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module ieee802-dot1q-bridge {
  namespace "urn:ieee:std:802.1Q:yang:ieee802-dot1q-bridge";
  prefix dot1q;

  import ieee802-types {
    prefix ieee;
  }
  import ietf-yang-types {
    prefix yang;
  }
  import ietf-interfaces {
    prefix if;
  }
  import iana-if-type {
    prefix ianaif;
  }
  import ieee802-dot1q-types {
    prefix dot1qtypes;
  }

  organization
    "IEEE 802.1 Working Group";
  contact
    "WG-URL: http://ieee802.org/1/
     WG-EMail: stds-802-1-l@ieee.org
     
     Contact: IEEE 802.1 Working Group Chair
     Postal: C/O IEEE 802.1 Working Group
             IEEE Standards Association
             445 Hoes Lane
             Piscataway, NJ 08854
             USA
     
     E-mail: stds-802-1-chairs@ieee.org";
  description
    "This YANG module describes the bridge configuration model for the
     following IEEE 802.1Q Bridges:
      1) Two Port MAC Relays
      2) Customer VLAN Bridges
      3) Provider Bridges.";

  revision 2021-04-09 {
    description
      "Added some prefixes to avoid warnings in yang validator";
    reference
      "";
  }
  revision 2020-11-24 {
    description
      "Qcw rebase from 2020-11-06";
    reference
      "IEEE Std 802.1Qcr-2020, Bridges and Bridged Networks -
       Asynchronous Traffic Shaping.";
  }
  revision 2020-11-06 {
    description
      "Published as part of IEEE Std 802.1Qcr-2020.
       Third version.";
    reference
      "IEEE Std 802.1Qcr-2020, Bridges and Bridged Networks -
       Asynchronous Traffic Shaping.";
  }
  revision 2020-06-04 {
    description
      "Published as part of IEEE Std 802.1Qcx-2020.
       Second version.";
    reference
      "IEEE Std 802.1Qcx-2020, Bridges and Bridged Networks -
       YANG Data Model for Connectivity Fault Management.";
  }
  revision 2018-03-07 {
    description
      "Published as part of IEEE Std 802.1Q-2018.
       Initial version.";
    reference
      "IEEE Std 802.1Q-2018, Bridges and Bridged Networks.";
  }

  feature ingress-filtering {
    description
      "Each Port may support an Enable Ingress Filtering parameter. A
       frame received on a Port that is not in the member set (8.8.10)
       associated with the frames VID shall be discarded if this
       parameter is set. The default value for this parameter is reset,
       i.e., Disable Ingress Filtering, for all Ports. Any Port that
       supports setting this parameter shall also support resetting it.
       The parameter may be configured by the management operations
       defined in Clause 12.";
    reference
      "8.6.2 of IEEE Std 802.1Q-2018";
  }

  feature extended-filtering-services {
    description
      "Extended Filtering Services support the filtering behavior
       required for regions of a network in which potential recipients
       of multicast frames exist, and where both the potential
       recipients of frames and the Bridges are able to support dynamic
       configuration of filtering information for group MAC addresses.
       In order to integrate this extended filtering behavior with the
       needs of regions of the network that support only Basic
       Filtering Services, Bridges that support Extended Filtering
       Services can be statically and dynamically configured to modify
       their filtering behavior on a per-group MAC address basis, and
       also on the basis of the overall filtering service provided by
       each outbound Port with regard to multicast frames. The latter
       capability permits configuration of the Ports default forwarding
       or filtering behavior with regard to group MAC addresses for
       which no specific static or dynamic filtering information has
       been configured.";
    reference
      "8.8.4 of IEEE Std 802.1Q-2018
       Clause 10 of IEEE Std 802.1Q-2018";
  }

  feature port-and-protocol-based-vlan {
    description
      "A VLAN-aware bridge component implementation in conformance to
       the provisions of this standard for Port-and-Protocol-based VLAN
       classification (5.4.1) shall 1) Support one or more of the
       following Protocol Classifications and Protocol Template
       formats: Ethernet, RFC_1042, SNAP_8021H, SNAP_Other, or
       LLC_Other (6.12); and may 2) Support configuration of the
       contents of the Protocol Group Database.";
    reference
      "5.4.1.2 of IEEE Std 802.1Q-2018";
  }

  feature flow-filtering {
    description
      "Flow filtering support enables Bridges to distinguish frames
       belonging to different client flows and to use this information
       in the forwarding process. Information related to client flows
       may be used at the boundary of an SPT Domain to generate a flow
       hash value. The flow hash, carried in an F-TAG, serves to
       distinguish frames belonging to different flows and can be used
       in the forwarding process to distribute frames over equal cost
       paths. This provides for finer granularity load spreading while
       maintaining frame order for each client flow.";
    reference
      "44.2 of IEEE Std 802.1Q-2018";
  }

