EWC: AP Accessibility Report does not show any values

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What conditions must be set that the AP Accessibility Report show any data ?
(Something to active or some special AP familiy)


A lot of my installations shows there no values (only zeros) or only 0,x values.


What is the benefit of this report ??  In which szenario can help me this report ?
(Why does Extreme create this report ?)

Manual is very poorly - no answer there regarding this question!
http://documentation.extremenetworks.com/wireless/ug/wireless/user_guide/c_ap_accessibility_report.s...
GTAC KB also.

Hopefully some here can help me.

Regards
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M.Nees, Embassador

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Posted 2 years ago

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Nathiya Munuswamy, Employee

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Hi Matthias,

Does this AP broadcasting any SSID? Is yes, is there any client connected to those AP's?



Regards,
Nathiya M
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M.Nees, Embassador

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Hi,

this APs are working productive!

I check this report at several installations - all productive - same results (zeros or 0,x values).


Regards
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Ronald Dvorak, Embassador

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Agree, something is off with the numbers.

Easy test, disass a bunch off clients on the same AP/radio.
I've done it with 4 clients and the counter peak current is .1 but it should be 4 in that case.
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Gareth Mitchell, Extreme Escalation Support Engineer

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Matthias/Ron

I see the same behaviour in my lab, I will find out about this and let you know.

Regarding the documentation, please leave feedback there as well.

-Gareth
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M.Nees, Embassador

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Hi Gareth,

thanks for taking care.

For tracking this issue - GTAC Case: 01295841

Regards
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Documentation Feedback is given ...
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Umut Aydin, Escalation Support Engineer

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Hi,

FFI

you have the check this screen more often and chekc if really nothing shown.

But here more info's.


Q:
Why does the “cur” value for tx dissasoc show 0.13, should it not be 4 in 1 sec? Equally the peak should stay at 4 until 4 in a sec is exceeded? Similar can be seen in the other columns, Assoc req rx, reassoc req rx etc.

Can we have some details on how these numbers are calculated, I also noted there is a delay probably caused by the controller needing to receive data back from the AP that might skew these counters a bit more.

A:
The stats are collected as simple numbers of assoc, disassoc, etc. from the ap once every 30 seconds and calculated accordingly. The 4 disassoc in 1 sec becomes 4 disassocs in 30 sec which is the 0.13 disassoc/sec current value reported.

Also the algorithm for running average is:
Current average = 0.2 * current value + 0.8 * last average

Old values are overwritten since we are reporting a current and average value on a 30s cycle.

If nothing happanes after 30s it could we that we see only zero's.

Regards

Umut Aydin