dprital · dprital · Nov 6, 2025 · Jan 20, 2026
diff --git a/device/mellanox/x86_64-nvidia_sn4700d-r0/ACS-SN4700D/buffers.json.j2 b/device/mellanox/x86_64-nvidia_sn4700d-r0/ACS-SN4700D/buffers.json.j2
@@ -0,0 +1 @@
+../../x86_64-mlnx_msn2700-r0/ACS-MSN2700/buffers.json.j2
diff --git a/device/mellanox/x86_64-nvidia_sn4700d-r0/ACS-SN4700D/buffers_defaults_objects.j2 b/device/mellanox/x86_64-nvidia_sn4700d-r0/ACS-SN4700D/buffers_defaults_objects.j2
@@ -0,0 +1 @@
+../../x86_64-mlnx_msn2700-r0/ACS-MSN2700/buffers_defaults_objects.j2
diff --git a/device/mellanox/x86_64-nvidia_sn4700d-r0/ACS-SN4700D/buffers_defaults_t0.j2 b/device/mellanox/x86_64-nvidia_sn4700d-r0/ACS-SN4700D/buffers_defaults_t0.j2
@@ -0,0 +1,40 @@
+{#
+    SPDX-FileCopyrightText: NVIDIA CORPORATION & AFFILIATES
+    Copyright (c) 2020-2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+    Apache-2.0
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+#}
+{% set default_cable = '5m' %}
+{% set ingress_lossless_pool_size =  '26451968' %}
+{% set ingress_lossy_pool_size =  '26451968' %}
+{% set egress_lossless_pool_size =  '60817392' %}
+{% set egress_lossy_pool_size =  '26451968' %}
+
+{% import 'buffers_defaults_objects.j2' as defs with context %}
+
+{%- macro generate_buffer_pool_and_profiles_with_inactive_ports(port_names_inactive) %}
+{{ defs.generate_buffer_pool_and_profiles_with_inactive_ports(port_names_inactive) }}
+{%- endmacro %}
+
+{%- macro generate_profile_lists_with_inactive_ports(port_names_active, port_names_inactive) %}
+{{ defs.generate_profile_lists(port_names_active, port_names_inactive) }}
+{%- endmacro %}
+
+{%- macro generate_queue_buffers_with_inactive_ports(port_names_active, port_names_inactive) %}
+{{ defs.generate_queue_buffers(port_names_active, port_names_inactive) }}
+{%- endmacro %}
+
+{%- macro generate_pg_profiles_with_inactive_ports(port_names_active, port_names_inactive) %}
+{{ defs.generate_pg_profiles(port_names_active, port_names_inactive) }}
+{%- endmacro %}
diff --git a/device/mellanox/x86_64-nvidia_sn4700d-r0/ACS-SN4700D/buffers_defaults_t1.j2 b/device/mellanox/x86_64-nvidia_sn4700d-r0/ACS-SN4700D/buffers_defaults_t1.j2
@@ -0,0 +1,40 @@
+{#
+    SPDX-FileCopyrightText: NVIDIA CORPORATION & AFFILIATES
+    Copyright (c) 2020-2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+    Apache-2.0
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+#}
+{% set default_cable = '5m' %}
+{% set ingress_lossless_pool_size =  '20627456' %}
+{% set ingress_lossy_pool_size =  '20627456' %}
+{% set egress_lossless_pool_size =  '60817392' %}
+{% set egress_lossy_pool_size =  '20627456' %}
+
+{% import 'buffers_defaults_objects.j2' as defs with context %}
+
+{%- macro generate_buffer_pool_and_profiles_with_inactive_ports(port_names_inactive) %}
+{{ defs.generate_buffer_pool_and_profiles_with_inactive_ports(port_names_inactive) }}
+{%- endmacro %}
+
+{%- macro generate_profile_lists_with_inactive_ports(port_names_active, port_names_inactive) %}
+{{ defs.generate_profile_lists(port_names_active, port_names_inactive) }}
+{%- endmacro %}
+
+{%- macro generate_queue_buffers_with_inactive_ports(port_names_active, port_names_inactive) %}
+{{ defs.generate_queue_buffers(port_names_active, port_names_inactive) }}
+{%- endmacro %}
+
+{%- macro generate_pg_profiles_with_inactive_ports(port_names_active, port_names_inactive) %}
+{{ defs.generate_pg_profiles(port_names_active, port_names_inactive) }}