  feature simple-bridge-port {
    description
      "A simple bridge port allows underlying (MAC) layers to share
       the same Interface as the Bridge Port.";
  }

  feature flexible-bridge-port {
    description
      "A flexible bridge port supports an Interface that is a Bridge
       Port to be a separate Interface from the underlying (MAC) layer.";
  }

  identity type-of-bridge {
    description
      "Represents the configured Bridge type.";
  }

  identity customer-vlan-bridge {
    base type-of-bridge;
    description
      "Base identity for a Customer VLAN Bridge.";
  }

  identity provider-bridge {
    base type-of-bridge;
    description
      "Base identity for a Provider Bridge (PB).";
  }

  identity provider-edge-bridge {
    base type-of-bridge;
    description
      "Base identity for a Provider Edge Bridge (PEB).";
  }

  identity two-port-mac-relay-bridge {
    base type-of-bridge;
    description
      "Base identity for a Two Port MAC Relay (TPMR).";
  }

  identity type-of-component {
    description
      "Represents the type of Component.";
  }

  identity c-vlan-component {
    base type-of-component;
    description
      "Base identity for a C-VLAN component.";
  }

  identity s-vlan-component {
    base type-of-component;
    description
      "Base identity for a S-VLAN component.";
  }

  identity d-bridge-component {
    base type-of-component;
    description
      "Base identity for a VLAN unaware component.";
  }

  identity edge-relay-component {
    base type-of-component;
    description
      "Base identity for an EVB station ER component.";
  }

  identity type-of-port {
    description
      "Represents the type of Bridge port.";
  }

  identity c-vlan-bridge-port {
    base type-of-port;
    description
      "Indicates the port can be a C-TAG aware port of an enterprise
       VLAN aware Bridge.";
  }

  identity provider-network-port {
    base type-of-port;
    description
      "Indicates the port can be an S-TAG aware port of a Provider
       Bridge or Backbone Edge Bridge used for connections within a PBN
       (Provider Bridged Network) or PBBN (Provider Backbone Bridged
       Network).";
  }

  identity customer-network-port {
    base type-of-port;
    description
      "Indicates the port can be an S-TAG aware port of a Provider
       Bridge or Backbone Edge Bridge used for connections to the
       exterior of a PBN (Provider Bridged Network) or PBBN (Provider
       Backbone Bridged Network).";
  }

  identity customer-edge-port {
    base type-of-port;
    description
      "Indicates the port can be a C-TAG aware port of a Provider
       Bridge used for connections to the exterior of a PBN (Provider
       Bridged Network) or PBBN (Provider Backbone Bridged Network).";
  }

  identity d-bridge-port {
    base type-of-port;
    description
      "Indicates the port can be a VLAN-unaware member of an 802.1Q
       Bridge.";
  }

  identity remote-customer-access-port {
    base type-of-port;
    description
      "Indicates the port can be an S-TAG aware port of a Provider
       Bridge capable of providing Remote Customer Service Interfaces.";
  }

  identity bridge-interface {
    description
      "Generic interface property that represents any interface that
       can be associated with an IEEE 802.1Q compliant Bridge
       component. Any new Interface types would derive from this
       identity to automatically pick up Bridge related configuration
       or operational data.";
  }

