diff --git a/tap.go b/tap.go
index 4035019..0ebf6d8 100644
--- a/tap.go
+++ b/tap.go
@@ -21,6 +21,10 @@ import (
 	"google.golang.org/grpc/credentials/insecure"
 )
 
+type ExchangeBuffer struct {
+	BytesArray [][]byte
+}
+
 type NetCard struct {
 	FrameChan chan []byte
 	ifce      *water.Interface
@@ -30,7 +34,7 @@ type NetCard struct {
 }
 
 type RPCClient struct {
-	FrameChan chan [][]byte
+	FrameChan chan *ExchangeBuffer
 	conn      *grpc.ClientConn
 }
 
@@ -142,7 +146,7 @@ func (nc *NetCard) runRead() {
 
 	for {
 
-		var bytesMap map[string]*[][]byte = make(map[string]*[][]byte)
+		var bytesMap map[string]*ExchangeBuffer = make(map[string]*ExchangeBuffer)
 
 		var ok bool
 		var isLoop int32 = 1
@@ -183,30 +187,28 @@ func (nc *NetCard) runRead() {
 
 			log.Printf("Ethertype: % x %v\n", rframe.Ethertype(), waterutil.IsIPv4(rframe))
 
-			var buffer *[][]byte
-
+			var buffer *ExchangeBuffer
 			if buffer, ok = bytesMap[realAddr]; !ok {
-				mbuffer := make([][]byte, 0, 100)
-				buffer = &mbuffer
+				buffer = &ExchangeBuffer{BytesArray: make([][]byte, 0, 1000)}
 				bytesMap[realAddr] = buffer
 			}
 
-			*buffer = append(*buffer, []byte(rframe))
+			buffer.BytesArray = append(buffer.BytesArray, []byte(rframe))
 		}
 
 		for dst, buffer := range bytesMap {
 
 			var cli *RPCClient
 			if cli, ok = nc.clientMap[dst]; !ok {
-				cli = &RPCClient{FrameChan: make(chan [][]byte, 1000)}
+
+				cli = &RPCClient{FrameChan: make(chan *ExchangeBuffer)}
 				nc.clientMap[dst] = cli
 			}
 
 			if cli.conn == nil {
 				cli.connect(dst)
 			} else {
-				cli.FrameChan <- *buffer // 网卡数据 发到对方
-				*buffer = (*buffer)[0:]
+				cli.FrameChan <- buffer // 网卡数据 发到对方
 			}
 
 		}
@@ -226,6 +228,7 @@ func (nc *NetCard) runWrite() {
 
 	var buf = bytes.NewBuffer(nil)
 	for wframe := range nc.FrameChan {
+
 		log.Printf("get wframes bytes len: %d", len(wframe))
 
 		buf.Reset()