diff --git a/device/arista/x86_64-arista_7800r3_48cq2_lc/Arista-7800R3-48CQ2-C48/buffers_defaults_t2.j2 b/device/arista/x86_64-arista_7800r3_48cq2_lc/Arista-7800R3-48CQ2-C48/buffers_defaults_t2.j2
index efee1fee3e2c..b036683d1dba 100644
--- a/device/arista/x86_64-arista_7800r3_48cq2_lc/Arista-7800R3-48CQ2-C48/buffers_defaults_t2.j2
+++ b/device/arista/x86_64-arista_7800r3_48cq2_lc/Arista-7800R3-48CQ2-C48/buffers_defaults_t2.j2
@@ -40,7 +40,7 @@
         "egress_lossy_profile": {
             "pool":"ingress_lossless_pool",
             "size":"0",
-            "dynamic_th":"-1"
+            "dynamic_th":"-4"
         }
     },
 {%- endmacro %}
diff --git a/device/arista/x86_64-arista_7800r3_48cqm2_lc/Arista-7800R3-48CQM2-C48/buffers_defaults_t2.j2 b/device/arista/x86_64-arista_7800r3_48cqm2_lc/Arista-7800R3-48CQM2-C48/buffers_defaults_t2.j2
index 5825848d4a4e..38ee97c304e8 100644
--- a/device/arista/x86_64-arista_7800r3_48cqm2_lc/Arista-7800R3-48CQM2-C48/buffers_defaults_t2.j2
+++ b/device/arista/x86_64-arista_7800r3_48cqm2_lc/Arista-7800R3-48CQM2-C48/buffers_defaults_t2.j2
@@ -40,7 +40,7 @@
         "egress_lossy_profile": {
             "pool":"ingress_lossless_pool",
             "size":"0",
-            "dynamic_th":"-1"
+            "dynamic_th":"-4"
         }
     },
 {%- endmacro %}
diff --git a/device/arista/x86_64-arista_7800r3a_36d2_lc/Arista-7800R3A-36D2-C36/0/buffers_defaults_t2.j2 b/device/arista/x86_64-arista_7800r3a_36d2_lc/Arista-7800R3A-36D2-C36/0/buffers_defaults_t2.j2
index 35a7f535744c..6990e4de7a9b 100644
--- a/device/arista/x86_64-arista_7800r3a_36d2_lc/Arista-7800R3A-36D2-C36/0/buffers_defaults_t2.j2
+++ b/device/arista/x86_64-arista_7800r3a_36d2_lc/Arista-7800R3A-36D2-C36/0/buffers_defaults_t2.j2
@@ -40,7 +40,7 @@
         "egress_lossy_profile": {
             "pool":"ingress_lossless_pool",
             "size":"0",
-            "dynamic_th":"-1"
+            "dynamic_th":"-4"
         }
     },
 {%- endmacro %}
diff --git a/device/arista/x86_64-arista_7800r3a_36d2_lc/Arista-7800R3A-36D2-C36/1/buffers_defaults_t2.j2 b/device/arista/x86_64-arista_7800r3a_36d2_lc/Arista-7800R3A-36D2-C36/1/buffers_defaults_t2.j2
index 18bf47b013eb..857d7f26511e 100644
--- a/device/arista/x86_64-arista_7800r3a_36d2_lc/Arista-7800R3A-36D2-C36/1/buffers_defaults_t2.j2
+++ b/device/arista/x86_64-arista_7800r3a_36d2_lc/Arista-7800R3A-36D2-C36/1/buffers_defaults_t2.j2
@@ -40,7 +40,7 @@
         "egress_lossy_profile": {
             "pool":"ingress_lossless_pool",
             "size":"0",
-            "dynamic_th":"-1"
+            "dynamic_th":"-4"
         }
     },
 {%- endmacro %}
diff --git a/device/arista/x86_64-arista_7800r3a_36d2_lc/Arista-7800R3A-36D2-C72/0/buffers_defaults_t2.j2 b/device/arista/x86_64-arista_7800r3a_36d2_lc/Arista-7800R3A-36D2-C72/0/buffers_defaults_t2.j2
index b49aea94064b..1aea50e1fd28 100644
--- a/device/arista/x86_64-arista_7800r3a_36d2_lc/Arista-7800R3A-36D2-C72/0/buffers_defaults_t2.j2
+++ b/device/arista/x86_64-arista_7800r3a_36d2_lc/Arista-7800R3A-36D2-C72/0/buffers_defaults_t2.j2
