Create a Cloud Router and VLAN attachments in the us-east4 region attached to your physical Interconnect in Ashburn, VEnable global routing in your VPC. Set the bandwidth on the VLAN attachments to 500 Mbps.

Create a Cloud Router and VLAN attachments in the us-east4 region attached to your physical Interconnect in Ashburn, VA. Enable global routing in your VPC.

Create a Cloud Router in the us-central1 region and VLAN attachments in the us-east4 region attached to your physical Interconnect in Ashburn, VA. Enable global routing in your VPC.

Create a Cloud Router and VLAN attachments in the us-central1 region attached to your physical Interconnect in Ashburn, VA.