topic Re: How to disable ap rolling upgrade in DNAC for N+1 in wlc 9800 in Wireless

How to disable ap rolling upgrade in DNAC for N+1 in wlc 9800

palani2010 — Sat, 19 Jul 2025 01:03:58 GMT

How to disable ap rolling upgrade in DNAC

Rolling AP Upgrade disable on Primary WLC on DNAC for N+1 deployment

palani2010 — Sat, 19 Jul 2025 04:36:54 GMT

Rolling AP Upgrade disable on Primary WLC on DNAC for N+1 deployment

Note - Rolling AP upgrade disabled on secondary WLC (We have downtime as we have many APs in our environment)

Re: How to disable ap rolling upgrade in DNAC for N+1 in wlc 9800

Mark Elsen — Sat, 19 Jul 2025 06:05:40 GMT

- @palani2010 Do you have a reason for that question?

Re: How to disable ap rolling upgrade in DNAC for N+1 in wlc 9800

balaji.bandi — Sat, 19 Jul 2025 07:24:36 GMT

From DNAC as i remember, default is 15% i do not remember you can set that none.

May be command Line you can do i guess one hit upgrade.

again as asked before, what is the reason to disable, the feature is good (but most of the time when you do ISSU upgrade) that reboot all AP anyway (that feature never worked for me as expected).

You can not have different version of code WLC and AP to work as expected.

Re: Rolling AP Upgrade disable on Primary WLC on DNAC for N+1 deployme

balaji.bandi — Sat, 19 Jul 2025 07:30:04 GMT

suggested method is from CLI :

https://www.cisco.com/c/en/us/support/docs/wireless/catalyst-9800-series-wireless-controllers/215550-hitless-software-upgrade-on-catalyst-980.html

https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/config-guide/b_wl_16_10_cg/n-1-hitless-rolling-ap-upgrade.html

Re: Rolling AP Upgrade disable on Primary WLC on DNAC for N+1 deployme

Rich R — Sat, 19 Jul 2025 21:36:38 GMT

This is a duplicate question - merging with the other question.

Re: How to disable ap rolling upgrade in DNAC for N+1 in wlc 9800

palani2010 — Sun, 20 Jul 2025 16:59:20 GMT

It takes so much of time and from secondary wlc connected APs are not moving to primary wlc APs completely

Re: How to disable ap rolling upgrade in DNAC for N+1 in wlc 9800

balaji.bandi — Sun, 20 Jul 2025 17:18:03 GMT

as per my testing it took for me 3 minutes to move to N+1 (compare to SSO HA)

check the fail-over times :

https://www.cisco.com/c/dam/en/us/td/docs/wireless/controller/9800/17-4/deployment-guide/c9800-n-plus-1-high-availability-wp.pdf

Re: How to disable ap rolling upgrade in DNAC for N+1 in wlc 9800

Mark Elsen — Sun, 20 Jul 2025 19:36:07 GMT

- @palani2010 How did you come to those conclusions ? What commands did you use ? What logs did you inspect ?