diff --git a/device/arista/x86_64-arista_7050cx3_32s/Arista-7050CX3-32S-C32/config.bcm.j2 b/device/arista/x86_64-arista_7050cx3_32s/Arista-7050CX3-32S-C32/config.bcm.j2
index 6cc4540921e4..6da9bc47c401 100644
--- a/device/arista/x86_64-arista_7050cx3_32s/Arista-7050CX3-32S-C32/config.bcm.j2
+++ b/device/arista/x86_64-arista_7050cx3_32s/Arista-7050CX3-32S-C32/config.bcm.j2
@@ -1,16 +1,24 @@
 {# Construct config.bcm to include additional soc properties per specific device metadata requirement #}
 {%- set map_prio = '' -%}
+{%- set pfcwd_sock = '' -%}
 {%- if DEVICE_METADATA is defined and DEVICE_METADATA['localhost'] is defined and DEVICE_METADATA['localhost']['subtype'] is defined -%}
 {%-     set switch_subtype = DEVICE_METADATA['localhost']['subtype'] -%}
 {%-     if 'dualtor' in switch_subtype.lower() %}
 {%-         set map_prio = 'sai_remap_prio_on_tnl_egress=1' -%}
 {%-     endif %}
 {%- endif %}
+{%- if SYSTEM_DEFAULTS is defined and 'tunnel_qos_remap' in SYSTEM_DEFAULTS and SYSTEM_DEFAULTS['tunnel_qos_remap']['status'] == 'enabled' -%}
+{%-     set pfcwd_sock =
+'hybrid_pfc_deadlock_enable=1
+pfc_deadlock_seq_control=1
+sai_pfc_dlr_init_capability=1' -%}
+{%- endif %}
 sai_load_hw_config=/etc/bcm/flex/bcm56870_a0_premium_issu/b870.6.4.1/
 l3_alpm_hit_skip=1
 sai_adjust_acl_drop_in_rx_drop=1
 sai_verify_incoming_chksum=0
 {{ map_prio }}
+{{ pfcwd_sock }}
 host_as_route_disable=1
 use_all_splithorizon_groups=1
 riot_enable=1
diff --git a/device/arista/x86_64-arista_7050cx3_32s/Arista-7050CX3-32S-D48C8/config.bcm.j2 b/device/arista/x86_64-arista_7050cx3_32s/Arista-7050CX3-32S-D48C8/config.bcm.j2
index a68ff78bab3c..d54eee299f52 100644
--- a/device/arista/x86_64-arista_7050cx3_32s/Arista-7050CX3-32S-D48C8/config.bcm.j2
+++ b/device/arista/x86_64-arista_7050cx3_32s/Arista-7050CX3-32S-D48C8/config.bcm.j2
@@ -1,16 +1,24 @@
 {# Construct config.bcm to include additional soc properties per specific device metadata requirement #}
 {%- set map_prio = '' -%}
+{%- set pfcwd_sock = '' -%}
 {%- if DEVICE_METADATA is defined and DEVICE_METADATA['localhost'] is defined and DEVICE_METADATA['localhost']['subtype'] is defined -%}
 {%-     set switch_subtype = DEVICE_METADATA['localhost']['subtype'] -%}
 {%-     if 'dualtor' in switch_subtype.lower() %}
 {%-         set map_prio = 'sai_remap_prio_on_tnl_egress=1' -%}
 {%-     endif %}
 {%- endif %}
+{%- if SYSTEM_DEFAULTS is defined and 'tunnel_qos_remap' in SYSTEM_DEFAULTS and SYSTEM_DEFAULTS['tunnel_qos_remap']['status'] == 'enabled' -%}
+{%-     set pfcwd_sock =
+'hybrid_pfc_deadlock_enable=1
+pfc_deadlock_seq_control=1
+sai_pfc_dlr_init_capability=1' -%}
+{%- endif %}
 sai_load_hw_config=/etc/bcm/flex/bcm56870_a0_premium_issu/b870.6.4.1/
 l3_alpm_hit_skip=1
 sai_adjust_acl_drop_in_rx_drop=1
 sai_verify_incoming_chksum=0
 {{ map_prio }}
+{{ pfcwd_sock }}
 host_as_route_disable=1
 use_all_splithorizon_groups=1
 riot_enable=1
