diff --git a/apps/inbandtelemetry/impl/BUCK b/apps/inbandtelemetry/impl/BUCK
new file mode 100644
index 0000000..9c87c92
--- /dev/null
+++ b/apps/inbandtelemetry/impl/BUCK
@@ -0,0 +1,28 @@
+BUNDLES = [
+    '//apps/inbandtelemetry/api:onos-apps-inbandtelemetry-api',
+    ':onos-apps-inbandtelemetry-impl'
+]
+COMPILE_DEPS = [
+    '//lib:CORE_DEPS',
+    '//lib:KRYO',
+    '//core/store/serializers:onos-core-serializers',
+    '//pipelines/basic:onos-pipelines-basic',
+    '//apps/inbandtelemetry/api:onos-apps-inbandtelemetry-api',
+]
+
+TEST_DEPS = [
+    '//lib:TEST_ADAPTERS',
+]
+
+osgi_jar_with_tests (
+    deps = COMPILE_DEPS,
+    test_deps = TEST_DEPS,
+)
+
+onos_app(
+    title = 'P4 In-band Network Telemetry Service',
+    description = 'Provides managements of INT-capable devices. Specifies flows to enable INT and' +
+    'types of metadata to collect. Sets up INT-related information.',
+    category = 'Monitoring',
+    included_bundles = BUNDLES,
+)
\ No newline at end of file
diff --git a/apps/inbandtelemetry/impl/pom.xml b/apps/inbandtelemetry/impl/pom.xml
new file mode 100644
index 0000000..455d12e
--- /dev/null
+++ b/apps/inbandtelemetry/impl/pom.xml
@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Copyright 2016-present Open Networking Foundation
+  ~
+  ~ 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.
+  -->
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <artifactId>onos-apps-inbandtelemetry</artifactId>
+        <groupId>org.onosproject</groupId>
+        <version>1.14.0-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>onos-apps-inbandtelemetry-impl</artifactId>
+    <packaging>bundle</packaging>
+
+    <url>http://onosproject.org</url>
+
+    <description>P4 INT Management Implementation</description>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.onosproject</groupId>
+            <artifactId>onos-apps-inbandtelemetry-api</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.onosproject</groupId>
+            <artifactId>onlab-junit</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.onosproject</groupId>
+            <artifactId>onos-core-serializers</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+    </dependencies>
+</project>
\ No newline at end of file
diff --git a/apps/inbandtelemetry/impl/src/main/java/org/onosproject/inbandtelemetry/impl/IntManager.java b/apps/inbandtelemetry/impl/src/main/java/org/onosproject/inbandtelemetry/impl/IntManager.java
new file mode 100644
index 0000000..5cf32da
--- /dev/null
+++ b/apps/inbandtelemetry/impl/src/main/java/org/onosproject/inbandtelemetry/impl/IntManager.java
@@ -0,0 +1,264 @@
+/*
+ * Copyright 2015-present Open Networking Foundation
+ *
+ * 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 org.onosproject.inbandtelemetry.impl;
+
+import org.apache.felix.scr.annotations.Activate;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Deactivate;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.apache.felix.scr.annotations.Service;
+import org.onlab.util.KryoNamespace;
+import org.onosproject.core.ApplicationId;
+import org.onosproject.core.CoreService;
+import org.onosproject.inbandtelemetry.api.IntConfig;
+import org.onosproject.inbandtelemetry.api.IntIntent;
+import org.onosproject.inbandtelemetry.api.IntIntentId;
+import org.onosproject.inbandtelemetry.api.IntObjective;
+import org.onosproject.inbandtelemetry.api.IntProgrammable;
+import org.onosproject.inbandtelemetry.api.IntService;
+import org.onosproject.net.Device;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.device.DeviceService;
+import org.onosproject.net.flow.FlowRuleService;
+import org.onosproject.net.host.HostEvent;
+import org.onosproject.net.host.HostListener;
+import org.onosproject.net.host.HostService;
+import org.onosproject.store.serializers.KryoNamespaces;
+import org.onosproject.store.service.AtomicIdGenerator;
+import org.onosproject.store.service.ConsistentMap;
+import org.onosproject.store.service.Serializer;
+import org.onosproject.store.service.StorageService;
+import org.slf4j.Logger;
+
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+
+import static org.slf4j.LoggerFactory.getLogger;
+
+/**
+ * Implementation of IntService, for controlling INT-capable pipelines.
