There are several tasks that you perform to implement a clustering configuration with an ECMP-enabled router.
Before starting this task:
For this ECMP setup, you will need to log in to the BIG-IP® device you created the virtual server and make sure that the associated virtual address is associated with the default traffic group (traffic-group-1). Then you will need to enable the Spanning option.
On one of the devices in the device group, create the floating traffic groups you will need for your configuration, except for traffic-group-1, which is the default traffic group. Each new traffic group is empty after you create it.
In our sample device group, where we configured each traffic group to be active on a different device, the first device in traffic-group-1's Failover Order list is BIGIP_A. Similarly, the first device in the traffic-group-2 list is BIGIP_B, and the first device in the traffic-group-3 list is BIGIP_C.
Each device in the BIG-IP® device group requires a floating self IP address to ensure that inbound or outbound traffic targeted to a BIG-IP device reaches its destination even when a device goes down and failover occurs. You can create the floating self IP addresses from just one of the devices in the device group (in our example, Bigip_A). Later, you will sync that device's configuration to the other devices in the device group. Using our sample configuration with three devices that each have an external and internal VLAN, this means you will create a total of six floating self IP addresses, each associated with a specific VLAN and a specific traffic group.
|BIG-IP Device||VLAN external||VLAN internal||Traffic Group|