diff --git a/interop/run_endpoint.sh b/interop/run_endpoint.sh
index 88d6f2b4f..4011d4fe2 100644
--- a/interop/run_endpoint.sh
+++ b/interop/run_endpoint.sh
@@ -4,7 +4,7 @@
 /setup.sh
 
 case $TESTCASE in
-    versionnegotiation|handshake|longrtt|transfer|zerortt|multiconnect|chacha20|resumption|http3|retry|keyupdate)
+    versionnegotiation|handshake|longrtt|transfer|zerortt|multiconnect|chacha20|resumption|http3|retry|keyupdate|mphandshake|mptransfer|mppathabandon|mppathstatus)
         :
         ;;
     *)
@@ -62,7 +62,19 @@ if [ "$ROLE" == "client" ]; then
     elif [ "$TESTCASE" == "keyupdate" ]; then
         echo "./demo_client $ARGS -U $REQUESTS -u 30"
         ./demo_client $ARGS -U "$REQUESTS" -u 30
+    
+    elif [ "$TESTCASE" == "mphandshake" ] || [ "$TESTCASE" == "mptransfer" ]; then
+        echo "./demo_client $ARGS -U $REQUESTS -M -i eth0 -i eth0 -w 3000"
+        ./demo_client $ARGS -U "$REQUESTS" -M -i eth0 -i eth0 -w 3000
 
+    elif [ "$TESTCASE" == "mppathabandon" ]; then
+        echo "./demo_client $ARGS -U $REQUESTS -M -i eth0 -i eth0 -w 3000 -Z 1000"
+        ./demo_client $ARGS -U "$REQUESTS" -M -i eth0 -i eth0 -w 3000 -Z 1000
+    
+    elif [ "$TESTCASE" == "mppathstatus" ]; then
+        echo "./demo_client $ARGS -U $REQUESTS -M -i eth0 -i eth0 -w 3000 -b"
+        ./demo_client $ARGS -U "$REQUESTS" -M -i eth0 -i eth0 -w 3000 -b
+    
     # common testcase
     else
         echo -e "./demo_client $ARGS -U \"$REQUESTS\"\n"
@@ -85,7 +97,7 @@ elif [ "$ROLE" == "server" ]; then
 
     #cp -r /www /logs
 
-    ARGS="-l d -L "$LOG_DIR/server.log" -p 443 -D "/www" -k $SSLKEYLOGFILE"
+    ARGS="-l d -L "$LOG_DIR/server.log" -p 443 -D "/www" -k $SSLKEYLOGFILE -M"
     echo "./demo_server $ARGS"
     ./demo_server $ARGS
 fi
diff --git a/scripts/case_test.sh b/scripts/case_test.sh
index 9d939f0ea..9782ab3f6 100755
--- a/scripts/case_test.sh
+++ b/scripts/case_test.sh
@@ -3475,7 +3475,6 @@ if [ "$cli_res1" == "1" ] && [ -n "$cli_res2" ] \
 else
     echo ">>>>>>>> pass:0"
     case_print_result "h3_ext_finish_bytestream_during_transmission" "fail"
-    exit
 fi
 
 # close bytestream during transmission (-x 305)
diff --git a/src/tls/xqc_crypto.c b/src/tls/xqc_crypto.c
index 02b5300fb..9cd6f18be 100644
--- a/src/tls/xqc_crypto.c
+++ b/src/tls/xqc_crypto.c
@@ -661,9 +661,9 @@ xqc_crypto_derive_updated_keys(xqc_crypto_t *crypto, xqc_key_type_t type)
 
     /* update application traffic secret */
     static uint8_t LABEL[] = "quic ku";
-    uint8_t dest_buf[INITIAL_SECRET_MAX_LEN];
+    uint8_t dest_buf[XQC_MAX_KNP_LEN];
 
