diff --git a/core/store/dist/src/main/java/org/onlab/onos/store/device/impl/DeviceFragmentId.java b/core/store/dist/src/main/java/org/onlab/onos/store/device/impl/DeviceFragmentId.java
new file mode 100644
index 0000000..411a9e8
--- /dev/null
+++ b/core/store/dist/src/main/java/org/onlab/onos/store/device/impl/DeviceFragmentId.java
@@ -0,0 +1,54 @@
+package org.onlab.onos.store.device.impl;
+
+import java.util.Objects;
+
+import org.onlab.onos.net.DeviceId;
+import org.onlab.onos.net.provider.ProviderId;
+
+import com.google.common.base.MoreObjects;
+
+/**
+ * Identifier for DeviceDesctiption from a Provider.
+ */
+public final class DeviceFragmentId {
+    public final ProviderId providerId;
+    public final DeviceId deviceId;
+
+    public DeviceFragmentId(DeviceId deviceId, ProviderId providerId) {
+        this.providerId = providerId;
+        this.deviceId = deviceId;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(providerId, deviceId);
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (!(obj instanceof DeviceFragmentId)) {
+            return false;
+        }
+        DeviceFragmentId that = (DeviceFragmentId) obj;
+        return Objects.equals(this.deviceId, that.deviceId) &&
+               Objects.equals(this.providerId, that.providerId);
+    }
+
+    @Override
+    public String toString() {
+        return MoreObjects.toStringHelper(getClass())
+                .add("providerId", providerId)
+                .add("deviceId", deviceId)
+                .toString();
+    }
+
+    // for serializer
+    @SuppressWarnings("unused")
+    private DeviceFragmentId() {
+        this.providerId = null;
+        this.deviceId = null;
+    }
+}