diff --git a/Tethering/apex/Android.bp b/Tethering/apex/Android.bp
index ac777d7..cae2f61 100644
--- a/Tethering/apex/Android.bp
+++ b/Tethering/apex/Android.bp
@@ -22,16 +22,16 @@
 // different value depending on the branch.
 java_defaults {
     name: "ConnectivityNextEnableDefaults",
-    enabled: true,
+    enabled: false,
 }
 apex_defaults {
     name: "ConnectivityApexDefaults",
     // Tethering app to include in the AOSP apex. Branches that disable the "next" targets may use
     // a stable tethering app instead, but will generally override the AOSP apex to use updatable
     // package names and keys, so that apex will be unused anyway.
-    apps: ["TetheringNext"], // Replace to "Tethering" if ConnectivityNextEnableDefaults is false.
+    apps: ["Tethering"], // Replace to "Tethering" if ConnectivityNextEnableDefaults is false.
 }
-enable_tethering_next_apex = true
+enable_tethering_next_apex = false
 // This is a placeholder comment to avoid merge conflicts
 // as the above target may have different "enabled" values
 // depending on the branch
@@ -60,7 +60,8 @@
         both: {
             jni_libs: [
                 "libframework-connectivity-jni",
-                "libframework-connectivity-tiramisu-jni"
+                // Changed in sc-mainline-prod only: no framework-connectivity-t
+                // "libframework-connectivity-tiramisu-jni"
             ],
         },
     },
@@ -108,7 +109,7 @@
     name: "com.android.tethering-bootclasspath-fragment",
     contents: [
         "framework-connectivity",
-        "framework-connectivity-t",
+        // Changed in sc-mainline-prod only: no framework-connectivity-t
         "framework-tethering",
     ],
     apex_available: ["com.android.tethering"],
@@ -131,15 +132,18 @@
     // modified by the Soong or platform compat team.
     hidden_api: {
         max_target_r_low_priority: [
-            "hiddenapi/hiddenapi-max-target-r-loprio.txt",
-        ],
+            // Changed in sc-mainline-prod only: no list for
+            // framework-connectivity-t APIs as it is not in the APEX
+	],
         max_target_o_low_priority: [
             "hiddenapi/hiddenapi-max-target-o-low-priority.txt",
-            "hiddenapi/hiddenapi-max-target-o-low-priority-tiramisu.txt",
-        ],
+            // Changed in sc-mainline-prod only: no list for
+            // framework-connectivity-t APIs as it is not in the APEX
+	],
         unsupported: [
             "hiddenapi/hiddenapi-unsupported.txt",
-            "hiddenapi/hiddenapi-unsupported-tiramisu.txt",
+            // Changed in sc-mainline-prod only: no framework-connectivity-t
+            // "hiddenapi/hiddenapi-unsupported-tiramisu.txt",
         ],
 
         // The following packages contain classes from other modules on the
diff --git a/bpf_progs/clatd.c b/bpf_progs/clatd.c
index dc646c3..55165b1 100644
--- a/bpf_progs/clatd.c
+++ b/bpf_progs/clatd.c
@@ -37,6 +37,12 @@
 // From kernel:include/net/ip.h
 #define IP_DF 0x4000  // Flag: "Don't Fragment"
 
+// Used for iptables drops ingress clat packet. Beware of clat mark change may break the device
+// which is using the old clat mark in netd platform code. The reason is that the clat mark is a
+// mainline constant since T+ but netd iptable rules (ex: bandwidth control, firewall, and so on)
+// are set in stone.
+#define CLAT_MARK 0xdeadc1a7
+
 DEFINE_BPF_MAP_GRW(clat_ingress6_map, HASH, ClatIngress6Key, ClatIngress6Value, 16, AID_SYSTEM)
 
 static inline __always_inline int nat64(struct __sk_buff* skb, bool is_ethernet) {
@@ -64,17 +70,6 @@
     // Maximum IPv6 payload length that can be translated to IPv4
     if (ntohs(ip6->payload_len) > 0xFFFF - sizeof(struct iphdr)) return TC_ACT_PIPE;
 
