diff --git a/netcard.go b/netcard.go
index 8ead5b5..2b7f05e 100644
--- a/netcard.go
+++ b/netcard.go
@@ -208,7 +208,8 @@ func (nt *NetTunnel) SendFrames(stream gen.FrameService_SendFramesServer) error
 		if err != nil {
 			log.Panic(err)
 		}
-		nt.writer <- request.GetFrames()
+
+		nt.writer <- Decompress(request.GetFrames())
 
 		// frames := Decompress(request.GetFrames())
 		// if len(frames) > 0 {
diff --git a/rpc_client.go b/rpc_client.go
index f2b51be..bfca908 100644
--- a/rpc_client.go
+++ b/rpc_client.go
@@ -1,6 +1,7 @@
 package main
 
 import (
+	"bytes"
 	"context"
 	"log"
 	gen "slimming/proto/gen"
@@ -101,7 +102,7 @@ func (cli *RPCClient) run() {
 
 	// var ticker = time.NewTicker(time.Millisecond * 1)
 
-	// buf := bytes.NewBuffer(nil)
+	buffer := bytes.NewBuffer(nil)
 	for buf := range cli.Frames {
 
 		// select {
@@ -130,9 +131,11 @@ func (cli *RPCClient) run() {
 		// 	continue
 		// }
 
+		Compress(buffer, buf)
+
 		// 发到对面的网卡
 		err = stream.Send(&gen.RequestFrames{
-			Frames: buf,
+			Frames: buffer.Bytes(),
 		})
 		if err != nil {
 			log.Panic(err)
diff --git a/utils.go b/utils.go
index 8bfcfae..01b2692 100644
--- a/utils.go
+++ b/utils.go
@@ -3,49 +3,52 @@ package main
 import (
 	"bytes"
 	"encoding/binary"
-	"encoding/gob"
 	"io"
 	"log"
 	"net"
+
+	"github.com/klauspost/compress/zstd"
 )
 
-func Compress(writer io.Writer, data [][]byte) {
+func Compress(writer io.Writer, data []byte) {
 
 	// encode gob
-	enc := gob.NewEncoder(writer)
-	err := enc.Encode(data)
-	if err != nil {
-		log.Panic(err)
-	}
-
-	// zstd compress
-	// zenc, err := zstd.NewWriter(writer)
+	// enc := gob.NewEncoder(writer)
+	// err := enc.Encode(data)
 	// if err != nil {
 	// 	log.Panic(err)
 	// }
-	// err = zenc.Flush()
-	// if err != nil {
-	// 	log.Println(err)
-	// }
+
+	// zstd compress
+	zenc, err := zstd.NewWriter(writer)
+	if err != nil {
+		log.Panic(err)
+	}
+	zenc.Write(data)
+	err = zenc.Flush()
+	if err != nil {
+		log.Println(err)
+	}
 
 }
 
-func Decompress(data []byte) (frames [][]byte) {
+func Decompress(data []byte) (frames []byte) {
 	var err error
 
 	var buf = bytes.NewBuffer(data)
-	// var zdec *zstd.Decoder
-	// zdec, err = zstd.NewReader(buf)
-	// if err != nil {
-	// 	log.Panic(err)
-	// }
-	// zdec.Close()
-
-	dec := gob.NewDecoder(buf)
-	err = dec.Decode(&frames)
+	var zdec *zstd.Decoder
+	zdec, err = zstd.NewReader(buf)
 	if err != nil {
 		log.Panic(err)
 	}
+	zdec.Close()
+	frames = buf.Bytes()
+
+	// dec := gob.NewDecoder(buf)
+	// err = dec.Decode(&frames)
+	// if err != nil {
+	// 	log.Panic(err)
+	// }
 
 	return
 }