+{%- endmacro %}
diff --git a/device/mellanox/x86_64-nvidia_sn4700d-r0/ACS-SN4700D/buffers_dynamic.json.j2 b/device/mellanox/x86_64-nvidia_sn4700d-r0/ACS-SN4700D/buffers_dynamic.json.j2
@@ -0,0 +1 @@
+../../x86_64-mlnx_msn2700-r0/ACS-MSN2700/buffers_dynamic.json.j2
diff --git a/device/mellanox/x86_64-nvidia_sn4700d-r0/ACS-SN4700D/create_only_config_db_buffers.json b/device/mellanox/x86_64-nvidia_sn4700d-r0/ACS-SN4700D/create_only_config_db_buffers.json
@@ -0,0 +1,7 @@
+{
+    "DEVICE_METADATA": {
+        "localhost": {
+            "create_only_config_db_buffers": "true"
+        }
+    }
+}
diff --git a/device/mellanox/x86_64-nvidia_sn4700d-r0/ACS-SN4700D/hwsku.json b/device/mellanox/x86_64-nvidia_sn4700d-r0/ACS-SN4700D/hwsku.json
@@ -0,0 +1,100 @@
+{
+    "interfaces": {
+        "Ethernet0": {
+            "default_brkout_mode": "1x400G[200G,100G,50G,40G,25G,10G,1G]"
+        },
+        "Ethernet8": {
+            "default_brkout_mode": "1x400G[200G,100G,50G,40G,25G,10G,1G]"
+        },
+        "Ethernet16": {
+            "default_brkout_mode": "1x400G[200G,100G,50G,40G,25G,10G,1G]"
+        },
+        "Ethernet24": {
+            "default_brkout_mode": "1x400G[200G,100G,50G,40G,25G,10G,1G]"
+        },
+        "Ethernet32": {
+            "default_brkout_mode": "1x400G[200G,100G,50G,40G,25G,10G,1G]"
+        },
+        "Ethernet40": {
+            "default_brkout_mode": "1x400G[200G,100G,50G,40G,25G,10G,1G]"
+        },
+        "Ethernet48": {
+            "default_brkout_mode": "1x400G[200G,100G,50G,40G,25G,10G,1G]"
+        },
+        "Ethernet56": {
+            "default_brkout_mode": "1x400G[200G,100G,50G,40G,25G,10G,1G]"
+        },
+        "Ethernet64": {
+            "default_brkout_mode": "1x400G[200G,100G,50G,40G,25G,10G,1G]"
+        },
+        "Ethernet72": {
+            "default_brkout_mode": "1x400G[200G,100G,50G,40G,25G,10G,1G]"
+        },
+        "Ethernet80": {
+            "default_brkout_mode": "1x400G[200G,100G,50G,40G,25G,10G,1G]"
+        },
+        "Ethernet88": {
+            "default_brkout_mode": "1x400G[200G,100G,50G,40G,25G,10G,1G]"
+        },
+        "Ethernet96": {
+            "default_brkout_mode": "1x400G[200G,100G,50G,40G,25G,10G,1G]"
+        },
+        "Ethernet104": {
+            "default_brkout_mode": "1x400G[200G,100G,50G,40G,25G,10G,1G]"
+        },
+        "Ethernet112": {
+            "default_brkout_mode": "1x400G[200G,100G,50G,40G,25G,10G,1G]"
+        },
+        "Ethernet120": {
+            "default_brkout_mode": "1x400G[200G,100G,50G,40G,25G,10G,1G]"
+        },
+        "Ethernet128": {
+            "default_brkout_mode": "1x400G[200G,100G,50G,40G,25G,10G,1G]"
+        },
+        "Ethernet136": {
+            "default_brkout_mode": "1x400G[200G,100G,50G,40G,25G,10G,1G]"
+        },
+        "Ethernet144": {
+            "default_brkout_mode": "1x400G[200G,100G,50G,40G,25G,10G,1G]"
+        },
+        "Ethernet152": {
+            "default_brkout_mode": "1x400G[200G,100G,50G,40G,25G,10G,1G]"
+        },
+        "Ethernet160": {
+            "default_brkout_mode": "1x400G[200G,100G,50G,40G,25G,10G,1G]"
+        },
+        "Ethernet168": {
+            "default_brkout_mode": "1x400G[200G,100G,50G,40G,25G,10G,1G]"
+        },
+        "Ethernet176": {
+            "default_brkout_mode": "1x400G[200G,100G,50G,40G,25G,10G,1G]"
+        },