-    switch (ip6->nexthdr) {
-        case IPPROTO_TCP:  // For TCP & UDP the checksum neutrality of the chosen IPv6
-        case IPPROTO_UDP:  // address means there is no need to update their checksums.
-        case IPPROTO_GRE:  // We do not need to bother looking at GRE/ESP headers,
-        case IPPROTO_ESP:  // since there is never a checksum to update.
-            break;
-
-        default:  // do not know how to handle anything else
-            return TC_ACT_PIPE;
-    }
-
     ClatIngress6Key k = {
             .iif = skb->ifindex,
             .pfx96.in6_u.u6_addr32 =
@@ -90,6 +85,21 @@
 
     if (!v) return TC_ACT_PIPE;
 
+    switch (ip6->nexthdr) {
+        case IPPROTO_TCP:  // For TCP & UDP the checksum neutrality of the chosen IPv6
+        case IPPROTO_UDP:  // address means there is no need to update their checksums.
+        case IPPROTO_GRE:  // We do not need to bother looking at GRE/ESP headers,
+        case IPPROTO_ESP:  // since there is never a checksum to update.
+            break;
+
+        default:  // do not know how to handle anything else
+            // Mark ingress non-offloaded clat packet for dropping in ip6tables bw_raw_PREROUTING.
+            // Non-offloaded clat packet is going to be handled by clat daemon and ip6tables. The
+            // duplicate one in ip6tables is not necessary.
+            skb->mark = CLAT_MARK;
+            return TC_ACT_PIPE;
+    }
+
     struct ethhdr eth2;  // used iff is_ethernet
     if (is_ethernet) {
         eth2 = *eth;                     // Copy over the ethernet header (src/dst mac)
@@ -132,7 +142,13 @@
 
     // Packet mutations begin - point of no return, but if this first modification fails
     // the packet is probably still pristine, so let clatd handle it.
-    if (bpf_skb_change_proto(skb, htons(ETH_P_IP), 0)) return TC_ACT_PIPE;
+    if (bpf_skb_change_proto(skb, htons(ETH_P_IP), 0)) {
+        // Mark ingress non-offloaded clat packet for dropping in ip6tables bw_raw_PREROUTING.
+        // Non-offloaded clat packet is going to be handled by clat daemon and ip6tables. The
+        // duplicate one in ip6tables is not necessary.
+        skb->mark = CLAT_MARK;
+        return TC_ACT_PIPE;
+    }
 
     // This takes care of updating the skb->csum field for a CHECKSUM_COMPLETE packet.
     //
diff --git a/buildstubs-t/Android.bp b/buildstubs-t/Android.bp
new file mode 100644
index 0000000..9ca3fd2
--- /dev/null
+++ b/buildstubs-t/Android.bp
@@ -0,0 +1,80 @@
+//
+// Copyright (C) 2021 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+package {
+    // See: http://go/android-license-faq
+    default_applicable_licenses: ["Android-Apache-2.0"],
+}
+
+// Placeholder empty filegroups to avoid merge conflicts on build rules
+// on a branch that does not have the filegroups
+
+filegroup {
+    name: "framework-connectivity-tiramisu-updatable-sources",
+    srcs: [],
+}
+
+filegroup {
+    name: "services.connectivity-tiramisu-updatable-sources",
+    srcs: ["stubs-src/**/*.java"],
+}
+
+filegroup {
+    name: "framework-connectivity-api-shared-srcs",
+    srcs: [],
+}
+
+filegroup {
+    name: "ethernet-service-updatable-sources",
+    srcs: [],
+}
+
+filegroup {
+    name: "services.connectivity-netstats-jni-sources",
+    srcs: [
+        "stubs-src-jni/mock_com_android_server_net_NetworkStatsFactory.cpp",
+        "stubs-src-jni/mock_com_android_server_net_NetworkStatsService.cpp",
+    ],
+    visibility: [
+        "//packages/modules/Connectivity:__subpackages__",
+    ],
+}
+
+filegroup {
+    name: "framework-connectivity-tiramisu-jni-sources",
+    srcs: [
+        "stubs-src-jni/mock_android_net_TrafficStats.cpp",
+    ],
+    visibility: [
+        "//packages/modules/Connectivity:__subpackages__",
+    ],
+}
+
+// Empty replacement for framework-connectivity-t.impl and stubs,
+// as framework-connectivity is disabled in the branch
+java_library {
+    name: "framework-connectivity-t.impl",
+    min_sdk_version: "Tiramisu",
+    sdk_version: "module_current",
+    srcs: [],
+}
+
+java_library {
+    name: "framework-connectivity-t.stubs.module_lib",
+    min_sdk_version: "Tiramisu",
+    sdk_version: "module_current",
+    srcs: [],
+}
diff --git a/framework/aidl-export/android/net/nsd/NsdServiceInfo.aidl b/buildstubs-t/stubs-src-jni/mock_android_net_TrafficStats.cpp
similarity index 72%
rename from framework/aidl-export/android/net/nsd/NsdServiceInfo.aidl
rename to buildstubs-t/stubs-src-jni/mock_android_net_TrafficStats.cpp
index 657bdd1..ef5d874 100644
--- a/framework/aidl-export/android/net/nsd/NsdServiceInfo.aidl
+++ b/buildstubs-t/stubs-src-jni/mock_android_net_TrafficStats.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2021 The Android Open Source Project
+ * Copyright (C) 2022 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -14,6 +14,12 @@
  * limitations under the License.
  */
 
