Hi Allesandro, The only configuration we can control from the spoke side is hub priority, the nearest DC is the primary. What we're seeing is what's explained in the DC-DC Deployment guide In a dual- or multi-datacenter configuration, identical subnets are advertised from each datacenter with a VPN concentrator mode MX... For subnets that are unique to a particular hub, traffic will be routed directly to that hub. For subnets that are advertised from multiple hubs, spokes sites will send traffic to the highest priority hub that is reachable. What would be idea is, spoke MX's exclusively select the highest priority hub except during an outage. Additional background... our Security Team would like to deploy an internal firewall between our DC CORE switches & MX concentrator. Firewalls will drop asymmetric traffic.
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