Seems that neutron is working as expected here and the bug of not showing the error in detail has been resolved.
** Changed in: neutron Status: New => Invalid -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1790038 Title: Network's subnets with different subnet pools Status in neutron: Invalid Bug description: I created two subnet pools all belong to the same address scope. +-------------------+--------------------------------------+ | Field | Value | +-------------------+--------------------------------------+ | address_scope_id | a86423de-dee6-41b3-a7bf-f7dfef27919d | | created_at | 2018-08-31T09:55:16Z | | default_prefixlen | 28 | | default_quota | None | | description | | | id | f3123096-c566-4962-9760-37e0ad118b76 | | ip_version | 4 | | is_default | False | | max_prefixlen | 32 | | min_prefixlen | 8 | | name | subnet-pool-ip4-2 | | prefixes | 192.168.100.0/24 | | project_id | a4d6cb4de22746458041f74e77987832 | | revision_number | 0 | | shared | True | | tags | | | updated_at | 2018-08-31T09:55:16Z | +-------------------+--------------------------------------+ +-------------------+--------------------------------------+ | Field | Value | +-------------------+--------------------------------------+ | address_scope_id | a86423de-dee6-41b3-a7bf-f7dfef27919d | | created_at | 2018-08-30T15:42:06Z | | default_prefixlen | 26 | | default_quota | None | | description | | | id | d977634a-fb6d-42db-8c8e-e3f8248c24ec | | ip_version | 4 | | is_default | False | | max_prefixlen | 32 | | min_prefixlen | 8 | | name | subnet-pool-ip4 | | prefixes | 203.0.112.0/21 | | project_id | a4d6cb4de22746458041f74e77987832 | | revision_number | 0 | | shared | True | | tags | | | updated_at | 2018-08-30T15:42:06Z | +-------------------+--------------------------------------+ Then I create a network, "openstack network create --provider-network-type vlan network" Then I want to create two subnets, with different subnet pools. The first one is successfully created, but the second on fails with "BadRequestException: Unknown error" THe OpenStack version is queens. And it is installed in a Ubuntu 16.04 server. Thanks To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/1790038/+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