diff --git a/core/store/primitives/src/main/java/org/onosproject/store/cluster/impl/AtomixClusterStore.java b/core/store/primitives/src/main/java/org/onosproject/store/cluster/impl/AtomixClusterStore.java
new file mode 100644
index 0000000..0afc462
--- /dev/null
+++ b/core/store/primitives/src/main/java/org/onosproject/store/cluster/impl/AtomixClusterStore.java
@@ -0,0 +1,241 @@
+/*
+ * Copyright 2018-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.store.cluster.impl;
+
+import java.time.Instant;
+import java.util.Map;
+import java.util.Objects;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+import com.google.common.collect.Maps;
+import io.atomix.cluster.ClusterMembershipEvent;
+import io.atomix.cluster.ClusterMembershipEventListener;
+import io.atomix.cluster.ClusterMembershipService;
+import io.atomix.cluster.Member;
+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.packet.IpAddress;
+import org.onosproject.cluster.ClusterEvent;
+import org.onosproject.cluster.ClusterStore;
+import org.onosproject.cluster.ClusterStoreDelegate;
+import org.onosproject.cluster.ControllerNode;
+import org.onosproject.cluster.DefaultControllerNode;
+import org.onosproject.cluster.Node;
+import org.onosproject.cluster.NodeId;
+import org.onosproject.core.Version;
+import org.onosproject.core.VersionService;
+import org.onosproject.store.AbstractStore;
+import org.onosproject.store.impl.AtomixManager;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+/**
+ * Atomix cluster store.
+ */
+@Component(immediate = true)
+@Service
+public class AtomixClusterStore extends AbstractStore<ClusterEvent, ClusterStoreDelegate> implements ClusterStore {
+    private static final String INSTANCE_ID_NULL = "Instance ID cannot be null";
+
+    private static final String STATE_KEY = "state";
+    private static final String VERSION_KEY = "version";
+
+    private final Logger log = LoggerFactory.getLogger(getClass());
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected AtomixManager atomixManager;
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected VersionService versionService;
+
+    private ClusterMembershipService membershipService;
+    private ControllerNode localNode;
+    private final Map<NodeId, ControllerNode> nodes = Maps.newConcurrentMap();
+    private final Map<NodeId, ControllerNode.State> states = Maps.newConcurrentMap();
+    private final Map<NodeId, Version> versions = Maps.newConcurrentMap();
+    private final Map<NodeId, Instant> updates = Maps.newConcurrentMap();
+    private final ClusterMembershipEventListener membershipEventListener = this::changeMembership;
+
+    @Activate
+    public void activate() {
+        membershipService = atomixManager.getAtomix().getMembershipService();
+        membershipService.addListener(membershipEventListener);
+        membershipService.getMembers().forEach(member -> {
+            ControllerNode node = toControllerNode(member);
+            nodes.put(node.id(), node);
+            updateState(node, member);
+            updateVersion(node, member);
+        });
+        membershipService.getLocalMember().properties().put(STATE_KEY, ControllerNode.State.ACTIVE.name());
+        membershipService.getLocalMember().properties().put(VERSION_KEY, versionService.version().toString());
+        localNode = toControllerNode(membershipService.getLocalMember());
+        states.put(localNode.id(), ControllerNode.State.ACTIVE);
+        versions.put(localNode.id(), versionService.version());
+        log.info("Started");
+    }
+
+    @Deactivate
+    public void deactivate() {
+        membershipService.removeListener(membershipEventListener);
+        log.info("Stopped");
+    }
+
+    private void changeMembership(ClusterMembershipEvent event) {
+        ControllerNode node = nodes.get(NodeId.nodeId(event.subject().id().id()));
+        switch (event.type()) {
+            case MEMBER_ADDED:
+            case METADATA_CHANGED:
+                if (node == null) {
+                    node = toControllerNode(event.subject());
+                    nodes.put(node.id(), node);
+                    notifyDelegate(new ClusterEvent(ClusterEvent.Type.INSTANCE_ADDED, node));
+                }
+                updateVersion(node, event.subject());
+                updateState(node, event.subject());
+                break;
+            case MEMBER_REMOVED:
+                if (node != null
+                    && states.put(node.id(), ControllerNode.State.INACTIVE) != ControllerNode.State.INACTIVE) {
+                    notifyDelegate(new ClusterEvent(ClusterEvent.Type.INSTANCE_DEACTIVATED, node));
+                    notifyDelegate(new ClusterEvent(ClusterEvent.Type.INSTANCE_REMOVED, node));
+                }
+                break;
+            default:
+                break;
+        }
+    }
+
+    private void updateState(ControllerNode node, Member member) {
