Is C9800-CL Compatible with Vmware ESXi 8.0?

Thelmo · ‎04-25-2023

C9800-CL Datasheet mention compatibility with ESXi 7 but not higher that it.

Our customer adcquire this Controller and last week the DC Team just jump to ESXi 8.0.

marce1000 · ‎04-25-2023

- It won't be compatible then , officially , it may work, but if there is no confirmation for that platform in official documents then operational behavior can not be guaranteed as correct in all circumstances , which is important to consider ,

M.

-- Each morning when I wake up and look into the mirror I always say ' Why am I so brilliant ? '
When the mirror will then always repond to me with ' The only thing that exceeds your brilliance is your beauty! '

Rich R · ‎04-28-2023

It's specific to the IOS version - you must refer to the release notes for the version of IOS-XE you're running. But agreed that it looks like 7.0 is the latest they support as even 17.11 still only supports up to 7.0:
https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/17-11/release-notes/rn-17-11-9800.html#Cisco_Concept.dita_c9f5f62c-3813-4ab2-9365-71d583c3a462

So you'll have to keep that machine on 7.0 until Cisco release a version which supports 8.0

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TAC recommended codes for AireOS WLC's and TAC recommended codes for 9800 WLC's
Best Practices for AireOS WLC's, Best Practices for 9800 WLC's and Cisco Wireless compatibility matrix
Check your 9800 WLC config with Wireless Config Analyzer using "show tech wireless" output or "config paging disable" then "show run-config" output on AireOS and use Wireless Debug Analyzer to analyze your WLC client debugs
Field Notice: FN63942 APs and WLCs Fail to Create CAPWAP Connections Due to Certificate Expiration
Field Notice: FN72424 Later Versions of WiFi 6 APs Fail to Join WLC - Software Upgrade Required
Field Notice: FN72524 IOS APs stuck in downloading state after 4 Dec 2022 due to Certificate Expired
- Fixed in 8.10.196.0, latest 9800 releases, 8.5.182.12 (8.5.182.13 for 3504) and 8.5.182.109 (IRCM, 8.5.182.111 for 3504)
Field Notice: FN70479 AP Fails to Join or Joins with 1 Radio due to Country Mismatch, RMA needed
How to avoid boot loop due to corrupted image on Wave 2 and Catalyst 11ax Access Points (CSCvx32806)
Field Notice: FN74035 - Wave2 APs DFS May Not Detect Radar After Channel Availability Check Time
Leo's list of bugs affecting 2800/3800/4800/1560 APs
Default AP console baud rate from 17.12.x is 115200 - introduced by CSCwe88390

Scott Fella · ‎04-29-2023

You should be fine with anything higher as you can specify the compatibility versions in ESXi. Why not just spin one up and test it?

-Scott
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Bernard Slabberts · ‎07-12-2024

Hi Thelmo,

The C9800-CL is officially supported on VMware ESXi 8.0, please see release notes for 17.12.x code.

https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/17-12/release-notes/rn-17-12-9800.html#Cisco_Concept.dita_c9f5f62c-3813-4ab2-9365-71d583c3a462

Finn Rud Laursen · ‎03-26-2025

Hi.
From release note 17.12.5: - VMware ESXi vCenter 6.0, 6.5, 6.7, 7.0, and 8.0
From release note 17.15.2: - VMware ESXi vCenter 6.5, 6.7, 7.0, and 8.0