diff --git a/node/node.go b/node/node.go
index 358c99764..cfce00b99 100644
--- a/node/node.go
+++ b/node/node.go
@@ -1,10 +1,11 @@
 package node
 
 import (
-	"github.com/simple-rules/harmony-benchmark/crypto/pki"
 	"net"
 	"sync"
 
+	"github.com/simple-rules/harmony-benchmark/crypto/pki"
+
 	"github.com/simple-rules/harmony-benchmark/blockchain"
 	"github.com/simple-rules/harmony-benchmark/client"
 	"github.com/simple-rules/harmony-benchmark/consensus"
@@ -67,11 +68,11 @@ func (node *Node) StartServer(port string) {
 
 func (node *Node) listenOnPort(port string) {
 	listen, err := net.Listen("tcp4", ":"+port)
-	defer func() {
+	defer func(listen net.Listener) {
 		if listen != nil {
 			listen.Close()
 		}
-	}()
+	}(listen)
 	if err != nil {
 		node.log.Error("Socket listen port failed", "port", port, "err", err)
 		return
diff --git a/node/node_handler.go b/node/node_handler.go
index 7b42a1833..2b7df39a4 100644
--- a/node/node_handler.go
+++ b/node/node_handler.go
@@ -3,7 +3,6 @@ package node
 import (
 	"bytes"
 	"encoding/gob"
-	"log"
 	"net"
 	"os"
 	"strconv"
@@ -82,6 +81,8 @@ func (node *Node) NodeHandler(conn net.Conn) {
 					node.Client.UpdateBlocks(*blocks)
 				}
 			}
+		case proto_node.BLOCKCHAIN_SYNC:
+			node.transactionMessageHandler(msgPayload)
 		case proto_node.CLIENT:
 			clientMsgType := proto_node.ClientMessageType(msgPayload[0])
 			switch clientMsgType {
@@ -155,7 +156,6 @@ func (node *Node) NodeHandler(conn net.Conn) {
 func (node *Node) transactionMessageHandler(msgPayload []byte) {
 	txMessageType := proto_node.TransactionMessageType(msgPayload[0])
 
-	log.Println(txMessageType)
 	switch txMessageType {
 	case proto_node.SEND:
 		txDecoder := gob.NewDecoder(bytes.NewReader(msgPayload[1:])) // skip the SEND messge type
diff --git a/p2p/message_reader.go b/p2p/helper.go
similarity index 84%
rename from p2p/message_reader.go
rename to p2p/helper.go
index e04e4876b..493f4831d 100644
--- a/p2p/message_reader.go
+++ b/p2p/helper.go
@@ -94,3 +94,23 @@ ILOOP:
 	}
 	return contentBuf.Bytes(), nil
 }
+
+func CreateMessage(msgType byte, data []byte) []byte {
+	buffer := bytes.NewBuffer([]byte{})
+
+	buffer.WriteByte(msgType)
+
+	fourBytes := make([]byte, 4)
+	binary.BigEndian.PutUint32(fourBytes, uint32(len(data)))
+	buffer.Write(fourBytes)
+
+	buffer.Write(data)
+	return buffer.Bytes()
+}
+
+func SendMessageContent(conn net.Conn, data []byte) {
+	msgToSend := CreateMessage(byte(1), data)
+	w := bufio.NewWriter(conn)
+	w.Write(msgToSend)
+	w.Flush()
+}
diff --git a/p2p/helper_test.go b/p2p/helper_test.go
new file mode 100644
index 000000000..da0062b5f
--- /dev/null
+++ b/p2p/helper_test.go
@@ -0,0 +1,53 @@
+package p2p
+
+import (
+	"bufio"
+	"net"
+	"testing"
+)
+
+func setUpTestServer(times int, t *testing.T, conCreated chan bool) {
+	t.Parallel()
+	ln, _ := net.Listen("tcp", ":8081")
+	conCreated <- true
+	conn, _ := ln.Accept()
+	defer conn.Close()
+
+	var (
+		w = bufio.NewWriter(conn)
+	)
+	for times > 0 {
+		times--
+		data, err := ReadMessageContent(conn)
+		if err != nil {
+			t.Fatalf("error when ReadMessageContent %v", err)
+		}
+		data = CreateMessage(byte(1), data)
+		w.Write(data)
+		w.Flush()
+	}
+}
+func TestNewNewNode(t *testing.T) {
+	times := 100
+	conCreated := make(chan bool)
+	go setUpTestServer(times, t, conCreated)
+	<-conCreated
+
+	conn, _ := net.Dial("tcp", "127.0.0.1:8081")
+
+	for times > 0 {
+		times--
+
+		myMsg := "minhdoan"
+		SendMessageContent(conn, []byte(myMsg))
+
+		data, err := ReadMessageContent(conn)
+		if err != nil {
+			t.Error("got an error when trying to receive an expected message from server.")
+		}
+		if string(data) != myMsg {
+			t.Error("did not receive expected message")
+		}
+	}
+	conn.Close()
+}
diff --git a/proto/node/node.go b/proto/node/node.go
index c4a9e5954..ba2481461 100644
--- a/proto/node/node.go
+++ b/proto/node/node.go
@@ -3,6 +3,7 @@ package node
 import (
 	"bytes"
 	"encoding/gob"
+
 	"github.com/simple-rules/harmony-benchmark/blockchain"
 	"github.com/simple-rules/harmony-benchmark/p2p"
 	"github.com/simple-rules/harmony-benchmark/proto"
@@ -16,6 +17,7 @@ const (
 	BLOCK
 	CLIENT
 	CONTROL
+	BLOCKCHAIN_SYNC
 	// TODO: add more types
 )