Show and debug command to troubleshoot roaming

[Difan Zhao]

Hi experts,

I have complain that in some areas the voip phones sound choppy. I checked the signal strength in that area and it was actually too many APs with acceptable signal strength. I think it might be that the phone keeps roaming among the APs which caused the packets to drop. I am trying to prove it so they can get the phone vendor to change the roaming threshold. Is there debug and show command I can use to check for the roamin history of a client (with specific MAC address)? The debug client <MAC> doesn't show the roaming activity.

The controller is WISM2 running 7.2.110.0 code

Thanks,

[George Stefanick]

Also make sure you rule out a bad badge. Ive done a ton of troubleshooting early on only to find out there was a few bad badges due to them being dropped. Always always always try and reproduce the problem and see it for yourself. Anything else, its just hear say ..

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"Satisfaction does not come from knowing the solution, it comes from knowing why." - Rosalind Franklin
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‎"I'm in a serious relationship with my Wi-Fi. You could say we have a connection."

[Difan Zhao]

I will play with the "survey mode" next week. Sounds interesting...

I actually don't talk to Vocera directly. I usually go through customer. But I did talk to Thomas before. Do you know him?

Omnipeek and Airmagnet aren't free are they...? Do you think that they are useful for troubleshooting? If so I can talk to my boss to see if we can get a couple of licenses.

I hope it was the bad badge however it was not...

Thanks for your help!

[George Stefanick]

No unfortunately they aren't free. They are expensive tools and they require training or to be used in experience hands. Just having the tool is half of the equation. You could get a 30 day demo ..

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[Difan Zhao]

Thanks Scott. Today I tried again and the "debug client" did show the roaming this time... I guess either I did something wrong with the command the last time or the client didn't roam at all...

[Surendra BG · Accepted solution]

Hi,

If u hv a wcs, ncs, pi then plz run the TSM n this gives wat ever ur looking for.. Please configure the phone to scan only for 8 channels instead of 24 channels n then make sure power levels on the ap is either 3 or 4

Regards
Surendra

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[Surendra BG]

Hi,

How on this earth do i know that u r using Vocera badges it was not mentioned in the problem descrition so i gave my 2 cents!!

Am taking it back now

Regards

Surendra

[Difan Zhao]

Sorry should have mentioned in my original post... Thanks for your help though