Cloned from launchpad blueprint https://blueprints.launchpad.net/neutron/+spec/make-allocation-pool-updatable.

Description:

It is not unusual for users to create a subnet but only use a small subset of the subnet for the allocation pool.  For instance the user could limit the allocation pool to a set of IPs that have DNS names associated.  It is equally, likely, however for the user to later have to extend the allocation pool to meet a growing number of VMs.  There is not, at the moment, a solution that allows the user to extend the existing allocation pool to meet the growing need.  This BluePrint proposes adding the ability to extend (and possibly) contract an allocation pool's range of IP addresses.

Specification URL (additional information):

None