-package android.net.nsd;
+#include <nativehelper/JNIHelp.h>
 
-@JavaOnlyStableParcelable parcelable NsdServiceInfo;
\ No newline at end of file
+namespace android {
+
+int register_android_net_TrafficStats(JNIEnv* env) {
+    return JNI_ERR;
+}
+
+};  // namespace android
diff --git a/framework/aidl-export/android/net/nsd/NsdServiceInfo.aidl b/buildstubs-t/stubs-src-jni/mock_com_android_server_net_NetworkStatsFactory.cpp
similarity index 70%
copy from framework/aidl-export/android/net/nsd/NsdServiceInfo.aidl
copy to buildstubs-t/stubs-src-jni/mock_com_android_server_net_NetworkStatsFactory.cpp
index 657bdd1..594a174 100644
--- a/framework/aidl-export/android/net/nsd/NsdServiceInfo.aidl
+++ b/buildstubs-t/stubs-src-jni/mock_com_android_server_net_NetworkStatsFactory.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2021 The Android Open Source Project
+ * Copyright (C) 2022 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -14,6 +14,12 @@
  * limitations under the License.
  */
 
-package android.net.nsd;
+#include <nativehelper/JNIHelp.h>
 
-@JavaOnlyStableParcelable parcelable NsdServiceInfo;
\ No newline at end of file
+namespace android {
+
+int register_android_server_net_NetworkStatsFactory(JNIEnv* env) {
+    return JNI_ERR;
+}
+
+};  // namespace android
diff --git a/framework/aidl-export/android/net/nsd/NsdServiceInfo.aidl b/buildstubs-t/stubs-src-jni/mock_com_android_server_net_NetworkStatsService.cpp
similarity index 70%
copy from framework/aidl-export/android/net/nsd/NsdServiceInfo.aidl
copy to buildstubs-t/stubs-src-jni/mock_com_android_server_net_NetworkStatsService.cpp
index 657bdd1..b0c42b0 100644
--- a/framework/aidl-export/android/net/nsd/NsdServiceInfo.aidl
+++ b/buildstubs-t/stubs-src-jni/mock_com_android_server_net_NetworkStatsService.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2021 The Android Open Source Project
+ * Copyright (C) 2022 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -14,6 +14,12 @@
  * limitations under the License.
  */
 
-package android.net.nsd;
+#include <nativehelper/JNIHelp.h>
 
-@JavaOnlyStableParcelable parcelable NsdServiceInfo;
\ No newline at end of file
+namespace android {
+
+int register_android_server_net_NetworkStatsService(JNIEnv* env) {
+    return JNI_ERR;
+}
+
+};  // namespace android
diff --git a/buildstubs-t/stubs-src/android/net/TrafficStats.java b/buildstubs-t/stubs-src/android/net/TrafficStats.java
new file mode 100644
index 0000000..0b208ac
--- /dev/null
+++ b/buildstubs-t/stubs-src/android/net/TrafficStats.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.net;
+
+import android.content.Context;
+
+/**
+ * Fake TrafficStats class for sc-mainline-prod,
+ * to allow building the T service-connectivity before sources
+ * are moved to the branch.
+ */
+public final class TrafficStats {
+    /** Init */
+    public static void init(Context context) {
+        throw new RuntimeException("This is a stub class");
+    }
+}
diff --git a/buildstubs-t/stubs-src/com/android/server/EthernetService.java b/buildstubs-t/stubs-src/com/android/server/EthernetService.java
new file mode 100644
index 0000000..4a06e1e
--- /dev/null
+++ b/buildstubs-t/stubs-src/com/android/server/EthernetService.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server.ethernet;
+
+import android.content.Context;
+
+/**
+ * Fake EthernetService class for branches that do not have the updatable EthernetService yet,
+ * to allow building the T service-connectivity before sources are moved to the branch.
+ */
+public final class EthernetService {
+    /** Create instance */
+    public static EthernetServiceImpl create(Context ctx) {
+        throw new RuntimeException("This is a stub class");
+    }
+}
+
diff --git a/framework/aidl-export/android/net/nsd/NsdServiceInfo.aidl b/buildstubs-t/stubs-src/com/android/server/EthernetServiceImpl.java
similarity index 62%
copy from framework/aidl-export/android/net/nsd/NsdServiceInfo.aidl
copy to buildstubs-t/stubs-src/com/android/server/EthernetServiceImpl.java
index 657bdd1..eb3bfa0 100644
--- a/framework/aidl-export/android/net/nsd/NsdServiceInfo.aidl
+++ b/buildstubs-t/stubs-src/com/android/server/EthernetServiceImpl.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2021 The Android Open Source Project
+ * Copyright (C) 2022 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -14,6 +14,15 @@
  * limitations under the License.
  */
 
