diff --git a/device/accton/x86_64-accton_as7116_54x-r0/Accton-AS7116-54X/qos.json.j2 b/device/accton/x86_64-accton_as7116_54x-r0/Accton-AS7116-54X/qos.json.j2
index 5c5fc6e4969..ae0c1878100 100644
--- a/device/accton/x86_64-accton_as7116_54x-r0/Accton-AS7116-54X/qos.json.j2
+++ b/device/accton/x86_64-accton_as7116_54x-r0/Accton-AS7116-54X/qos.json.j2
@@ -116,7 +116,10 @@
             "yellow_max_threshold":"628320",
             "yellow_min_threshold":"78400",
             "green_max_threshold": "642656",
-            "green_min_threshold": "80192"
+            "green_min_threshold": "80192",
+            "green_drop_probability":"100",
+            "yellow_drop_probability":"100",
+            "red_drop_probability":"100"
         },
         "AZURE_LOSSLESS" : {
             "wred_green_enable":"true",
@@ -128,7 +131,10 @@
             "yellow_max_threshold":"628320",
             "yellow_min_threshold":"78400",
             "green_max_threshold": "642656",
-            "green_min_threshold": "80192"
+            "green_min_threshold": "80192",
+            "green_drop_probability":"100",
+            "yellow_drop_probability":"100",
+            "red_drop_probability":"100"
         }
     },
     "QUEUE": {
diff --git a/device/accton/x86_64-accton_as7212_54x-r0/AS7212-54x/qos.json.j2 b/device/accton/x86_64-accton_as7212_54x-r0/AS7212-54x/qos.json.j2
index 3e01af3f2c6..4d5b77901a0 100755
--- a/device/accton/x86_64-accton_as7212_54x-r0/AS7212-54x/qos.json.j2
+++ b/device/accton/x86_64-accton_as7212_54x-r0/AS7212-54x/qos.json.j2
@@ -133,7 +133,10 @@
             "yellow_max_threshold":"516096",
             "yellow_min_threshold":"516096",
             "green_max_threshold": "184320",
-            "green_min_threshold": "184320"
+            "green_min_threshold": "184320",
+            "green_drop_probability":"100",
+            "yellow_drop_probability":"100",
+            "red_drop_probability":"100"
         },
         "AZURE_LOSSLESS": {
             "wred_green_enable":"true",
@@ -144,7 +147,10 @@
             "yellow_max_threshold":"516096",
             "yellow_min_threshold":"516096",
             "green_max_threshold": "184320",
-            "green_min_threshold": "184320"
+            "green_min_threshold": "184320",
+            "green_drop_probability":"100",
+            "yellow_drop_probability":"100",
+            "red_drop_probability":"100"
         }
     },
     "QUEUE": {
diff --git a/device/arista/x86_64-arista_7050_qx32/Arista-7050-QX32/qos.json.j2 b/device/arista/x86_64-arista_7050_qx32/Arista-7050-QX32/qos.json.j2
index 926911ab59d..b5e04da671a 100644
--- a/device/arista/x86_64-arista_7050_qx32/Arista-7050-QX32/qos.json.j2
+++ b/device/arista/x86_64-arista_7050_qx32/Arista-7050-QX32/qos.json.j2
@@ -125,7 +125,10 @@
             "yellow_max_threshold":"312000",
             "yellow_min_threshold":"104000",
             "green_max_threshold":"312000",
-            "green_min_threshold":"104000"
+            "green_min_threshold":"104000",
+            "green_drop_probability":"100",
+            "yellow_drop_probability":"100",
+            "red_drop_probability":"100"
         }
     },
     "QUEUE": {
diff --git a/device/arista/x86_64-arista_7050_qx32s/Arista-7050-QX-32S/qos.json.j2 b/device/arista/x86_64-arista_7050_qx32s/Arista-7050-QX-32S/qos.json.j2
index 926911ab59d..b5e04da671a 100644
--- a/device/arista/x86_64-arista_7050_qx32s/Arista-7050-QX-32S/qos.json.j2
+++ b/device/arista/x86_64-arista_7050_qx32s/Arista-7050-QX-32S/qos.json.j2
@@ -125,7 +125,10 @@
             "yellow_max_threshold":"312000",
             "yellow_min_threshold":"104000",
