Strange. Appeared to work well for us… seems over half our AP’s were not
holding the right secondary. I didn’t count, yesterday but a lot of them were
3.0.51 as well,.
I’d have to dig up our first TAC case to confirm but for us I reckon this
started with 8.0 from 7.6 where upon upgrade we had about 20 out of 300 3602i’s
failed after upgrade. All fixed in the end with persistent reboots ☺
(Cisco Controller) >show ap image all
Total number of APs.............................. 2109
Number of APs
Initiated....................................... 0
Downloading..................................... 0
Predownloading.................................. 0
Completed predownloading........................ 1080
Not Supported................................... 0
Failed to Predownload........................... 2
--
Jason Cook
Technology Services
The University of Adelaide, AUSTRALIA 5005
Ph : +61 8 8313 4800
From: The EDUCAUSE Wireless Issues Constituent Group Listserv
[mailto:[email protected]] On Behalf Of Lee H Badman
Sent: Tuesday, 21 March 2017 3:22 AM
To: [email protected]
Subject: Re: [WIRELESS-LAN] Cisco WLC code recommendations
Yes it does- every time.
Lee Badman | Network Architect
Adjunct Instructor | CWNE #200
Information Technology Services
206 Machinery Hall
120 Smith Drive
Syracuse, New York 13244
t 315.443.3003 f 315.443.4325 e [email protected]<mailto:[email protected]> w
its.syr.edu
SYRACUSE UNIVERSITY
syr.edu
From: The EDUCAUSE Wireless Issues Constituent Group Listserv
[mailto:[email protected]] On Behalf Of Jeffrey D. Sessler
Sent: Monday, March 20, 2017 10:37 AM
To:
[email protected]<mailto:[email protected]>
Subject: Re: [WIRELESS-LAN] Cisco WLC code recommendations
Lee, reboot that AP, then use the “download backup” in the WLC GUI. Does it
still fail?
Jeff
From:
"[email protected]<mailto:[email protected]>"
<[email protected]<mailto:[email protected]>>
on behalf of "[email protected]<mailto:[email protected]>"
<[email protected]<mailto:[email protected]>>
Reply-To:
"[email protected]<mailto:[email protected]>"
<[email protected]<mailto:[email protected]>>
Date: Monday, March 20, 2017 at 6:52 AM
To:
"[email protected]<mailto:[email protected]>"
<[email protected]<mailto:[email protected]>>
Subject: Re: [WIRELESS-LAN] Cisco WLC code recommendations
Not sure what I’m thinking, to be honest, Mike. Here’s the file system from a
healthy 3702 AP, where primary code is 8.2.141.0 and backup is 8.2.121.0:
haven422b-9088#dir flash:
Directory of flash:/
2 -rwx 287 Jan 1 1970 00:05:23 +00:00 info
3 -rwx 75 Mar 20 2017 13:35:56 +00:00 capwap-saved-config
38 drwx 576 Mar 1 1993 00:05:19 +00:00 ap3g2-rcvk9w8-mx
4 -rwx 65517 Dec 20 2016 09:47:23 +00:00 event.log
5 -rwx 0 Mar 1 1993 00:00:34 +00:00 config.txt
68 -rwx 266 Dec 20 2016 10:26:25 +00:00 env_vars
8 -rwx 12312 Mar 20 2017 13:36:48 +00:00 private-multiple-fs
80 drwx 0 Mar 1 1993 00:01:04 +00:00 configs
81 -rwx 75 Mar 20 2017 13:36:48 +00:00 capwap-saved-config-bak
82 -rwx 64 Dec 20 2016 09:47:15 +00:00 sensord_CSPRNG0
84 -rwx 64 Dec 20 2016 09:47:15 +00:00 sensord_CSPRNG1
10 drwx 2496 Dec 14 2016 13:29:02 +00:00 ap3g2-k9w8-mx.153-3.JC5
86 drwx 2496 Aug 31 2016 20:40:05 +00:00 ap3g2-k9w8-mx.153-3.JC3
40900608 bytes total (6049792 bytes free)
Now here’s the file system of a 3702 that sows proper primary image, but will
not allow a change to it’s backup software- which is stuck at 3.0.51.0.