-package android.net.nsd;
+package com.android.server.ethernet;
 
-@JavaOnlyStableParcelable parcelable NsdServiceInfo;
\ No newline at end of file
+import android.os.Binder;
+
+/** Stub class for EthernetServiceImpl */
+public class EthernetServiceImpl extends Binder {
+    /** Start service */
+    public void start() {
+        throw new RuntimeException("This is a stub class");
+    }
+}
+
diff --git a/buildstubs-t/stubs-src/com/android/server/IpSecService.java b/buildstubs-t/stubs-src/com/android/server/IpSecService.java
new file mode 100644
index 0000000..bb48c14
--- /dev/null
+++ b/buildstubs-t/stubs-src/com/android/server/IpSecService.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server;
+
+import android.content.Context;
+import android.os.Binder;
+
+/**
+ * Fake IpSecManager class for sc-mainline-prod,
+ * to allow building the T service-connectivity before sources
+ * are moved to the branch
+ */
+public final class IpSecService extends Binder {
+    public IpSecService(Context ctx) {
+        throw new RuntimeException("This is a stub class");
+    }
+}
diff --git a/buildstubs-t/stubs-src/com/android/server/NsdService.java b/buildstubs-t/stubs-src/com/android/server/NsdService.java
new file mode 100644
index 0000000..4a3ba90
--- /dev/null
+++ b/buildstubs-t/stubs-src/com/android/server/NsdService.java
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server;
+
+import android.content.Context;
+import android.os.Binder;
+
+/**
+ * Fake NsdService class for sc-mainline-prod,
+ * to allow building the T service-connectivity before sources
+ * are moved to the branch
+ */
+public final class NsdService extends Binder {
+    /** Create instance */
+    public static NsdService create(Context ctx) throws InterruptedException {
+        throw new RuntimeException("This is a stub class");
+    }
+}
diff --git a/buildstubs-t/stubs-src/com/android/server/net/NetworkStatsService.java b/buildstubs-t/stubs-src/com/android/server/net/NetworkStatsService.java
new file mode 100644
index 0000000..8568e2a
--- /dev/null
+++ b/buildstubs-t/stubs-src/com/android/server/net/NetworkStatsService.java
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server.net;
+
+import android.content.Context;
+import android.os.Binder;
+
+/**
+ * Fake NetworkStatsService class for sc-mainline-prod,
+ * to allow building the T service-connectivity before sources
+ * are moved to the branch
+ */
+public final class NetworkStatsService extends Binder {
+    /** Create instance */
+    public static NetworkStatsService create(Context ctx) {
+        throw new RuntimeException("This is a stub class");
+    }
+
+    /** System Ready */
+    public void systemReady() {
+        throw new RuntimeException("This is a stub class");
+    }
+}
diff --git a/framework-t/Android.bp b/framework-t/Android.bp
index 1e508a0..292dc3c 100644
--- a/framework-t/Android.bp
+++ b/framework-t/Android.bp
@@ -19,12 +19,9 @@
     default_applicable_licenses: ["Android-Apache-2.0"],
 }
 