             "green_max_threshold":"312000",
-            "green_min_threshold":"104000"
+            "green_min_threshold":"104000",
+            "green_drop_probability":"100",
+            "yellow_drop_probability":"100",
+            "red_drop_probability":"100"
         }
     },
     "QUEUE": {
diff --git a/device/arista/x86_64-arista_7060_cx32s/Arista-7060CX-32S-C32/qos.json.j2 b/device/arista/x86_64-arista_7060_cx32s/Arista-7060CX-32S-C32/qos.json.j2
index 84f74ecab3b..01a91de3618 100644
--- a/device/arista/x86_64-arista_7060_cx32s/Arista-7060CX-32S-C32/qos.json.j2
+++ b/device/arista/x86_64-arista_7060_cx32s/Arista-7060CX-32S-C32/qos.json.j2
@@ -137,7 +137,10 @@
             "yellow_max_threshold":"312000",
             "yellow_min_threshold":"104000",
             "green_max_threshold": "312000",
-            "green_min_threshold": "104000"
+            "green_min_threshold": "104000",
+            "green_drop_probability":"100",
+            "yellow_drop_probability":"100",
+            "red_drop_probability":"100"
         }
     },
     "QUEUE": {
diff --git a/device/arista/x86_64-arista_7060_cx32s/Arista-7060CX-32S-D48C8/qos.json.j2 b/device/arista/x86_64-arista_7060_cx32s/Arista-7060CX-32S-D48C8/qos.json.j2
index 5142832ecae..3e37a842f02 100644
--- a/device/arista/x86_64-arista_7060_cx32s/Arista-7060CX-32S-D48C8/qos.json.j2
+++ b/device/arista/x86_64-arista_7060_cx32s/Arista-7060CX-32S-D48C8/qos.json.j2
@@ -137,7 +137,10 @@
             "yellow_max_threshold":"312000",
             "yellow_min_threshold":"104000",
             "green_max_threshold": "312000",
-            "green_min_threshold": "104000"
+            "green_min_threshold": "104000",
+            "green_drop_probability":"100",
+            "yellow_drop_probability":"100",
+            "red_drop_probability":"100"
         }
     },
     "QUEUE": {
diff --git a/device/arista/x86_64-arista_7060_cx32s/Arista-7060CX-32S-Q32/qos.json.j2 b/device/arista/x86_64-arista_7060_cx32s/Arista-7060CX-32S-Q32/qos.json.j2
index 84f74ecab3b..01a91de3618 100644
--- a/device/arista/x86_64-arista_7060_cx32s/Arista-7060CX-32S-Q32/qos.json.j2
+++ b/device/arista/x86_64-arista_7060_cx32s/Arista-7060CX-32S-Q32/qos.json.j2
@@ -137,7 +137,10 @@
             "yellow_max_threshold":"312000",
             "yellow_min_threshold":"104000",
             "green_max_threshold": "312000",
-            "green_min_threshold": "104000"
+            "green_min_threshold": "104000",
+            "green_drop_probability":"100",
+            "yellow_drop_probability":"100",
+            "red_drop_probability":"100"
         }
     },
     "QUEUE": {
diff --git a/device/arista/x86_64-arista_7260cx3_64/Arista-7260CX3-D108C8/qos.json.j2 b/device/arista/x86_64-arista_7260cx3_64/Arista-7260CX3-D108C8/qos.json.j2
index 06efa359177..45ca4d949dc 100644
--- a/device/arista/x86_64-arista_7260cx3_64/Arista-7260CX3-D108C8/qos.json.j2
+++ b/device/arista/x86_64-arista_7260cx3_64/Arista-7260CX3-D108C8/qos.json.j2
@@ -137,7 +137,10 @@
             "yellow_max_threshold":"312000",
             "yellow_min_threshold":"104000",
             "green_max_threshold": "312000",
-            "green_min_threshold": "104000"
+            "green_min_threshold": "104000",
+            "green_drop_probability":"100",
+            "yellow_drop_probability":"100",
+            "red_drop_probability":"100"
         }
     },
     "QUEUE": {
diff --git a/device/barefoot/x86_64-accton_wedge100bf_32x-r0/montara/qos.json.j2 b/device/barefoot/x86_64-accton_wedge100bf_32x-r0/montara/qos.json.j2
index 7b8732e2e12..82df79ed097 100644