-    ret = xqc_hkdf_expand_label(dest_buf, INITIAL_SECRET_MAX_LEN,
+    ret = xqc_hkdf_expand_label(dest_buf, current_ckm->secret.len,
                                 current_ckm->secret.base, current_ckm->secret.len,
                                 LABEL, xqc_lengthof(LABEL), &crypto->md);
     if (ret != XQC_OK) {
diff --git a/src/transport/xqc_conn.c b/src/transport/xqc_conn.c
index d98ee8f73..63c1da34f 100644
--- a/src/transport/xqc_conn.c
+++ b/src/transport/xqc_conn.c
@@ -322,7 +322,7 @@ xqc_conn_init_trans_settings(xqc_connection_t *conn)
     xqc_conn_set_default_settings(rs);
 
     /* set local default setting values */
-    ls->max_streams_bidi = 1024;
+    ls->max_streams_bidi = 128;
     ls->max_stream_data_bidi_remote = XQC_MAX_RECV_WINDOW;
 
     if (conn->conn_settings.enable_stream_rate_limit) {
@@ -332,7 +332,7 @@ xqc_conn_init_trans_settings(xqc_connection_t *conn)
         ls->max_stream_data_bidi_local = XQC_MAX_RECV_WINDOW;
     }
 
-    ls->max_streams_uni = 1024;
+    ls->max_streams_uni = 128;
     ls->max_stream_data_uni = XQC_MAX_RECV_WINDOW;
 
     if (conn->conn_settings.recv_rate_bytes_per_sec) {
@@ -368,11 +368,14 @@ xqc_conn_init_flow_ctl(xqc_connection_t *conn)
 {
     xqc_conn_flow_ctl_t *flow_ctl = &conn->conn_flow_ctl;
     xqc_trans_settings_t * settings = & conn->local_settings;
-    flow_ctl->fc_max_data_can_send = settings->max_data; /* replace with the value specified by peer after handshake */
+
+    /* TODO: send params are inited to be zero, until zerortt inited or handshake done */
+    flow_ctl->fc_max_data_can_send = 1024 * 1024; /* replace with the value specified by peer after handshake */
+    flow_ctl->fc_max_streams_bidi_can_send = 16; /* replace with the value specified by peer after handshake */
+    flow_ctl->fc_max_streams_uni_can_send = 16; /* replace with the value specified by peer after handshake */
+
     flow_ctl->fc_max_data_can_recv = settings->max_data;
-    flow_ctl->fc_max_streams_bidi_can_send = settings->max_streams_bidi; /* replace with the value specified by peer after handshake */
     flow_ctl->fc_max_streams_bidi_can_recv = settings->max_streams_bidi;
-    flow_ctl->fc_max_streams_uni_can_send = settings->max_streams_uni; /* replace with the value specified by peer after handshake */
     flow_ctl->fc_max_streams_uni_can_recv = settings->max_streams_uni;
     flow_ctl->fc_data_sent = 0;
     flow_ctl->fc_data_recved = 0;
@@ -1428,7 +1431,7 @@ xqc_on_packets_send_burst(xqc_connection_t *conn, xqc_path_ctx_t *path, ssize_t
                 xqc_pacing_on_packet_sent(&send_ctl->ctl_pacing, packet_out->po_used_size);
             }
 
-            xqc_send_ctl_on_packet_sent(send_ctl, pn_ctl, packet_out, now);
+            xqc_send_ctl_on_packet_sent(send_ctl, pn_ctl, packet_out, now, sent);
             xqc_path_send_buffer_remove(path, packet_out);
             if (XQC_IS_ACK_ELICITING(packet_out->po_frame_types)) {
                 xqc_send_queue_insert_unacked(packet_out,
@@ -1919,7 +1922,7 @@ xqc_send_packet_with_pn(xqc_connection_t *conn, xqc_path_ctx_t *path, xqc_packet
     pn_ctl->ctl_packet_number[packet_out->po_pkt.pkt_pns]++;
 
     xqc_conn_log_sent_packet(conn, packet_out, now);
-    xqc_send_ctl_on_packet_sent(path->path_send_ctl, pn_ctl, packet_out, now);
+    xqc_send_ctl_on_packet_sent(path->path_send_ctl, pn_ctl, packet_out, now, sent);
     return sent;
 }
 
diff --git a/src/transport/xqc_engine.c b/src/transport/xqc_engine.c
index 7f8b2a6d7..779d880e7 100644
--- a/src/transport/xqc_engine.c
+++ b/src/transport/xqc_engine.c
@@ -754,6 +754,7 @@ xqc_engine_process_conn(xqc_connection_t *conn, xqc_usec_t now)
     }
     XQC_CHECK_IMMEDIATE_CLOSE();
 
