diff --git a/srt/SrtSession.cpp b/srt/SrtSession.cpp
index ed7f4547..47b0b11f 100644
--- a/srt/SrtSession.cpp
+++ b/srt/SrtSession.cpp
@@ -47,7 +47,9 @@ EventPoller::Ptr SrtSession::queryPoller(const Buffer::Ptr &buffer) {
     }
     return nullptr;
 }
-
+void SrtSession::attachServer(const toolkit::Server &server){
+    SockUtil::setRecvBuf(getSock()->rawFD(),1024 * 1024);
+}
 void SrtSession::onRecv(const Buffer::Ptr &buffer) {
     uint8_t* data = (uint8_t*)buffer->data();
     size_t size = buffer->size();
diff --git a/srt/SrtSession.hpp b/srt/SrtSession.hpp
index 9478f1b9..401aae3c 100644
--- a/srt/SrtSession.hpp
+++ b/srt/SrtSession.hpp
@@ -16,7 +16,7 @@ public:
     void onRecv(const Buffer::Ptr &) override;
     void onError(const SockException &err) override;
     void onManager() override;
-
+    void attachServer(const toolkit::Server &server) override;
     static EventPoller::Ptr queryPoller(const Buffer::Ptr &buffer);
 
 private: