====== A ====== * Andromeda: the GCP software-defined network virtualization stack * https://cloud.google.com/blog/products/networking/google-cloud-networking-in-depth-how-andromeda-2-2-enables-high-throughput-vms?hl=en (2019: v2.2) * https://cloud.google.com/blog/products/gcp/andromeda-2-1-reduces-gcps-intra-zone-latency-by-40-percent?hl=en (2017: v2.1) * [[wp>Anycast]] IP address: * An [[wp>IP]] address that is used by multiple devices in multiple locations. Routing determines the "nearest" device to which to route any datagram based on geographic/availability considerations. * Simplifies [[wp>DNS]] setup by only requiring a single IP for a complete distributed application. * GCP uses those for the Global HTTP load balancer * AppEngine: a [[wp>PaaS]] GCP service focused on simplicity of web backend development. Compare [[gcp:f|Firebase]] * Autoscaling: GCE ability to add or remove VM instances depending on the load sustained by an app, and balance traffic between them * Availability: a measurement of uptime * Can be achieved through fault tolerance