  container bridges {
    description
      "Contains the Bridge(s) configuration information.";
    list bridge {
      key "name";
      unique "address";
      description
        "Provides configuration data in support of the Bridge
         Configuration resources. There is a single bridge data node
         per Bridge.";
      leaf name {
        type dot1qtypes:name-type;
        description
          "A text string associated with the Bridge, of locally
           determined significance.";
        reference
          "12.4 of IEEE Std 802.1Q-2018";
      }
      leaf address {
        type ieee:mac-address;
        mandatory true;
        description
          "The MAC address for the Bridge from which the Bridge
           Identifiers used by the STP, RSTP, and MSTP are derived.";
        reference
          "12.4 of IEEE Std 802.1Q-2018";
      }
      leaf bridge-type {
        type identityref {
          base type-of-bridge;
        }
        mandatory true;
        description
          "The type of Bridge.";
      }
      leaf ports {
        type uint16 {
          range "1..4095";
        }
        config false;
        description
          "The number of Bridge Ports (MAC Entities)";
        reference
          "12.4 of IEEE Std 802.1Q-2018";
      }
      leaf up-time {
        type yang:zero-based-counter32;
        units "seconds";
        config false;
        description
          "The count in seconds of the time elapsed since the Bridge
           was last reset or initialized.";
        reference
          "12.4 of IEEE Std 802.1Q-2018";
      }
      leaf components {
        type uint32;
        config false;
        description
          "The number of components associated with the Bridge.";
      }
      list component {
        key "name";
        description
          "The set of components associated with a given Bridge. For
           example, - A TPMR is associated with a single VLAN
           unaware component. - A Customer VLAN Bridge is associated
           with a single VLAN aware component. - A Provider Bridge is
           associated with a single S-VLAN component and zero or more
           C-VLAN components.";
        reference
          "12.3 of IEEE Std 802.1Q-2018";
        leaf name {
          type string;
          description
            "The name of the Component.";
        }
        leaf id {
          type uint32;
          description
            "Unique identifier for a particular Bridge component
             within the system.";
          reference
            "12.3, item l) of IEEE Std 802.1Q-2018";
        }
        leaf type {
          type identityref {
            base type-of-component;
          }
          mandatory true;
          description
            "The type of component used to classify a particular
             Bridge component within a Bridge system comprising
             multiple components.";
          reference
            "12.3, item m) of IEEE Std 802.1Q-2018";
        }
        leaf address {
          type ieee:mac-address;
          description
            "Unique EUI-48 Universally Administered MAC address
             assigned to a Bridge component.";
          reference
            "13.24 of IEEE Std 802.1Q-2018
             8.13.8 of IEEE Std 802.1Q-2018";
        }
        leaf traffic-class-enabled {
          type boolean;
          default "true";
          description
            "Indication of Traffic Classes enablement associated with
             the Bridge Component. A value of True indicates that
             Traffic Classes are enabled on this Bridge Component. A
             value of False indicates that the Bridge Component
             operates with a single priority level for all traffic.";
          reference
            "12.4.1.5.1 of IEEE Std 802.1Q-2018";
        }
        leaf ports {
          type uint16 {
            range "1..4095";
          }
          config false;
          description
            "The number of Bridge Ports associated with the Bridge
             Component.";
          reference
            "12.4.1.1.3, item c) of IEEE Std 802.1Q-2018";
        }
        leaf-list bridge-port {
          type if:interface-ref;
          config false;
          description
            "List of bridge-port references.";
        }
        container capabilities {
          config false;
          description
            "Array of Boolean values of the feature capabilities
             associated with a given Bridge Component.";
          reference
            "12.10.1.1.3, item b) of IEEE Std 802.1Q-2018
             12.4.1.5.2 of IEEE Std 802.1Q-2018";
          leaf extended-filtering {
            type boolean;
            default "false";
            description
              "Can perform filtering on individual multicast addresses
               controlled by MMRP.";
            reference
              "12.4.1.5.2 of IEEE Std 802.1Q-2018";
          }
          leaf traffic-classes {
            type boolean;
            default "false";
            description
              "Can map priority to multiple traffic classes.";
            reference
              "12.4.1.5.2 of IEEE Std 802.1Q-2018";
          }
          leaf static-entry-individual-port {
            type boolean;
            default "false";
            description
              "Static entries per port.";
            reference
              "12.4.1.5.2 of IEEE Std 802.1Q-2018";
          }
          leaf ivl-capable {
            type boolean;
            default "true";
            description
              "Independent VLAN Learning (IVL).";
            reference
              "12.4.1.5.2 of IEEE Std 802.1Q-2018";
          }
          leaf svl-capable {
            type boolean;
            default "false";
            description
              "Shared VLAN Learning (SVL).";
            reference
              "12.4.1.5.2 of IEEE Std 802.1Q-2018";
          }
          leaf hybrid-capable {
            type boolean;
            default "false";
            description
              "Both IVL and SVL simultaneously.";
            reference
              "12.4.1.5.2 of IEEE Std 802.1Q-2018";
          }
          leaf configurable-pvid-tagging {
            type boolean;
            default "false";
            description
              "Whether the implementation supports the ability to
               override the default PVID setting and its egress status
               (VLAN-tagged or Untagged) on each port.";
            reference
              "12.4.1.5.2 of IEEE Std 802.1Q-2018";
          }
          leaf local-vlan-capable {
            type boolean;
            default "false";
            description
              "Can support multiple local Bridges, outside the scope