diff --git a/device/arista/x86_64-arista_7260cx3_64/Arista-7260CX3-C64/config.bcm.j2 b/device/arista/x86_64-arista_7260cx3_64/Arista-7260CX3-C64/config.bcm.j2
index 7ad0311ab888..97040d332ced 100644
--- a/device/arista/x86_64-arista_7260cx3_64/Arista-7260CX3-C64/config.bcm.j2
+++ b/device/arista/x86_64-arista_7260cx3_64/Arista-7260CX3-C64/config.bcm.j2
@@ -2,6 +2,7 @@
 {%- set mmu_sock = 'mmu_init_config="MSFT-TH2-Tier1"' -%}
 {%- set IPinIP_sock = '' -%}
 {%- set map_prio = '' -%}
+{%- set pfcwd_sock = '' -%}
 {%- if DEVICE_METADATA is defined and DEVICE_METADATA['localhost'] is defined -%}
 {%-     if DEVICE_METADATA['localhost']['type'] is defined -%}
 {%-         set switch_role = DEVICE_METADATA['localhost']['type'] -%}
@@ -12,19 +13,27 @@
 {%-     if DEVICE_METADATA['localhost']['subtype'] is defined -%}
 {%-         set switch_subtype = DEVICE_METADATA['localhost']['subtype'] -%}
 {%-         if 'dualtor' in switch_subtype.lower() %}
-{%-             set IPinIP_sock = 'sai_tunnel_support=1
-                                   sai_tunnel_underlay_route_mode=1
-                                   host_as_route_disable=1
-                                   l3_ecmp_levels=2' -%}
+{%-             set IPinIP_sock =
+'sai_tunnel_support=1
+sai_tunnel_underlay_route_mode=1
+host_as_route_disable=1
+l3_ecmp_levels=2' -%}
 {%-             set map_prio = 'sai_remap_prio_on_tnl_egress=1' -%}
 {%-         endif %}
 {%-     endif %}
 {%- endif %}
+{%- if SYSTEM_DEFAULTS is defined and 'tunnel_qos_remap' in SYSTEM_DEFAULTS and SYSTEM_DEFAULTS['tunnel_qos_remap']['status'] == 'enabled' -%}
+{%-     set pfcwd_sock =
+'hybrid_pfc_deadlock_enable=1
+pfc_deadlock_seq_control=1
+sai_pfc_dlr_init_capability=1' -%}
+{%- endif %}
 {# The following is the common soc properties that used to be named "th2-a7260cx3-64-64x100G-t1.config.bcm" #}
 
 l3_alpm_hit_skip=1
 sai_adjust_acl_drop_in_rx_drop=1
 {{ map_prio }}
+{{ pfcwd_sock }}
 PHY_AN_ALLOW_PLL_CHANGE=1
 arl_clean_timeout_usec=15000000
 asf_mem_profile=2
diff --git a/device/arista/x86_64-arista_7260cx3_64/Arista-7260CX3-D108C10/config.bcm.j2 b/device/arista/x86_64-arista_7260cx3_64/Arista-7260CX3-D108C10/config.bcm.j2
index 2255d7149b6b..019f556edb8f 100644
--- a/device/arista/x86_64-arista_7260cx3_64/Arista-7260CX3-D108C10/config.bcm.j2
+++ b/device/arista/x86_64-arista_7260cx3_64/Arista-7260CX3-D108C10/config.bcm.j2
@@ -1,20 +1,29 @@
 {# Construct config.bcm to include additional soc properties per specific device metadata requirement #}
 {%- set IPinIP_sock = '' -%}
 {%- set map_prio = '' -%}
+{%- set pfcwd_sock = '' -%}
 {%- if DEVICE_METADATA is defined and DEVICE_METADATA['localhost'] is defined and DEVICE_METADATA['localhost']['subtype'] is defined -%}
 {%-     set switch_subtype = DEVICE_METADATA['localhost']['subtype'] -%}
 {%-     if 'dualtor' in switch_subtype.lower() %}
-{%-         set IPinIP_sock = 'sai_tunnel_support=1
-                               sai_tunnel_underlay_route_mode=1
