diff --git a/framework-t/Sources.bp b/framework-t/Sources.bp
index 6652780..217a1f6 100644
--- a/framework-t/Sources.bp
+++ b/framework-t/Sources.bp
@@ -154,17 +154,17 @@
     ],
 }
 
+// TODO: remove this empty filegroup.
 filegroup {
     name: "framework-connectivity-tiramisu-sources",
-    srcs: [
-        ":framework-connectivity-ethernet-sources",
-    ],
+    srcs: [],
     visibility: ["//frameworks/base"],
 }
 
 filegroup {
     name: "framework-connectivity-tiramisu-updatable-sources",
     srcs: [
+        ":framework-connectivity-ethernet-sources",
         ":framework-connectivity-ipsec-sources",
         ":framework-connectivity-netstats-sources",
         ":framework-connectivity-nsd-sources",
diff --git a/framework-t/src/android/net/ConnectivityFrameworkInitializerTiramisu.java b/framework-t/src/android/net/ConnectivityFrameworkInitializerTiramisu.java
index 9bffbfb..61b34d0 100644
--- a/framework-t/src/android/net/ConnectivityFrameworkInitializerTiramisu.java
+++ b/framework-t/src/android/net/ConnectivityFrameworkInitializerTiramisu.java
@@ -34,8 +34,9 @@
     private ConnectivityFrameworkInitializerTiramisu() {}
 
     /**
-     * Called by {@link SystemServiceRegistry}'s static initializer and registers nsd services to
-     * {@link Context}, so that {@link Context#getSystemService} can return them.
+     * Called by {@link SystemServiceRegistry}'s static initializer and registers NetworkStats, nsd,
+     * ipsec and ethernet services to {@link Context}, so that {@link Context#getSystemService} can
+     * return them.
      *
      * @throws IllegalStateException if this is called anywhere besides
      * {@link SystemServiceRegistry}.
@@ -68,5 +69,14 @@
                     return new NetworkStatsManager(context, service);
                 }
         );
+
+        SystemServiceRegistry.registerContextAwareService(
+                Context.ETHERNET_SERVICE,
+                EthernetManager.class,
+                (context, serviceBinder) -> {
+                    IEthernetManager service = IEthernetManager.Stub.asInterface(serviceBinder);
+                    return new EthernetManager(context, service);
+                }
+        );
     }
 }
diff --git a/framework-t/src/android/net/EthernetManager.java b/framework-t/src/android/net/EthernetManager.java
index eba51c1..793f28d 100644
--- a/framework-t/src/android/net/EthernetManager.java
+++ b/framework-t/src/android/net/EthernetManager.java
@@ -33,7 +33,7 @@
 import android.os.RemoteException;
 
 import com.android.internal.annotations.GuardedBy;
-import com.android.internal.os.BackgroundThread;
+import com.android.modules.utils.BackgroundThread;
 
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
diff --git a/service-t/Sources.bp b/service-t/Sources.bp
index 5100e7c..4b799c5 100644
--- a/service-t/Sources.bp
+++ b/service-t/Sources.bp
@@ -102,17 +102,16 @@
     ],
     path: "src",
     visibility: [
-        "//frameworks/opt/net/ethernet",
+        "//frameworks/opt/net/ethernet/tests",
     ],
 }
 
 // Connectivity-T common libraries.
 
+// TODO: remove this empty filegroup.
 filegroup {
     name: "services.connectivity-tiramisu-sources",
-    srcs: [
-        ":services.connectivity-ethernet-sources",
-    ],
+    srcs: [],
     path: "src",
     visibility: ["//frameworks/base/services/core"],
 }
@@ -120,6 +119,7 @@
 filegroup {
     name: "services.connectivity-tiramisu-updatable-sources",
     srcs: [
+        ":services.connectivity-ethernet-sources",
         ":services.connectivity-ipsec-sources",
         ":services.connectivity-netstats-sources",
         ":services.connectivity-nsd-sources",
diff --git a/services/tests/servicestests/src/com/android/server/net/IpConfigStoreTest.java b/tests/unit/java/com/android/server/net/IpConfigStoreTest.java
similarity index 92%
rename from services/tests/servicestests/src/com/android/server/net/IpConfigStoreTest.java
rename to tests/unit/java/com/android/server/net/IpConfigStoreTest.java
index 2f77126..ad0be58 100644
--- a/services/tests/servicestests/src/com/android/server/net/IpConfigStoreTest.java
+++ b/tests/unit/java/com/android/server/net/IpConfigStoreTest.java
@@ -48,10 +48,16 @@
  */
 @RunWith(AndroidJUnit4.class)
 public class IpConfigStoreTest {
+    private static final int KEY_CONFIG = 17;
+    private static final String IFACE_1 = "eth0";
+    private static final String IFACE_2 = "eth1";
+    private static final String IP_ADDR_1 = "192.168.1.10/24";
+    private static final String IP_ADDR_2 = "192.168.1.20/24";
+    private static final String DNS_IP_ADDR_1 = "1.2.3.4";
+    private static final String DNS_IP_ADDR_2 = "5.6.7.8";
 
     @Test
     public void backwardCompatibility2to3() throws IOException {
-        final int KEY_CONFIG = 17;
         ByteArrayOutputStream byteStream = new ByteArrayOutputStream();
         DataOutputStream outputStream = new DataOutputStream(byteStream);
 
@@ -73,13 +79,6 @@
 
     @Test
     public void staticIpMultiNetworks() throws Exception {
-        final String IFACE_1 = "eth0";
-        final String IFACE_2 = "eth1";
-        final String IP_ADDR_1 = "192.168.1.10/24";
-        final String IP_ADDR_2 = "192.168.1.20/24";
-        final String DNS_IP_ADDR_1 = "1.2.3.4";
-        final String DNS_IP_ADDR_2 = "5.6.7.8";
-
         final ArrayList<InetAddress> dnsServers = new ArrayList<>();
         dnsServers.add(InetAddresses.parseNumericAddress(DNS_IP_ADDR_1));
         dnsServers.add(InetAddresses.parseNumericAddress(DNS_IP_ADDR_2));
@@ -144,11 +143,11 @@
 
     /** Synchronously writes into given byte steam */
     private static class MockedDelayedDiskWrite extends DelayedDiskWrite {
-        final ByteArrayOutputStream byteStream = new ByteArrayOutputStream();
+        final ByteArrayOutputStream mByteStream = new ByteArrayOutputStream();
 
         @Override
         public void write(String filePath, Writer w) {
-            DataOutputStream outputStream = new DataOutputStream(byteStream);
+            DataOutputStream outputStream = new DataOutputStream(mByteStream);
 
             try {
                 w.onWriteCalled(outputStream);