In Juno and before, the End User needed to know the specific subnet CIDR at the time of allocation. This made it difficult to automate the allocation of subnets - especially for external or other routable subnets. In OpenStack's Kilo, Neutron adds Subnet Pools, allowing the Operator to define a network space from which tenants can automatically allocate smaller subnets, for both internal and external networks.
In addition, the Operator can now plug-in an external IPAM system to provide subnet and IP address allocation, enabling integration with existing provisioning systems and centralized control of addressing throughout the organization.
In this session, you will:
- Learn the Kilo IPAM abstraction data model: IPAM drivers, subnet pools, subnet and address requests
- Discovery how to create and manage subnet pools, and their uses cases for subnet allocation
- Compare and contrast Neutron's built-in IPAM driver with those integrating with 3rd party IPAM systems