-                               host_as_route_disable=1
-                               l3_ecmp_levels=2' -%}
+{%-         set IPinIP_sock =
+'sai_tunnel_support=1
+sai_tunnel_underlay_route_mode=1
+host_as_route_disable=1
+l3_ecmp_levels=2' -%}
 {%-         set map_prio = 'sai_remap_prio_on_tnl_egress=1' -%}
 {%-     endif %}
 {%- endif %}
+{%- if SYSTEM_DEFAULTS is defined and 'tunnel_qos_remap' in SYSTEM_DEFAULTS and SYSTEM_DEFAULTS['tunnel_qos_remap']['status'] == 'enabled' -%}
+{%-     set pfcwd_sock =
+'hybrid_pfc_deadlock_enable=1
+pfc_deadlock_seq_control=1
+sai_pfc_dlr_init_capability=1' -%}
+{%- endif %}
 {# The following is the common soc properties that used to be named "th2-a7260cx3-64-112x50G+8x100G.config.bcm" #}
 l3_alpm_hit_skip=1
 sai_adjust_acl_drop_in_rx_drop=1
 {{ map_prio }}
+{{ pfcwd_sock }}
 PHY_AN_ALLOW_PLL_CHANGE=1
 arl_clean_timeout_usec=15000000
 asf_mem_profile=2
diff --git a/device/arista/x86_64-arista_7260cx3_64/Arista-7260CX3-D108C8/config.bcm.j2 b/device/arista/x86_64-arista_7260cx3_64/Arista-7260CX3-D108C8/config.bcm.j2
index 642b36312d5c..1efa8ef69567 100644
--- a/device/arista/x86_64-arista_7260cx3_64/Arista-7260CX3-D108C8/config.bcm.j2
+++ b/device/arista/x86_64-arista_7260cx3_64/Arista-7260CX3-D108C8/config.bcm.j2
@@ -1,20 +1,29 @@
 {# Construct config.bcm to include additional soc properties per specific device metadata requirement #}
 {%- set IPinIP_sock = '' -%}
 {%- set map_prio = '' -%}
+{%- set pfcwd_sock = '' -%}
 {%- if DEVICE_METADATA is defined and DEVICE_METADATA['localhost'] is defined and DEVICE_METADATA['localhost']['subtype'] is defined -%}
 {%-     set switch_subtype = DEVICE_METADATA['localhost']['subtype'] -%}
 {%-     if 'dualtor' in switch_subtype.lower() %}
-{%-         set IPinIP_sock = 'sai_tunnel_support=1
-                               sai_tunnel_underlay_route_mode=1
-                               host_as_route_disable=1
-                               l3_ecmp_levels=2' -%}
+{%-         set IPinIP_sock =
+'sai_tunnel_support=1
+sai_tunnel_underlay_route_mode=1
+host_as_route_disable=1
+l3_ecmp_levels=2' -%}
 {%-         set map_prio = 'sai_remap_prio_on_tnl_egress=1' -%}
 {%-     endif %}
 {%- endif %}
+{%- if SYSTEM_DEFAULTS is defined and 'tunnel_qos_remap' in SYSTEM_DEFAULTS and SYSTEM_DEFAULTS['tunnel_qos_remap']['status'] == 'enabled' -%}
+{%-     set pfcwd_sock =
+'hybrid_pfc_deadlock_enable=1
+pfc_deadlock_seq_control=1
+sai_pfc_dlr_init_capability=1' -%}
+{%- endif %}
 {# The following is the common soc properties that used to be named "th2-a7260cx3-64-112x50G+8x100G.config.bcm" #}
 l3_alpm_hit_skip=1
 sai_adjust_acl_drop_in_rx_drop=1
 {{ map_prio }}
+{{ pfcwd_sock }}
 PHY_AN_ALLOW_PLL_CHANGE=1
 arl_clean_timeout_usec=15000000
 asf_mem_profile=2
diff --git a/device/arista/x86_64-arista_7260cx3_64/Arista-7260CX3-Q64/config.bcm.j2 b/device/arista/x86_64-arista_7260cx3_64/Arista-7260CX3-Q64/config.bcm.j2
index 5ff359e06b72..de7cac15435a 100644