+ */
+@Component(immediate = true)
+@Service
+public class IntManager implements IntService {
+    private final String appName = "org.onosproject.inbandtelemetry";
+    private ApplicationId appId;
+    private final Logger log = getLogger(getClass());
+    private ConsistentMap<IntIntentId, IntIntent> intentConsistentMap;
+    private ConsistentMap<DeviceId, IntDeviceRole> deviceRoleConsistentMap;
+    private IntConfig cfg;
+    private AtomicIdGenerator intentIds;
+
+    private InternalHostListener hostListener = new InternalHostListener();
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    private CoreService coreService;
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    private DeviceService deviceService;
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    private StorageService storageService;
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    private HostService hostService;
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    private FlowRuleService flowRuleService;
+
+    @Activate
+    public void activate() {
+        appId = coreService.registerApplication(appName);
+
+        KryoNamespace.Builder serializer = KryoNamespace.newBuilder()
+                .register(KryoNamespaces.API)
+                .register(IntIntent.class)
+                .register(IntIntentId.class)
+                .register(IntDeviceRole.class)
+                .register(IntIntent.IntHeaderType.class)
+                .register(IntIntent.IntMetadataType.class)
+                .register(IntIntent.IntReportType.class)
+                .register(IntIntent.TelemetryMode.class);
+
+        intentConsistentMap = storageService.<IntIntentId, IntIntent>consistentMapBuilder()
+                .withSerializer(Serializer.using(serializer.build()))
+                .withName("int-intents")
+                .withApplicationId(appId)
+                .withPurgeOnUninstall()
+                .build();
+
+        deviceRoleConsistentMap = storageService.<DeviceId, IntDeviceRole>consistentMapBuilder()
+                .withSerializer(Serializer.using(serializer.build()))
+                .withName("int-device-roles")
+                .withApplicationId(appId)
+                .withPurgeOnUninstall()
+                .build();
+
+        // Assign IntDeviceRole to each device
+        deviceService.getAvailableDevices().forEach(device ->
+                deviceRoleConsistentMap.put(device.id(),
+                                            hostService.getConnectedHosts(device.id()).isEmpty() ?
+                                                    IntDeviceRole.TRANSIT :
+                                                    IntDeviceRole.SOURCE_SINK)
+        );
+        hostService.addListener(hostListener);
+        intentIds = storageService.getAtomicIdGenerator("int-intent-id-generator");
+        startInt();
+        log.info("Started", appId.id());
+    }
+
+    @Deactivate
+    public void deactivate() {
+        hostService.removeListener(hostListener);
+        log.info("Deactivated");
+    }
+
+    @Override
+    public void startInt() {
+        deviceService.getAvailableDevices().forEach(device -> {
+            if (device.is(IntProgrammable.class)) {
+                IntProgrammable intDevice = device.as(IntProgrammable.class);
+                intDevice.init();
+            }
+        });
+    }
+
+    @Override
+    public void startInt(Set<DeviceId> deviceIds) {
+        deviceIds.forEach(deviceId -> {
+            Device device = deviceService.getDevice(deviceId);
+            if (device.is(IntProgrammable.class) &&
+                    getIntRole(deviceId) == IntDeviceRole.TRANSIT) {
+                IntProgrammable intDevice = device.as(IntProgrammable.class);
+                intDevice.init();
+            }
+        });
+    }
+
+    @Override
+    public void stopInt() {
+        flowRuleService.removeFlowRulesById(appId);
+    }
+
+    @Override
+    public void stopInt(Set<DeviceId> deviceIds) {
+
+    }
+
+    @Override
+    public void setConfig(IntConfig cfg) {
+        this.cfg = cfg;
+        deviceService.getAvailableDevices().forEach(device -> {
+            if (device.is(IntProgrammable.class)) {
+                IntProgrammable intDevice = device.as(IntProgrammable.class);