@@ -40,7 +40,7 @@
         "egress_lossy_profile": {
             "pool":"ingress_lossless_pool",
             "size":"0",
-            "dynamic_th":"-1"
+            "dynamic_th":"-4"
         }
     },
 {%- endmacro %}
diff --git a/device/arista/x86_64-arista_7800r3a_36d2_lc/Arista-7800R3A-36D2-C72/1/buffers_defaults_t2.j2 b/device/arista/x86_64-arista_7800r3a_36d2_lc/Arista-7800R3A-36D2-C72/1/buffers_defaults_t2.j2
index 9fa59b61c065..19caf55f0009 100644
--- a/device/arista/x86_64-arista_7800r3a_36d2_lc/Arista-7800R3A-36D2-C72/1/buffers_defaults_t2.j2
+++ b/device/arista/x86_64-arista_7800r3a_36d2_lc/Arista-7800R3A-36D2-C72/1/buffers_defaults_t2.j2
@@ -40,7 +40,7 @@
         "egress_lossy_profile": {
             "pool":"ingress_lossless_pool",
             "size":"0",
-            "dynamic_th":"-1"
+            "dynamic_th":"-4"
         }
     },
 {%- endmacro %}
diff --git a/device/arista/x86_64-arista_7800r3a_36d2_lc/Arista-7800R3A-36D2-D36/0/buffers_defaults_t2.j2 b/device/arista/x86_64-arista_7800r3a_36d2_lc/Arista-7800R3A-36D2-D36/0/buffers_defaults_t2.j2
index 615280ab2ecb..2af84b9a9c55 100644
--- a/device/arista/x86_64-arista_7800r3a_36d2_lc/Arista-7800R3A-36D2-D36/0/buffers_defaults_t2.j2
+++ b/device/arista/x86_64-arista_7800r3a_36d2_lc/Arista-7800R3A-36D2-D36/0/buffers_defaults_t2.j2
@@ -40,7 +40,7 @@
         "egress_lossy_profile": {
             "pool":"ingress_lossless_pool",
             "size":"0",
-            "dynamic_th":"-1"
+            "dynamic_th":"-4"
         }
     },
 {%- endmacro %}
diff --git a/device/arista/x86_64-arista_7800r3a_36d2_lc/Arista-7800R3A-36D2-D36/1/buffers_defaults_t2.j2 b/device/arista/x86_64-arista_7800r3a_36d2_lc/Arista-7800R3A-36D2-D36/1/buffers_defaults_t2.j2
index 407058909c69..b4c4ff9ccf0b 100644
--- a/device/arista/x86_64-arista_7800r3a_36d2_lc/Arista-7800R3A-36D2-D36/1/buffers_defaults_t2.j2
+++ b/device/arista/x86_64-arista_7800r3a_36d2_lc/Arista-7800R3A-36D2-D36/1/buffers_defaults_t2.j2
@@ -40,7 +40,7 @@
         "egress_lossy_profile": {
             "pool":"ingress_lossless_pool",
             "size":"0",
-            "dynamic_th":"-1"
+            "dynamic_th":"-4"
         }
     },
 {%- endmacro %}
diff --git a/device/nokia/x86_64-nokia_ixr7250e_36x400g-r0/Nokia-IXR7250E-36x100G/0/buffers_defaults_t2.j2 b/device/nokia/x86_64-nokia_ixr7250e_36x400g-r0/Nokia-IXR7250E-36x100G/0/buffers_defaults_t2.j2
index 030060d45cf1..f911a0e58054 100644
--- a/device/nokia/x86_64-nokia_ixr7250e_36x400g-r0/Nokia-IXR7250E-36x100G/0/buffers_defaults_t2.j2
+++ b/device/nokia/x86_64-nokia_ixr7250e_36x400g-r0/Nokia-IXR7250E-36x100G/0/buffers_defaults_t2.j2
@@ -40,7 +40,7 @@
         "egress_lossy_profile": {
             "pool":"ingress_lossless_pool",
             "size":"0",
-            "dynamic_th":"-1"
+            "dynamic_th":"-4"
         }
     },
 {%- endmacro %}
diff --git a/device/nokia/x86_64-nokia_ixr7250e_36x400g-r0/Nokia-IXR7250E-36x100G/1/buffers_defaults_t2.j2 b/device/nokia/x86_64-nokia_ixr7250e_36x400g-r0/Nokia-IXR7250E-36x100G/1/buffers_defaults_t2.j2