--- a/device/barefoot/x86_64-accton_wedge100bf_32x-r0/montara/qos.json.j2
+++ b/device/barefoot/x86_64-accton_wedge100bf_32x-r0/montara/qos.json.j2
@@ -129,7 +129,10 @@
             "yellow_max_threshold":"516096",
             "yellow_min_threshold":"516096",
             "green_max_threshold": "184320",
-            "green_min_threshold": "184320"
+            "green_min_threshold": "184320",
+            "green_drop_probability":"100",
+            "yellow_drop_probability":"100",
+            "red_drop_probability":"100"
         },
         "AZURE_LOSSLESS": {
             "wred_green_enable":"true",
@@ -140,7 +143,10 @@
             "yellow_max_threshold":"516096",
             "yellow_min_threshold":"516096",
             "green_max_threshold": "184320",
-            "green_min_threshold": "184320"
+            "green_min_threshold": "184320",
+            "green_drop_probability":"100",
+            "yellow_drop_probability":"100",
+            "red_drop_probability":"100"
         }
     },
     "QUEUE": {
diff --git a/device/barefoot/x86_64-accton_wedge100bf_65x-r0/mavericks/qos.json.j2 b/device/barefoot/x86_64-accton_wedge100bf_65x-r0/mavericks/qos.json.j2
index 7b8732e2e12..82df79ed097 100644
--- a/device/barefoot/x86_64-accton_wedge100bf_65x-r0/mavericks/qos.json.j2
+++ b/device/barefoot/x86_64-accton_wedge100bf_65x-r0/mavericks/qos.json.j2
@@ -129,7 +129,10 @@
             "yellow_max_threshold":"516096",
             "yellow_min_threshold":"516096",
             "green_max_threshold": "184320",
-            "green_min_threshold": "184320"
+            "green_min_threshold": "184320",
+            "green_drop_probability":"100",
+            "yellow_drop_probability":"100",
+            "red_drop_probability":"100"
         },
         "AZURE_LOSSLESS": {
             "wred_green_enable":"true",
@@ -140,7 +143,10 @@
             "yellow_max_threshold":"516096",
             "yellow_min_threshold":"516096",
             "green_max_threshold": "184320",
-            "green_min_threshold": "184320"
+            "green_min_threshold": "184320",
+            "green_drop_probability":"100",
+            "yellow_drop_probability":"100",
+            "red_drop_probability":"100"
         }
     },
     "QUEUE": {
diff --git a/device/dell/x86_64-dell_s6000_s1220-r0/Force10-S6000/qos.json.j2 b/device/dell/x86_64-dell_s6000_s1220-r0/Force10-S6000/qos.json.j2
index 926911ab59d..b5e04da671a 100644
--- a/device/dell/x86_64-dell_s6000_s1220-r0/Force10-S6000/qos.json.j2
+++ b/device/dell/x86_64-dell_s6000_s1220-r0/Force10-S6000/qos.json.j2
@@ -125,7 +125,10 @@
             "yellow_max_threshold":"312000",
             "yellow_min_threshold":"104000",
             "green_max_threshold":"312000",
-            "green_min_threshold":"104000"
+            "green_min_threshold":"104000",
+            "green_drop_probability":"100",
+            "yellow_drop_probability":"100",
+            "red_drop_probability":"100"
         }
     },
     "QUEUE": {
diff --git a/device/dell/x86_64-dell_s6100_c2538-r0/Force10-S6100/qos.json.j2 b/device/dell/x86_64-dell_s6100_c2538-r0/Force10-S6100/qos.json.j2
index 054a8f832cd..3fa7bdb2e1c 100644
--- a/device/dell/x86_64-dell_s6100_c2538-r0/Force10-S6100/qos.json.j2
+++ b/device/dell/x86_64-dell_s6100_c2538-r0/Force10-S6100/qos.json.j2
@@ -164,7 +164,10 @@
             "yellow_max_threshold":"312000",
             "yellow_min_threshold":"104000",
             "green_max_threshold": "312000",
-            "green_min_threshold": "104000"
+            "green_min_threshold": "104000",
+            "green_drop_probability":"100",