+        "Ethernet184": {
+            "default_brkout_mode": "1x400G[200G,100G,50G,40G,25G,10G,1G]"
+        },
+        "Ethernet192": {
+            "default_brkout_mode": "1x400G[200G,100G,50G,40G,25G,10G,1G]"
+        },
+        "Ethernet200": {
+            "default_brkout_mode": "1x400G[200G,100G,50G,40G,25G,10G,1G]"
+        },
+        "Ethernet208": {
+            "default_brkout_mode": "1x400G[200G,100G,50G,40G,25G,10G,1G]"
+        },
+        "Ethernet216": {
+            "default_brkout_mode": "1x400G[200G,100G,50G,40G,25G,10G,1G]"
+        },
+        "Ethernet224": {
+            "default_brkout_mode": "1x400G[200G,100G,50G,40G,25G,10G,1G]"
+        },
+        "Ethernet232": {
+            "default_brkout_mode": "1x400G[200G,100G,50G,40G,25G,10G,1G]"
+        },
+        "Ethernet240": {
+            "default_brkout_mode": "1x400G[200G,100G,50G,40G,25G,10G,1G]"
+        },
+        "Ethernet248": {
+            "default_brkout_mode": "1x400G[200G,100G,50G,40G,25G,10G,1G]"
+        }
+    }
+}
diff --git a/device/mellanox/x86_64-nvidia_sn4700d-r0/ACS-SN4700D/pg_profile_lookup.ini b/device/mellanox/x86_64-nvidia_sn4700d-r0/ACS-SN4700D/pg_profile_lookup.ini
@@ -0,0 +1,40 @@
+##
+## SPDX-FileCopyrightText: NVIDIA CORPORATION & AFFILIATES
+## Copyright (c) 2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+## Apache-2.0
+##
+## Licensed under the Apache License, Version 2.0 (the "License");
+## you may not use this file except in compliance with the License.
+## You may obtain a copy of the License at
+##
+## http://www.apache.org/licenses/LICENSE-2.0
+##
+## Unless required by applicable law or agreed to in writing, software
+## distributed under the License is distributed on an "AS IS" BASIS,
+## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+## See the License for the specific language governing permissions and
+## limitations under the License.
+##
+#  PG lossless profiles.
+# speed cable  size   xon    xoff   threshold
+  10000    5m 52224  19456  32768          0
+  25000    5m 52224  19456  32768          0
+  40000    5m 53248  19456  33792          0
+  50000    5m 53248  19456  33792          0
+ 100000    5m 53248  19456  33792          0
+ 200000    5m 55296  19456  35840          0
+ 400000    5m 86016  37888  38912          0
+  10000   40m 53248  19456  33792          0
+  25000   40m 55296  19456  35840          0
+  40000   40m 57344  19456  37888          0
+  50000   40m 58368  19456  38912          0
+ 100000   40m 63488  19456  44032          0
+ 200000   40m 74752  19456  55296          0
+ 400000   40m 124928 37888  77824          0
+  10000  300m 60416  19456  40960          0
+  25000  300m 73728  19456  54272          0
+  40000  300m 86016  19456  66560          0
+  50000  300m 95232  19456  75776          0
+ 100000  300m 137216 19456  117760         0
+ 200000  300m 223232 19456  203776         0
+ 400000  300m 420864 37888  373760         0
diff --git a/device/mellanox/x86_64-nvidia_sn4700d-r0/ACS-SN4700D/port_config.ini b/device/mellanox/x86_64-nvidia_sn4700d-r0/ACS-SN4700D/port_config.ini
@@ -0,0 +1,50 @@
+##
+## SPDX-FileCopyrightText: NVIDIA CORPORATION & AFFILIATES
+## Copyright (c) 2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+## Apache-2.0
+##
+## Licensed under the Apache License, Version 2.0 (the "License");
+## you may not use this file except in compliance with the License.