index 030060d45cf1..f911a0e58054 100644
--- a/device/nokia/x86_64-nokia_ixr7250e_36x400g-r0/Nokia-IXR7250E-36x100G/1/buffers_defaults_t2.j2
+++ b/device/nokia/x86_64-nokia_ixr7250e_36x400g-r0/Nokia-IXR7250E-36x100G/1/buffers_defaults_t2.j2
@@ -40,7 +40,7 @@
         "egress_lossy_profile": {
             "pool":"ingress_lossless_pool",
             "size":"0",
-            "dynamic_th":"-1"
+            "dynamic_th":"-4"
         }
     },
 {%- endmacro %}
diff --git a/device/nokia/x86_64-nokia_ixr7250e_36x400g-r0/Nokia-IXR7250E-36x400G/0/buffers_defaults_t2.j2 b/device/nokia/x86_64-nokia_ixr7250e_36x400g-r0/Nokia-IXR7250E-36x400G/0/buffers_defaults_t2.j2
index 3fb88267afd3..cf0e02f6d7c8 100644
--- a/device/nokia/x86_64-nokia_ixr7250e_36x400g-r0/Nokia-IXR7250E-36x400G/0/buffers_defaults_t2.j2
+++ b/device/nokia/x86_64-nokia_ixr7250e_36x400g-r0/Nokia-IXR7250E-36x400G/0/buffers_defaults_t2.j2
@@ -40,7 +40,7 @@
         "egress_lossy_profile": {
             "pool":"ingress_lossless_pool",
             "size":"0",
-            "dynamic_th":"-1"
+            "dynamic_th":"-4"
         }
     },
 {%- endmacro %}
diff --git a/device/nokia/x86_64-nokia_ixr7250e_36x400g-r0/Nokia-IXR7250E-36x400G/1/buffers_defaults_t2.j2 b/device/nokia/x86_64-nokia_ixr7250e_36x400g-r0/Nokia-IXR7250E-36x400G/1/buffers_defaults_t2.j2
index 3fb88267afd3..cf0e02f6d7c8 100644
--- a/device/nokia/x86_64-nokia_ixr7250e_36x400g-r0/Nokia-IXR7250E-36x400G/1/buffers_defaults_t2.j2
+++ b/device/nokia/x86_64-nokia_ixr7250e_36x400g-r0/Nokia-IXR7250E-36x400G/1/buffers_defaults_t2.j2
@@ -40,7 +40,7 @@
         "egress_lossy_profile": {
             "pool":"ingress_lossless_pool",
             "size":"0",
-            "dynamic_th":"-1"
+            "dynamic_th":"-4"
         }
     },
 {%- endmacro %}
diff --git a/src/sonic-config-engine/tests/sample_output/py2/buffer-arista7800r3-48cq2-lc.json b/src/sonic-config-engine/tests/sample_output/py2/buffer-arista7800r3-48cq2-lc.json
index 35b9c69d424e..661fd8cc28c5 100644
--- a/src/sonic-config-engine/tests/sample_output/py2/buffer-arista7800r3-48cq2-lc.json
+++ b/src/sonic-config-engine/tests/sample_output/py2/buffer-arista7800r3-48cq2-lc.json
@@ -75,7 +75,7 @@
         "egress_lossy_profile": {
             "pool":"ingress_lossless_pool",
             "size":"0",
-            "dynamic_th":"-1"
+            "dynamic_th":"-4"
         }
     },
     "BUFFER_PG": {
diff --git a/src/sonic-config-engine/tests/sample_output/py2/buffer-arista7800r3-48cqm2-lc.json b/src/sonic-config-engine/tests/sample_output/py2/buffer-arista7800r3-48cqm2-lc.json
index ebca473bc48a..8a1163f95f72 100644
--- a/src/sonic-config-engine/tests/sample_output/py2/buffer-arista7800r3-48cqm2-lc.json
+++ b/src/sonic-config-engine/tests/sample_output/py2/buffer-arista7800r3-48cqm2-lc.json
@@ -75,7 +75,7 @@
         "egress_lossy_profile": {
             "pool":"ingress_lossless_pool",
             "size":"0",
-            "dynamic_th":"-1"
+            "dynamic_th":"-4"
         }
     },
     "BUFFER_PG": {
