Cloud Interconnect
1. Cloud Interconnect
Dedicated Interconnect provides direct physical connections between your on-premises network and Google's network. This enables you to transfer large amounts of data between networks, which can be more cost-effective than purchasing additional bandwidth over the public internet. In order to use Dedicated Interconnect, you need to provision a cross connect between the Google network and your own router in a common colocation facility, as shown in this diagram. To exchange routes between the networks, you configure a BGP session over the interconnect between the Cloud Router and the on-premises router. This will allow user traffic from the on-premises network to reach GCP resources on the VPC network, and vice versa. Dedicated Interconnect can be configured to offer a 99.9% or a 99.99% uptime SLA. See the Dedicated Interconnect documentation for details on how to achieve these SLAs. In order to use Dedicated Interconnect, your network must physically meet Google's network in a supported colocation facility. This map shows the locations where you can create dedicated connections. For a full list of these locations, see the links section of this video. Now, you might look at this map and say, "well I am nowhere near one of those locations." That's when you want to consider Partner Interconnect. Partner Interconnect provides connectivity between your on-premises network and your VPC network through a supported service provider. This is useful if your data center is in a physical location that cannot reach a Dedicated Interconnect colocation facility or if your data needs don't warrant a Dedicated Interconnect. In order to use Partner Interconnect, you work with a supported service provider to connect your VPC and on-premises networks. For a full list of providers, see the links section of this video. These service providers have existing physical connections to Google's network that they make available for their customers to use. After you establish connectivity with a service provider, you can request a Partner Interconnect connection from your service provider. Then, you establish a BGP session between your Cloud Router and on-premises router to start passing traffic between your networks via the service provider's network. Partner Interconnect can be configured to offer a 99.9% or a 99.99% uptime SLA between Google and the service provider. See the Partner Interconnect documentation for details on how to achieve these SLAs. Cross-Cloud Interconnect helps you to establish high-bandwidth dedicated connectivity between Google Cloud and another cloud service provider. When you buy Cross-Cloud Interconnect, Google provisions a dedicated physical connection between the Google network and that of another cloud service provider. You can use this connection to peer your Google Virtual Private Cloud (VPC) network with your network that's hosted by a supported cloud service provider. Google currently supports Amazon Web Services, Microsoft Azure, Oracle Cloud Infrastructure, and Alibaba Cloud for use with Cross-Cloud Interconnect. Cross-Cloud Interconnect supports the adoption of an integrated multi cloud strategy and offers reduced complexity, site-to-site data transfer, and encryption. Cross-Cloud Interconnect connections are available in two sizes: 10 Gbps or 100 Gbps. First, you identify supported locations where you want Google to place your connections. Then you purchase primary and redundant Cross-Cloud Interconnect ports. You also buy primary and redundant ports from your cloud service provider. After provisioning the connection, Google supports the connection up to the point where it reaches the network of your other cloud service provider. Google does not guarantee uptime from the other cloud service provider and cannot create a support ticket on your behalf. Let me compare the interconnect options that we just discussed. All of these options provide internal IP address access between resources in your on-premises network and in your VPC network. The main differences are the connection capacity and the requirements for using a service. The IPsec VPN tunnels that Cloud VPN offers have a capacity of 1.5 to 3 Gbps per tunnel and require a VPN device on your on-premises network. The 1.5-Gbps capacity applies to traffic that traverses the public internet, and the 3-Gbps capacity applies to traffic that is traversing a direct peering link. You can configure multiple tunnels if you want to scale this capacity. Dedicated Interconnect has a capacity of 10 Gbps or 100 Gbps per link and requires you to have a connection in a Google-supported colocation facility. You can have up to 8 links to achieve multiples of 10 Gbps, or up to 2 links to achieve multiples of 100 Gbps, but 10 Gbps is the minimum capacity. Partner Interconnect has a capacity of 50 Mbps to 50 Gbps per connection, and requirements depend on the service provider. Cross-Cloud Interconnect enables you to establish high-bandwidth dedicated connectivity between Google Cloud and another cloud service provider. Cross-Cloud Interconnect connections are available in two sizes: 10 Gbps or 100 Gbps. If you need a lower cost solution, have lower bandwidth needs, or you are experimenting with migrating your workloads to Google Cloud, you can choose Cloud VPN. If you need an enterprise-grade connection to Google Cloud that has higher throughput, you can choose Dedicated Interconnect or Partner Interconnect. If you need to connect to another cloud service provider, choose Cross-Cloud Interconnect. Google recommends using Cloud Interconnect instead of Direct Peering and Carrier Peering, which you would only use in certain circumstances.2. Let's practice!
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