diff --git a/core/store/primitives/src/main/java/org/onosproject/store/primitives/impl/CopycatTransportConnection.java b/core/store/primitives/src/main/java/org/onosproject/store/primitives/impl/CopycatTransportConnection.java
new file mode 100644
index 0000000..7b5d42a
--- /dev/null
+++ b/core/store/primitives/src/main/java/org/onosproject/store/primitives/impl/CopycatTransportConnection.java
@@ -0,0 +1,275 @@
+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * 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.primitives.impl;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+import java.util.Map;
+import java.util.Objects;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.function.Consumer;
+
+import org.apache.commons.io.IOUtils;
+import org.onlab.packet.IpAddress;
+import org.onlab.util.Tools;
+import org.onosproject.store.cluster.messaging.Endpoint;
+import org.onosproject.store.cluster.messaging.MessagingService;
+
+import com.google.common.base.MoreObjects;
+import com.google.common.base.Throwables;
+import com.google.common.collect.Maps;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import io.atomix.catalyst.transport.Address;
+import io.atomix.catalyst.transport.Connection;
+import io.atomix.catalyst.transport.MessageHandler;
+import io.atomix.catalyst.transport.TransportException;
+import io.atomix.catalyst.util.Assert;
+import io.atomix.catalyst.util.Listener;
+import io.atomix.catalyst.util.Listeners;
+import io.atomix.catalyst.util.ReferenceCounted;
+import io.atomix.catalyst.util.concurrent.ThreadContext;
+
+/**
+ * {@link Connection} implementation for CopycatTransport.
+ */
+public class CopycatTransportConnection implements Connection {
+
+    private final Listeners<Throwable> exceptionListeners = new Listeners<>();
+    private final Listeners<Connection> closeListeners = new Listeners<>();
+
+    static final byte SUCCESS = 0x03;
+    static final byte FAILURE = 0x04;
+
+    private final long connectionId;
+    private CopycatTransport.Mode mode;
+    private final Address remoteAddress;
+    private final MessagingService messagingService;
+    private final String outboundMessageSubject;
+    private final String inboundMessageSubject;
+    private final ThreadContext context;
+    private final Map<Class<?>, InternalHandler> handlers = Maps.newConcurrentMap();
+    private final AtomicInteger messagesSent = new AtomicInteger(0);
+    private final AtomicInteger sendFailures = new AtomicInteger(0);
+    private final AtomicInteger messagesReceived = new AtomicInteger(0);
+    private final AtomicInteger receiveFailures = new AtomicInteger(0);
+
+    CopycatTransportConnection(long connectionId,
+            CopycatTransport.Mode mode,
+            String clusterName,
+            Address address,
+            MessagingService messagingService,
+            ThreadContext context) {
+        this.connectionId = connectionId;
+        this.mode = checkNotNull(mode);
+        this.remoteAddress = checkNotNull(address);
+        this.messagingService = checkNotNull(messagingService);
+        if (mode == CopycatTransport.Mode.CLIENT) {
+            this.outboundMessageSubject = String.format("onos-copycat-%s", clusterName);
+            this.inboundMessageSubject = String.format("onos-copycat-%s-%d", clusterName, connectionId);
+        } else {
+            this.outboundMessageSubject = String.format("onos-copycat-%s-%d", clusterName, connectionId);
+            this.inboundMessageSubject = String.format("onos-copycat-%s", clusterName);
+        }
+        this.context = checkNotNull(context);
+    }
+
+    public void setBidirectional() {
+        messagingService.registerHandler(inboundMessageSubject, (sender, payload) -> {
+            try (DataInputStream input = new DataInputStream(new ByteArrayInputStream(payload))) {
+                if (input.readLong() !=  connectionId) {
+                    throw new IllegalStateException("Invalid connection Id");
+                }
+                return handle(IOUtils.toByteArray(input));
+            } catch (IOException e) {
+                Throwables.propagate(e);
+                return null;
+            }
+        });
+    }
+
+    @Override
+    public <T, U> CompletableFuture<U> send(T message) {
+        ThreadContext context = ThreadContext.currentContextOrThrow();
+        CompletableFuture<U> result = new CompletableFuture<>();
+        try (ByteArrayOutputStream baos = new ByteArrayOutputStream()) {
+            new DataOutputStream(baos).writeLong(connectionId);
+            context.serializer().writeObject(message, baos);
+            if (message instanceof ReferenceCounted) {
+                ((ReferenceCounted<?>) message).release();
+            }
+            messagingService.sendAndReceive(toEndpoint(remoteAddress),
+                                            outboundMessageSubject,
+                                            baos.toByteArray(),
+                                            context.executor())
+                    .whenComplete((r, e) -> {
+                        if (e == null) {
+                            messagesSent.incrementAndGet();
+                        } else {
+                            sendFailures.incrementAndGet();
+                        }
+                        handleResponse(r, e, result, context);
