diff --git a/weed/command/volume.go b/weed/command/volume.go
index 1468aa2ee..ab3c63a9a 100644
--- a/weed/command/volume.go
+++ b/weed/command/volume.go
@@ -417,7 +417,7 @@ func (v VolumeServerOptions) startUdpService(volumeServer *weed_server.VolumeSer
 		conn, err := listener.Accept()
 		if err == nil {
 			glog.V(0).Infof("Client from %s", conn.RemoteAddr())
-			go volumeServer.HandleTcpConnection(conn)
+			go volumeServer.HandleUdpConnection(conn)
 		} else if isTemporaryError(err) {
 			continue
 		} else {
diff --git a/weed/server/volume_server_udp_handlers.go b/weed/server/volume_server_udp_handlers.go
index 2f7563f4c..b1f95446c 100644
--- a/weed/server/volume_server_udp_handlers.go
+++ b/weed/server/volume_server_udp_handlers.go
@@ -1,81 +1,48 @@
 package weed_server
 
 import (
+	"bufio"
 	"github.com/chrislusf/seaweedfs/weed/glog"
-	"pack.ag/tftp"
+	"io"
+	"net"
 )
 
-func (vs *VolumeServer) ServeTFTP(r tftp.ReadRequest) {
+func (vs *VolumeServer) HandleUdpConnection(c net.Conn) {
+	defer c.Close()
 
-	filename := r.Name()
+	glog.V(0).Infof("Serving writes from %s", c.RemoteAddr().String())
 
-	volumeId, n, err := vs.parseFileId(filename)
-	if err != nil {
-		glog.Errorf("parse file id %s: %v", filename, err)
-		return
-	}
+	bufReader := bufio.NewReaderSize(c, 1024*1024)
+	bufWriter := bufio.NewWriterSize(c, 1024*1024)
 
-	hasVolume := vs.store.HasVolume(volumeId)
-	_, hasEcVolume := vs.store.FindEcVolume(volumeId)
-
-	if hasVolume {
-		if _, err = vs.store.ReadVolumeNeedle(volumeId, n, nil); err != nil {
-			glog.Errorf("ReadVolumeNeedle %s: %v", filename, err)
-			return
-		}
-	}
-	if hasEcVolume {
-		if _, err = vs.store.ReadEcShardNeedle(volumeId, n); err != nil {
-			glog.Errorf("ReadEcShardNeedle %s: %v", filename, err)
-			return
-		}
-	}
-
-	if _, err = r.Write(n.Data); err != nil {
-		glog.Errorf("UDP Write data %s: %v", filename, err)
-		return
-	}
-
-}
-
-func (vs *VolumeServer) ReceiveTFTP(w tftp.WriteRequest) {
-
-	filename := w.Name()
-	println("+ ", filename)
-
-	// Get the file size
-	size, err := w.Size()
-
-	// Note: The size value is sent by the client, the client could send more data than
-	// it indicated in the size option. To be safe we'd want to allocate a buffer
-	// with the size we're expecting and use w.Read(buf) rather than ioutil.ReadAll.
-
-	if filename[0] == '-' {
-		err = vs.handleTcpDelete(filename[1:])
+	for {
+		cmd, err := bufReader.ReadString('\n')
 		if err != nil {
-			glog.Errorf("handleTcpDelete %s: %v", filename, err)
+			if err != io.EOF {
+				glog.Errorf("read command from %s: %v", c.RemoteAddr().String(), err)
+			}
 			return
 		}
-	}
+		cmd = cmd[:len(cmd)-1]
+		switch cmd[0] {
+		case '+':
+			fileId := cmd[1:]
+			err = vs.handleTcpPut(fileId, bufReader)
+			if err != nil {
+				glog.Errorf("put %s: %v", fileId, err)
+			}
+		case '-':
+			fileId := cmd[1:]
+			err = vs.handleTcpDelete(fileId)
+			if err != nil {
+				glog.Errorf("del %s: %v", fileId, err)
+			}
+		case '?':
+			fileId := cmd[1:]
+			err = vs.handleTcpGet(fileId, bufWriter)
+		case '!':
+		}
 
-	volumeId, n, err := vs.parseFileId(filename)
-	if err != nil {
-		glog.Errorf("parse file id %s: %v", filename, err)
-		return
 	}
 
-	volume := vs.store.GetVolume(volumeId)
-	if volume == nil {
-		glog.Errorf("volume %d not found", volumeId)
-		return
-	}
-
-	err = volume.StreamWrite(n, w, uint32(size))
-	if err != nil {
-		glog.Errorf("StreamWrite %s: %v", filename, err)
-		return
-	}
-
-	println("- ", filename)
-
 }
diff --git a/weed/wdclient/volume_udp_client.go b/weed/wdclient/volume_udp_client.go
index 93fd2b227..470d7a82d 100644
--- a/weed/wdclient/volume_udp_client.go
+++ b/weed/wdclient/volume_udp_client.go
@@ -2,9 +2,6 @@ package wdclient
 
 import (
 	"bufio"
-	"bytes"
-	"fmt"
-	"github.com/chrislusf/seaweedfs/weed/glog"
 	"github.com/chrislusf/seaweedfs/weed/pb"
 	"github.com/chrislusf/seaweedfs/weed/udptransfer"
 	"github.com/chrislusf/seaweedfs/weed/util"
@@ -70,45 +67,41 @@ func (c *VolumeUdpClient) PutFileChunk(volumeServerAddress string, fileId string
 		return parseErr
 	}
 
-	c.cp.Register("udp", udpAddress)
-	udpConn, getErr := c.cp.Get("udp", udpAddress)
-	if getErr != nil {
-		return fmt.Errorf("get connection to %s: %v", udpAddress, getErr)
+	listener, err := udptransfer.NewEndpoint(&udptransfer.Params{
+		LocalAddr:      "",
+		Bandwidth:      100,
+		FastRetransmit: true,
+		FlatTraffic:    true,
+		IsServ:         false,
+	})
+	if err != nil {
+		return err
 	}
-	conn := udpConn.RawConn().(*VolumeUdpConn)
-	defer func() {
-		if err != nil {
-			udpConn.DiscardConnection()
-		} else {
-			udpConn.ReleaseConnection()
-		}
-	}()
+
+	conn, err := listener.Dial(udpAddress)
+	if err != nil {
+		return err
+	}
+	defer conn.Close()
+
+	bufWriter := bufio.NewWriter(conn)
 
 	buf := []byte("+" + fileId + "\n")
-	_, err = conn.bufWriter.Write([]byte(buf))
+	_, err = bufWriter.Write([]byte(buf))
 	if err != nil {
 		return
 	}
 	util.Uint32toBytes(buf[0:4], fileSize)
-	_, err = conn.bufWriter.Write(buf[0:4])
+	_, err = bufWriter.Write(buf[0:4])
 	if err != nil {
 		return
 	}
-	_, err = io.Copy(conn.bufWriter, fileReader)
+	_, err = io.Copy(bufWriter, fileReader)
 	if err != nil {
 		return
 	}
-	conn.bufWriter.Write([]byte("!\n"))
-	conn.bufWriter.Flush()
-
-	ret, _, err := conn.bufReader.ReadLine()
-	if err != nil {
-		glog.V(0).Infof("upload by udp: %v", err)
-		return
-	}
-	if !bytes.HasPrefix(ret, []byte("+OK")) {
-		glog.V(0).Infof("upload by udp: %v", string(ret))
-	}
+	bufWriter.Write([]byte("!\n"))
+	bufWriter.Flush()
 
 	return nil
 }