diff --git a/src/sonic-config-engine/tests/sample_output/py2/buffer-arista7800r3a-36dm2-c36-lc.json b/src/sonic-config-engine/tests/sample_output/py2/buffer-arista7800r3a-36dm2-c36-lc.json
index 6ab0f7c6867d..b82f36fdda28 100644
--- a/src/sonic-config-engine/tests/sample_output/py2/buffer-arista7800r3a-36dm2-c36-lc.json
+++ b/src/sonic-config-engine/tests/sample_output/py2/buffer-arista7800r3a-36dm2-c36-lc.json
@@ -45,7 +45,7 @@
         "egress_lossy_profile": {
             "pool":"ingress_lossless_pool",
             "size":"0",
-            "dynamic_th":"-1"
+            "dynamic_th":"-4"
         }
     },
 
diff --git a/src/sonic-config-engine/tests/sample_output/py2/buffer-arista7800r3a-36dm2-d36-lc.json b/src/sonic-config-engine/tests/sample_output/py2/buffer-arista7800r3a-36dm2-d36-lc.json
index ba77ebdcfc64..7d7af2c6836c 100644
--- a/src/sonic-config-engine/tests/sample_output/py2/buffer-arista7800r3a-36dm2-d36-lc.json
+++ b/src/sonic-config-engine/tests/sample_output/py2/buffer-arista7800r3a-36dm2-d36-lc.json
@@ -45,7 +45,7 @@
         "egress_lossy_profile": {
             "pool":"ingress_lossless_pool",
             "size":"0",
-            "dynamic_th":"-1"
+            "dynamic_th":"-4"
         }
     },
 
diff --git a/src/sonic-config-engine/tests/sample_output/py2/buffer-nokia-ixr7250e-36x100g.json b/src/sonic-config-engine/tests/sample_output/py2/buffer-nokia-ixr7250e-36x100g.json
index 4ed219574116..7e39255e71d4 100644
--- a/src/sonic-config-engine/tests/sample_output/py2/buffer-nokia-ixr7250e-36x100g.json
+++ b/src/sonic-config-engine/tests/sample_output/py2/buffer-nokia-ixr7250e-36x100g.json
@@ -45,7 +45,7 @@
         "egress_lossy_profile": {
             "pool":"ingress_lossless_pool",
             "size":"0",
-            "dynamic_th":"-1"
+            "dynamic_th":"-4"
         }
     },
 
diff --git a/src/sonic-config-engine/tests/sample_output/py2/buffer-nokia-ixr7250e-36x400g.json b/src/sonic-config-engine/tests/sample_output/py2/buffer-nokia-ixr7250e-36x400g.json
index 7b81862068e8..010a8677eed9 100644
--- a/src/sonic-config-engine/tests/sample_output/py2/buffer-nokia-ixr7250e-36x400g.json
+++ b/src/sonic-config-engine/tests/sample_output/py2/buffer-nokia-ixr7250e-36x400g.json
@@ -45,7 +45,7 @@
         "egress_lossy_profile": {
             "pool":"ingress_lossless_pool",
             "size":"0",
-            "dynamic_th":"-1"
+            "dynamic_th":"-4"
         }
     },
 
diff --git a/src/sonic-config-engine/tests/sample_output/py3/buffer-arista7800r3-48cq2-lc.json b/src/sonic-config-engine/tests/sample_output/py3/buffer-arista7800r3-48cq2-lc.json
index 35b9c69d424e..661fd8cc28c5 100644
--- a/src/sonic-config-engine/tests/sample_output/py3/buffer-arista7800r3-48cq2-lc.json
+++ b/src/sonic-config-engine/tests/sample_output/py3/buffer-arista7800r3-48cq2-lc.json
@@ -75,7 +75,7 @@
         "egress_lossy_profile": {
             "pool":"ingress_lossless_pool",
             "size":"0",
-            "dynamic_th":"-1"
+            "dynamic_th":"-4"
         }
     },
     "BUFFER_PG": {
