Open Stack

Hello
I use openstack Ussuri in Ubuntu 18 and one controller node and one compute
node with two interface, management and Provider that connected to internet
i install keystone, glance, placement, nova, neutron on self service option
*what i can *
i can create provider network and self service network and router
between them
i can ping router
i can launch instance on self service network and it has access to internet
and everything looks fine
*what i can NOT*
I can't launch instances on the provider network. When I launch an instance
on the provider network, the provider interface of the compute node will be
corrupted and not respond and the instance will not be created.

error in instance :


*Message  *Build of instance 2a86a84b-50fc-415c-a15c-cb87398f37ea aborted:
Failed to allocate the network(s), not rescheduling.
*Code  *500
*Details  *Traceback (most recent call last): File
"/usr/lib/python3/dist-packages/nova/virt/libvirt/driver.py", line 6529, in
_create_domain_and_network post_xml_callback=post_xml_callback) File
"/usr/lib/python3.6/contextlib.py", line 88, in __exit__ next(self.gen)
File "/usr/lib/python3/dist-packages/nova/compute/manager.py", line 513, in
wait_for_instance_event actual_event = event.wait() File
"/usr/lib/python3/dist-packages/eventlet/event.py", line 125, in wait
result = hub.switch() File
"/usr/lib/python3/dist-packages/eventlet/hubs/hub.py", line 298, in switch
return self.greenlet.switch() eventlet.timeout.Timeout: 300 seconds During
handling of the above exception, another exception occurred: Traceback
(most recent call last): File
"/usr/lib/python3/dist-packages/nova/compute/manager.py", line 2378, in
_build_and_run_instance accel_info=accel_info) File
"/usr/lib/python3/dist-packages/nova/virt/libvirt/driver.py", line 3663, in
spawn cleanup_instance_disks=created_disks) File
"/usr/lib/python3/dist-packages/nova/virt/libvirt/driver.py", line 6552, in
_create_domain_and_network raise
exception.VirtualInterfaceCreateException()
nova.exception.VirtualInterfaceCreateException: Virtual Interface creation
failed During handling of the above exception, another exception occurred:
Traceback (most recent call last): File
"/usr/lib/python3/dist-packages/nova/compute/manager.py", line 2200, in
_do_build_and_run_instance filter_properties, request_spec, accel_uuids)
File "/usr/lib/python3/dist-packages/nova/compute/manager.py", line 2444,
in _build_and_run_instance reason=msg) nova.exception.BuildAbortException:
Build of instance 2a86a84b-50fc-415c-a15c-cb87398f37ea aborted: Failed to
allocate the network(s), not rescheduling.
*Created  *Dec. 29, 2020, 9:18 a.m.

*After this I can't ping the computer from the provider network interface.*

I reinstalled openstack so many times and also I tried the train and
victoria version and have the same problem.

I attached log files of nova compute  and neutron linux bridge from
compute node  and neutron server from controller node.
thanks.
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