Step 2 - Configure Inbound Route Maps

Configure inbound route maps to prefer the primary region for return traffic. Set lower preference values for routes learned from the primary peer.

Step 2 - Configure Inbound Route Maps

Prefer the primary region for return traffic. Give routes learned from the primary peer a lower preference value. In Gaia, a lower preference value wins. Set the primary preference value lower than the secondary preference value.

Run:

Configure the inbound route maps. 
set routemap sase_prim_in id 10 on
                        set routemap sase_prim_in id 10 allow
                        set routemap sase_prim_in id 10 match neighbor <PRIMARY_PEER_VTI_IP> on
                        set routemap sase_prim_in id 10 action preference 1
                        set routemap sase_sec_in id 10 on
                        set routemap sase_sec_in id 10 allow
                        set routemap sase_sec_in id 10 match neighbor <SECONDARY_PEER_VTI_IP> on
                        set routemap sase_sec_in id 10 action preference 50