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Cloud Interconnect
Dedicated Interconnect
Dedicated Interconnect provides direct physical connections between your on-premises network and Google's network. Dedicated Interconnect enables you to transfer large amounts of data between networks, which can be more cost-effective than purchasing additional bandwidth over the public internet.
How does Dedicated Interconnect work?
For Dedicated Interconnect, you provision a Dedicated Interconnect connection between the Google network and your own network.
The following example diagram shows a single Dedicated Interconnect connection between a Virtual Private Cloud (VPC) network and your on-premises network.
Dedicated Interconnect connection
For the basic setup shown in the diagram, a Dedicated Interconnect connection is provisioned between the Google network and the on-premises router in a common colocation facility. Your setup might be different if your on-premises router is not in the same colocation facility as your Dedicated Interconnect demarcation.
When you create a VLAN attachment, you associate it with a Cloud Router. This Cloud Router creates a BGP session for the VLAN attachment and its corresponding on-premises peer router. The Cloud Router receives the routes that your on-premises router advertises. These routes are added as custom dynamic routes in your VPC network. The Cloud Router also advertises routes for Google Cloud resources to the on-premises peer router.
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