在AP裏看到upgrade.sh: Script called with args:[ABORT], 初時以為是升級Backup image的版本失敗, 原來是不能和vWLC正常溝通
[*02/20/2023 02:26:38.0012] CAPWAP State: DTLS Setup
[*02/20/2023 02:27:35.0646]
[*02/20/2023 02:27:35.0646] CAPWAP State: DTLS Teardown
[*02/20/2023 02:27:35.2613] upgrade.sh: Script called with args:[ABORT]
[*02/20/2023 02:27:35.3548] do ABORT, part2 is active part
[*02/20/2023 02:27:35.3951] upgrade.sh: Cleanup tmp files ...
[*02/20/2023 02:27:35.4931] Discarding msg CAPWAP_WTP_EVENT_REQUEST(type 9) in CAPWAP state: DTLS Teardown(4).
[*02/20/2023 02:27:35.4935] Discarding msg CAPWAP_WTP_EVENT_REQUEST(type 9) in CAPWAP state: DTLS Teardown(4).
[*02/20/2023 02:27:39.8153] No more AP manager addresses remain..
[*02/20/2023 02:27:39.8154] No valid AP manager found for controller 'vWLC' (ip: xxx.xxx.xxx.xxx)
[*02/20/2023 02:27:39.8155] Failed to join controller vWLC.
[*02/20/2023 02:27:39.8155] Failed to join controller.
上圖Management的vSwitch需要Promiscuous Mode設定為Accept
https://www.cisco.com/c/en/us/td/docs/wireless/technology/mesh/8-2/b_Virtual_Wireless_LAN_Controller_Deployment_Guide_8-2.html