Re: [WIRELESS-LAN] WLC 7.5 & Prime 1.4

[mike . albano]

Seeing this as well on our captive-portal SSID. Will be attempting the work-around shortly.

MIke

UNLV

-----The EDUCAUSE Wireless Issues Constituent Group Listserv <WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> wrote: -----

To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
From: Vlade Ristevski <vrist...@ramapo.edu>
Sent by: The EDUCAUSE Wireless Issues Constituent Group Listserv <WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>
Date: 11/20/2013 08:24AM
Subject: Re: [WIRELESS-LAN] WLC 7.5 & Prime 1.4

That bug hit us hard since we depend on webauth.

We upgraded to a more recent 7.5. code but then hit another bug:

https://tools.cisco.com/bugsearch/bug/CSCuj59101

"On rare occasions, the Cisco Aironet series Access Point crashes and reboots due to corruption of a certain data-structure used to optimize 802.11n AMPDU aggregation for better throughput.
A decode of the crash traceback will usually reference functions with the names "avl" or "wavl"; for example:
[0x005CE9CC] dot11_11n_aggr_pkt_time_compare(0x5ce980)+0x4c
[0x008FD2EC] avl_get_next(0x8fd2bc)+0x30
[0x008FEB58] wavl_get_next(0x8feac8)+0x90
[0x0060783C] disc_tx_11n_aggr_timer_send(0x6075c0)+0x27c
Conditions:
This bug will only occur with AP images from Cisco Unified WLC software releases 7.2.x.x, 7.3.x.x, 7.4.x.x, and 7.5.x.x -- or the corresponding Autonomous or Converged Access AP images."


I wouldn't say it only happened on "RARE OCCASIONS" either.

The only solution was for us to go back down to 7.4 code. I don't recall running into so many bugs with our WLC 4404's.

On 11/20/2013 10:39 AM, Hurt,Trenton W. wrote:

Unable to access 5508 controller GUI with Google Chrome after upgrading to 7.5.102.0 - "SSL Connection Error"

https://supportforums.cisco.com/docs/DOC-38027

 

 

 

From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Alan Nord
Sent: Monday, November 18, 2013 9:13 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] WLC 7.5 & Prime 1.4

 

Any issues with 7.5 and Prime 1.3?  I suppose it just lacks support of new features and is probably why they list as not compatible.

 

I upgraded to 7.4.111.8 last week and things have been stable.  Does not resolve the original problem, but fixes alot of others.  I want to avoid Prime 1.4 if at all possible, and I don't have plans to deploy AC anytime soon.

 

 

On Fri, Nov 15, 2013 at 4:59 PM, Garret Peirce <pei...@maine.edu> wrote:

I'm using 7.5 on some 8510s w/PI1.3 , mainly due to CSCty84682 - dropping mcast packets (ex. bonjour announcements).

As a formerly discussed topic, I'm finding browser support is growing evermore painful.
I was holding off on PI 1.4 hoping not to get myself wedged into a specific train, but I'm aiming to move to it for improved browser support alone.  

I could inquire with Cisco but, I'm here...
Anyone have current info on the WLC/PI roadmap?  Any sense if 2.0 will merge into 2.1 or will they remain separate trains?

We’re using that combo. Seems to be quite a bit more stable than 7.4.

 

Regards,

 

Eric Barnett

Senior Network Engineer/Wireless Administrator

Information and Technology Services

Arkansas State University

(870) 680-4243

http://wireless.astate.edu

 

 

From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Alan Nord
Sent: Friday, November 08, 2013 8:10 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: [WIRELESS-LAN] WLC 7.5 & Prime 1.4

 

Anyone using the WLC 7.5 and PI 1.4 combination?  If so, has it been stable?  I have a case open with Cisco regarding client association and roaming issues and the solution is to upgrade to 7.5 code to fix the bug.  I am currently running version 7.2 on two 5508 controllers with mainly 1142, 3502 and 3602 APs.

 

Anything to be aware of when upgrading from 7.2 to 7.5?

 

Thanks,

Alan

 

--

Alan Nord, CCNA

Infrastructure Manager
Information Technology Services
Macalester College
1600 Grand Avenue
St. Paul, MN 55105

********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.

********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.

********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.

 

--

Alan Nord, CCNA

Infrastructure Manager
Information Technology Services
Macalester College
1600 Grand Avenue
St. Paul, MN 55105

********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.

********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.

--
Vlade Ristevski
Network Manager
IT Services
Ramapo College
(201)-684-6854
********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.

********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.