-// Include build rules from Sources.bp
-build = ["Sources.bp"]
-
 java_defaults {
     name: "enable-framework-connectivity-t-targets",
-    enabled: true,
+    enabled: false,
 }
 // The above defaults can be used to disable framework-connectivity t
 // targets while minimizing merge conflicts in the build rules.
diff --git a/framework-t/Sources.bp b/framework-t/Sources.bp
index 53b4163..b30ee80 100644
--- a/framework-t/Sources.bp
+++ b/framework-t/Sources.bp
@@ -124,13 +124,6 @@
     ],
 }
 
-// TODO: remove this empty filegroup.
-filegroup {
-    name: "framework-connectivity-tiramisu-sources",
-    srcs: [],
-    visibility: ["//frameworks/base"],
-}
-
 filegroup {
     name: "framework-connectivity-tiramisu-updatable-sources",
     srcs: [
diff --git a/framework/aidl-export/android/net/NetworkStats.aidl b/framework/aidl-export/android/net/NetworkStats.aidl
deleted file mode 100644
index d06ca65..0000000
--- a/framework/aidl-export/android/net/NetworkStats.aidl
+++ /dev/null
@@ -1,19 +0,0 @@
-/**
- * Copyright (c) 2011, The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.net;
-
-parcelable NetworkStats;
diff --git a/framework/aidl-export/android/net/NetworkTemplate.aidl b/framework/aidl-export/android/net/NetworkTemplate.aidl
deleted file mode 100644
index 3d37488..0000000
--- a/framework/aidl-export/android/net/NetworkTemplate.aidl
+++ /dev/null
@@ -1,19 +0,0 @@
-/**
- * Copyright (c) 2011, The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.net;
-
-parcelable NetworkTemplate;
diff --git a/service-t/Android.bp b/service-t/Android.bp
index 1b9f2ec..52bc2c0 100644
--- a/service-t/Android.bp
+++ b/service-t/Android.bp
@@ -20,12 +20,17 @@
 }
 
 // Include build rules from Sources.bp
-build = ["Sources.bp"]
+// sc-mainline-prod only: do not include Sources.bp
+// build = ["Sources.bp"]
 
 filegroup {
     name: "service-connectivity-tiramisu-sources",
     srcs: [
-        "src/**/*.java",
+        // sc-mainline-prod only: Building T sources is disabled on this branch.
+        // "src/**/*.java",
+        "src/com/android/server/ConnectivityServiceInitializer.java",
+        // filegroup contains empty stubs on sc-mainline-prod.
+        ":services.connectivity-tiramisu-updatable-sources",
     ],
     visibility: ["//visibility:private"],
 }
diff --git a/service-t/Sources.bp b/service-t/Sources.bp
index 4e669b6..78ca21b 100644
--- a/service-t/Sources.bp
+++ b/service-t/Sources.bp
@@ -14,27 +14,6 @@
 // limitations under the License.
 //
 
-// NetworkStats related libraries.
-
-filegroup {
-    name: "services.connectivity-netstats-sources",
-    srcs: [
-        "src/com/android/server/net/NetworkIdentity*.java",
-        "src/com/android/server/net/NetworkStats*.java",
-        "src/com/android/server/net/BpfInterfaceMapUpdater.java",
-        "src/com/android/server/net/InterfaceMapValue.java",
-        "src/com/android/server/net/CookieTagMapKey.java",
-        "src/com/android/server/net/CookieTagMapValue.java",
-        "src/com/android/server/net/StatsMapKey.java",
-        "src/com/android/server/net/StatsMapValue.java",
-        "src/com/android/server/net/UidStatsMapKey.java",
-    ],
-    path: "src",
-    visibility: [
-        "//visibility:private",
-    ],
-}
-
 // For test code only.
 filegroup {
     name: "lib_networkStatsFactory_native",
@@ -59,16 +38,6 @@
     ],
 }
 
-// Connectivity-T common libraries.
-
-// TODO: remove this empty filegroup.
-filegroup {
-    name: "services.connectivity-tiramisu-sources",
-    srcs: [],
-    path: "src",
-    visibility: ["//frameworks/base/services/core"],
-}
-
 cc_library_shared {
     name: "libcom_android_net_module_util_jni",
     min_sdk_version: "30",
diff --git a/service/Android.bp b/service/Android.bp
index 25b970a..031fe31 100644
--- a/service/Android.bp
+++ b/service/Android.bp
@@ -169,7 +169,7 @@
         "networkstack-client",
         "PlatformProperties",
         "service-connectivity-protos",
-        "NetworkStackApiCurrentShims",
+        "NetworkStackApiStableShims",
     ],
     apex_available: [
         "com.android.tethering",
diff --git a/tests/deflake/Android.bp b/tests/deflake/Android.bp
index 8205f1c..b3d0363 100644
--- a/tests/deflake/Android.bp
+++ b/tests/deflake/Android.bp
@@ -21,7 +21,7 @@
 
