with vWLC 8.0.x and 8.1.131 WLCCA roaming prediction show good roaming between AP in both 2.4 and 5 Ghz (green)
I now have updated vWLC to 8.5.120 (without any change in AP position, channel and operating power) and roaming prediction works as for previous firmware release for 2.4 Ghz but I have Always red alert for 5 Ghz band (Not a neighbor).
Is it a bug of WLCCA or I miss something ?
Thanks a lot
Solved! Go to Solution.
Hi Scott, thanks for your reply.
I tried 8.2 , 8.3 and 8.4 with same issue. This because I need to add 2 more AP 2800 series not supported in 8.0.
I'm doing some test out of working days (it's easy to go back to the previous version with vmware snapshot) and actualy I have voice roaming issue in 5GHz band with 7925 phone.
the issue flags all 2700 amd 2600 existing AP and only for 5GHz frequency.
I have an SSID for Cisco 7925G voice devices on 802.11a that work very well with 8.0 and 8.1 Virtual Wireless Controller.
Upgrade to 8.2, 8.3 8.4 or 8.5 destroys roaming only on 802.11a band.
WLCCA help me to see that there is no roaming between AP.
So there will be some configuration issue upgrading from 8.0 (or 8.1) to firmware release that support 2800 AP
thanks for your suggestions,
I've created a new VM with 8.2.166 , configured as for 8.0 production VM (same parameters, same WLAN etc) and also I've create an upgrade of running VM (I can switch easy with VM snapshot out of working hours to do test tasks).
I only usemix of 2600 and 2700, not the 2 new 2800 AP.
What I can see is that 802.11a works very well with 8.0 (good voice coverage on filed , green voice roaming prediction in WLCCA and also on prime 3.3 heatmap).
When I switch to 8.2 (upgraded VM or new VM) I have a slight roaming performance on 802.11a, still same heatmap on prime but WLCCA show me no roaming prediction (between near AP "not a neighbor" and red flag).
With 8.0 roaming prediction is green.
So my ask, to better understand what happens from 8.0 and 8.2, is to better know what config parameters WLCCA use to roaming prediction.
I checked side by side and there are no differences between the two configurations.
With show 802.11a the only added parameters in 8.2 are :
A-MSDU Max Subframes ........................ 3
A-MSDU MAX Length ........................... 8k
not present in 8.0.
as discussed over email:
If using the roaming prediction tool, load only the file you are interested, and select the Aps from there.
Tested with 8.2 file, it works