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Hi,
I've an Havana installation with distributed services (controller node,
network node running only the neutron agents, compute node).
The Network node is redundant with dhcp agent in HA mode active/active
(2 instances running on 2 different network nodes).

I noticed that, often, after an Hard Reboot the VM is unable to talk to
the dhcp agent to obtain its private IP. I observed that when this
happens, the tap of the VM doesn't have the VLAN tag it had before, 
during the normal functioning.

This problem doesn't occur if a Soft Reboot is performed (e.g. a
"reboot" issued from the console).

Is this known or experienced by someone else ?

thanks,

      Alvise