+                intDevice.setupIntConfig(cfg);
+            }
+        });
+    }
+
+    @Override
+    public IntConfig getConfig() {
+        return cfg;
+    }
+
+    @Override
+    public IntIntentId installIntIntent(IntIntent intent) {
+        Integer intentId = (int) intentIds.nextId();
+        IntIntentId intIntentId = IntIntentId.valueOf(intentId);
+        intentConsistentMap.put(intIntentId, intent);
+
+        // Convert IntIntent into an IntObjective
+        IntObjective obj = new IntObjective.Builder()
+                .withSelector(intent.selector())
+                .withMetadataTypes(intent.metadataTypes())
+                .withHeaderType(intent.headerType())
+                .build();
+
+        // Install IntObjective on each INT source device
+        deviceService.getAvailableDevices().forEach(device -> {
+            if (device.is(IntProgrammable.class)
+                    && deviceRoleConsistentMap.get(device.id()).value() == IntDeviceRole.SOURCE_SINK) {
+                IntProgrammable intDevice = device.as(IntProgrammable.class);
+                intDevice.addIntObjective(obj);
+            }
+        });
+        return intIntentId;
+    }
+
+    @Override
+    public void removeIntIntent(IntIntentId intentId) {
+        IntIntent intent = intentConsistentMap.remove(intentId).value();
+
+        // Convert IntIntent into an IntObjective
+        IntObjective obj = new IntObjective.Builder()
+                .withSelector(intent.selector())
+                .withMetadataTypes(intent.metadataTypes())
+                .withHeaderType(intent.headerType())
+                .build();
+
+        // Remove IntObjective on each INT source device
+        deviceService.getAvailableDevices().forEach(device -> {
+            if (device.is(IntProgrammable.class)
+                    && deviceRoleConsistentMap.get(device.id()).value() == IntDeviceRole.SOURCE_SINK) {
+                IntProgrammable intDevice = device.as(IntProgrammable.class);
+                intDevice.removeIntObjective(obj);
+            }
+        });
+    }
+
+    @Override
+    public IntIntent getIntIntent(IntIntentId intentId) {
+        return Optional.ofNullable(intentConsistentMap.get(intentId).value()).orElse(null);
+    }
+
+    @Override
+    public Map<IntIntentId, IntIntent> getIntIntents() {
+        return intentConsistentMap.asJavaMap();
+    }
+
+    private IntDeviceRole getIntRole(DeviceId deviceId) {
+        return deviceRoleConsistentMap.get(deviceId).value();
+    }
+
+    private void setIntRole(DeviceId deviceId, IntDeviceRole role) {
+        deviceRoleConsistentMap.put(deviceId, role);
+    }
+
+    private class InternalHostListener implements HostListener {
+        @Override
+        public void event(HostEvent event) {
+            DeviceId deviceId = event.subject().location().deviceId();
+            if (!deviceService.getDevice(deviceId).is(IntProgrammable.class)) {
+                return;
+            }
+            switch (event.type()) {
+                case HOST_ADDED:
+                    // When a host is attached to the switch, we can configure it
+                    // to work as SOURCE_SINK switch.
+                    if (deviceRoleConsistentMap.getOrDefault(deviceId, IntDeviceRole.TRANSIT).value()
+                            != IntDeviceRole.SOURCE_SINK) {
+                        setIntRole(deviceId, IntDeviceRole.SOURCE_SINK);
+                    }
+                    break;
+                default:
+                    break;
+            }
+        }
+    }
+
+}
diff --git a/apps/inbandtelemetry/impl/src/main/java/org/onosproject/inbandtelemetry/impl/package-info.java b/apps/inbandtelemetry/impl/src/main/java/org/onosproject/inbandtelemetry/impl/package-info.java
new file mode 100644
index 0000000..d045fe9
--- /dev/null
+++ b/apps/inbandtelemetry/impl/src/main/java/org/onosproject/inbandtelemetry/impl/package-info.java
@@ -0,0 +1,21 @@
+/*
+ * Copyright 2015-present Open Networking Foundation
+ *
+ * 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.
+ */
+
+/**
+ * Service to control a network of devices capable of collecting and exporting
+ * data plane telemetry via in-band mechanism.
+ */
+package org.onosproject.inbandtelemetry.impl;