diff --git a/plugin/business/traffic-mirror/include/traffic_mirror.h b/plugin/business/traffic-mirror/include/traffic_mirror.h
index ca1525f..bae16df 100644
--- a/plugin/business/traffic-mirror/include/traffic_mirror.h
+++ b/plugin/business/traffic-mirror/include/traffic_mirror.h
@@ -54,7 +54,7 @@ struct profile_table_ex_data
 struct traffic_mirror_ethdev_pcap
 {
     pcap_t * pcap_device_handle;
-    char * sendbuf[TFE_THREAD_MAX];
+    char sendbuf[TFE_THREAD_MAX][ETHER_MAX_LEN];
 };
 
 struct traffic_mirror_ethdev_mr4
@@ -78,10 +78,6 @@ struct traffic_mirror_ethdev
     unsigned int en_offload_vlan;
     unsigned int en_offload_ip_cksum;
     unsigned int en_offload_tcp_cksum;
-
-    /* PRIVATE, FOR PCAP */
-    pcap_t * pcap_device_handle;
-
     char local_ether_addr[6];
 
     enum traffic_mirror_ethdev_type type;
diff --git a/plugin/business/traffic-mirror/src/entry.cpp b/plugin/business/traffic-mirror/src/entry.cpp
index 3c31394..16bea98 100644
--- a/plugin/business/traffic-mirror/src/entry.cpp
+++ b/plugin/business/traffic-mirror/src/entry.cpp
@@ -465,6 +465,15 @@ int traffic_mirror_init(struct tfe_proxy * proxy)
     const char * profile = "./conf/pangu/pangu_pxy.conf";
     const char * section = "maat";
 
+    unsigned int is_enable = 1;
+    MESA_load_profile_uint_def(profile, "traffic_mirror", "enable", &is_enable, 1);
+
+    if (!is_enable)
+    {
+        TFE_LOG_INFO(instance->logger, "traffic_mirror is disabled.");
+        return -1;
+    }
+
 	/* INIT DECRYPT MIRROR INSTANCE */
     instance->logger = tfe_proxy_get_error_logger();
     instance->nr_threads = tfe_proxy_get_work_thread_count();
diff --git a/plugin/business/traffic-mirror/src/ethdev.cpp b/plugin/business/traffic-mirror/src/ethdev.cpp
index e5824ea..b67e36b 100644
--- a/plugin/business/traffic-mirror/src/ethdev.cpp
+++ b/plugin/business/traffic-mirror/src/ethdev.cpp
@@ -101,7 +101,7 @@ static int pcap_ethdev_send_finish(struct traffic_mirror_ethdev * ethdev, unsign
     assert(detail_pcap != NULL && detail_pcap->sendbuf[tid] != NULL);
 
     char * sendbuf = detail_pcap->sendbuf[tid];
-    return pcap_sendpacket(ethdev->pcap_device_handle, (const u_char *)sendbuf, pktlen);
+    return pcap_sendpacket(detail_pcap->pcap_device_handle, (const u_char *)sendbuf, pktlen);
 }
 
 static void pcap_ethdev_send_abort(struct traffic_mirror_ethdev * ethdev, unsigned int tid)
@@ -111,7 +111,7 @@ static void pcap_ethdev_send_abort(struct traffic_mirror_ethdev * ethdev, unsign
 
 static void pcap_ethdev_destroy(struct traffic_mirror_ethdev * ethdev)
 {
-    pcap_close(ethdev->pcap_device_handle);
+    pcap_close(ethdev->detail_pcap->pcap_device_handle);
     return free(ethdev);
 }
 
@@ -200,9 +200,9 @@ struct traffic_mirror_ethdev * traffic_mirror_ethdev_pcap_create(const char * st
     ethdev->en_offload_tcp_cksum = 0;
     ethdev->en_offload_vlan = 0;
 
-    /* open the device by pcap */
-    ethdev->pcap_device_handle = pcap_open_live(str_ethdev, 0, 0, 0, pcap_errbuf);
-    if (!ethdev->pcap_device_handle)
+    ethdev->detail_pcap = ALLOC(struct traffic_mirror_ethdev_pcap, 1);
+    ethdev->detail_pcap->pcap_device_handle = pcap_open_live(str_ethdev, 0, 0, 0, pcap_errbuf);
+    if (!ethdev->detail_pcap->pcap_device_handle)
     {
         TFE_LOG_ERROR(logger, "failed at pcap_open_live(), device = %s: %s", str_ethdev, pcap_errbuf);
         goto errout;
@@ -258,7 +258,7 @@ struct traffic_mirror_ethdev * traffic_mirror_ethdev_pcap_create(const char * st
 
 errout:
     if (fd > 0) close(fd);
-    if (ethdev->pcap_device_handle) pcap_close(ethdev->pcap_device_handle);
+    if (ethdev->detail_pcap->pcap_device_handle) pcap_close(ethdev->detail_pcap->pcap_device_handle);
     if (ethdev) FREE(&ethdev);
     return nullptr;
 }
diff --git a/plugin/business/traffic-mirror/src/rebuild.cpp b/plugin/business/traffic-mirror/src/rebuild.cpp
index 4c80fd5..5929f6c 100644
--- a/plugin/business/traffic-mirror/src/rebuild.cpp
+++ b/plugin/business/traffic-mirror/src/rebuild.cpp
@@ -80,8 +80,8 @@ static inline uint32_t __rte_raw_cksum(const void *buf, size_t len, uint32_t sum
 
 static inline uint16_t __rte_raw_cksum_reduce(uint32_t sum)
 {
-    sum = ((sum & 0xffff0000U) >> 16) + (sum & 0xffffU);
-    sum = ((sum & 0xffff0000U) >> 16) + (sum & 0xffffU);
+    sum = ((sum & 0xffff0000U) >> 16U) + (sum & 0xffffU);
+    sum = ((sum & 0xffff0000U) >> 16U) + (sum & 0xffffU);
     return (uint16_t) sum;
 }