diff --git a/test/case4/src/testcase.c b/test/case4/src/testcase.c
index 48a2406..8c57608 100644
--- a/test/case4/src/testcase.c
+++ b/test/case4/src/testcase.c
@@ -67,6 +67,7 @@ typedef struct tSpuOamBaseDelaySetReq {
     uint8_t  u8rsv[3];
 	uint32_t u32dl_frame_offset;
 	uint32_t u32ul_frame_offset;
+	uint32_t u32ul_data_frame_offset;
 } SpuOamBaseDelaySetReq_t;
 
 typedef struct tSpuOamBaseDelaySetRsp {
@@ -86,6 +87,7 @@ typedef struct tSpuOamBaseDelayQryRsp {
     uint8_t  u8rsv[2];
 	uint32_t u32dl_frame_offset;
 	uint32_t u32ul_frame_offset;
+	uint32_t u32ul_data_frame_offset;
 } SpuOamBaseDelayQryRsp_t;
 
 typedef struct tSpuOamFiberDelayQryReq {
@@ -308,8 +310,9 @@ void oam_msg_base_delay_set_test()
     stOamMsg.msgLen    = size;
 
     stOamDelayReq.u8fiber_port = 2;
-    stOamDelayReq.u32dl_frame_offset = 0xab;
-    stOamDelayReq.u32ul_frame_offset = 0xcd;
+    stOamDelayReq.u32dl_frame_offset      = 0xab;
+    stOamDelayReq.u32ul_frame_offset      = 0xcd;
+    stOamDelayReq.u32ul_data_frame_offset = 0xef;
 
     //memset(buf, 0, size);
     //memcpy((uint8_t *)stOamMsg.msgData, (uint8_t *)&stOamDelayReq, sizeof(SpuOamBaseDelaySetReq_t));