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WLC 5760 and 802.11r/CCKM support

Experts;

 

I have a couple of 5760 controllers running as MC/MA and I am planning to enable Layer 3 roaming between the two 5760 MC/MA controllers. On a 5508 controller running Air-IOS there is an option, "fast transition", for devices that support 802.11r, my understanding if a device doesn't support 802.11r "fast transition" should not be checked. 

I like to know if there is a similar command or option for 802.11r support on a 5760 controller and if the only configuration option to establish mobility between the 5760 controllers is that both controllers need to be in the same mobility group.

 

Thanks;

 

Juan

2 ACCEPTED SOLUTIONS

Accepted Solutions

Hi.Please check page 9, you

VIP Purple

Hi Juan,my understanding if a

Hi Juan,

my understanding if a device doesn't support 802.11r "fast transition" should not be checked

This is because certain clients that does not support 802.11r (like Mac OSX) won't like when SSID advertising 802.1X & 802.r FT (802.11r mixed mode) on the same SSID. Therefore they will not associate to that SSID. See this post as it listed 802.11r supported & unsupported devices/OS.

https://supportforums.cisco.com/discussion/12314591/8021r-and-fast-roaming

You need to have IOS-XE 3.6 onward to support 802.11r mix mode. (7.6 or 8.0 for AireOS codes)

Regarding config you will find that options (enabling & Over the DS tick box) under SSID  configuration (refer link provided by Daniel). If you want to go more into detail how these different options work please read below, I have used 3850 in these post, but config should be same for a 5760.

1. http://mrncciew.com/2014/09/06/cwsp-802-11r-ft-association/

2. http://mrncciew.com/2014/09/08/cwsp-802-11r-over-the-ds-ft/

3. http://mrncciew.com/2014/09/07/cwsp-802-11r-over-the-air-ft/

 

In your case both 5760 should be in same mobility group in order to MDID to be same which is required for 802.11r fast roaming.

Pls do not forget to rate our responses if that is useful

 

HTH

Rasika

 

6 REPLIES

Hi.Please check page 9, you

New Member

Thank you D.Ordoñez

Thank you D.Ordoñez

VIP Purple

Hi Juan,my understanding if a

Hi Juan,

my understanding if a device doesn't support 802.11r "fast transition" should not be checked

This is because certain clients that does not support 802.11r (like Mac OSX) won't like when SSID advertising 802.1X & 802.r FT (802.11r mixed mode) on the same SSID. Therefore they will not associate to that SSID. See this post as it listed 802.11r supported & unsupported devices/OS.

https://supportforums.cisco.com/discussion/12314591/8021r-and-fast-roaming

You need to have IOS-XE 3.6 onward to support 802.11r mix mode. (7.6 or 8.0 for AireOS codes)

Regarding config you will find that options (enabling & Over the DS tick box) under SSID  configuration (refer link provided by Daniel). If you want to go more into detail how these different options work please read below, I have used 3850 in these post, but config should be same for a 5760.

1. http://mrncciew.com/2014/09/06/cwsp-802-11r-ft-association/

2. http://mrncciew.com/2014/09/08/cwsp-802-11r-over-the-ds-ft/

3. http://mrncciew.com/2014/09/07/cwsp-802-11r-over-the-air-ft/

 

In your case both 5760 should be in same mobility group in order to MDID to be same which is required for 802.11r fast roaming.

Pls do not forget to rate our responses if that is useful

 

HTH

Rasika

 

New Member

Hello Rasika;Looking at the

Hello Rasika;

Looking at the Cisco Web Site the latest version for the 5760 is IOS-XE 3.3SE, you indicated 802.11r mix mode support is available on IOS-XE 3.6 onward. Is IOS-XE 3.6 a lower version than 3.3SE or 3.6 is not available yet?

 

Thanks;

 

Juan 

 

VIP Purple

Hi Juan,Cisco released a

Hi Juan,

Cisco released a maintenance release recently for 3.3.x which is 3.3.4SE & that's why this appear in top.

But 3.6E is having lot other features compare to 3.3.x & is the latest major released code.(this was released in late June 2014)

Both 3.3 & 3.6 have listed under latest codes as those are two different code versions.

 

HTH

Rasika

**** Pls rate all useful responses ****

New Member

Thank you Rasika for your

Thank you Rasika for your prompt answer and as always good you provide good information.

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