diff --git a/src/sonic-config-engine/tests/sample_output/py3/buffer-arista7800r3-48cqm2-lc.json b/src/sonic-config-engine/tests/sample_output/py3/buffer-arista7800r3-48cqm2-lc.json
index ebca473bc48a..8a1163f95f72 100644
--- a/src/sonic-config-engine/tests/sample_output/py3/buffer-arista7800r3-48cqm2-lc.json
+++ b/src/sonic-config-engine/tests/sample_output/py3/buffer-arista7800r3-48cqm2-lc.json
@@ -75,7 +75,7 @@
         "egress_lossy_profile": {
             "pool":"ingress_lossless_pool",
             "size":"0",
-            "dynamic_th":"-1"
+            "dynamic_th":"-4"
         }
     },
     "BUFFER_PG": {
diff --git a/src/sonic-config-engine/tests/sample_output/py3/buffer-arista7800r3a-36dm2-c36-lc.json b/src/sonic-config-engine/tests/sample_output/py3/buffer-arista7800r3a-36dm2-c36-lc.json
index 6ab0f7c6867d..b82f36fdda28 100644
--- a/src/sonic-config-engine/tests/sample_output/py3/buffer-arista7800r3a-36dm2-c36-lc.json
+++ b/src/sonic-config-engine/tests/sample_output/py3/buffer-arista7800r3a-36dm2-c36-lc.json
@@ -45,7 +45,7 @@
         "egress_lossy_profile": {
             "pool":"ingress_lossless_pool",
             "size":"0",
-            "dynamic_th":"-1"
+            "dynamic_th":"-4"
         }
     },
 
diff --git a/src/sonic-config-engine/tests/sample_output/py3/buffer-arista7800r3a-36dm2-d36-lc.json b/src/sonic-config-engine/tests/sample_output/py3/buffer-arista7800r3a-36dm2-d36-lc.json
index ba77ebdcfc64..7d7af2c6836c 100644
--- a/src/sonic-config-engine/tests/sample_output/py3/buffer-arista7800r3a-36dm2-d36-lc.json
+++ b/src/sonic-config-engine/tests/sample_output/py3/buffer-arista7800r3a-36dm2-d36-lc.json
@@ -45,7 +45,7 @@
         "egress_lossy_profile": {
             "pool":"ingress_lossless_pool",
             "size":"0",
-            "dynamic_th":"-1"
+            "dynamic_th":"-4"
         }
     },
 
diff --git a/src/sonic-config-engine/tests/sample_output/py3/buffer-nokia-ixr7250e-36x100g.json b/src/sonic-config-engine/tests/sample_output/py3/buffer-nokia-ixr7250e-36x100g.json
index 4ed219574116..7e39255e71d4 100644
--- a/src/sonic-config-engine/tests/sample_output/py3/buffer-nokia-ixr7250e-36x100g.json
+++ b/src/sonic-config-engine/tests/sample_output/py3/buffer-nokia-ixr7250e-36x100g.json
@@ -45,7 +45,7 @@
         "egress_lossy_profile": {
             "pool":"ingress_lossless_pool",
             "size":"0",
-            "dynamic_th":"-1"
+            "dynamic_th":"-4"
         }
     },
 
diff --git a/src/sonic-config-engine/tests/sample_output/py3/buffer-nokia-ixr7250e-36x400g.json b/src/sonic-config-engine/tests/sample_output/py3/buffer-nokia-ixr7250e-36x400g.json
index 7b81862068e8..010a8677eed9 100644
--- a/src/sonic-config-engine/tests/sample_output/py3/buffer-nokia-ixr7250e-36x400g.json
+++ b/src/sonic-config-engine/tests/sample_output/py3/buffer-nokia-ixr7250e-36x400g.json
@@ -45,7 +45,7 @@
         "egress_lossy_profile": {
             "pool":"ingress_lossless_pool",
             "size":"0",
-            "dynamic_th":"-1"
+            "dynamic_th":"-4"
         }
     },