--- a/device/arista/x86_64-arista_7260cx3_64/Arista-7260CX3-Q64/config.bcm.j2
+++ b/device/arista/x86_64-arista_7260cx3_64/Arista-7260CX3-Q64/config.bcm.j2
@@ -2,6 +2,7 @@
 {%- set mmu_sock = 'mmu_init_config="MSFT-TH2-Tier1"' -%}
 {%- set IPinIP_sock = '' -%}
 {%- set map_prio = '' -%}
+{%- set pfcwd_sock = '' -%}
 {%- if DEVICE_METADATA is defined and DEVICE_METADATA['localhost'] is defined -%}
 {%-     if DEVICE_METADATA['localhost']['type'] is defined -%}
 {%-         set switch_role = DEVICE_METADATA['localhost']['type'] -%}
@@ -12,18 +13,26 @@
 {%-     if DEVICE_METADATA['localhost']['subtype'] is defined -%}
 {%-         set switch_subtype = DEVICE_METADATA['localhost']['subtype'] -%}
 {%-         if 'dualtor' in switch_subtype.lower() %}
-{%-             set IPinIP_sock = 'sai_tunnel_support=1
-                                   sai_tunnel_underlay_route_mode=1
-                                   host_as_route_disable=1
-                                   l3_ecmp_levels=2' -%}
+{%-             set IPinIP_sock =
+'sai_tunnel_support=1
+sai_tunnel_underlay_route_mode=1
+host_as_route_disable=1
+l3_ecmp_levels=2' -%}
 {%-             set map_prio = 'sai_remap_prio_on_tnl_egress=1' -%}
 {%-         endif %}
 {%-     endif %}
 {%- endif %}
+{%- if SYSTEM_DEFAULTS is defined and 'tunnel_qos_remap' in SYSTEM_DEFAULTS and SYSTEM_DEFAULTS['tunnel_qos_remap']['status'] == 'enabled' -%}
+{%-     set pfcwd_sock =
+'hybrid_pfc_deadlock_enable=1
+pfc_deadlock_seq_control=1
+sai_pfc_dlr_init_capability=1' -%}
+{%- endif %}
 {# The following is the common soc properties that used to be named "th2-a7260cx3-64-64x40G.config.bcm" #}
 l3_alpm_hit_skip=1
 sai_adjust_acl_drop_in_rx_drop=1
 {{ map_prio }}
+{{ pfcwd_sock }}
 PHY_AN_ALLOW_PLL_CHANGE=1
 arl_clean_timeout_usec=15000000
 asf_mem_profile=2
diff --git a/src/sonic-config-engine/tests/data/j2_template/config.bcm.j2 b/src/sonic-config-engine/tests/data/j2_template/config.bcm.j2
index 187d40af2d4e..61aeb0eff901 100644
--- a/src/sonic-config-engine/tests/data/j2_template/config.bcm.j2
+++ b/src/sonic-config-engine/tests/data/j2_template/config.bcm.j2
@@ -2,6 +2,7 @@
 {%- set mmu_sock = 'mmu_init_config="MSFT-TH2-Tier1"' -%}
 {%- set IPinIP_sock = '' -%}
 {%- set map_prio = '' -%}
+{%- set pfcwd_sock = '' -%}
 {%- if DEVICE_METADATA is defined and DEVICE_METADATA['localhost'] is defined -%}
 {%-     if DEVICE_METADATA['localhost']['type'] is defined -%}
 {%-         set switch_role = DEVICE_METADATA['localhost']['type'] -%}
@@ -12,17 +13,25 @@
 {%-     if DEVICE_METADATA['localhost']['subtype'] is defined -%}
 {%-         set switch_subtype = DEVICE_METADATA['localhost']['subtype'] -%}
 {%-         if 'dualtor' in switch_subtype.lower() %}
-{%-             set IPinIP_sock = 'sai_tunnel_support=1
-                                   sai_tunnel_underlay_route_mode=1
-                                   host_as_route_disable=1
-                                   l3_ecmp_levels=2' -%}