 // FrameworksNetDeflakeTest depends on FrameworksNetTests so it should be disabled
 // if FrameworksNetTests is disabled.
-enable_frameworks_net_deflake_test = true
+enable_frameworks_net_deflake_test = false
 // Placeholder
 // This is a placeholder comment to minimize merge conflicts, as enable_frameworks_net_deflake_test
 // may have different values depending on the branch
diff --git a/tests/native/Android.bp b/tests/native/Android.bp
index cd438f6..9c286d8 100644
--- a/tests/native/Android.bp
+++ b/tests/native/Android.bp
@@ -1,3 +1,7 @@
+package {
+    default_applicable_licenses: ["Android-Apache-2.0"],
+}
+
 cc_test {
     name: "connectivity_native_test",
     test_suites: [
diff --git a/tests/unit/Android.bp b/tests/unit/Android.bp
index c27c973..3dc7ccb 100644
--- a/tests/unit/Android.bp
+++ b/tests/unit/Android.bp
@@ -9,7 +9,7 @@
 // Whether to enable the FrameworksNetTests. Set to false in the branches that might have older
 // frameworks/base since FrameworksNetTests includes the test for classes that are not in
 // connectivity module.
-enable_frameworks_net_tests = true
+enable_frameworks_net_tests = false
 // Placeholder
 // This is a placeholder comment to minimize merge conflicts, as enable_frameworks_net_tests
 // may have different values depending on the branch
@@ -131,6 +131,7 @@
         "service-connectivity-pre-jarjar",
         "service-connectivity-tiramisu-pre-jarjar",
         "services.core-vpn",
+        "cts-net-utils"
     ],
     libs: [
         "android.net.ipsec.ike.stubs.module_lib",
diff --git a/tests/unit/java/android/net/Ikev2VpnProfileTest.java b/tests/unit/java/android/net/Ikev2VpnProfileTest.java
index 8559c20..8222ca1 100644
--- a/tests/unit/java/android/net/Ikev2VpnProfileTest.java
+++ b/tests/unit/java/android/net/Ikev2VpnProfileTest.java
@@ -16,6 +16,9 @@
 
 package android.net;
 
+import static android.net.cts.util.IkeSessionTestUtils.CHILD_PARAMS;
+import static android.net.cts.util.IkeSessionTestUtils.IKE_PARAMS;
+
 import static com.android.testutils.DevSdkIgnoreRuleKt.SC_V2;
 
 import static org.junit.Assert.assertArrayEquals;
@@ -25,6 +28,7 @@
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
 
+import android.net.ipsec.ike.IkeTunnelConnectionParams;
 import android.os.Build;
 import android.test.mock.MockContext;
 
@@ -441,6 +445,33 @@
         assertEquals(ikeProfile, Ikev2VpnProfile.fromVpnProfile(ikeProfile.toVpnProfile()));
     }
 
+    @Test
+    public void testConversionIsLosslessWithIkeTunConnParams() throws Exception {
+        final IkeTunnelConnectionParams tunnelParams =
+                new IkeTunnelConnectionParams(IKE_PARAMS, CHILD_PARAMS);
+        // Config authentication related fields is not required while building with
+        // IkeTunnelConnectionParams.
+        final Ikev2VpnProfile ikeProfile = new Ikev2VpnProfile.Builder(tunnelParams).build();
+        assertEquals(ikeProfile, Ikev2VpnProfile.fromVpnProfile(ikeProfile.toVpnProfile()));
+    }
+
+    @Test
+    public void testEquals() throws Exception {
+        // Verify building without IkeTunnelConnectionParams
+        final Ikev2VpnProfile.Builder builder = getBuilderWithDefaultOptions();
+        builder.setAuthDigitalSignature(mUserCert, mPrivateKey, mServerRootCa);
+        assertEquals(builder.build(), builder.build());
+
+        // Verify building with IkeTunnelConnectionParams
+        final IkeTunnelConnectionParams tunnelParams =
+                new IkeTunnelConnectionParams(IKE_PARAMS, CHILD_PARAMS);
+        final IkeTunnelConnectionParams tunnelParams2 =
+                new IkeTunnelConnectionParams(IKE_PARAMS, CHILD_PARAMS);
+        assertEquals(new Ikev2VpnProfile.Builder(tunnelParams).build(),
+                new Ikev2VpnProfile.Builder(tunnelParams2).build());
+    }
+
+
     private static class CertificateAndKey {
         public final X509Certificate cert;
         public final PrivateKey key;
diff --git a/tests/unit/java/com/android/internal/net/VpnProfileTest.java b/tests/unit/java/com/android/internal/net/VpnProfileTest.java
index 943a559..360390d 100644
--- a/tests/unit/java/com/android/internal/net/VpnProfileTest.java
+++ b/tests/unit/java/com/android/internal/net/VpnProfileTest.java
@@ -16,6 +16,9 @@
 
