Google Cloud Networking

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Google Virtual Private Cloud (VPC) allows you to create isolated cloud environments in Google Cloud to host your cloud resources. You can interconnect VPCs. You can also allow and control inbound and outbound access to your VPCs.

Google Distributed Firewall (GDF) protects your resources in Google Cloud by controlling access to them. You assign  network tags to GCE instances (VMs) and apply GDF rules for each tag that define which traffic is allowed/denied to VMs with each tag, no matter IPs, subnets, zones. If a VM instance has no network tags, then, default GDF rules apply.

Google Cloud DNS (Domain Name System) is a global, cloud based, high-performance, reliable DNS management solution. Cloud DNS allows you to manage multiple domains and has built in security mechanisms. It provides very fast name resolution, is highly available and scalable and it integrates seamlessly with other Google Cloud services. 

Google Cloud CDN (Content Delivery Network) improves delivery of your website and application content, by caching frequently request data at Google network points of presence (POPs) around the world. Cloud CDN serves your content to users closer to them. This means less travel time for data, reducing latency, web page loading times, bandwidth costs and increasing scalability and security.

Google Cloud load balancers distribute incoming requests to compute processing units, making sure that no processing unit becomes overloaded or overlooked. Google load balancers also run regular health checks, based on criteria you define, to ensure that all processing units are ready to receive and process incoming requests.

Google Cloud offers 3 ways to connect your on premise infrastructure to your Google Cloud environments: VPN, Peering or Interconnect.