diff --git a/orchagent/fdborch.cpp b/orchagent/fdborch.cpp
index cbf9d95b9d..52eb95bc9e 100644
--- a/orchagent/fdborch.cpp
+++ b/orchagent/fdborch.cpp
@@ -715,7 +715,12 @@ void FdbOrch::doTask(NotificationConsumer& consumer)
              * so far only support flush all the FDB entries
              * flush per port and flush per vlan will be added later.
              */
-            status = sai_fdb_api->flush_fdb_entries(gSwitchId, 0, NULL);
+            vector<sai_attribute_t>    attrs;
+            sai_attribute_t            attr;
+            attr.id = SAI_FDB_FLUSH_ATTR_ENTRY_TYPE;
+            attr.value.s32 = SAI_FDB_FLUSH_ENTRY_TYPE_DYNAMIC;
+            attrs.push_back(attr);
+            status = sai_fdb_api->flush_fdb_entries(gSwitchId, (uint32_t)attrs.size(), attrs.data());
             if (status != SAI_STATUS_SUCCESS)
             {
                 SWSS_LOG_ERROR("Flush fdb failed, return code %x", status);
@@ -811,6 +816,11 @@ void FdbOrch::flushFDBEntries(sai_object_id_t bridge_port_oid,
         attrs.push_back(attr);
     }
 
+    /* do not flush static mac */
+    attr.id = SAI_FDB_FLUSH_ATTR_ENTRY_TYPE;
+    attr.value.s32 = SAI_FDB_FLUSH_ENTRY_TYPE_DYNAMIC;
+    attrs.push_back(attr);
+    
     SWSS_LOG_INFO("Flushing FDB bridge_port_oid: 0x%" PRIx64 ", and bvid_oid:0x%" PRIx64 ".", bridge_port_oid, vlan_oid);
 
     rv = sai_fdb_api->flush_fdb_entries(gSwitchId, (uint32_t)attrs.size(), attrs.data());