Access Point Image download.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
07-25-2023 01:55 AM
Hi,
Please help me with the Access point image download procedure.
What is the maximum bandwidth required for AP to download the image from controller?
thanks
- Labels:
-
Catalyst Wireless Controllers
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
07-25-2023 03:38 AM
- There are no bandwidth restrictions for AP image downloads from the controller. but usually on WAN links customers may for instance pre-download the AP image before upgrading a controller (e.g.)
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! '
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
08-05-2023 06:03 AM - edited 08-05-2023 06:04 AM
You have not specified what WLC or AP models you're using or the software version but generically speaking the slower the connection, the longer the download will take. So a slow DSL line with high round trip delay will take much longer than an ethernet connected site. There are some features designed to improve performance like Flexconnect AP Image Upgrade (1 AP downloads the image then the other APs download from the first AP locally) and in the latest versions of IOS-XE on 9800 called Efficient Image Upgrade with an additional enhancement called Out-of-Band AP Image Download to allow the AP to download the image over https instead of over the CAPWAP tunnel.
https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/17-12/config-guide/b_wl_17_12_cg/m_eff_image_upgrade_ewlc.html
You should also be aware of https://www.cisco.com/c/en/us/support/docs/wireless/catalyst-9800-series-wireless-controllers/220443-how-to-avoid-boot-loop-due-to-corrupted.html which affects some releases particularly with slower download links and MTU <1485.
Please click Helpful if this post helped you and Select as Solution (drop down menu at top right of this reply) if this answered your query.
------------------------------
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