+
     ret = xqc_conn_try_add_new_conn_id(conn, 0);
     if (ret) {
         xqc_log(conn->log, XQC_LOG_ERROR, "|xqc_conn_try_add_new_conn_id error|");
diff --git a/src/transport/xqc_packet.h b/src/transport/xqc_packet.h
index 3427e6af7..b7789613a 100644
--- a/src/transport/xqc_packet.h
+++ b/src/transport/xqc_packet.h
@@ -16,7 +16,7 @@
 #define XQC_MSS                             (XQC_QUIC_MAX_MSS + XQC_ACK_SPACE)
 
 /* max 0rtt packet count sent by client */
-#define XQC_PACKET_0RTT_MAX_COUNT           30
+#define XQC_PACKET_0RTT_MAX_COUNT           64
 /* max 0rtt packet count buffered by server before Initial packet received */
 #define XQC_UNDECRYPT_0RTT_MAX_BEFORE_INIT  10
 /* max buffered packet count */
diff --git a/src/transport/xqc_send_ctl.c b/src/transport/xqc_send_ctl.c
index b9f9e3037..206abda09 100644
--- a/src/transport/xqc_send_ctl.c
+++ b/src/transport/xqc_send_ctl.c
@@ -610,7 +610,7 @@ xqc_send_ctl_update_cwnd_limited(xqc_send_ctl_t *send_ctl)
  * OnPacketSent
  */
 void
-xqc_send_ctl_on_packet_sent(xqc_send_ctl_t *send_ctl, xqc_pn_ctl_t *pn_ctl, xqc_packet_out_t *packet_out, xqc_usec_t now)
+xqc_send_ctl_on_packet_sent(xqc_send_ctl_t *send_ctl, xqc_pn_ctl_t *pn_ctl, xqc_packet_out_t *packet_out, xqc_usec_t now, ssize_t sent)
 {
     xqc_pkt_num_space_t pns = packet_out->po_pkt.pkt_pns;
 
@@ -646,7 +646,7 @@ xqc_send_ctl_on_packet_sent(xqc_send_ctl_t *send_ctl, xqc_pn_ctl_t *pn_ctl, xqc_
         pn_ctl->ctl_largest_sent[pns] = packet_out->po_pkt.pkt_num;
     }
 
-    send_ctl->ctl_bytes_send += packet_out->po_used_size;
+    send_ctl->ctl_bytes_send += sent;
 
     if (packet_out->po_largest_ack > 0) {
         xqc_ack_sent_record_add(&pn_ctl->ack_sent_record[pns], packet_out, send_ctl->ctl_srtt, now);
diff --git a/src/transport/xqc_send_ctl.h b/src/transport/xqc_send_ctl.h
index 7ca18f30b..13a895c24 100644
--- a/src/transport/xqc_send_ctl.h
+++ b/src/transport/xqc_send_ctl.h
@@ -195,7 +195,7 @@ void xqc_send_ctl_decrease_inflight(xqc_connection_t *conn, xqc_packet_out_t *pa
 
 void xqc_send_ctl_on_pns_discard(xqc_send_ctl_t *send_ctl, xqc_pkt_num_space_t pns);
 
-void xqc_send_ctl_on_packet_sent(xqc_send_ctl_t *send_ctl, xqc_pn_ctl_t *pn_ctl, xqc_packet_out_t *packet_out, xqc_usec_t now);
+void xqc_send_ctl_on_packet_sent(xqc_send_ctl_t *send_ctl, xqc_pn_ctl_t *pn_ctl, xqc_packet_out_t *packet_out, xqc_usec_t now, ssize_t sent);
 
 int xqc_send_ctl_on_ack_received (xqc_send_ctl_t *send_ctl, xqc_pn_ctl_t *pn_ctl, xqc_send_queue_t *send_queue, xqc_ack_info_t *const ack_info, xqc_usec_t ack_recv_time, xqc_bool_t ack_on_same_path);