Customer benefits from Cloud Networks¶
These are some of the ways in which Cloud Networks can be useful within your Cloud Servers configuration:
Isolate your servers
You can create servers without public or private (ServiceNet) network interfaces, making them accessible only through Cloud Networks.
Full control over IP addresses
Unlike PublicNet and ServiceNet, it is possible to assign specific Cloud Networks IPs to Cloud Servers, either at build time (by creating a port with a fixed IP) or to an existing server (by creating a port with a fixed IP and the existing server's UUID as device ID).
Enforce consistent network configuration
Program routes, the gateway IP, and DNS servers into the Cloud Network API and have them automatically injected in your servers at build time or when the network is attached. Use a Gateway Instance to connect your isolated Cloud Servers to the Internet.
NAT or VPN endpoint or network segmentation
Combine Cloud Networks with Gateway Instances to connect your isolated Cloud Servers to the Internet. You can also use Cloud Networks to connect your isolated Cloud Servers to a VPN endpoint, enabling secure connectivity to resources outside Rackspace Cloud. Within Rackspace Cloud, you can also use multiple Cloud Networks to segment traffic.
Cluster your applications
Cloud Networks includes full support for broadcasting and multicasting as required for some clustering technologies.
Simplify network changes
You can make networking changes to existing deployments without having to rebuild your server.
Automate network changes
By using the Cloud Networks API or Cloud Orchestration, you can develop custom software to automatically create networks and attach or detach servers based on workload requirements.
Scale networks as you grow
You can attach up to 250 servers to a single cloud network. You can have up to 10 cloud networks per region.