Stable 9800 WLC Release

[kerstin-534]

What is the stable 9800 WLC Release ?

TAC recommended 17.3.4 with APSPs and SMUs causes 9130 APs crashing 20 times a day.

[Leo Laohoo]

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@kerstin-534 wrote:

TAC recommended 17.3.4 with APSPs and SMUs causes 9130 APs crashing 20 times a day.

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Any of the 9130 have a location field of >32 characters in length?

IMPORTANT:  For 9800-80, do not load ROMMON version 17.4.(1r).

[Rich R]

@Leo Laohoo what's the story with ROMMON 17.4(1r)?

We've got on an ongoing TAC case about those ROMMON updates being published without any release notes.  We won't touch them till they can tell us what changed and we're still waiting ...

Don't know what's gone wrong with Cisco release ops but there've been multiple IOS-XE releases with no release notes recently!

FYI: we've been running stable on 17.5.1 since it came out (we needed it for features) but only using it with 1832, 9105 & 1562 APs so far.  We're currently testing 17.6.1 and no problems found so far.

[Leo Laohoo]

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@Rich R wrote:

what's the story with ROMMON 17.4(1r)?

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I am not saying anything until the Bug IDs (plural) come out. 

Two-for-one Promo:  I think I found two bugs.  TAC has confirmed the first.  

[Scott Fella]

Leo is our forums bug collector:)

[Leo Laohoo]

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@Scott Fella wrote:

Leo is our forums bug collector:)

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I am not just a mere "bug collector" -- I am an un-official Cisco beta code tester!  (Because someone's gotta do it.)  

[Rich R]

I look forward to seeing those ...

[Leo Laohoo]

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@Rich R wrote:

what's the story with ROMMON 17.4(1r)?

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ROMMON version 17.4(1r) bugs I found are HERE.

[balaji.bandi]

I have test environment 17.3.3 working as expected., 17.3.4 causing issue, then TAC should give you the correct version and advise why it was crashing ?  Open a TAC case.

[kerstin-534]

9800-40 use ROM: 16.10(2r)

9310 APs just are renamed from the default name to some name in our naming scheme, no special location configured. Console logs some interesting things (traces) and reloads. 

[10/14/2021 09:38:28.7048] Unable to handle kernel paging request at virtual add ress ffffffc0beffff80
[10/14/2021 09:38:28.7048] pgd = ffffffc055b2e000
[10/14/2021 09:38:28.7948] [ffffffc0beffff80] *pgd=0000000000000000, *pud=000000 0000000000
[10/14/2021 09:38:28.9448] Internal error: Oops: 96000145 [#1] SMP

[balaji.bandi]

May you hitting with bug i guess : contact tac to investigate for you.

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvy03953?rfs=iqvred

[Scott Fella]

Like the others mentioned, you should follow up with TAC.  Everyones environment is different and it can just be a setting or maybe an issue with your hardware.  I test a lot of different code versions and not really had issues with crashing both on appliances and virtual.  Did you have this issue before upgrading or downgrading?  Have you tried a different code?

[kerstin-534]

yes, IOS-XE 17.3.3 was installed until last week. There were no crashed of AP9310.

[Scott Fella · Accepted solution]

Here is my opinion.... if I ever upgrade or downgrade and things are not working properly, revert back asap.  You never want to impact user experience or else it will never go away.  If you revert back and the issue goes away, then you have enough information to provide TAC.  They can take your configuration and test in their lab and like I mentioned, could just be a setting that is causing it or maybe not.  I don't always use the TAC recommended, but again that is me... if something is working, no need to touch it.  Its a pain to figure out whats broken, especially if it impacts users, as they always find a work around and then after months, might complain about it.  By then its too late.