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[huanghailun <2044484@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Suppose we already have the following resources：
network_A,
datapath_A corresponds to network_A.
subnet_A,
And use subnet_A create a vm_A. The vm_A's port is bound to datapath_A in the port_binding table.
If we set enable_dhcp to False for subnet_A, the metadata agent will delete the corresponding namespace for network_A to stop the metadata service. If, at this point, we reconfigure subnet_A's DHCP, the metadata agent will not recreate the namespace corresponding to network_A to provide metadata services.

** Affects: neutron
     Importance: Undecided
     Assignee: huanghailun (lnun)
         Status: New

** Changed in: neutron
     Assignee: (unassigned) => huanghailun (lnun)

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https://bugs.launchpad.net/bugs/2044484

Title:
  Enabling DHCP after setting the subnet's 'enable_dhcp' to false does
  not recreate the metadata namespace

Status in neutron:
  New

Bug description:
  Suppose we already have the following resources：
  network_A,
  datapath_A corresponds to network_A.
  subnet_A,
  And use subnet_A create a vm_A. The vm_A's port is bound to datapath_A in the port_binding table.
  If we set enable_dhcp to False for subnet_A, the metadata agent will delete the corresponding namespace for network_A to stop the metadata service. If, at this point, we reconfigure subnet_A's DHCP, the metadata agent will not recreate the namespace corresponding to network_A to provide metadata services.

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