 package com.android.internal.net;
 
+import static android.net.cts.util.IkeSessionTestUtils.CHILD_PARAMS;
+import static android.net.cts.util.IkeSessionTestUtils.IKE_PARAMS;
+
 import static com.android.modules.utils.build.SdkLevel.isAtLeastT;
 import static com.android.testutils.ParcelUtils.assertParcelSane;
 
@@ -26,6 +29,7 @@
 import static org.junit.Assert.assertTrue;
 
 import android.net.IpSecAlgorithm;
+import android.net.ipsec.ike.IkeTunnelConnectionParams;
 import android.os.Build;
 
 import androidx.test.filters.SmallTest;
@@ -85,7 +89,8 @@
 
     private VpnProfile getSampleIkev2Profile(String key) {
         final VpnProfile p = new VpnProfile(key, true /* isRestrictedToTestNetworks */,
-                false /* excludesLocalRoutes */, true /* requiresPlatformValidation */);
+                false /* excludesLocalRoutes */, true /* requiresPlatformValidation */,
+                null /* ikeTunConnParams */);
 
         p.name = "foo";
         p.type = VpnProfile.TYPE_IKEV2_IPSEC_USER_PASS;
@@ -120,6 +125,35 @@
         return p;
     }
 
+    private VpnProfile getSampleIkev2ProfileWithIkeTunConnParams(String key) {
+        final VpnProfile p = new VpnProfile(key, true /* isRestrictedToTestNetworks */,
+                false /* excludesLocalRoutes */, true /* requiresPlatformValidation */,
+                new IkeTunnelConnectionParams(IKE_PARAMS, CHILD_PARAMS));
+
+        p.name = "foo";
+        p.server = "bar";
+        p.dnsServers = "8.8.8.8";
+        p.searchDomains = "";
+        p.routes = "0.0.0.0/0";
+        p.mppe = false;
+        p.proxy = null;
+        p.setAllowedAlgorithms(
+                Arrays.asList(
+                        IpSecAlgorithm.AUTH_CRYPT_AES_GCM,
+                        IpSecAlgorithm.AUTH_CRYPT_CHACHA20_POLY1305,
+                        IpSecAlgorithm.AUTH_HMAC_SHA512,
+                        IpSecAlgorithm.CRYPT_AES_CBC));
+        p.isBypassable = true;
+        p.isMetered = true;
+        p.maxMtu = 1350;
+        p.areAuthParamsInline = true;
+
+        // Not saved, but also not compared.
+        p.saveLogin = true;
+
+        return p;
+    }
+
     @Test
     public void testEquals() {
         assertEquals(
@@ -134,13 +168,21 @@
     public void testParcelUnparcel() {
         if (isAtLeastT()) {
             // excludeLocalRoutes, requiresPlatformValidation were added in T.
-            assertParcelSane(getSampleIkev2Profile(DUMMY_PROFILE_KEY), 25);
+            assertParcelSane(getSampleIkev2Profile(DUMMY_PROFILE_KEY), 26);
+            assertParcelSane(getSampleIkev2ProfileWithIkeTunConnParams(DUMMY_PROFILE_KEY), 26);
         } else {
             assertParcelSane(getSampleIkev2Profile(DUMMY_PROFILE_KEY), 23);
         }
     }
 
