diff --git a/nova/db/api.py b/nova/db/api.py
index c03a86671..05d81d8b2 100644
--- a/nova/db/api.py
+++ b/nova/db/api.py
@@ -261,11 +261,13 @@ def floating_ip_disassociate(context, address):
     return IMPL.floating_ip_disassociate(context, address)
 
 
-def floating_ip_fixed_ip_associate(context, floating_address, fixed_address):
+def floating_ip_fixed_ip_associate(context, floating_address,
+                                   fixed_address, host):
     """Associate an floating ip to a fixed_ip by address."""
     return IMPL.floating_ip_fixed_ip_associate(context,
                                                floating_address,
-                                               fixed_address)
+                                               fixed_address,
+                                               host)
 
 
 def floating_ip_get_all(context):
@@ -324,13 +326,15 @@ def migration_get_by_instance_and_status(context, instance_uuid, status):
 ####################
 
 
-def fixed_ip_associate(context, address, instance_id, network_id=None):
+def fixed_ip_associate(context, address, instance_id, network_id=None,
+                       reserved=False):
     """Associate fixed ip to instance.
 
     Raises if fixed ip is not available.
 
     """
-    return IMPL.fixed_ip_associate(context, address, instance_id, network_id)
+    return IMPL.fixed_ip_associate(context, address, instance_id, network_id,
+                                   reserved)
 
 
 def fixed_ip_associate_pool(context, network_id, instance_id=None, host=None):
@@ -365,7 +369,7 @@ def fixed_ip_get_all(context):
 
 def fixed_ip_get_all_by_instance_host(context, host):
     """Get all allocated fixed ips filtered by instance host."""
-    return IMPL.fixed_ip_get_all_instance_by_host(context, host)
+    return IMPL.fixed_ip_get_all_by_instance_host(context, host)
 
 
 def fixed_ip_get_by_address(context, address):
diff --git a/nova/db/sqlalchemy/api.py b/nova/db/sqlalchemy/api.py
index 523258841..8ea154490 100644
--- a/nova/db/sqlalchemy/api.py
+++ b/nova/db/sqlalchemy/api.py
@@ -529,7 +529,8 @@ def floating_ip_count_by_project(context, project_id):
 
 
 @require_context
-def floating_ip_fixed_ip_associate(context, floating_address, fixed_address):
+def floating_ip_fixed_ip_associate(context, floating_address,
+                                   fixed_address, host):
     session = get_session()
     with session.begin():
         # TODO(devcamcar): How to ensure floating_id belongs to user?
@@ -540,6 +541,7 @@ def floating_ip_fixed_ip_associate(context, floating_address, fixed_address):
                                                fixed_address,
                                                session=session)
         floating_ip_ref.fixed_ip = fixed_ip_ref
+        floating_ip_ref.host = host
         floating_ip_ref.save(session=session)
 
 
@@ -583,6 +585,7 @@ def floating_ip_disassociate(context, address):
         else:
             fixed_ip_address = None
         floating_ip_ref.fixed_ip = None
+        floating_ip_ref.host = None
         floating_ip_ref.save(session=session)
     return fixed_ip_address
 
@@ -669,14 +672,19 @@ def floating_ip_update(context, address, values):
 
 
 @require_admin_context
-def fixed_ip_associate(context, address, instance_id, network_id=None):
+def fixed_ip_associate(context, address, instance_id, network_id=None,
+                       reserved=False):
+    """Keyword arguments:
+    reserved -- should be a boolean value(True or False), exact value will be
+    used to filter on the fixed ip address
+    """
     session = get_session()
     with session.begin():
         network_or_none = or_(models.FixedIp.network_id == network_id,
                               models.FixedIp.network_id == None)
         fixed_ip_ref = session.query(models.FixedIp).\
                                filter(network_or_none).\
-                               filter_by(reserved=False).\
+                               filter_by(reserved=reserved).\
                                filter_by(deleted=False).\
                                filter_by(address=address).\
                                with_lockmode('update').\