Feat(eos_designs): L2 inband ztp functionality

ansible_collections/arista/avd/molecule/eos_designs_unit_tests/intended/configs/inband-mgmt-parent.cfg

@@ -30,13 +30,15 @@ interface Port-Channel21
    switchport
    switchport trunk allowed vlan 101
    switchport mode trunk
+   port-channel lacp fallback individual
 !
 interface Port-Channel22
    description INBAND-MGMT-SUBNET-VRF_Po1
    no shutdown
    switchport
    switchport trunk allowed vlan 102
    switchport mode trunk
+   port-channel lacp fallback individual
 !
 interface Port-Channel23
    description INBAND-MGMT-IP_Po1
@@ -48,11 +50,15 @@ interface Port-Channel23
 interface Ethernet21
    description INBAND-MGMT-SUBNET_Ethernet1
    no shutdown
+   switchport access vlan 101
+   switchport mode access
    channel-group 21 mode active
 !
 interface Ethernet22
    description INBAND-MGMT-SUBNET-VRF_Ethernet1
    no shutdown
+   switchport access vlan 102
+   switchport mode access
    channel-group 22 mode active
 !
 interface Ethernet23

ansible_collections/arista/avd/molecule/eos_designs_unit_tests/intended/structured_configs/inband-mgmt-parent.yml

@@ -80,6 +80,8 @@ ethernet_interfaces:
   channel_group:
     id: 21
     mode: active
+  mode: access
+  vlans: 101
 - name: Ethernet22
   peer: inband-mgmt-subnet-vrf
   peer_interface: Ethernet1
@@ -90,6 +92,8 @@ ethernet_interfaces:
   channel_group:
     id: 22
     mode: active
+  mode: access
+  vlans: 102
 - name: Ethernet23
   peer: inband-mgmt-ip
   peer_interface: Ethernet1
@@ -107,12 +111,14 @@ port_channel_interfaces:
   shutdown: false
   mode: trunk
   vlans: '101'
+  lacp_fallback_mode: individual
 - name: Port-Channel22
   description: INBAND-MGMT-SUBNET-VRF_Po1
   type: switched
   shutdown: false
   mode: trunk
   vlans: '102'
+  lacp_fallback_mode: individual
 - name: Port-Channel23
   description: INBAND-MGMT-IP_Po1
   type: switched

ansible_collections/arista/avd/molecule/eos_designs_unit_tests/inventory/group_vars/INBAND_MGMT_TESTS.yml

@@ -25,6 +25,7 @@ l3leaf:
       only_vlans_in_use: true
   nodes:
     - name: inband-mgmt-parent
+      inband_ztp_parent: true
       id: 1
     - name: inband-mgmt-parent-vrf
       inband_mgmt_vrf: INBANDMGMT

ansible_collections/arista/avd/plugins/plugin_utils/eos_designs_shared_utils/inband_management.py

@@ -116,3 +116,7 @@ def inband_mgmt_interface(self: SharedUtils) -> str | None:
             return f"Vlan{self.inband_mgmt_vlan}"
 
         return None
+
+    @cached_property
+    def inband_ztp_parent(self: SharedUtils) -> bool:
+        return default(get(self.switch_data_combined, "inband_ztp_parent"), False)

ansible_collections/arista/avd/roles/eos_designs/python_modules/underlay/ethernet_interfaces.py

@@ -129,6 +129,8 @@ def ethernet_interfaces(self) -> list | None:
                             },
                         }
                     )
+                    if self.shared_utils.inband_ztp_parent and get(link, "child_mgmt_vlan"):
+                        ethernet_interface.update({"mode": "access", "vlans": link["child_mgmt_vlan"]})
                 else:
                     vlans = get(link, "vlans", default=[])
                     ethernet_interface.update(

ansible_collections/arista/avd/roles/eos_designs/python_modules/underlay/port_channel_interfaces.py

@@ -87,6 +87,10 @@ def port_channel_interfaces(self) -> list | None:
 
                 port_channel_interface["ptp"] = ptp_config
 
+            # Inband ZTP Port-Channel LACP Fallback
+            if self.shared_utils.inband_ztp_parent and get(link, "child_mgmt_vlan"):
+                port_channel_interface["lacp_fallback_mode"] = "individual"
+
             # Structured Config
             port_channel_interface["struct_cfg"] = link.get("structured_config")
 

ansible_collections/arista/avd/roles/eos_designs/python_modules/underlay/utils.py

@@ -84,6 +84,7 @@ def _underlay_links(self) -> list:
                         "ipv6_enable": get(uplink, "ipv6_enable"),
                         "sflow": {"enable": self.shared_utils.fabric_sflow_downlinks},
                         "structured_config": get(uplink, "structured_config"),
+                        "child_mgmt_vlan": get(peer_facts, "inband_mgmt_vlan"),
                     }
                     if (subinterfaces := get(uplink, "subinterfaces")) is not None:
                         link["subinterfaces"] = [

ansible_collections/arista/avd/roles/eos_designs/schemas/schema_fragments/defs_node_type.schema.yml

@@ -878,6 +878,14 @@ $defs:
               This setting is only applied on the devices where it is set, it does not automatically affect any parent/child devices configuration, so it must be set on each applicable node/node-group/node-type as needed.
             type: int
             default: 1500
+          inband_ztp_parent:
+            documentation_options:
+              table: node-type-inband-management-configuration
+            description: |-
+              Enable to allow downstream devices to ZTP inband
+              This setting also requires that the inband_mgmt_vlan is set for the downstream device.
+            type: bool
+            default: false
           inband_management_subnet:
             documentation_options:
               table: node-type-inband-management-configuration