, after three or so disassociations in a short period of time, stop reconnecting entirely until the user manually selects an SSID again. So I¹d be very careful with this. Aruba¹s load balancing works in a similar fashion, or at least did in the PoC I did several years ago. For iOS a better method is what Ruckus APs do, they simply don¹t respond to probes if they don¹t want the device to associate. >It is based off the RSSI from the client, very interesting feature but >use with caution! This page (which was posted here recently) details the new RSSI-based roaming behaviour in iOS 8 on recent iOS devices: http://support.apple.com/en-us/HT6463 In short it triggers roaming on -70dB RSSI, uses 802.11k and 802.11r to speed up the process. It mentions there are other criteria in different environments, but annoyingly doesn¹t provide any references. -- James Andrewartha Network & Projects Engineer Christ Church Grammar School Claremont, Western Australia Ph. (08) 9442 1757 Mob. 0424 160 877 ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
