diff --git a/constants.go b/constants.go
index b62b525..1facbab 100644
--- a/constants.go
+++ b/constants.go
@@ -1,5 +1,7 @@
 package container
 
 const (
-	CONTAINER_CRAWLERS = "CONTAINER_CRAWLERS"
+	CONTAINER_CRAWLERS         = "CONTAINER_CRAWLERS"
+	CONTAINER_RPC_CLIENT_CODEC = "CONTAINER_RPC_CLIENT_CODEC"
+	CONTAINER_RPC_WRITE_CHAN   = "CONTAINER_RPC_WRITE_CHAN"
 )
diff --git a/service/ProbeService.go b/service/ProbeService.go
index 0d353f9..7d4d110 100644
--- a/service/ProbeService.go
+++ b/service/ProbeService.go
@@ -5,6 +5,7 @@ import (
 
 	cda "git.loafle.net/commons/di-go/annotation"
 	cdr "git.loafle.net/commons/di-go/registry"
+	crp "git.loafle.net/commons/rpc-go/protocol"
 
 	// For annotation
 	_ "git.loafle.net/overflow/commons-go/core/annotation"
@@ -18,6 +19,9 @@ func init() {
 
 type ProbeService struct {
 	cda.TypeAnnotation `annotation:"@overflow:RPCService()"`
+
+	RPCClientCodec crp.ClientCodec `annotation:"@Resource(name='CONTAINER_RPC_CLIENT_CODEC')"`
+	RPCWriteChan   chan<- []byte   `annotation:"@Resource(name='CONTAINER_RPC_WRITE_CHAN')"`
 }
 
 func (s *ProbeService) InitService() error {
@@ -38,6 +42,12 @@ func (s *ProbeService) DestroyService() {
 }
 
 func (s *ProbeService) Send(method string, params ...interface{}) error {
+	buf, err := s.RPCClientCodec.NewRequest(method, params, nil)
+	if nil != err {
+		return err
+	}
+
+	s.RPCWriteChan <- buf
 
 	return nil
 }
diff --git a/servlet/rpc-servlet.go b/servlet/rpc-servlet.go
index c216b28..145d12f 100644
--- a/servlet/rpc-servlet.go
+++ b/servlet/rpc-servlet.go
@@ -19,7 +19,8 @@ type RPCServlet interface {
 type RPCServlets struct {
 	cssn.Servlets
 
-	RPCInvoker crr.RPCInvoker
+	RPCInvoker   crr.RPCInvoker
+	RPCWriteChan <-chan []byte
 }
 
 func (s *RPCServlets) Handshake(servletCtx server.ServletCtx, conn net.Conn) error {
@@ -72,6 +73,8 @@ func (s *RPCServlets) Handle(servletCtx server.ServletCtx,
 			}
 
 			writeChan <- replyBuff
+		case buf := <-s.RPCWriteChan:
+			writeChan <- buf
 		case <-stopChan:
 			return
 		}