cst499c-6433#dir flash:
Directory of flash:/
2 -rwx 280 Jan 1 1970 00:03:07 +00:00 info XX
3 -rwx 965 Nov 18 2015 17:29:22 +00:00 lwapp_mm_mwar_hash.cfg
33 drwx 512 Mar 1 1993 00:03:32 +00:00 ap3g2-rcvk9w8-mx XX
4 -rwx 57080 Dec 20 2016 10:43:35 +00:00 event.log XX
6 -rwx 64 Dec 20 2016 10:43:28 +00:00 sensord_CSPRNG0 XX
72 drwx 2496 Dec 20 2016 10:43:10 +00:00 ap3g2-k9w8-mx.153-3.JC5 XX
66 drwx 0 Mar 1 1993 00:01:01 +00:00 configs XX
67 -rwx 64 Dec 20 2016 10:43:28 +00:00 sensord_CSPRNG1 XX
68 -rwx 128203 Nov 11 2014 17:15:38 +00:00 event.r1
8 -rwx 75 Mar 20 2017 13:30:24 +00:00 capwap-saved-config XX
9 -rwx 1950 May 26 2016 11:40:29 +00:00
atf_override_config_slot0.txt
7 -rwx 0 May 31 2016 08:35:40 +00:00 config.txt XX
11 -rwx 1950 May 26 2016 11:40:29 +00:00
atf_override_config_slot1.txt
10 -rwx 75 Mar 20 2017 13:33:45 +00:00 capwap-saved-config-bak XX
5 -rwx 12312 Mar 20 2017 13:33:45 +00:00 private-multiple-fs XX
12 -rwx 266 Dec 20 2016 10:45:59 +00:00 env_vars XX
40900608 bytes total (19593728 bytes free)
This AP has lost it’s config in the past. Not sure what to do quite yet, and
leery of yet another protracted TAC case.
Lee Badman | Network Architect
Adjunct Instructor | CWNE #200
Information Technology Services
206 Machinery Hall
120 Smith Drive
Syracuse, New York 13244
t 315.443.3003 f 315.443.4325 e [email protected]<mailto:[email protected]> w
its.syr.edu
SYRACUSE UNIVERSITY
syr.edu
From: The EDUCAUSE Wireless Issues Constituent Group Listserv
[mailto:[email protected]] On Behalf Of Mike Atkins
Sent: Monday, March 20, 2017 9:31 AM
To:
[email protected]<mailto:[email protected]>
Subject: Re: [WIRELESS-LAN] Cisco WLC code recommendations
Lee,
Are you thinking it works for a while but stops, as in needing to fsck the
flash?
Mike Atkins
Network Engineer
Office of Information Technology
University of Notre Dame
From: The EDUCAUSE Wireless Issues Constituent Group Listserv
[mailto:[email protected]<mailto:[email protected]>]
On Behalf Of Lee H Badman
Sent: Monday, March 20, 2017 9:08 AM
To:
[email protected]<mailto:[email protected]>
Subject: Re: [WIRELESS-LAN] Cisco WLC code recommendations
This thread has me curious- I do see the occasional loss of AP name and config-
like the AP goes back to default. Looking at our thousands of APs, I see some
of the 7.1x backup code, but lots more of 3.0.51.0. I Tried to manually pull
down newer backup image, and the process fails so I’m guessing there’s
something amiss on the file system on these APs (have yet to look, anticipating
not enough room in flash or similar).
Lee Badman | Network Architect
Adjunct Instructor | CWNE #200
Information Technology Services
206 Machinery Hall
120 Smith Drive
Syracuse, New York 13244
t 315.443.3003 f 315.443.4325 e [email protected]<mailto:[email protected]> w
its.syr.edu<http://its.syr.edu>
SYRACUSE UNIVERSITY
syr.edu<http://syr.edu>
From: The EDUCAUSE Wireless Issues Constituent Group Listserv
[mailto:[email protected]] On Behalf Of Mike Atkins
Sent: Monday, March 20, 2017 6:45 AM
To:
[email protected]<mailto:[email protected]>
Subject: Re: [WIRELESS-LAN] Cisco WLC code recommendations
Same here, I’d say five in a three month period since upgrading from 8.2.121.0
to 8.2.141.0.
Mike Atkins
Network Engineer
Office of Information Technology
University of Notre Dame
From: The EDUCAUSE Wireless Issues Constituent Group Listserv
[mailto:[email protected]<mailto:[email protected]>]
On Behalf Of Jason Cook
Sent: Monday, March 20, 2017 2:18 AM
To:
[email protected]<mailto:[email protected]>
Subject: Re: [WIRELESS-LAN] Cisco WLC code recommendations
Seems similar to what we have seen, reboots may or may not fix it and has been
one of the few times where if at first you fail try the exact same thing over
and over…… Basically we successfully resolved all issues with shut/unshut of
ports sometimes up to 5x. Haven’t noticed the issue so much during operations
but some software upgrades AP’s were like that. Heaps of AP’s showing the wrong
backup image, thanks for the tip, will give it a try.
