ap service pack pre-download

[atifali.zaidi1]

can we pre-download ap service pack to the ap's , i dont think so.

i am upgrading my regional controllers in Dc1 and Dc2 ,  currently my ap's are on backup wlc running 17.12.4 and the primary also running 17.12.4 .  now i need to install ap service pack without having any downtime so i tried doing a pre-download of ap service pack using the below commands , but nothing happens.   i came across cisco articles which advises to have mobility tunnels but apart from that is there anyway ?

wireless profile flex xxx

predownload 

!

ap image predownload site-tag start 

[Leo Laohoo]

Yes, it can be done

[atifali.zaidi1]

do u have some commands which can help accomplish this ?

[Leo Laohoo]

@marce1000 is right.  I was mistaken. 

I was thinking of Hitless Upgrade with AP Pre-Download feature present with APSP.  It is not.  There is a Hitless Upgrade component but there is no AP Pre-Download component in APSP.

[marce1000]

  - @atifali.zaidi1      I don't think you can do that for service packs ; for a per site solution have a look at :
                              https://community.cisco.com/t5/wireless/can-we-do-ap-predownload-in-advance-while-installing-apsp/m-p/5245237/highlight/true#M279629    (LINK corrected!)

  M

[Haydn Andrews]

if the primary and secondary are in N+1 you can use the rolling AP upgrade to avoid downtime.

[Scott Fella]

@atifali.zaidi1 what APSP are you trying to upload?  You stated you are running 17.12.4 on both controllers, but the latest ASPS is for 17.12.5, so I assume you are going to use one of the APSP for 17.12.4? If you look at the release notes for the APSP, there is an AP reboot required.

https://www.cisco.com/web/software/286325254/171697/Public_Release_Notes_9800_APSP_17_12_5.pdf

[Leo Laohoo]

"APs will proceed to update images and go with staggered reboot."

I applied 17.12.5 APSP1 to a dozen APs and they all went into a simultaneous reboot.  All of them.