+        String state = member.properties().getProperty(STATE_KEY);
+        if (state == null || !state.equals(ControllerNode.State.READY.name())) {
+            if (states.put(node.id(), ControllerNode.State.ACTIVE) != ControllerNode.State.ACTIVE) {
+                log.info("Updated node {} state to {}", node.id(), ControllerNode.State.ACTIVE);
+                markUpdated(node.id());
+                notifyDelegate(new ClusterEvent(ClusterEvent.Type.INSTANCE_ACTIVATED, node));
+            }
+        } else {
+            if (states.put(node.id(), ControllerNode.State.READY) != ControllerNode.State.READY) {
+                log.info("Updated node {} state to {}", node.id(), ControllerNode.State.READY);
+                markUpdated(node.id());
+                notifyDelegate(new ClusterEvent(ClusterEvent.Type.INSTANCE_READY, node));
+            }
+        }
+    }
+
+    private void updateVersion(ControllerNode node, Member member) {
+        String versionString = member.properties().getProperty(VERSION_KEY);
+        if (versionString != null) {
+            Version version = Version.version(versionString);
+            if (!Objects.equals(versions.put(node.id(), version), version)) {
+                log.info("Updated node {} version to {}", node.id(), version);
+            }
+        }
+    }
+
+    private void markUpdated(NodeId nodeId) {
+        updates.put(nodeId, Instant.now());
+    }
+
+    private ControllerNode toControllerNode(Member member) {
+        return new DefaultControllerNode(
+            NodeId.nodeId(member.id().id()),
+            IpAddress.valueOf(member.address().address()),
+            member.address().port());
+    }
+
+    @Override
+    public ControllerNode getLocalNode() {
+        return toControllerNode(membershipService.getLocalMember());
+    }
+
+    @Override
+    public Set<Node> getStorageNodes() {
+        return membershipService.getMembers()
+            .stream()
+            .filter(member -> !Objects.equals(member.properties().getProperty("type"), "onos"))
+            .map(this::toControllerNode)
+            .collect(Collectors.toSet());
+    }
+
+    @Override
+    public Set<ControllerNode> getNodes() {
+        return membershipService.getMembers()
+            .stream()
+            .filter(member -> Objects.equals(member.properties().getProperty("type"), "onos"))
+            .map(this::toControllerNode)
+            .collect(Collectors.toSet());
+    }
+
+    @Override
+    public ControllerNode getNode(NodeId nodeId) {
+        Member member = membershipService.getMember(nodeId.id());
+        return member != null ? toControllerNode(member) : null;
+    }
+
+    @Override
+    public ControllerNode.State getState(NodeId nodeId) {
+        checkNotNull(nodeId, INSTANCE_ID_NULL);
+        return states.get(nodeId);
+    }
+
+    @Override
+    public Version getVersion(NodeId nodeId) {
+        checkNotNull(nodeId, INSTANCE_ID_NULL);
+        return versions.get(nodeId);
+    }
+
+    @Override
+    public Instant getLastUpdatedInstant(NodeId nodeId) {
+        checkNotNull(nodeId, INSTANCE_ID_NULL);
+        return updates.get(nodeId);
+    }
+
+    @Override
+    public void markFullyStarted(boolean started) {
+        ControllerNode.State state = started ? ControllerNode.State.READY : ControllerNode.State.ACTIVE;
+        states.put(localNode.id(), state);
+        membershipService.getLocalMember().properties().setProperty(STATE_KEY, state.name());
+    }
+
+    @Override
+    public ControllerNode addNode(NodeId nodeId, IpAddress ip, int tcpPort) {
+        checkNotNull(nodeId, INSTANCE_ID_NULL);
+        ControllerNode node = new DefaultControllerNode(nodeId, ip, tcpPort);
+        nodes.put(node.id(), node);
+        ControllerNode.State state = node.equals(localNode)
+            ? ControllerNode.State.ACTIVE : ControllerNode.State.INACTIVE;
+        membershipService.getMember(node.id().id()).properties().setProperty(STATE_KEY, state.name());
+        notifyDelegate(new ClusterEvent(ClusterEvent.Type.INSTANCE_ADDED, node));
+        return node;
+    }
+
+    @Override
+    public void removeNode(NodeId nodeId) {
+        checkNotNull(nodeId, INSTANCE_ID_NULL);
+        ControllerNode node = nodes.remove(nodeId);
+        if (node != null) {
+            states.remove(nodeId);
+            notifyDelegate(new ClusterEvent(ClusterEvent.Type.INSTANCE_REMOVED, node));
+        }
+    }
+}
diff --git a/core/store/primitives/src/main/java/org/onosproject/store/cluster/impl/package-info.java b/core/store/primitives/src/main/java/org/onosproject/store/cluster/impl/package-info.java
new file mode 100644
index 0000000..23bd9c4
--- /dev/null
+++ b/core/store/primitives/src/main/java/org/onosproject/store/cluster/impl/package-info.java
@@ -0,0 +1,20 @@
+/*
+ * Copyright 2018-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.
