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[Salvatore Orlando <1328181@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

The remove_router_interface for the VMware NSX plugin expects a precise number of SNAT rules for a subnet.
If the actual number of NAT rules differs from the expected one, an exception is raised.

The reasons for this might be:
- earlier failure in remove_router_interface
- NSX API client tampering with NSX objects
- etc.

In any case, the remove_router_interface operation should succeed
removing every match for the NAT rule to delete from the NSX logical
router.

sample traceback: http://paste.openstack.org/show/83427/

** Affects: neutron
     Importance: Medium
     Assignee: Salvatore Orlando (salvatore-orlando)
         Status: In Progress


** Tags: havana-backport-potential icehouse-backport-potential vmware

** Summary changed:

- NSX: remote_router_interface might fail because of NAT rule mismatch
+ NSX: remove_router_interface might fail because of NAT rule mismatch

** Tags added: havana-backport-potential icehouse-backport-potential

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https://bugs.launchpad.net/bugs/1328181

Title:
  NSX: remove_router_interface might fail because of NAT rule mismatch

Status in OpenStack Neutron (virtual network service):
  In Progress

Bug description:
  The remove_router_interface for the VMware NSX plugin expects a precise number of SNAT rules for a subnet.
  If the actual number of NAT rules differs from the expected one, an exception is raised.

  The reasons for this might be:
  - earlier failure in remove_router_interface
  - NSX API client tampering with NSX objects
  - etc.

  In any case, the remove_router_interface operation should succeed
  removing every match for the NAT rule to delete from the NSX logical
  router.

  sample traceback: http://paste.openstack.org/show/83427/

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