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New Contributor
Posts: 4
Registered: ‎04-27-2010

High latency client

Dears,

 

Would you please see the attachment and tell if this is normal? I am having high latency on this client and having issues while using AirDisplay application. Is this due to interference?

 

Appreciate your help.

 

MVP
Posts: 4,301
Registered: ‎07-20-2011

Re: High latency client

 

If you run the following command it could help you see if there's power/channel changes because of interference:

show ap arm history ap-name <apname>

 

2014-02-12 09_57_10-10.44.26.11_22 - Tera Term VT.png

 

If you look at the dashboard it could also give you a good overview2014-02-12 10_04_31-Dashboard.png

 

 

Thank you

Victor Fabian
Lead Mobility Engineer @ Integration Partners
AMFX | ACMX | ACDX | ACCX | CWAP | CWDP | CWNA
New Contributor
Posts: 4
Registered: ‎04-27-2010

Re: High latency client

Thanks for the reply.. Command output is

Guru Elite
Posts: 21,294
Registered: ‎03-29-2007

Re: High latency client


Tahir wrote:

Dears,

 

Would you please see the attachment and tell if this is normal? I am having high latency on this client and having issues while using AirDisplay application. Is this due to interference?

 

Appreciate your help.

 


That SNR indicates how well the access point sees the user.  If the user is stationary, it should be constant, in theory.   Things you can do to deal with that  (1) upgrade the drivers on that client (2) Enable Drop Broadcast and Multicast in your Virtual AP profile (3) See how many other users are on the radio of that access point to determine if shared connectivity is causing latency. 



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

New Contributor
Posts: 4
Registered: ‎04-27-2010

Re: High latency client

Yes the user is stationary. It is near to Access Point AP135. Why does SNR value go down in 1 minute and up in 2nd minutes as attached earlier? (1) I ll try to update the driver. (2) What imact will be on other users if i enable broadcast and multicast on VAP profile because this profile is shared by a group of APs. (3) Only 2 or 3 users on radio at that time.

 

Your support is highly appreciated.

 

Guru Elite
Posts: 21,294
Registered: ‎03-29-2007

Re: High latency client

  Before we consider making controller changes, is the user on the "a" or "b/g" band?  Either way, find out what access point he/she is connected to and run the following commands:

 

show ap debug radio-stats ap-name <ap-name> radio 0 advanced | include Resets,Busy,intvl,Fail,Retry,Changes
show ap debug radio-stats ap-name <ap-name> radio 1 advanced | include Resets,Busy,intvl,Fail,Retry,Changes

 

 

 



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

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