     @Test
+    public void testEncodeDecodeWithIkeTunConnParams() {
+        final VpnProfile profile = getSampleIkev2ProfileWithIkeTunConnParams(DUMMY_PROFILE_KEY);
+        final VpnProfile decoded = VpnProfile.decode(DUMMY_PROFILE_KEY, profile.encode());
+        assertEquals(profile, decoded);
+    }
+
+    @Test
     public void testEncodeDecode() {
         final VpnProfile profile = getSampleIkev2Profile(DUMMY_PROFILE_KEY);
         final VpnProfile decoded = VpnProfile.decode(DUMMY_PROFILE_KEY, profile.encode());
diff --git a/tests/unit/java/com/android/server/ethernet/EthernetNetworkFactoryTest.java b/tests/unit/java/com/android/server/ethernet/EthernetNetworkFactoryTest.java
index 4d3e4d3..dfb4fcc 100644
--- a/tests/unit/java/com/android/server/ethernet/EthernetNetworkFactoryTest.java
+++ b/tests/unit/java/com/android/server/ethernet/EthernetNetworkFactoryTest.java
@@ -20,9 +20,9 @@
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertNotSame;
 import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertThrows;
 import static org.junit.Assert.assertTrue;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.anyString;
@@ -41,8 +41,8 @@
 import android.content.Context;
 import android.content.res.Resources;
 import android.net.ConnectivityManager;
-import android.net.EthernetNetworkSpecifier;
 import android.net.EthernetNetworkManagementException;
+import android.net.EthernetNetworkSpecifier;
 import android.net.INetworkInterfaceOutcomeReceiver;
 import android.net.IpConfiguration;
 import android.net.LinkAddress;
@@ -59,14 +59,11 @@
 import android.os.IBinder;
 import android.os.Looper;
 import android.os.test.TestLooper;
-import android.util.Pair;
 
 import androidx.test.filters.SmallTest;
 import androidx.test.runner.AndroidJUnit4;
 
-import com.android.connectivity.resources.R;
 import com.android.net.module.util.InterfaceParams;
-
 import com.android.testutils.DevSdkIgnoreRule;
 
 import org.junit.After;
@@ -79,6 +76,7 @@
 
 import java.util.Objects;
 import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.ExecutionException;
 import java.util.concurrent.TimeUnit;
 
 @RunWith(AndroidJUnit4.class)
@@ -362,7 +360,7 @@
 
         assertFalse(ret);
         verifyNoStopOrStart();
-        listener.expectOnErrorWithMessage("can't be updated as it is not available");
+        listener.expectOnError();
     }
 
     @Test
@@ -376,7 +374,7 @@
 
         assertFalse(ret);
         verifyNoStopOrStart();
-        listener.expectOnErrorWithMessage("No changes");
+        listener.expectOnError();
     }
 
     @Test
@@ -626,8 +624,6 @@
     private static final class TestNetworkManagementListener
             implements INetworkInterfaceOutcomeReceiver {
         private final CompletableFuture<String> mResult = new CompletableFuture<>();
-        private final CompletableFuture<EthernetNetworkManagementException> mError =
-                new CompletableFuture<>();
 
         @Override
         public void onResult(@NonNull String iface) {
@@ -636,19 +632,21 @@
 
         @Override
         public void onError(@NonNull EthernetNetworkManagementException exception) {
-            mError.complete(exception);
+            mResult.completeExceptionally(exception);
         }
 
         String expectOnResult() throws Exception {
             return mResult.get(TIMEOUT_MS, TimeUnit.MILLISECONDS);
         }
 
-        EthernetNetworkManagementException expectOnError() throws Exception {
-            return mError.get(TIMEOUT_MS, TimeUnit.MILLISECONDS);
-        }
-
-        void expectOnErrorWithMessage(String msg) throws Exception {
-            assertTrue(expectOnError().getMessage().contains(msg));
+        void expectOnError() throws Exception {
+            assertThrows(EthernetNetworkManagementException.class, () -> {
+                try {
+                    mResult.get();
+                } catch (ExecutionException e) {
+                    throw e.getCause();
+                }
+            });
         }
 
         @Override
@@ -723,7 +721,7 @@
         mNetFactory.updateInterface(iface, ipConfiguration, capabilities, failedListener);
         interruptingRunnable.run();
 
-        failedListener.expectOnErrorWithMessage("aborted");
+        failedListener.expectOnError();
     }
 
     @Test
@@ -754,7 +752,7 @@
         mNetFactory.updateInterface(TEST_IFACE, ipConfiguration, capabilities, listener);
 
         verifyNoStopOrStart();
-        listener.expectOnErrorWithMessage("can't be updated as it is not available");
+        listener.expectOnError();
     }
 
     @Test