创建虚机报错：

Traceback (most recent call last): File "/usr/lib/python2.7/site-packages/nova/conductor/manager.py", line 637, in build_instances filter_properties, instances[0].uuid) File "/usr/lib/python2.7/site-packages/nova/scheduler/utils.py", line 895, in populate_retry raise exception.MaxRetriesExceeded(reason=msg) MaxRetriesExceeded: Exceeded maximum number of retries. Exceeded max scheduling attempts 3 for instance 1fee9270-37e8-4e3a-9c69-64e823ea8940. Last exception: Binding failed for port a1e67849-aa1d-418d-a04c-8343b8dbf64f, please check neutron logs for more information.

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