Cloud Interconnect and Peering
1. Cloud Interconnect and Peering
Next, let's talk about the Cloud Interconnect and Peering services. There are different Cloud Interconnect and Peering services available to connect your infrastructure to Google's network. These services can be split into Dedicated versus Shared connections and Layer 2 versus Layer 3 connections. The services are Direct Peering, Carrier Peering, Dedicated Interconnect, and Partner Interconnect, which supports both layer 2 and layer 3. Dedicated connections provide a direct connection to Google's network, but shared connections provide a connection to Google's network through a partner. Layer 2 connections use a VLAN that pipes directly into your GCP environment, providing connectivity to internal IP addresses in the RFC 1918 address space. Layer 3 connections provide access to Google Workspace services, YouTube, and Google Cloud APIs using public IP addresses. Now, as explained earlier, Google also offers its own Virtual Private Network service, called Cloud VPN. This service uses the public internet, but traffic is encrypted and provides access to internal IP addresses. That's why Cloud VPN is a useful addition to Direct Peering and Carrier Peering. Let's explain the Cloud Interconnect and Peering services separately first before discussing guidance on choosing the right connection.2. Let's practice!
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