nova/releasenotes/notes/deprecate-nicira-iface-id-i...

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---
deprecations:
- |
When using neutron polling mode with XenAPI driver, booting a VM will
timeout because ``nova-compute`` cannot receive network-vif-plugged event.
This is because it set vif['id'](i.e. neutron port uuid) to two different
OVS ports. One is XenServer VIF, the other is tap device qvo-XXXX, but
setting 'nicira-iface-id' to XenServer VIF isn't correct, so deprecate it.