On 5/29/2014 4:41 AM, Xurong Yang wrote: > Hi, stackers > if i define provider when creating network, but no segmentation_id, net-create fail. why not allocate segmentation_id automatically? > ~$ neutron net-create test --provider:network_type=vlan --provider:physical_network=default > Invalid input for operation: segmentation_id required for VLAN provider network. There is a blueprint[1] to address this, with a spec[2] and some code proposed that you can find by searching for topic:bp/provider-network-partial-specs. Only for the ML2 plugin. [1] https://blueprints.launchpad.net/neutron/+spec/provider-network-partial-specs [2] https://review.openstack.org/91540