+            "yellow_drop_probability":"100",
+            "red_drop_probability":"100"
         }
     },
     "QUEUE": {
diff --git a/device/dell/x86_64-dell_z9100_c2538-r0/Force10-Z9100-T0/qos.json.j2 b/device/dell/x86_64-dell_z9100_c2538-r0/Force10-Z9100-T0/qos.json.j2
index 57bb4c53217..b56833cc122 100644
--- a/device/dell/x86_64-dell_z9100_c2538-r0/Force10-Z9100-T0/qos.json.j2
+++ b/device/dell/x86_64-dell_z9100_c2538-r0/Force10-Z9100-T0/qos.json.j2
@@ -137,7 +137,10 @@
             "yellow_max_threshold":"312000",
             "yellow_min_threshold":"104000",
             "green_max_threshold": "312000",
-            "green_min_threshold": "104000"
+            "green_min_threshold": "104000",
+            "green_drop_probability":"100",
+            "yellow_drop_probability":"100",
+            "red_drop_probability":"100"
         }
     },
     "QUEUE": {
diff --git a/device/dell/x86_64-dell_z9100_c2538-r0/Force10-Z9100/qos.json.j2 b/device/dell/x86_64-dell_z9100_c2538-r0/Force10-Z9100/qos.json.j2
index 84f74ecab3b..01a91de3618 100644
--- a/device/dell/x86_64-dell_z9100_c2538-r0/Force10-Z9100/qos.json.j2
+++ b/device/dell/x86_64-dell_z9100_c2538-r0/Force10-Z9100/qos.json.j2
@@ -137,7 +137,10 @@
             "yellow_max_threshold":"312000",
             "yellow_min_threshold":"104000",
             "green_max_threshold": "312000",
-            "green_min_threshold": "104000"
+            "green_min_threshold": "104000",
+            "green_drop_probability":"100",
+            "yellow_drop_probability":"100",
+            "red_drop_probability":"100"
         }
     },
     "QUEUE": {
diff --git a/device/ingrasys/x86_64-ingrasys_s9130_32x-r0/INGRASYS-S9130-32X/qos.json.j2 b/device/ingrasys/x86_64-ingrasys_s9130_32x-r0/INGRASYS-S9130-32X/qos.json.j2
index 5c5fc6e4969..ae0c1878100 100644
--- a/device/ingrasys/x86_64-ingrasys_s9130_32x-r0/INGRASYS-S9130-32X/qos.json.j2
+++ b/device/ingrasys/x86_64-ingrasys_s9130_32x-r0/INGRASYS-S9130-32X/qos.json.j2
@@ -116,7 +116,10 @@
             "yellow_max_threshold":"628320",
             "yellow_min_threshold":"78400",
             "green_max_threshold": "642656",
-            "green_min_threshold": "80192"
+            "green_min_threshold": "80192",
+            "green_drop_probability":"100",
+            "yellow_drop_probability":"100",
+            "red_drop_probability":"100"
         },
         "AZURE_LOSSLESS" : {
             "wred_green_enable":"true",
@@ -128,7 +131,10 @@
             "yellow_max_threshold":"628320",
             "yellow_min_threshold":"78400",
             "green_max_threshold": "642656",
-            "green_min_threshold": "80192"
+            "green_min_threshold": "80192",
+            "green_drop_probability":"100",
+            "yellow_drop_probability":"100",
+            "red_drop_probability":"100"
         }
     },
     "QUEUE": {
diff --git a/device/ingrasys/x86_64-ingrasys_s9230_64x-r0/INGRASYS-S9230-64X/qos.json.j2 b/device/ingrasys/x86_64-ingrasys_s9230_64x-r0/INGRASYS-S9230-64X/qos.json.j2
index 5c5fc6e4969..ae0c1878100 100644
--- a/device/ingrasys/x86_64-ingrasys_s9230_64x-r0/INGRASYS-S9230-64X/qos.json.j2
+++ b/device/ingrasys/x86_64-ingrasys_s9230_64x-r0/INGRASYS-S9230-64X/qos.json.j2
@@ -116,7 +116,10 @@
             "yellow_max_threshold":"628320",
             "yellow_min_threshold":"78400",
             "green_max_threshold": "642656",
-            "green_min_threshold": "80192"
+            "green_min_threshold": "80192",
+            "green_drop_probability":"100",
+            "yellow_drop_probability":"100",
+            "red_drop_probability":"100"
         },
