I wouldn't advise anyone to be using 7.5 until some major work is done on it. We had to scale back to 7.4.110 and even then have been running into bugs (lockups, log spam - not fun).
TAC just provided us an engineering version 7.4.111.9 that promises to fix lots of issues - the version notes are 2 pages of bug fixes. Kitri Waterman -- Network Engineer (Wireless) University of Oregon On 11/20/13 8:24 AM, Vlade Ristevski wrote: > 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 >> <mailto: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 <tel:%28870%29%20680-4243> >> >> http://wireless.astate.edu >> >> >> >> >> >> *From:*The EDUCAUSE Wireless Issues Constituent Group Listserv >> [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU >> <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 >> <mailto: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/.
