Updated MMU settings for Arista-7050CX3-32S-C32 T1 topology (sonic-net#7597)

Author: vmittal-msft

device/arista/x86_64-arista_7050cx3_32s/Arista-7050CX3-32S-C32/buffers_defaults_t1.j2

@@ -0,0 +1,46 @@
+{%- set default_cable = '300m' %}
+
+{%- macro generate_port_lists(PORT_ALL) %}
+    {# Generate list of ports #}
+    {%- for port_idx in range(0,32) %}
+        {%- if PORT_ALL.append("Ethernet%d" % (port_idx * 4)) %}{%- endif %}
+    {%- endfor %}
+{%- endmacro %}
+
+{%- macro generate_buffer_pool_and_profiles() %}
+    "BUFFER_POOL": {
+        "ingress_lossless_pool": {
+            "size": "32712448",
+            "type": "ingress",
+            "mode": "dynamic",
+            "xoff": "1622016"
+        },
+        "egress_lossy_pool": {
+            "size": "24709632",
+            "type": "egress",
+            "mode": "dynamic"
+        },
+        "egress_lossless_pool": {
+            "size": "32599040",
+            "type": "egress",
+            "mode": "static"
+        }
+    },
+    "BUFFER_PROFILE": {
+        "ingress_lossy_profile": {
+            "pool":"[BUFFER_POOL|ingress_lossless_pool]",
+            "size":"0",
+            "dynamic_th":"3"
+        },
+        "egress_lossless_profile": {
+            "pool":"[BUFFER_POOL|egress_lossless_pool]",
+            "size":"0",
+            "static_th":"32599040"
+        },
+        "egress_lossy_profile": {
+            "pool":"[BUFFER_POOL|egress_lossy_pool]",
+            "size":"1792",
+            "dynamic_th":"-1"
+        }
+    },
+{%- endmacro %}