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AWS vs. GCP Networking at a Glance
- When moving between AWS and GCP, there is a contrast in their networking approaches.
- AWS focuses on regionally-scoped building blocks while GCP provides many global resources by default.
- In AWS, a Virtual Private Cloud (VPC) is regional, requiring connections like VPC Peering or AWS Transit Gateway for multi-region networks.
- GCP has a global VPC Network that simplifies multi-region architectures.
- Subnets in AWS are zonal while in GCP, they are regional, allowing VMs in different zones to share the same subnet.
- NAT Gateway in AWS is zonal while Cloud NAT in GCP is regional and cheaper for smaller deployments.
- AWS offers VPC Endpoints while GCP offers various private access options.
- Load balancers in AWS are regional, requiring AWS Global Accelerator for global traffic distribution.
- GCP's external HTTP(S) Load Balancer is global by default, using anycast IP for traffic routing.
- AWS utilizes Amazon Route 53 for DNS, domain registration, and health checking, while GCP offers Cloud DNS.
- AWS prices internet egress using a tiered model, while GCP has Network Service Tiers for internet egress.
- Both AWS and GCP provide hybrid connectivity solutions.
- AWS uses a layered model for networking while GCP employs a single, unified VPC firewall rule system.
- VPC Flow Logs in AWS capture IP traffic information, while in GCP, VPC Flow Logs sample network flows for VM instances.
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