+{%-             set IPinIP_sock =
+'sai_tunnel_support=1
+sai_tunnel_underlay_route_mode=1
+host_as_route_disable=1
+l3_ecmp_levels=2' -%}
 {%-             set map_prio = 'sai_remap_prio_on_tnl_egress=1' -%}
 {%-         endif %}
 {%-     endif %}
 {%- endif %}
+{%- if SYSTEM_DEFAULTS is defined and 'tunnel_qos_remap' in SYSTEM_DEFAULTS and SYSTEM_DEFAULTS['tunnel_qos_remap']['status'] == 'enabled' -%}
+{%-     set pfcwd_sock =
+'hybrid_pfc_deadlock_enable=1
+pfc_deadlock_seq_control=1
+sai_pfc_dlr_init_capability=1' -%}
+{%- endif %}
 {# The following is the common soc properties that used to be named "th2-a7260cx3-64-64x100G-t1.config.bcm" #}
 
 l3_alpm_hit_skip=1
 {{ map_prio }}
 {{ mmu_sock }}
 {{ IPinIP_sock }}
+{{ pfcwd_sock }}
diff --git a/src/sonic-config-engine/tests/sample_output/py3/arista7050cx3-dualtor.config.bcm b/src/sonic-config-engine/tests/sample_output/py3/arista7050cx3-dualtor.config.bcm
index 7d21ac82f120..0f61b372e838 100644
--- a/src/sonic-config-engine/tests/sample_output/py3/arista7050cx3-dualtor.config.bcm
+++ b/src/sonic-config-engine/tests/sample_output/py3/arista7050cx3-dualtor.config.bcm
@@ -3,6 +3,9 @@ l3_alpm_hit_skip=1
 sai_remap_prio_on_tnl_egress=1
 mmu_init_config="MSFT-TH2-Tier0"
 sai_tunnel_support=1
-                                   sai_tunnel_underlay_route_mode=1
-                                   host_as_route_disable=1
-                                   l3_ecmp_levels=2
+sai_tunnel_underlay_route_mode=1
+host_as_route_disable=1
+l3_ecmp_levels=2
+hybrid_pfc_deadlock_enable=1
+pfc_deadlock_seq_control=1
+sai_pfc_dlr_init_capability=1
diff --git a/src/sonic-config-engine/tests/sample_output/py3/arista7260-dualtor.config.bcm b/src/sonic-config-engine/tests/sample_output/py3/arista7260-dualtor.config.bcm
index 7d21ac82f120..0f61b372e838 100644
--- a/src/sonic-config-engine/tests/sample_output/py3/arista7260-dualtor.config.bcm
+++ b/src/sonic-config-engine/tests/sample_output/py3/arista7260-dualtor.config.bcm
@@ -3,6 +3,9 @@ l3_alpm_hit_skip=1
 sai_remap_prio_on_tnl_egress=1
 mmu_init_config="MSFT-TH2-Tier0"
 sai_tunnel_support=1
-                                   sai_tunnel_underlay_route_mode=1
-                                   host_as_route_disable=1
-                                   l3_ecmp_levels=2
+sai_tunnel_underlay_route_mode=1
+host_as_route_disable=1
+l3_ecmp_levels=2
+hybrid_pfc_deadlock_enable=1
+pfc_deadlock_seq_control=1
+sai_pfc_dlr_init_capability=1
diff --git a/src/sonic-config-engine/tests/sample_output/py3/arista7260-t1.config.bcm b/src/sonic-config-engine/tests/sample_output/py3/arista7260-t1.config.bcm
index 84a917290f24..a76c2173f436 100644
--- a/src/sonic-config-engine/tests/sample_output/py3/arista7260-t1.config.bcm
+++ b/src/sonic-config-engine/tests/sample_output/py3/arista7260-t1.config.bcm
@@ -3,3 +3,6 @@ l3_alpm_hit_skip=1
 
 mmu_init_config="MSFT-TH2-Tier1"
 
+hybrid_pfc_deadlock_enable=1
+pfc_deadlock_seq_control=1
+sai_pfc_dlr_init_capability=1