远程登陆AP，查看日志如下：

%Mar 10 15:05:53:633 2021 88df-9e8e-80a0 IFNET/3/PHY_UPDOWN: Physical state on the interface GigabitEthernet1/0/1 changed to down. %Mar 10 15:05:53:637 2021 88df-9e8e-80a0 IFNET/5/LINK_UPDOWN: Line protocol state on the interface GigabitEthernet1/0/1 changed to down. %Mar 10 15:05:53:645 2021 88df-9e8e-80a0 CWC/4/CWC_AP_DOWN: Master CAPWAP tunnel to AC 192.168.0.100 went down. Reason: AP interface used for CAPWAP tunnel went down. %Mar 10 15:05:53:649 2021 88df-9e8e-80a0 IFNET/3/PHY_UPDOWN: Physical state on the interface Vlan-interface1 changed to down. %Mar 10 15:05:53:653 2021 88df-9e8e-80a0 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Vlan-interface1 changed to down. %Mar 10 15:05:56:634 2021 88df-9e8e-80a0 IFNET/3/PHY_UPDOWN: Physical state on the interface GigabitEthernet1/0/1 changed to up. %Mar 10 15:05:56:638 2021 88df-9e8e-80a0 IFNET/5/LINK_UPDOWN: Line protocol state on the interface GigabitEthernet1/0/1 changed to up. %Mar 10 15:05:56:646 2021 88df-9e8e-80a0 IFNET/3/PHY_UPDOWN: Physical state on the interface Vlan-interface1 changed to up. %Mar 10 15:05:56:669 2021 88df-9e8e-80a0 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Vlan-interface1 changed to up. %Mar 10 15:06:09:368 2021 88df-9e8e-80a0 CWC/6/CWC_AP_UP: Master CAPWAP tunnel to AC 192.168.0.100 went up. %Mar 11 14:33:28:745 2021 88df-9e8e-80a0 IFNET/3/PHY_UPDOWN: Physical state on the interface GigabitEthernet1/0/1 changed to down. %Mar 11 14:33:28:756 2021 88df-9e8e-80a0 IFNET/5/LINK_UPDOWN: Line protocol state on the interface GigabitEthernet1/0/1 changed to down. %Mar 11 14:33:28:767 2021 88df-9e8e-80a0 IFNET/3/PHY_UPDOWN: Physical state on the interface Vlan-interface1 changed to down. %Mar 11 14:33:28:768 2021 88df-9e8e-80a0 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Vlan-interface1 changed to down. %Mar 11 14:33:28:778 2021 88df-9e8e-80a0 CWC/4/CWC_AP_DOWN: Master CAPWAP tunnel to AC 192.168.0.100 went down. Reason: AP interface used for CAPWAP tunnel went down. %Mar 11 14:33:34:761 2021 88df-9e8e-80a0 IFNET/3/PHY_UPDOWN: Physical state on the interface GigabitEthernet1/0/1 changed to up. %Mar 11 14:33:34:764 2021 88df-9e8e-80a0 IFNET/5/LINK_UPDOWN: Line protocol state on the interface GigabitEthernet1/0/1 changed to up. %Mar 11 14:33:34:771 2021 88df-9e8e-80a0 IFNET/3/PHY_UPDOWN: Physical state on the interface Vlan-interface1 changed to up. %Mar 11 14:33:34:778 2021 88df-9e8e-80a0 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Vlan-interface1 changed to up. %Mar 11 14:33:47:249 2021 88df-9e8e-80a0 CWC/6/CWC_AP_UP: Master CAPWAP tunnel to AC 192.168.0.100 went up.