Question

A network architect is deploying Cisco Catalyst SD-WAN Cloud OnRamp for Multicloud to connect branch WAN Edge routers to workloads in an AWS host VPC. The design requires that if the primary transit region's Cloud Gateway fails, branch traffic to the cloud workloads must continue over an alternate path without manual intervention, and both Cloud Gateway WAN Edge instances must appear as valid next hops in the SD-WAN overlay. Which deployment approach satisfies these resiliency requirements?

Accepted Answer

Deploy two Cloud Gateway WAN Edge instances in the transit VPC/VNet and rely on OMP to advertise the host VPC prefixes from both gateways so branches receive redundant overlay routes

Answer

Deploy a single Cloud Gateway and configure an AWS Transit Gateway route table failover to a second region using static routes

Answer

Deploy two Cloud Gateways but configure a centralized control policy to advertise the host VPC prefixes from only the primary gateway to avoid asymmetric routing

Answer

Deploy a single Cloud Gateway with two public IPsec tunnels to the same host VPC and enable BGP graceful restart on the branch routers