+## You may obtain a copy of the License at
+##
+## http://www.apache.org/licenses/LICENSE-2.0
+##
+## Unless required by applicable law or agreed to in writing, software
+## distributed under the License is distributed on an "AS IS" BASIS,
+## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+## See the License for the specific language governing permissions and
+## limitations under the License.
+##
+# name          lanes                               alias     index    speed
+Ethernet0       0,1,2,3,4,5,6,7                     etp1      1        400000
+Ethernet8       8,9,10,11,12,13,14,15               etp2      2        400000
+Ethernet16      16,17,18,19,20,21,22,23             etp3      3        400000
+Ethernet24      24,25,26,27,28,29,30,31             etp4      4        400000
+Ethernet32      32,33,34,35,36,37,38,39             etp5      5        400000
+Ethernet40      40,41,42,43,44,45,46,47             etp6      6        400000
+Ethernet48      48,49,50,51,52,53,54,55             etp7      7        400000
+Ethernet56      56,57,58,59,60,61,62,63             etp8      8        400000
+Ethernet64      64,65,66,67,68,69,70,71             etp9      9        400000
+Ethernet72      72,73,74,75,76,77,78,79             etp10     10       400000
+Ethernet80      80,81,82,83,84,85,86,87             etp11     11       400000
+Ethernet88      88,89,90,91,92,93,94,95             etp12     12       400000   
+Ethernet96      96,97,98,99,100,101,102,103         etp13     13       400000
+Ethernet104     104,105,106,107,108,109,110,111     etp14     14       400000
+Ethernet112     112,113,114,115,116,117,118,119     etp15     15       400000
+Ethernet120     120,121,122,123,124,125,126,127     etp16     16       400000
+Ethernet128     128,129,130,131,132,133,134,135     etp17     17       400000
+Ethernet136     136,137,138,139,140,141,142,143     etp18     18       400000
+Ethernet144     144,145,146,147,148,149,150,151     etp19     19       400000
+Ethernet152     152,153,154,155,156,157,158,159     etp20     20       400000
+Ethernet160     160,161,162,163,164,165,166,167     etp21     21       400000
+Ethernet168     168,169,170,171,172,173,174,175     etp22     22       400000
+Ethernet176     176,177,178,179,180,181,182,183     etp23     23       400000
+Ethernet184     184,185,186,187,188,189,190,191     etp24     24       400000
+Ethernet192     192,193,194,195,196,197,198,199     etp25     25       400000
+Ethernet200     200,201,202,203,204,205,206,207     etp26     26       400000
+Ethernet208     208,209,210,211,212,213,214,215     etp27     27       400000
+Ethernet216     216,217,218,219,220,221,222,223     etp28     28       400000
+Ethernet224     224,225,226,227,228,229,230,231     etp29     29       400000
+Ethernet232     232,233,234,235,236,237,238,239     etp30     30       400000
+Ethernet240     240,241,242,243,244,245,246,247     etp31     31       400000
+Ethernet248     248,249,250,251,252,253,254,255     etp32     32       400000
diff --git a/device/mellanox/x86_64-nvidia_sn4700d-r0/ACS-SN4700D/qos.json.j2 b/device/mellanox/x86_64-nvidia_sn4700d-r0/ACS-SN4700D/qos.json.j2
@@ -0,0 +1 @@
+../../x86_64-mlnx_msn2700-r0/ACS-MSN2700/qos.json.j2
diff --git a/device/mellanox/x86_64-nvidia_sn4700d-r0/ACS-SN4700D/sai.profile b/device/mellanox/x86_64-nvidia_sn4700d-r0/ACS-SN4700D/sai.profile
@@ -0,0 +1 @@
+SAI_INIT_CONFIG_FILE=/usr/share/sonic/hwsku/sai_4700d.xml
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		../../x86_64-mlnx_msn2700-r0/ACS-MSN2700/buffers.json.j2
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		SAI_INIT_CONFIG_FILE=/usr/share/sonic/hwsku/sai_4700d.xml