         "AZURE_LOSSLESS" : {
             "wred_green_enable":"true",
@@ -128,7 +131,10 @@
             "yellow_max_threshold":"628320",
             "yellow_min_threshold":"78400",
             "green_max_threshold": "642656",
-            "green_min_threshold": "80192"
+            "green_min_threshold": "80192",
+            "green_drop_probability":"100",
+            "yellow_drop_probability":"100",
+            "red_drop_probability":"100"
         }
     },
     "QUEUE": {
diff --git a/device/mellanox/x86_64-mlnx_lssn2700-r0/LS-SN2700/qos.json.j2 b/device/mellanox/x86_64-mlnx_lssn2700-r0/LS-SN2700/qos.json.j2
index 3e01af3f2c6..4d5b77901a0 100644
--- a/device/mellanox/x86_64-mlnx_lssn2700-r0/LS-SN2700/qos.json.j2
+++ b/device/mellanox/x86_64-mlnx_lssn2700-r0/LS-SN2700/qos.json.j2
@@ -133,7 +133,10 @@
             "yellow_max_threshold":"516096",
             "yellow_min_threshold":"516096",
             "green_max_threshold": "184320",
-            "green_min_threshold": "184320"
+            "green_min_threshold": "184320",
+            "green_drop_probability":"100",
+            "yellow_drop_probability":"100",
+            "red_drop_probability":"100"
         },
         "AZURE_LOSSLESS": {
             "wred_green_enable":"true",
@@ -144,7 +147,10 @@
             "yellow_max_threshold":"516096",
             "yellow_min_threshold":"516096",
             "green_max_threshold": "184320",
-            "green_min_threshold": "184320"
+            "green_min_threshold": "184320",
+            "green_drop_probability":"100",
+            "yellow_drop_probability":"100",
+            "red_drop_probability":"100"
         }
     },
     "QUEUE": {
diff --git a/device/mellanox/x86_64-mlnx_msn2100-r0/ACS-MSN2100/qos.json.j2 b/device/mellanox/x86_64-mlnx_msn2100-r0/ACS-MSN2100/qos.json.j2
index 74045469dbf..28e73de1bf5 100644
--- a/device/mellanox/x86_64-mlnx_msn2100-r0/ACS-MSN2100/qos.json.j2
+++ b/device/mellanox/x86_64-mlnx_msn2100-r0/ACS-MSN2100/qos.json.j2
@@ -133,7 +133,10 @@
             "yellow_max_threshold":"516096",
             "yellow_min_threshold":"516096",
             "green_max_threshold": "184320",
-            "green_min_threshold": "184320"
+            "green_min_threshold": "184320",
+            "green_drop_probability":"100",
+            "yellow_drop_probability":"100",
+            "red_drop_probability":"100"
         },
         "AZURE_LOSSLESS": {
             "wred_green_enable":"true",
@@ -144,7 +147,10 @@
             "yellow_max_threshold":"516096",
             "yellow_min_threshold":"516096",
             "green_max_threshold": "184320",
-            "green_min_threshold": "184320"
+            "green_min_threshold": "184320",
+            "green_drop_probability":"100",
+            "yellow_drop_probability":"100",
+            "red_drop_probability":"100"
         }
     },
     "QUEUE": {
diff --git a/device/mellanox/x86_64-mlnx_msn2410-r0/ACS-MSN2410/qos.json.j2 b/device/mellanox/x86_64-mlnx_msn2410-r0/ACS-MSN2410/qos.json.j2
index 95652cf96f4..94aa552ad81 100644
--- a/device/mellanox/x86_64-mlnx_msn2410-r0/ACS-MSN2410/qos.json.j2
+++ b/device/mellanox/x86_64-mlnx_msn2410-r0/ACS-MSN2410/qos.json.j2
@@ -133,7 +133,10 @@
             "yellow_max_threshold":"516096",
             "yellow_min_threshold":"516096",
             "green_max_threshold": "184320",
-            "green_min_threshold": "184320"
+            "green_min_threshold": "184320",
+            "green_drop_probability":"100",
+            "yellow_drop_probability":"100",
+            "red_drop_probability":"100"
         },
         "AZURE_LOSSLESS": {