+ */
+
+/**
+ * Implementation classes for cluster stores.
+ */
+package org.onosproject.store.cluster.impl;
\ No newline at end of file
diff --git a/core/store/primitives/src/main/java/org/onosproject/store/cluster/messaging/impl/AtomixMessagingManager.java b/core/store/primitives/src/main/java/org/onosproject/store/cluster/messaging/impl/AtomixMessagingManager.java
new file mode 100644
index 0000000..46b27bf
--- /dev/null
+++ b/core/store/primitives/src/main/java/org/onosproject/store/cluster/messaging/impl/AtomixMessagingManager.java
@@ -0,0 +1,109 @@
+/*
+ * Copyright 2018-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.store.cluster.messaging.impl;
+
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.Executor;
+import java.util.function.BiConsumer;
+import java.util.function.BiFunction;
+
+import io.atomix.utils.net.Address;
+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.packet.IpAddress;
+import org.onosproject.store.cluster.messaging.Endpoint;
+import org.onosproject.store.cluster.messaging.MessagingService;
+import org.onosproject.store.impl.AtomixManager;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Atomix messaging manager.
+ */
+@Component(immediate = true)
+@Service
+public class AtomixMessagingManager implements MessagingService {
+
+    private final Logger log = LoggerFactory.getLogger(getClass());
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected AtomixManager atomixManager;
+
+    private io.atomix.cluster.messaging.MessagingService messagingService;
+
+    @Activate
+    public void activate() {
+        messagingService = atomixManager.getAtomix().getMessagingService();
+        log.info("Started");
+    }
+
+    @Deactivate
+    public void deactivate() {
+        log.info("Stopped");
+    }
+
+    private Address toAddress(Endpoint ep) {
+        return new Address(ep.host().toString(), ep.port(), ep.host().toInetAddress());
+    }
+
+    private Endpoint toEndpoint(Address address) {
+        return new Endpoint(IpAddress.valueOf(address.address()), address.port());
+    }
+
+    @Override
+    public CompletableFuture<Void> sendAsync(Endpoint ep, String type, byte[] payload) {
+        return messagingService.sendAsync(toAddress(ep), type, payload);
+    }
+
+    @Override
+    public CompletableFuture<byte[]> sendAndReceive(Endpoint ep, String type, byte[] payload) {
+        return messagingService.sendAndReceive(toAddress(ep), type, payload);
+    }
+
+    @Override
+    public CompletableFuture<byte[]> sendAndReceive(Endpoint ep, String type, byte[] payload, Executor executor) {
+        return messagingService.sendAndReceive(toAddress(ep), type, payload, executor);
+    }
+
+    @Override
+    public void registerHandler(String type, BiConsumer<Endpoint, byte[]> handler, Executor executor) {
+        BiConsumer<Address, byte[]> consumer = (address, payload) -> handler.accept(toEndpoint(address), payload);
+        messagingService.registerHandler(type, consumer, executor);
+    }
+
+    @Override
+    public void registerHandler(String type, BiFunction<Endpoint, byte[], byte[]> handler, Executor executor) {
+        BiFunction<Address, byte[], byte[]> function = (address, payload) ->
+            handler.apply(toEndpoint(address), payload);
+        messagingService.registerHandler(type, function, executor);
+    }
+
+    @Override
+    public void registerHandler(String type, BiFunction<Endpoint, byte[], CompletableFuture<byte[]>> handler) {
+        BiFunction<Address, byte[], CompletableFuture<byte[]>> function = (address, payload) ->
+            handler.apply(toEndpoint(address), payload);
+        messagingService.registerHandler(type, function);
+    }
+
+    @Override
+    public void unregisterHandler(String type) {
+        messagingService.unregisterHandler(type);
+    }
+}
diff --git a/core/store/primitives/src/main/java/org/onosproject/store/cluster/messaging/impl/package-info.java b/core/store/primitives/src/main/java/org/onosproject/store/cluster/messaging/impl/package-info.java
new file mode 100644
index 0000000..b88387a
--- /dev/null
+++ b/core/store/primitives/src/main/java/org/onosproject/store/cluster/messaging/impl/package-info.java
@@ -0,0 +1,20 @@
+/*
+ * Copyright 2018-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.
+ */
+
+/**
+ * Implementation classes for cluster messaging.
+ */
+package org.onosproject.store.cluster.messaging.impl;
\ No newline at end of file