Hi All, We have been advised by Cisco to not go to 7.6.100.0 code as there are issues with it (see below for bug lists provided to us). According to the TAC engineer, the issues are affecting large wireless deployments. We are awaiting response from Cisco regarding the timeframe for the next release which will have the fixes for these issues.
https://tools.cisco.com/bugsearch/bug/CSCum71199/?reffering_site=dumpcr https://tools.cisco.com/bugsearch/bug/CSCum49200/?reffering_site=dumpcr https://tools.cisco.com/bugsearch/bug/CSCuj17283/?reffering_site=dumpcr https://tools.cisco.com/bugsearch/bug/CSCum68676/?reffering_site=dumpcr We have 7.6.100.0 running on our test WiSM2 WLC and haven't got any client connectivity issues during the limited testing we were able to do with non-3700 APs. We have 2,250 3702APs waiting for 7.6 deployment before they can be installed. Management not happy. We previously had client connectivity issues on 7.5.102.0 which were supposed to be fixed by going to 7.6 code. Regards -- Jithin Kesavan Senior Network Engineer UNSW IT THE UNIVERSITY OF NEW SOUTH WALES UNSW SYDNEY NSW 2052 AUSTRALIA Phone: +61 2 9385 1154 Mobile: 040 171 3334 Email: j.kesa...@unsw.edu.au<mailto:j.kesa...@unsw.edu.au> Website: http://www.it.unsw.edu.au<http://www.it.unsw.edu.au/> CRICOS Provider Code 000098G From: Danny Eaton <dannyea...@rice.edu<mailto:dannyea...@rice.edu>> Organization: Rice University Reply-To: "dannyea...@rice.edu<mailto:dannyea...@rice.edu>" <dannyea...@rice.edu<mailto:dannyea...@rice.edu>> Date: Tuesday, 25 February 2014 1:12 PM To: "WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>" <WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>> Subject: Re: [WIRELESS-LAN] SV: [WIRELESS-LAN] SV: [WIRELESS-LAN] SV: 7.6.100 bugs- looking for input We upgraded to WiSM-2’s and 7.6.100.0 over Christmas break as well – and many of my students (both Windows and Apple machines) are reporting intermittent connectivity, slow browsing, and just generally “poor” wireless connectivity. It’s not in a building with the 3702’s (only have one building with those at this point), but we do have the 3502’s in the residence dorms/colleges, and 1142’s in academic buildings. I’m hoping this is an issue with the code, because only that changed with the upgrade to the WiSM-2’s. From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Lee H Badman Sent: Monday, February 24, 2014 8:03 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> Subject: Re: [WIRELESS-LAN] SV: [WIRELESS-LAN] SV: [WIRELESS-LAN] SV: 7.6.100 bugs- looking for input Thanks for sharing, Mike. With so much riding on the WLAN these days, I hope this sort of thing becomes less of an occurrence. It's all about perception and grasping the gravity that code issues have on customer WLANs, and it has to get better. It just has to. Good luck with yours... Lee H. Badman Network Architect/Wireless TME ITS, Syracuse University 315.443.3003 ________________________________ From: The EDUCAUSE Wireless Issues Constituent Group Listserv <WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>> on behalf of Mike Albano <mike.alb...@unlv.edu<mailto:mike.alb...@unlv.edu>> Sent: Monday, February 24, 2014 8:47 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> Subject: Re: [WIRELESS-LAN] SV: [WIRELESS-LAN] SV: [WIRELESS-LAN] SV: 7.6.100 bugs- looking for input Lee, I've read the support-forums thread, and am in a similar situation. I've been running 7.6.100.0 since holiday break, and based on the bugs in the thread, I'm inclined to request access to the engr. build "just in case". My network is not as large as yours (~8500 simultaneous & 25K unique devices/day) but it's hard to read something like "Broadcom chipsets may have trouble associating or may experience traffic hangs..." and not assume I have users hitting this. I have not heard complaints, but that doesn't mean much. My need for 7.6 (more specifically 7.5+) is features. I don't anticipate having 3700's for about another 60 days. In conclusion, I've given you no useful information but will update if I do ever get a direction on that MR code ( I'll actually be at the EBC tomorrow, so will try to corner someone into getting a sense of severity on these 7.6 bugs). Mike Albano On Mon, Feb 24, 2014 at 8:06 AM, Anders Nilsson <anders.nils...@adm.umu.se<mailto:anders.nils...@adm.umu.se>> wrote: And he’s Spanish! ;) Från: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>] För Lee H Badman Skickat: den 24 februari 2014 16:15 Till: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> Ämne: Re: [WIRELESS-LAN] SV: [WIRELESS-LAN] SV: 7.6.100 bugs- looking for input Name dropper! From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Anders Nilsson Sent: Monday, February 24, 2014 10:09 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> Subject: [WIRELESS-LAN] SV: [WIRELESS-LAN] SV: 7.6.100 bugs- looking for input Just talk to Javier Contreras who wrote the 7.6MR1 beta note. He’s da man. :) /Anders Från: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] För Lee H Badman Skickat: den 24 februari 2014 16:06 Till: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> Ämne: Re: [WIRELESS-LAN] SV: 7.6.100 bugs- looking for input Thanks, Anders- we have yet to deploy 3700s, but will be within a couple of weeks. Hence the desire to get ahead of this sort of thing. I’m waiting on the latest clarification, hopefully from deep inside the BU, but there is great value in knowing where others are on the same journey. -Lee From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Anders Nilsson Sent: Monday, February 24, 2014 10:02 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> Subject: [WIRELESS-LAN] SV: 7.6.100 bugs- looking for input Sounds like you’re hitting this one: CSCuj17283<https://cdetsng.cisco.com/webui/#view=CSCuj17283> Macbook Air, Macbook with 802.11ac chipset, and Intel 6300 v15.9.2.1 chipets are reported to see dropped packets and odd ARP behaviors when using Cisco 3700 Series access point with WPA2 security and Centrally switched data (Local mode or Flex). Behavior varies, number of associated clients, device hosting the default gateway of the client access VLAN, and/or L3 path beyond L2 DS. Supposed to be fixed in version 7.6.100.4 and available if you kneel before the mighty TAC. There also rumors about a beta of 7.6MR1 https://supportforums.cisco.com/docs/DOC-40402 that have this fixed. This message will self-destruct in 10 seconds, good luck Lee…. ;) Cheers Anders Från: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] För Lee H Badman Skickat: den 24 februari 2014 15:48 Till: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> Ämne: [WIRELESS-LAN] 7.6.100 bugs- looking for input Turning to my Cisco WLAN colleagues on the list for their input. We’re running 7.6.100, since the holiday break after doing fairly extensive testing and getting the input of other large environments that ran it in beta. We’ve done well on this code to date, but are about to roll out 3700s in a new, very high profile building, and so I’m looking closely at every bit of data I can get on potential problems looming. Please see https://supportforums.cisco.com/message/4173717 thread, and in particular the second half of the discussion. There are three potentially bad bugs described, and also the mention of a new engineering build available (seemingly by request) to address these bugs and a few more. Is anyone either hitting these bugs, or also doing the “I’m rolling out 3700s and scared of my code” dance? Any other insight on the topic that maybe others would benefit from? Any other guidance coming from Cisco for your particular situations? Thanks very much, Lee Badman ********** 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/. ********** 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/. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. !DSPAM:911,530bf9f6233832000621495! ********** 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/.
