Hello Mathias
This looks like a high availability configuration that you’re setting up. You can take a look at this Cisco documentation that gives you detailed information about HA deployments:
From this document, I can give you a high level summary of how you can proceed:
Cisco SD-WAN’s affinity feature allows vEdge devices to intelligently manage control connections to multiple vSmart controllers deployed across different data centers. This ensures optimized connectivity, load balancing, and redundancy within a distributed network architecture.
Controller Group Identifiers
Each vSmart controller is assigned a controller group identifier using the controller-group-id command. These IDs, ranging from 0 to 100, categorize vSmarts by location or function—for example, assigning group 1 to controllers in Data Center 1 (DC1) and group 2 to those in Data Center 2 (DC2). This distinction forms the basis for affinity-based connection preferences on the vEdges.
Configuring Affinity on vEdge
On the vEdge device, the system controller-group-list command defines which vSmart groups the device is permitted to connect to, and the order sets the preference. For example, listing 1 2 means the vEdge will prefer group 1 over group 2. By default, each tunnel interface aims to establish two control connections, but this behavior can be tailored using max-omp-sessions and max-control-connections. Additionally, you can fine-tune connections by using exclude-controller-group-list on specific interfaces, effectively preventing them from connecting to certain controller groups.
I hope this has been helpful!
Laz
