This extension is a shim extension. It indicates the presence of the feature but doesn't actually provide the feature. The reason it is there is due to some confusion about the future of extensions at the time of development. It was developed as a core resource but then at the very last hour some in the community insisted that an extension be created for it. It was agreed that this shim extension would be sufficient so that the feature could merge for Kilo.
** Changed in: neutron Status: New => Won't Fix -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1521909 Title: subnet_allocation extention is no need Status in neutron: Won't Fix Bug description: subnetpool is a core resource, why is there a extension "subnet_allocation", for ml2 plugin, in it's _supported_extension_aliases _supported_extension_aliases = ["provider", "external-net", "binding", "quotas", "security-group", "agent", "dhcp_agent_schedler", "multi-provider", "allowed-address-pairs", "extra_dhcp_opt", "subnet_allocation", "net-mtu", "vlan-transparent", "address-scope", "dns-integration", "availability_zone", "network_availability_zone"] if we delete subnet_allocation from _supported_extension_aliases, we also can create subnetpool and create subnet with subnetpool-id To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/1521909/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp