ENSP实现AC双链路冷备份（主备模式）

拓扑图如下：

AC1为主用AC，AC2为备用AC。AC1掉线后，AP自动在AP2上线，当AC1恢复后，一段时间后会抢占回主，中间出现业务掉线，终端需要重新连接无线。

故障切换前状态：

故障切换后状态（约经过1分钟）：

配置如下表：

AC1	AC2	SW	R1
# vlan batch 10 20 # interface Vlanif10  ip address 10.1.10.2 255.255.255.0 # interface GigabitEthernet0/0/1  port link-type trunk  port trunk allow-pass vlan 10 # ip route-static 0.0.0.0 0.0.0.0 10.1.10.1 # capwap source ip-address 10.1.10.2 # wlan  ac protect enable  security-profile name home   security wpa2 psk pass-phrase %^%#"=cQ3x(Ur'Fj-!&~(gUA97BFDE)Mo:"w;kTGW-^"%^%#  aes  ssid-profile name home   ssid home  vap-profile name home   service-vlan vlan-id 20   ssid-profile home   security-profile home  regulatory-domain-profile name china  ap-system-profile name home   primary-access ip-address 10.1.10.2   backup-access ip-address 10.1.10.3  ap-group name home   ap-system-profile home   regulatory-domain-profile china   radio 0    vap-profile home wlan 1   radio 1    vap-profile home wlan 1   radio 2    vap-profile home wlan 1  ap-id 0 type-id 56 ap-mac 00e0-fc89-2a70 ap-sn 21023544831095290713   ap-name AP1   ap-group home  ap-id 1 type-id 56 ap-mac 00e0-fcd2-4580 ap-sn 210235448310CC7C536C   ap-name AP2   ap-group home #	# vlan batch 10 # interface Vlanif10  ip address 10.1.10.3 255.255.255.0 # interface GigabitEthernet0/0/1  port link-type trunk  port trunk allow-pass vlan 10 # ip route-static 0.0.0.0 0.0.0.0 10.1.10.1 # capwap source ip-address 10.1.10.3 # wlan  ac protect enable  security-profile name home   security wpa2 psk pass-phrase %^%#vyj73l>9CN1Qai9=uqUEuya}-'We>R1P@BDZFL*L%^%#  aes  ssid-profile name home   ssid home  vap-profile name home   service-vlan vlan-id 20   ssid-profile home   security-profile home  regulatory-domain-profile name china  ap-system-profile name home   primary-access ip-address 10.1.10.2   backup-access ip-address 10.1.10.3  ap-group name home   ap-system-profile home   regulatory-domain-profile china   radio 0    vap-profile home wlan 1   radio 1    vap-profile home wlan 1   radio 2    vap-profile home wlan 1  ap-group name default  ap-id 0 type-id 56 ap-mac 00e0-fc89-2a70 ap-sn 21023544831095290713   ap-name AP1   ap-group home  ap-id 1 type-id 56 ap-mac 00e0-fcd2-4580 ap-sn 210235448310CC7C536C   ap-name AP2   ap-group home #	# vlan batch 10 20 111 # dhcp enable # interface Vlanif10  ip address 10.1.10.1 255.255.255.0  dhcp select interface  dhcp server excluded-ip-address 10.1.10.2 10.1.10.3  dhcp server option 43 sub-option 2 ip-address 10.1.10.2 10.1.10.3 # interface Vlanif20  ip address 10.1.20.1 255.255.255.0  dhcp select interface # interface Vlanif111  ip address 10.1.111.1 255.255.255.0 # interface GigabitEthernet0/0/1  port link-type access  port default vlan 111 # interface GigabitEthernet0/0/2  port link-type trunk  port trunk allow-pass vlan 10 # interface GigabitEthernet0/0/3  port link-type trunk  port trunk allow-pass vlan 10 # interface GigabitEthernet0/0/4  port link-type trunk  port trunk pvid vlan 10  port trunk allow-pass vlan 10 20 # interface GigabitEthernet0/0/5  port link-type trunk  port trunk pvid vlan 10  port trunk allow-pass vlan 10 20 # ip route-static 0.0.0.0 0.0.0.0 10.1.111.2 #	# interface GigabitEthernet0/0/0  ip address 10.1.111.2 255.255.255.0 # interface LoopBack0  ip address 1.1.1.1 255.255.255.255 # ip route-static 0.0.0.0 0.0.0.0 10.1.111.1 #