+                    });
+        } catch (Exception e) {
+            result.completeExceptionally(new TransportException("Failed to send request", e));
+        }
+        return result;
+    }
+
+    private <T> void handleResponse(byte[] response,
+                                    Throwable error,
+                                    CompletableFuture<T> future,
+                                    ThreadContext context) {
+        if (error != null) {
+            context.execute(() -> future.completeExceptionally(error));
+            return;
+        }
+        checkNotNull(response);
+        InputStream input = new ByteArrayInputStream(response);
+        try {
+            byte status = (byte) input.read();
+            if (status == FAILURE) {
+                Throwable t = context.serializer().readObject(input);
+                context.execute(() -> future.completeExceptionally(t));
+            } else {
+                context.execute(() -> future.complete(context.serializer().readObject(input)));
+            }
+        } catch (IOException e) {
+            context.execute(() -> future.completeExceptionally(e));
+        }
+    }
+
+    @Override
+    public <T, U> Connection handler(Class<T> type, MessageHandler<T, U> handler) {
+        Assert.notNull(type, "type");
+        handlers.put(type, new InternalHandler(handler, ThreadContext.currentContextOrThrow()));
+        return null;
+    }
+
+   public CompletableFuture<byte[]> handle(byte[] message) {
+        try {
+            Object request = context.serializer().readObject(new ByteArrayInputStream(message));
+            InternalHandler handler = handlers.get(request.getClass());
+            if (handler == null) {
+                return Tools.exceptionalFuture(new IllegalStateException(
+                        "No handler registered for " + request.getClass()));
+            }
+            return handler.handle(request).handle((result, error) -> {
+                if (error == null) {
+                    messagesReceived.incrementAndGet();
+                } else {
+                    receiveFailures.incrementAndGet();
+                }
+                try (ByteArrayOutputStream baos = new ByteArrayOutputStream()) {
+                    baos.write(error != null ? FAILURE : SUCCESS);
+                    context.serializer().writeObject(error != null ? error : result, baos);
+                    return baos.toByteArray();
+                } catch (IOException e) {
+                    Throwables.propagate(e);
+                    return null;
+                }
+            });
+        } catch (Exception e) {
+            return Tools.exceptionalFuture(e);
+        }
+    }
+
+    @Override
+    public Listener<Throwable> exceptionListener(Consumer<Throwable> listener) {
+        return exceptionListeners.add(listener);
+    }
+
+    @Override
+    public Listener<Connection> closeListener(Consumer<Connection> listener) {
+        return closeListeners.add(listener);
+    }
+
+    @Override
+    public CompletableFuture<Void> close() {
+        // TODO: need to unregister message handler
+        closeListeners.forEach(listener -> listener.accept(this));
+        if (mode == CopycatTransport.Mode.CLIENT) {
+            messagingService.unregisterHandler(inboundMessageSubject);
+        }
+        return CompletableFuture.completedFuture(null);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(connectionId);
+    }
+
+    @Override
+    public boolean equals(Object other) {
+        if (!(other instanceof CopycatTransportConnection)) {
+            return false;
+        }
+
+        return connectionId == ((CopycatTransportConnection) other).connectionId;
+    }
+
+    @Override
+    public String toString() {
+        return MoreObjects.toStringHelper(getClass())
+                .add("id", connectionId)
+                .add("sent", messagesSent.get())
+                .add("received", messagesReceived.get())
+                .add("sendFailures", sendFailures.get())
+                .add("receiveFailures", receiveFailures.get())
+                .toString();
+    }
+
+    private Endpoint toEndpoint(Address address) {
+        try {
+            return new Endpoint(IpAddress.valueOf(InetAddress.getByName(address.host())), address.port());
+        } catch (UnknownHostException e) {
+            Throwables.propagate(e);
+            return null;
+        }
+    }
+
+    @SuppressWarnings("rawtypes")
+    private final class InternalHandler {
+
+        private final MessageHandler handler;
+        private final ThreadContext context;
+
+        private InternalHandler(MessageHandler handler, ThreadContext context) {
+            this.handler = handler;
+            this.context = context;
+        }
+
+        @SuppressWarnings("unchecked")
+        public CompletableFuture<Object> handle(Object message) {
+            CompletableFuture<Object> answer = new CompletableFuture<>();
+            context.execute(() -> handler.handle(message).whenComplete((r, e) -> {
+                if (e != null) {
+                    answer.completeExceptionally((Throwable) e);
+                } else {
+                    answer.complete(r);
+                }
+            }));
+            return answer;
+        }
+    }
+}