diff --git a/ceilometer/compute/pollsters/net.py b/ceilometer/compute/pollsters/net.py
index d4c7bc3a..9f8b0080 100644
--- a/ceilometer/compute/pollsters/net.py
+++ b/ceilometer/compute/pollsters/net.py
@@ -17,12 +17,10 @@
 import copy
 
 from oslo_log import log
-from oslo_utils import timeutils
 
 import ceilometer
 from ceilometer.compute import pollsters
 from ceilometer.compute.pollsters import util
-from ceilometer.compute import util as compute_util
 from ceilometer.compute.virt import inspector as virt_inspector
 from ceilometer.i18n import _, _LW
 from ceilometer import sample
@@ -38,32 +36,23 @@ class _Base(pollsters.BaseComputePollster):
     @staticmethod
     def make_vnic_sample(instance, name, type, unit, volume, vnic_data):
         metadata = copy.copy(vnic_data)
-        resource_metadata = dict(zip(metadata._fields, metadata))
-        resource_metadata['instance_id'] = instance.id
-        resource_metadata['instance_type'] = (instance.flavor['id'] if
-                                              instance.flavor else None)
-
-        compute_util.add_reserved_user_metadata(instance.metadata,
-                                                resource_metadata)
-
+        additional_metadata = dict(zip(metadata._fields, metadata))
         if vnic_data.fref is not None:
             rid = vnic_data.fref
-            resource_metadata['vnic_name'] = vnic_data.fref
+            additional_metadata['vnic_name'] = vnic_data.fref
         else:
             instance_name = util.instance_name(instance)
             rid = "%s-%s-%s" % (instance_name, instance.id, vnic_data.name)
-            resource_metadata['vnic_name'] = vnic_data.name
+            additional_metadata['vnic_name'] = vnic_data.name
 
-        return sample.Sample(
+        return util.make_sample_from_instance(
+            instance=instance,
             name=name,
             type=type,
             unit=unit,
             volume=volume,
-            user_id=instance.user_id,
-            project_id=instance.tenant_id,
             resource_id=rid,
-            timestamp=timeutils.utcnow().isoformat(),
-            resource_metadata=resource_metadata
+            additional_metadata=additional_metadata
         )
 
     CACHE_KEY_VNIC = 'vnics'
diff --git a/ceilometer/tests/unit/compute/pollsters/test_net.py b/ceilometer/tests/unit/compute/pollsters/test_net.py
index e99ee79d..5d5582b1 100644
--- a/ceilometer/tests/unit/compute/pollsters/test_net.py
+++ b/ceilometer/tests/unit/compute/pollsters/test_net.py
@@ -98,14 +98,14 @@ class TestNetPollster(base.TestPollsterBase):
                                               'links': [{"rel": "bookmark",
                                                          'href': 2}]},
                                     'hostId': '1234-5678',
-                                    'flavor': {'id': 1,
-                                               'disk': 20,
+                                    'flavor': {'disk': 20,
                                                'ram': 512,
+                                               'name': 'tiny',
                                                'vcpus': 2,
                                                'ephemeral': 0},
                                     'metadata': {'metering.autoscale.group':
                                                  'X' * 512,
-                                                 'metering.ephemeral_gb': 42}}
+                                                 'metering.foobar': 42}}
 
         self.faux_instance = FauxInstance(**self.INSTANCE_PROPERTIES)