Hi, I tried to configure ECMP with traffic Zones on my ASA 5516-x through FMC's FlexConfig, and it seems not working.
I finally did it:
At first, I have created a Flex object (In FMC: Objects - Object Management - FlexConfig - FlexConfig Object): OutsideTrafficZoneCreation (Deployment: Once, Type: Prepend):
zone Outside_ECMP ecmp
Secondly, InterfaceTrafficZoneConfig (Deployment: Everytime, Type: Append):
interface GigabitEthernet1/1
zone-member Outside_ECMP
interface GigabitEthernet1/2
zone-member Outside_ECMP
GigabitEthernet1/1 and GigabitEthernet1/2 there are both outside interfaces
Third, I went to Devices - FlexConfig - Create a new policy for my device and added two previously created FlexConfigs to it. Deploy configuration.
Next, I have changed metrics to 1 for two default routes attached to these interfaces. Deploy configuration again.
Also, I have created two SLA timers (Objects - Object Management - SLA timer) and attached them to these routes. I don't know if it important or not, but it helps me keep both routes in running-configuration (without second SLA timer only one route appears)