Wireless Access

Reply
MVP
Posts: 1,111
Registered: ‎10-11-2011

Client aware not honored

In the last couple of days I've seen at least 2 APs change channels when they had clients connected.  Client aware is enabled for these APs.  Is there any reason why an AP would change channels even with this feature enabled?

=======================================
If a reply adequately addresses your issue, please click on the "Accept as Solution" and "Give Kudos" button so this information can benefit other users.
Guru Elite
Posts: 21,584
Registered: ‎03-29-2007

Re: Client aware not honored

Please know that ARM client aware is enabled per band, so you would babe to enable it in the rf profiles for both bands.


Colin Joseph
Aruba Customer Engineering

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

New Contributor
Posts: 4
Registered: ‎04-13-2009

Re: Client aware not honored

If this feature is enabled, the AP does not change channels if there is "active client traffic" on that AP.

so, If there is no client traffic, channel is change.

 

client traffic not equal client associate

MVP
Posts: 1,111
Registered: ‎10-11-2011

Re: Client aware not honored

cjoseph: both bands are using the same rf profile which has client aware enabled.

=======================================
If a reply adequately addresses your issue, please click on the "Accept as Solution" and "Give Kudos" button so this information can benefit other users.
Guru Elite
Posts: 21,584
Registered: ‎03-29-2007

Re: Client aware not honored

Do you know for sure that there was always a client associated?


Colin Joseph
Aruba Customer Engineering

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

MVP
Posts: 1,111
Registered: ‎10-11-2011

Re: Client aware not honored

Morisaki: While I'm sure that's true, it seems hard to believe that these clients on the AP were not talking at the time. There were several windows computers connected running fairly chatty programs - MS Lync and Outlook connected to Exchange.  Is there a timer that says if client traffic = 0 for X seconds/minutes then change channels?  If so, what is X and the measure of time?

=======================================
If a reply adequately addresses your issue, please click on the "Accept as Solution" and "Give Kudos" button so this information can benefit other users.
MVP
Posts: 1,111
Registered: ‎10-11-2011

Re: Client aware not honored


cjoseph wrote:
Do you know for sure that there was always a client associated?

The last time I saw an AP (w/ client associated) change channels was last Friday @ 4:30PM.  According to Airwave, this was the last AP the client associated to before he got disconnected from wifi.  I didn't see the client associate with any other AP until AFTER he got disconnected.  Provided that the information in Airwave is correct I am relatively confident that the client was active on this AP when the channel changed.

=======================================
If a reply adequately addresses your issue, please click on the "Accept as Solution" and "Give Kudos" button so this information can benefit other users.
New Contributor
Posts: 4
Registered: ‎04-13-2009

Re: Client aware not honored

Approximately 1 minute as far as I know.

 

Guru Elite
Posts: 21,584
Registered: ‎03-29-2007

Re: Client aware not honored


thecompnerd wrote:

cjoseph wrote:
Do you know for sure that there was always a client associated?

The last time I saw an AP (w/ client associated) change channels was last Friday @ 4:30PM.  According to Airwave, this was the last AP the client associated to before he got disconnected from wifi.  I didn't see the client associate with any other AP until AFTER he got disconnected.  Provided that the information in Airwave is correct I am relatively confident that the client was active on this AP when the channel changed.


Compnerd,

 

Let's troubleshoot the issue, instead of client-aware.  As far as we know, client aware works and the majority of clients, when the access point changes channel, are scanning to look for other access points.  This is common.

 

You would have the problem when access points change channel, if your access points change to a channel that are not supported by your clients...

 



Colin Joseph
Aruba Customer Engineering

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

MVP
Posts: 1,111
Registered: ‎10-11-2011

Re: Client aware not honored

I know the channel is supported by the client because the client is now associated to the same AP on the same channel it switched to on Friday.  Friday before the client got disconnected, .11an was on channel 40, then switched to 149.  The AP is still on channel 149.

 

Looking at the syslog output, I see that the channel changed at 16:29:40 and at 16:29:41 the following message event was logged for the client's MAC "WPA2 Key message 2 from station .... .... did not match the replay counter 01 vs 02".  Any chance the two are related and explains why the client got disconnected?

    
    
=======================================
If a reply adequately addresses your issue, please click on the "Accept as Solution" and "Give Kudos" button so this information can benefit other users.
Search Airheads
Showing results for 
Search instead for 
Did you mean: