Choosing a connection

1. Choosing a connection

Now that we've discussed all the different connection services, let me help you determine which service best meets your hybrid connectivity needs. We started this lesson by introducing the 5 different ways to connect your infrastructure to Google Cloud. We split these services into Dedicated versus Shared connections and Layer 2 versus Layer 3 connections. Another way to organize these services is by Interconnect services and by Peering services. Interconnect services provide direct access to RFC1918 IP addresses in your VPC, with an SLA. Peering services, in contrast, offer access to Google public IP addresses only, without an SLA. Another way to choose the right service that meets your needs is with a flow diagram. Let me walk you through three diagrams, using the assumption that you want to extend your infrastructure to the cloud. Ask yourself whether you need to extend your network for Workspace services, YouTube, or Google Cloud APIs. If you do, choose one of the Peering services. If you can meet Google's Direct Peering requirements, choose Direct Peering; otherwise, choose Carrier Peering. If you don't need to extend your network for Workspace services or Google Cloud APIs but want to connect your Google Cloud network with other cloud services, Cross Cloud Interconnect is the option for you. Cross Cloud Connect is a Google-managed routing solution that is an ideal choice for workloads that need high bandwidth and need a Google-managed routing solution. If you're looking to simply connect Google Cloud VPC with another cloud service and have no high bandwidth requirements and want to keep your encryption managed by Google, choose Cloud VPN. If you want to extend the reach of your network to Google Cloud, you want to pick one of the Interconnect services. Start with colocation facilities. If you cannot meet Google at one of its colocation facilities, choose Cloud VPN or Partner Interconnect. This choice will depend on your bandwidth and encryption requirements, along with the purpose of the connection. Specifically, if you have modest bandwidth needs, will use the connection for short durations and trials, and require an encrypted channel, choose Cloud VPN. Otherwise, choose Partner Interconnect. Within Partner Interconnect, you can choose between L2 Partner Interconnect and L3 Partner Interconnect. Choose L2 Partner Interconnect, if you need BGP peering and L3 Partner Interconnect if you don't. If you can meet Google at one of its colocation facilities, you might jump to Dedicated Interconnect. However, if you cannot provide your own encryption mechanisms for sensitive traffic, feel that a 10 Gbps connection is too large, or want access to multiple cloud services, you want to consider Cloud VPN or Partner Interconnect instead. Google now supports VPN over Interconnect options. After you have made your decision on the Interconnect options, you can choose whether or not you want Google-managed encryption. If you want Google-managed encryption, choose the Cloud VPN over Interconnect option.

2. Let's practice!

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