About VeloCloud SD-WAN and Google Network Connectivity Center Integration
VeloCloud SD-WAN allows you to connect remote locations to Google Virtual Private Clouds (VPCs) in a simple, optimized, and secure way.
VeloCloud SD-WAN leverages the Dynamic Multi-Path Optimization (DMPO) technologies and distributed cloud gateway coverage across the globe. It transforms the unpredictable broadband transport to enterprise-class quality connections and ensures the application performance from on-premises to Google Cloud. With the addition of Google Network Connectivity Center, you can leverage Google’s network as a mid-mile to inter-connect remote locations.
Network Connectivity Center enables instant access to the global reach and reliability of Google’s network. This functionality enables your enterprise to benefit from Google’s deep set of reliability and traffic engineering practices.
The following diagram depicts the branch-to-branch connectivity using VeloCloud SD-WAN and Network Connectivity Center:

Recommended Architecture
The Network Connectivity Center hub supports only one VPC at the time of writing.
The recommended architecture is to have the supported VPC as your hub VPC and this hub VPC should not contain any workloads other than the router appliances. The following diagram depicts the hub and spoke topology based on the recommended architecture:

For additional information about Network Connectivity Center, and hubs and spokes, refer to Network Connectivity Center Overview.
