diff --git a/core/trivial/src/main/java/org/onlab/onos/net/trivial/topology/impl/DefaultTopology.java b/core/trivial/src/main/java/org/onlab/onos/net/trivial/topology/impl/DefaultTopology.java
index 7213497..efbe6af 100644
--- a/core/trivial/src/main/java/org/onlab/onos/net/trivial/topology/impl/DefaultTopology.java
+++ b/core/trivial/src/main/java/org/onlab/onos/net/trivial/topology/impl/DefaultTopology.java
@@ -45,7 +45,7 @@
     private static final TarjanGraphSearch<TopologyVertex, TopologyEdge> TARJAN =
             new TarjanGraphSearch<>();
 
-    private static final ProviderId PID = new ProviderId("org.onlab.onos.net");
+    private static final ProviderId PID = new ProviderId("core", "org.onlab.onos.net");
 
     private final long time;
     private final TopologyGraph graph;
diff --git a/core/trivial/src/main/java/org/onlab/onos/net/trivial/topology/impl/DefaultTopologyProvider.java b/core/trivial/src/main/java/org/onlab/onos/net/trivial/topology/impl/DefaultTopologyProvider.java
index b6efba9..6e6a917 100644
--- a/core/trivial/src/main/java/org/onlab/onos/net/trivial/topology/impl/DefaultTopologyProvider.java
+++ b/core/trivial/src/main/java/org/onlab/onos/net/trivial/topology/impl/DefaultTopologyProvider.java
@@ -74,7 +74,7 @@
      * Creates a provider with the supplier identifier.
      */
     public DefaultTopologyProvider() {
-        super(new ProviderId("org.onlab.onos.provider.topology"));
+        super(new ProviderId("core", "org.onlab.onos.provider.topology"));
     }
 
     @Activate
diff --git a/core/trivial/src/main/java/org/onlab/onos/net/trivial/topology/impl/SimplePathManager.java b/core/trivial/src/main/java/org/onlab/onos/net/trivial/topology/impl/SimplePathManager.java
index f495057..5fe7793 100644
--- a/core/trivial/src/main/java/org/onlab/onos/net/trivial/topology/impl/SimplePathManager.java
+++ b/core/trivial/src/main/java/org/onlab/onos/net/trivial/topology/impl/SimplePathManager.java
@@ -45,7 +45,7 @@
 
     private static final String ELEMENT_ID_NULL = "Element ID cannot be null";
 
-    private static final ProviderId PID = new ProviderId("org.onlab.onos.core");
+    private static final ProviderId PID = new ProviderId("core", "org.onlab.onos.core");
     private static final PortNumber P0 = PortNumber.portNumber(0);
 
     private static final EdgeLink NOT_HOST = new NotHost();
diff --git a/core/trivial/src/test/java/org/onlab/onos/net/trivial/device/impl/SimpleDeviceManagerTest.java b/core/trivial/src/test/java/org/onlab/onos/net/trivial/device/impl/SimpleDeviceManagerTest.java
index 4c1aff4..4d531d3 100644
--- a/core/trivial/src/test/java/org/onlab/onos/net/trivial/device/impl/SimpleDeviceManagerTest.java
+++ b/core/trivial/src/test/java/org/onlab/onos/net/trivial/device/impl/SimpleDeviceManagerTest.java
@@ -38,7 +38,7 @@
  */
 public class SimpleDeviceManagerTest {
 
-    private static final ProviderId PID = new ProviderId("foo");
+    private static final ProviderId PID = new ProviderId("of", "foo");
     private static final DeviceId DID1 = deviceId("of:foo");
     private static final DeviceId DID2 = deviceId("of:bar");
     private static final String MFR = "whitebox";
diff --git a/core/trivial/src/test/java/org/onlab/onos/net/trivial/host/impl/SimpleHostManagerTest.java b/core/trivial/src/test/java/org/onlab/onos/net/trivial/host/impl/SimpleHostManagerTest.java
index b1b825e..67c14b0 100644
--- a/core/trivial/src/test/java/org/onlab/onos/net/trivial/host/impl/SimpleHostManagerTest.java
+++ b/core/trivial/src/test/java/org/onlab/onos/net/trivial/host/impl/SimpleHostManagerTest.java
@@ -42,7 +42,7 @@
  */
 public class SimpleHostManagerTest {
 
-    private static final ProviderId PID = new ProviderId("foo");
+    private static final ProviderId PID = new ProviderId("of", "foo");
 
     private static final VlanId VLAN1 = VlanId.vlanId((short) 1);
     private static final VlanId VLAN2 = VlanId.vlanId((short) 2);
diff --git a/core/trivial/src/test/java/org/onlab/onos/net/trivial/link/impl/SimpleLinkManagerTest.java b/core/trivial/src/test/java/org/onlab/onos/net/trivial/link/impl/SimpleLinkManagerTest.java
index 3702b0a..93610b5 100644
--- a/core/trivial/src/test/java/org/onlab/onos/net/trivial/link/impl/SimpleLinkManagerTest.java
+++ b/core/trivial/src/test/java/org/onlab/onos/net/trivial/link/impl/SimpleLinkManagerTest.java
@@ -40,7 +40,7 @@
  */
 public class SimpleLinkManagerTest {
 
-    private static final ProviderId PID = new ProviderId("foo");
+    private static final ProviderId PID = new ProviderId("of", "foo");
     private static final DeviceId DID1 = deviceId("of:foo");
     private static final DeviceId DID2 = deviceId("of:bar");
     private static final DeviceId DID3 = deviceId("of:goo");
diff --git a/core/trivial/src/test/java/org/onlab/onos/net/trivial/topology/impl/DefaultTopologyTest.java b/core/trivial/src/test/java/org/onlab/onos/net/trivial/topology/impl/DefaultTopologyTest.java
index 2520602..1fe33f6 100644
--- a/core/trivial/src/test/java/org/onlab/onos/net/trivial/topology/impl/DefaultTopologyTest.java
+++ b/core/trivial/src/test/java/org/onlab/onos/net/trivial/topology/impl/DefaultTopologyTest.java
@@ -29,7 +29,7 @@
  */
 public class DefaultTopologyTest {
 
-    public static final ProviderId PID = new ProviderId("foo.bar");
+    public static final ProviderId PID = new ProviderId("of", "foo.bar");
 
     public static final DeviceId D1 = deviceId("of:1");
     public static final DeviceId D2 = deviceId("of:2");
diff --git a/core/trivial/src/test/java/org/onlab/onos/net/trivial/topology/impl/SimpleTopologyManagerTest.java b/core/trivial/src/test/java/org/onlab/onos/net/trivial/topology/impl/SimpleTopologyManagerTest.java
index 1480cec..b0b1eed 100644
--- a/core/trivial/src/test/java/org/onlab/onos/net/trivial/topology/impl/SimpleTopologyManagerTest.java
+++ b/core/trivial/src/test/java/org/onlab/onos/net/trivial/topology/impl/SimpleTopologyManagerTest.java
@@ -43,7 +43,7 @@
  */
 public class SimpleTopologyManagerTest {
 
-    private static final ProviderId PID = new ProviderId("foo");
+    private static final ProviderId PID = new ProviderId("of", "foo");
 
     private SimpleTopologyManager mgr;