We have deployed the solution for aviatrix hybrid edge spokes in azure cloud + on prem DC 

Hybrid edge controller are sitting in the azure VNET ,dedicated for the controller 

While edge spoke gateways which communicate to these controller via IPSEC tunnels are sitting in the on prem DC 

We have see the problem , edge spoke gateways create these IPSEC tunnels using the private underlay links between on prem dc and the azure express route connections , also the same underlay link are being used for communication or the updates between controller and edge spoke gateways 

Further the edge spoke gateways sitting in the ON PREM dc have BGPoLAN connection and advertises the overlay routes to on prem connection 

We have two on prem DC , 4 sets of edge spokes in each DC 

On prem DC are further connected to the Colos (On prem DC1 to Equinix Colo ) & On prem DC2 to Cologix Colo 

Problem 

During the outage of the link between on prem DC 1 to the Equinix Colo 

Both data plane and mgmt plane connection gets disconnected , due to which the routing update for the attachments between hybrid edge transit gateways (controller by the controller hosted in azure vnet) and edge spoke gateways doesnt go through and the traffic doesnt failover to the onprem DC2 + Cologix Colo 

We are thinking what solution can be provided by aviatrix for the auto failover for the edge spoke gateways data plane between the two colos