First noticed on 3602is’. Hasn’t been a major problem but noticable
--
Jason Cook
Technology Services
The University of Adelaide, AUSTRALIA 5005
Ph : +61 8 8313 4800
From: The EDUCAUSE Wireless Issues Constituent Group Listserv
[mailto:[email protected]] On Behalf Of Daniel Brisson
Sent: Friday, 17 March 2017 5:37 AM
To:
[email protected]<mailto:[email protected]>
Subject: Re: [WIRELESS-LAN] Cisco WLC code recommendations
Wanted to report that we also started seeing APs lose their hostname (and some
lose their entire minds) around the time we went to 8.2. I just got off the
phone with one of our techs who physically rebooted an AP and I’m now waiting
to see if it will come back. When the AP is in the “bad state”, it shows up as
a CDP neighbor on the switch as APxxxx.xxxx.xxxx, I can ping it, but ssh and
telnet sessions are refused.
I just looked and noticed a bunch of my APs show Backup SW version as 7.3.x,
where most of them correctly show a Primary of 8.2.151.0 and a Backup of
8.2.131.40.
I’m going to try the “Download Backup” to one of these APs to see if it fixes
that.
Thanks!
-dan
Dan Brisson
Network Engineer
University of Vermont
From: The EDUCAUSE Wireless Issues Constituent Group Listserv
[mailto:[email protected]] On Behalf Of Jeffrey D. Sessler
Sent: Thursday, March 16, 2017 1:54 PM
To:
[email protected]<mailto:[email protected]>
Subject: Re: [WIRELESS-LAN] Cisco WLC code recommendations
Ken,
For the AP’s that have lost their name and require a reboot. Would you check
the following for me?
On WLC or PI, what do the problematic WAPs report as their backup software
version? Typically, it should be the same as the “backup image” under
commands->config boot on the controller. If it’s instead an older version e.g.
7.1.x, let me know.
It’s circumstantial at this point, but I’ve noticed a pattern.
* AP’s that exhibit the problem tend to also fail AP Image Pre-download
(Download Primary) during code upgrades. If you make a note of these failures,
those WAPs are more likely to have mental issues.
* AP’s that exhibit the problem have very old (what shipped on it) code in
the backup location e.g. 7.x
* Issuing a AP Image Pre-download, Download Backup to these AP’s will
replace the old code in the backup location.
* Once the old backup image is updated, AP pre-download (Primary) now works
during code upgrades, and the AP’s seem to stop losing their minds.
Jeff
From:
"[email protected]<mailto:[email protected]>"
<[email protected]<mailto:[email protected]>>
on behalf of Ken LeCompte
<[email protected]<mailto:[email protected]>>
Reply-To:
"[email protected]<mailto:[email protected]>"
<[email protected]<mailto:[email protected]>>
Date: Monday, March 13, 2017 at 12:35 PM
To:
"[email protected]<mailto:[email protected]>"
<[email protected]<mailto:[email protected]>>
Subject: Re: [WIRELESS-LAN] Cisco WLC code recommendations
We are currently running a handful of 5508s with 8.0.133.0 and have been stable
for some time with around 400 APs and upwards of 1.5k clients. We also run a
half dozen 5520s with 8.2.141.0 and they have been running solid with around 1k
APs each and upwards of 10k clients. We do not however run anything but 2600,
3600, 2700 and 3700 APs.
The only issue I have seen that I don’t understand well yet is related to some
APs losing the minds during network interruptions. The APs will appear up from
CDP neighbor information, but will have lost their name and will not connect to
their configured primary or secondary controllers. A power cycle will often
recover the AP, but not always. I believe that issue started with 8.2.
Thank you.
Ken
--
Ken LeCompte - Consulting Telecommunications Analyst
Telecommunications Division
Office of Information Technology
Rutgers, The State University of New Jersey
Office ~ (848) 445-4823
On Mar 10, 2017, at 1:52 PM, Entwistle, Bruce
<[email protected]<mailto:[email protected]>> wrote:
We are currently running version 8.0.133.0 on our Cisco 5508 controllers, as
our current access points are primarily 3500s and 3600s. However we have
recently purchased a batch of 2802i access points whose minimum supported
version is 8.2.110.0. I was looking to the group for their recommendations on
a stable version of code which will support our new 2802i access points.
Thank you
Bruce Entwistle
Network Manager
University of Redlands
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