Most of this will be dependent upon the client device itself. I've got a number of mobile client devices in a glass production facility running on a WLC5520/IW3702 infrastructure, and my biggest issue is with the stickiness of the client device (Moxa). Even with "forced" roaming from the WLC, the client would not willingly roam unless a special feature of theirs "turbo-roaming" was enabled... and oh by the way, that turbo-roaming function is limited to only three channels. Obviously originally designed for a 2.4GHz deployment where you only have three non-overlapping channels to work with... but in my facility my design was using .11n modulation with 20MHz channels on 5GHz so I could spread out the APs and limit co-channel interference. And we discovered the Moxa client wouldn't aggressively roam to a new AP even down at -80 to -85dB RSSI... unless we had their "turbo-roaming" enabled, which of course defeats the purpose of using the additional channel space available at 5GHz. When I took all this back to Moxa support, their reply was essentially "that's how it is, if you want the code changed, submit a feature request and pay for it." So... the immediate fix was to limit the AP infrastructure to only using 3 channels. The long term fix is that as the Moxa radios break, they'll be replaced with something non-Moxa. And we won't ever be buying Moxa client devices for any of our other facilities. Their attitude = loss of customer.
So, word to the wise, look VERY closely at the capabilities AND limitations of the client devices. Test them thoroughly before issuing the purchase order. On Sat, Jul 28, 2018 at 2:32 AM, Mal via cisco-nsp < [email protected]> wrote: > _______________________________________________ > cisco-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ > > > ---------- Forwarded message ---------- > From: Mal <[email protected]> > To: <[email protected]> > Cc: > Bcc: > Date: Sat, 28 Jul 2018 18:02:44 +0930 > Subject: Mobile plant roaming speeds > Interested if anyone having success using 802.11n/ac in mine wifi > deployments with mobile clients (trucks/plant), roaming speeds in the > order of 15-30kmh ? > > Broad question, given the roaming responsibility of the client device. > > Mal > > _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
