Hi Danny, If the subnet had DCHP enabled, then that 'extra' port likely belongs to the DHCP namespace. It gets created upon the first boot of an instance in that network. The port will then hang around until the network is deleted. A port-show should show you the owner of the port.
James Denton Network Engineer Rackspace Private Cloud james.den...@rackspace.com<mailto:james.den...@rackspace.com> Sent from my iPhone On Oct 7, 2014, at 12:15 PM, Danny Choi (dannchoi) <dannc...@cisco.com<mailto:dannc...@cisco.com>> wrote: Hi, I used devstack to deploy Juno OpenStack. By default, devstack created 2 users: admin (with role “admin”) and demo; and 2 networks: public (tenant = admin) and private (tenant = demo) In CLI as user demo, there is one port created (attached to the Neutron router): localadmin@qa4:~/devstack$ source openrc demo demo localadmin@qa4:~/devstack$ localadmin@qa4:~/devstack$ neutron port-list +--------------------------------------+------+-------------------+---------------------------------------------------------------------------------+ | id | name | mac_address | fixed_ips | +--------------------------------------+------+-------------------+---------------------------------------------------------------------------------+ | 8b747b8d-eb66-4cb9-92ef-c150078c50c7 | | fa:16:3e:77:21:79 | {"subnet_id": "d05e862a-6fd1-4586-89ae-03dfa52cbf44", "ip_address": "10.0.0.1"} | +--------------------------------------+------+-------------------+---------------------------------------------------------------------------------+ Launch a VM and attach the private network. localadmin@qa4:~/devstack$ nova net-list +--------------------------------------+---------+------+ | ID | Label | CIDR | +--------------------------------------+---------+------+ | 0afb2bd6-38c7-401d-966e-857dd02ba322 | private | None | | bc6e1c7d-6eca-419a-af93-47bb894e8789 | public | None | +--------------------------------------+---------+------+ localadmin@qa4:~/devstack$ nova boot --image cirros-0.3.2-x86_64-uec --flavor 1 --nic net-id=0afb2bd6-38c7-401d-966e-857dd02ba322 vm1 +--------------------------------------+----------------------------------------------------------------+ | Property | Value | +--------------------------------------+----------------------------------------------------------------+ | OS-DCF:diskConfig | MANUAL | | OS-EXT-AZ:availability_zone | nova | | OS-EXT-STS:power_state | 0 | | OS-EXT-STS:task_state | - | | OS-EXT-STS:vm_state | building | | OS-SRV-USG:launched_at | - | | OS-SRV-USG:terminated_at | - | | accessIPv4 | | | accessIPv6 | | | adminPass | BDLgcrfCLV9h | | config_drive | | | created | 2014-10-07T16:35:07Z | | flavor | m1.tiny (1) | | hostId | | | id | 38ed7d4c-26f9-4d27-8f50-8f85c680771b | | image | cirros-0.3.2-x86_64-uec (0c56933c-1d35-41cc-8771-3c0aa4d7562f) | | key_name | - | | metadata | {} | | name | vm1 | | os-extended-volumes:volumes_attached | [] | | progress | 0 | | security_groups | default | | status | BUILD | | tenant_id | 8eba682471404f389ce727bcbaa41ed2 | | updated | 2014-10-07T16:35:07Z | | user_id | 2a90bd89402945b2986f0ddd97c13303 | +--------------------------------------+----------------------------------------------------------------+ localadmin@qa4:~/devstack$ nova list +--------------------------------------+------+--------+------------+-------------+------------------+ | ID | Name | Status | Task State | Power State | Networks | +--------------------------------------+------+--------+------------+-------------+------------------+ | 38ed7d4c-26f9-4d27-8f50-8f85c680771b | vm1 | ACTIVE | - | Running | private=10.0.0.2 | +--------------------------------------+------+--------+------------+-------------+—————————+ Note that port with fixed IP 10.0.0.2 is created for the VM. However, an additional port with fixed IP 10.0.0.3 is also created. localadmin@qa4:~/devstack$ neutron port-list +--------------------------------------+------+-------------------+---------------------------------------------------------------------------------+ | id | name | mac_address | fixed_ips | +--------------------------------------+------+-------------------+---------------------------------------------------------------------------------+ | 136c049f-dcfd-4c39-a3c8-3bb6dab6ac09 | | fa:16:3e:6e:d8:a2 | {"subnet_id": "d05e862a-6fd1-4586-89ae-03dfa52cbf44", "ip_address": "10.0.0.3"} | <<<??? | 8324a907-2693-4f8f-9299-e57947f91cb6 | | fa:16:3e:8d:62:40 | {"subnet_id": "d05e862a-6fd1-4586-89ae-03dfa52cbf44", "ip_address": "10.0.0.2"} | | 8b747b8d-eb66-4cb9-92ef-c150078c50c7 | | fa:16:3e:77:21:79 | {"subnet_id": "d05e862a-6fd1-4586-89ae-03dfa52cbf44", "ip_address": "10.0.0.1"} | +--------------------------------------+------+-------------------+---------------------------------------------------------------------------------+ This port remains after deleting the VM. localadmin@qa4:~/devstack$ nova delete vm1 Request to delete server vm1 has been accepted. localadmin@qa4:~/devstack$ nova list +----+------+--------+------------+-------------+----------+ | ID | Name | Status | Task State | Power State | Networks | +----+------+--------+------------+-------------+----------+ +----+------+--------+------------+-------------+----------+ localadmin@qa4:~/devstack$ neutron port-list +--------------------------------------+------+-------------------+---------------------------------------------------------------------------------+ | id | name | mac_address | fixed_ips | +--------------------------------------+------+-------------------+---------------------------------------------------------------------------------+ | 136c049f-dcfd-4c39-a3c8-3bb6dab6ac09 | | fa:16:3e:6e:d8:a2 | {"subnet_id": "d05e862a-6fd1-4586-89ae-03dfa52cbf44", "ip_address": "10.0.0.3"} | <<<??? | 8b747b8d-eb66-4cb9-92ef-c150078c50c7 | | fa:16:3e:77:21:79 | {"subnet_id": "d05e862a-6fd1-4586-89ae-03dfa52cbf44", "ip_address": "10.0.0.1"} | +--------------------------------------+------+-------------------+---------------------------------------------------------------------------------+ Now create another VM. Note that there is only one new port created; no additional port is created as before during the first VM creation. localadmin@qa4:~/devstack$ nova boot --image cirros-0.3.2-x86_64-uec --flavor 1 --nic net-id=0afb2bd6-38c7-401d-966e-857dd02ba322 vm2 +--------------------------------------+----------------------------------------------------------------+ | Property | Value | +--------------------------------------+----------------------------------------------------------------+ | OS-DCF:diskConfig | MANUAL | | OS-EXT-AZ:availability_zone | nova | | OS-EXT-STS:power_state | 0 | | OS-EXT-STS:task_state | scheduling | | OS-EXT-STS:vm_state | building | | OS-SRV-USG:launched_at | - | | OS-SRV-USG:terminated_at | - | | accessIPv4 | | | accessIPv6 | | | adminPass | sNAwwHE5AwMw | | config_drive | | | created | 2014-10-07T16:54:52Z | | flavor | m1.tiny (1) | | hostId | | | id | c699003a-c88e-48b0-a494-6759399e7fcc | | image | cirros-0.3.2-x86_64-uec (0c56933c-1d35-41cc-8771-3c0aa4d7562f) | | key_name | - | | metadata | {} | | name | vm2 | | os-extended-volumes:volumes_attached | [] | | progress | 0 | | security_groups | default | | status | BUILD | | tenant_id | 8eba682471404f389ce727bcbaa41ed2 | | updated | 2014-10-07T16:54:52Z | | user_id | 2a90bd89402945b2986f0ddd97c13303 | +--------------------------------------+----------------------------------------------------------------+ localadmin@qa4:~/devstack$ nova list +--------------------------------------+------+--------+------------+-------------+------------------+ | ID | Name | Status | Task State | Power State | Networks | +--------------------------------------+------+--------+------------+-------------+------------------+ | c699003a-c88e-48b0-a494-6759399e7fcc | vm2 | ACTIVE | - | Running | private=10.0.0.4 | +--------------------------------------+------+--------+------------+-------------+------------------+ localadmin@qa4:~/devstack$ neutron port-list +--------------------------------------+------+-------------------+---------------------------------------------------------------------------------+ | id | name | mac_address | fixed_ips | +--------------------------------------+------+-------------------+---------------------------------------------------------------------------------+ | 136c049f-dcfd-4c39-a3c8-3bb6dab6ac09 | | fa:16:3e:6e:d8:a2 | {"subnet_id": "d05e862a-6fd1-4586-89ae-03dfa52cbf44", "ip_address": "10.0.0.3"} | <<<??? | 1c00f2ee-43dd-4d47-9844-d40afa7e1e61 | | fa:16:3e:1c:79:6a | {"subnet_id": "d05e862a-6fd1-4586-89ae-03dfa52cbf44", "ip_address": "10.0.0.4"} | | 8b747b8d-eb66-4cb9-92ef-c150078c50c7 | | fa:16:3e:77:21:79 | {"subnet_id": "d05e862a-6fd1-4586-89ae-03dfa52cbf44", "ip_address": "10.0.0.1"} | +--------------------------------------+------+-------------------+---------------------------------------------------------------------------------+ Is this expected behavior? Thanks, Danny _______________________________________________ Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack Post to : openstack@lists.openstack.org<mailto:openstack@lists.openstack.org> Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
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