You can define more applets using the Embedded Event Manager (EEM) and configure granular failover for your primary and backup GRE tunnels.
Primary Tunnel State Down
(confg)#event manager applet IPSLA_PRIMARY_UP (config-applet)#event track 3 state down (config-applet)#action 1 wait 3 (config-applet)#action 2 cli command “enable” (config-applet)#action 3 cli command “config t” (config-applet)#action 4 cli command "route-map netskope-tunnel" (config-applet)#action 5 cli command "no set interface Tunnel3 Tunnel4" (config-applet)#action 6 cli command "set interface Tunnel4"
Primary Tunnel State Up
(confg)#event manager applet IPSLA_PRIMARY_DOWN (config-applet)#event track 3 state up (config-applet)#action 1 wait 3 (config-applet)#action 2 cli command “enable” (config-applet)#action 3 cli command “config t” (config-applet)#action 4 cli command "route-map netskope-tunnel" (config-applet)#action 6 cli command "set interface Tunnel3 Tunnel4"
Backup Tunnel State Down
(confg)#event manager applet IPSLA_FAILOVER_DOWN (config-applet)#event track 4 state down (config-applet)#action 1 wait 3 (config-applet)#action 2 cli command “enable” (config-applet)#action 3 cli command “config t” (config-applet)#action 4 cli command "route-map netskope-tunnel" (config-applet)#action 5 cli command "no set interface Tunnel3 Tunnel4" (config-applet)#action 6 cli command "set interface Tunnel3"
Backup Tunnel State Up
(confg)#event manager applet IPSLA_FAILOVER_UP (config-applet)#event track 4 state up (config-applet)#action 1 wait 3 (config-applet)#action 2 cli command “enable” (config-applet)#action 3 cli command “config t” (config-applet)#action 4 cli command "route-map netskope-tunnel" (config-applet)#action 5 cli command "no set interface Tunnel3” (config-applet)#action 6 cli command "set interface Tunnel3 Tunnel4"
Both Tunnels Down (Fail-Open)
This applet allows you to route all web traffic out of the default gateway or through other routes.
(confg)#event manager applet BOTH_TUNNELS_DOWN (config-applet)#event tag 1 track 3 state down (config-applet)#event tag 2 track 4 state down (config-applet)#trigger occurs 1 (config-applet)#correlate event 1 and event 2 (config-applet)#action 1 wait 3 (config-applet)#action 2 cli command “enable” (config-applet)#action 3 cli command “config t” (config-applet)#action 4 cli command "interface GigabitEthernet2" (config-applet)#action 5 cli command "no ip policy route-map netskope-tunnel"
Both Tunnels Up
(confg)#event manager applet BOTH_TUNNELS_UP (config-applet)#event tag 1 track 3 state up (config-applet)#event tag 2 track 4 state up (config-applet)#trigger occurs 1 (config-applet)#correlate event 1 and event 2 (config-applet)#action 1 wait 3 (config-applet)#action 2 cli command “enable” (config-applet)#action 3 cli command “config t” (config-applet)#action 4 cli command "interface GigabitEthernet2" (config-applet)#action 5 cli command "ip policy route-map netskope-tunnel"