             "wred_green_enable":"true",
@@ -144,7 +147,10 @@
             "yellow_max_threshold":"516096",
             "yellow_min_threshold":"516096",
             "green_max_threshold": "184320",
-            "green_min_threshold": "184320"
+            "green_min_threshold": "184320",
+            "green_drop_probability":"100",
+            "yellow_drop_probability":"100",
+            "red_drop_probability":"100"
         }
     },
     "QUEUE": {
diff --git a/device/mellanox/x86_64-mlnx_msn2700-r0/ACS-MSN2700/qos.json.j2 b/device/mellanox/x86_64-mlnx_msn2700-r0/ACS-MSN2700/qos.json.j2
index 3e01af3f2c6..4d5b77901a0 100644
--- a/device/mellanox/x86_64-mlnx_msn2700-r0/ACS-MSN2700/qos.json.j2
+++ b/device/mellanox/x86_64-mlnx_msn2700-r0/ACS-MSN2700/qos.json.j2
@@ -133,7 +133,10 @@
             "yellow_max_threshold":"516096",
             "yellow_min_threshold":"516096",
             "green_max_threshold": "184320",
-            "green_min_threshold": "184320"
+            "green_min_threshold": "184320",
+            "green_drop_probability":"100",
+            "yellow_drop_probability":"100",
+            "red_drop_probability":"100"
         },
         "AZURE_LOSSLESS": {
             "wred_green_enable":"true",
@@ -144,7 +147,10 @@
             "yellow_max_threshold":"516096",
             "yellow_min_threshold":"516096",
             "green_max_threshold": "184320",
-            "green_min_threshold": "184320"
+            "green_min_threshold": "184320",
+            "green_drop_probability":"100",
+            "yellow_drop_probability":"100",
+            "red_drop_probability":"100"
         }
     },
     "QUEUE": {
diff --git a/device/mellanox/x86_64-mlnx_msn2700-r0/Mellanox-SN2700-D48C8/qos.json.j2 b/device/mellanox/x86_64-mlnx_msn2700-r0/Mellanox-SN2700-D48C8/qos.json.j2
index d35f614de63..e1f2f7b6181 100644
--- a/device/mellanox/x86_64-mlnx_msn2700-r0/Mellanox-SN2700-D48C8/qos.json.j2
+++ b/device/mellanox/x86_64-mlnx_msn2700-r0/Mellanox-SN2700-D48C8/qos.json.j2
@@ -133,7 +133,10 @@
             "yellow_max_threshold":"516096",
             "yellow_min_threshold":"516096",
             "green_max_threshold": "184320",
-            "green_min_threshold": "184320"
+            "green_min_threshold": "184320",
+            "green_drop_probability":"100",
+            "yellow_drop_probability":"100",
+            "red_drop_probability":"100"
         },
         "AZURE_LOSSLESS": {
             "wred_green_enable":"true",
@@ -144,7 +147,10 @@
             "yellow_max_threshold":"516096",
             "yellow_min_threshold":"516096",
             "green_max_threshold": "184320",
-            "green_min_threshold": "184320"
+            "green_min_threshold": "184320",
+            "green_drop_probability":"100",
+            "yellow_drop_probability":"100",
+            "red_drop_probability":"100"
         }
     },
     "QUEUE": {
diff --git a/src/sonic-config-engine/tests/sample_output/qos-dell6100.json b/src/sonic-config-engine/tests/sample_output/qos-dell6100.json
index 0db51148bdc..cc5b5e61b72 100644
--- a/src/sonic-config-engine/tests/sample_output/qos-dell6100.json
+++ b/src/sonic-config-engine/tests/sample_output/qos-dell6100.json
@@ -138,7 +138,10 @@
             "yellow_max_threshold":"312000",
             "yellow_min_threshold":"104000",
             "green_max_threshold": "312000",
-            "green_min_threshold": "104000"
+            "green_min_threshold": "104000",
+            "green_drop_probability":"100",
+            "yellow_drop_probability":"100",
+            "red_drop_probability":"100"
         }
     },
     "QUEUE": {