               of 802.1Q defined VLANs.";
            reference
              "12.4.1.5.2 of IEEE Std 802.1Q-2018";
          }
        }
        container filtering-database {
          when "../../bridge-type != 'dot1q:two-port-mac-relay-bridge'" {
            description
              "Applies to non TPMRs.";
          }
          description
            "Contains filtering information used by the Forwarding
             Process in deciding through which Ports of the Bridge
             frames should be forwarded.";
          reference
            "12.7 of IEEE Std 802.1Q-2018";
          leaf aging-time {
            type uint32 {
              range "10..10000000";
            }
            units "seconds";
            default "300";
            description
              "The timeout period in seconds for aging out
               dynamically-learned forwarding information.";
            reference
              "12.7 of IEEE Std 802.1Q-2018
               8.8.3 of IEEE Std 802.1Q-2018";
          }
          leaf size {
            type yang:gauge32;
            config false;
            description
              "The maximum number of entries that can be held in the
               FDB.";
            reference
              "12.7 of IEEE Std 802.1Q-2018";
          }
          leaf static-entries {
            type yang:gauge32;
            config false;
            description
              "The number of Static Filtering entries currently in the
               FDB.";
            reference
              "12.7 of IEEE Std 802.1Q-2018
               8.8.1 of IEEE Std 802.1Q-2018";
          }
          leaf dynamic-entries {
            type yang:gauge32;
            config false;
            description
              "The number of Dynamic Filtering entries currently in
               the FDB.";
            reference
              "12.7 of IEEE Std 802.1Q-2018
               8.8.3 of IEEE Std 802.1Q-2018";
          }
          leaf static-vlan-registration-entries {
            type yang:gauge32;
            config false;
            description
              "The number of Static VLAN Registration entries
               currently in the FDB.";
            reference
              "12.7 of IEEE Std 802.1Q-2018
               8.8.2 of IEEE Std 802.1Q-2018";
          }
          leaf dynamic-vlan-registration-entries {
            type yang:gauge32;
            config false;
            description
              "The number of Dynamic VLAN Registration entries
               currently in the FDB.";
            reference
              "12.7 of IEEE Std 802.1Q-2018
               8.8.5 of IEEE Std 802.1Q-2018";
          }
          leaf mac-address-registration-entries {
            if-feature "extended-filtering-services";
            type yang:gauge32;
            config false;
            description
              "The number of MAC Address Registration entries
               currently in the FDB.";
            reference
              "12.7 of IEEE Std 802.1Q-2018
               8.8.4 of IEEE Std 802.1Q-2018";
          }
          list filtering-entry {
            key "database-id vids address";
            description
              "Information for the entries associated with the
               Permanent Database.";
            leaf database-id {
              type uint32;
              description
                "The identity of this Filtering Database.";
              reference
                "12.7.7 of IEEE Std 802.1Q-2018";
            }
            leaf address {
              type ieee:mac-address;
              description
                "A MAC address (unicast, multicast, broadcast) for
                 which the device has forwarding and/or filtering
                 information.";
              reference
                "12.7.7 of IEEE Std 802.1Q-2018";
            }
            leaf vids {
              type dot1qtypes:vid-range-type;
              description
                "The set of VLAN identifiers to which this entry
                 applies.";
              reference
                "12.7.7 of IEEE Std 802.1Q-2018";
            }
            leaf entry-type {
              type enumeration {
                enum "static" {
                  description
                    "Static entry type";
                }
                enum "dynamic" {
                  description
                    "Dynamic/learnt entry type";
                }
              }
              description
                "The type of filtering entry. Whether static or
                 dynamic. Static entries can be created, deleted, and
                 retrieved. However, dynamic entries can only be
                 deleted or retrieved by the management entity.
                 Consequently, a Bridge is not required to accept a
                 command that can alter the dynamic entries except
                 delete a dynamic entry.";
              reference
                "12.7.7 of IEEE Std 802.1Q-2018";
            }
            uses dot1qtypes:port-map-grouping;
            leaf status {
              type enumeration {
                enum "other" {
                  description
                    "None of the following. This may include the case
                     where some other object is being used to determine
                     if and how frames addressed to the value of the
                     corresponding instance of 'address' are being
                     forwarded.";
                }
                enum "invalid" {
                  description
                    "This entry is no longer valid (e.g., it was
                     learned but has since aged out), but has not yet
                     been flushed from the table.";
                }
                enum "learned" {
                  description
                    "The value of the corresponding instance of the
                     port node was learned and is being used.";
                }
                enum "self" {
                  description
                    "The value of the corresponding instance of the
                     address node representing one of the devices
                     address.";
                }
                enum "mgmt" {
                  description
                    "The value of the corresponding instance of
                     address node that is also the value of an existing
                     instance.";
                }
              }
              config false;
              description
                "The status of this entry.";
            }
          }
          list vlan-registration-entry {
            key "database-id vids";
            description
              "The VLAN Registration Entries models the operations
               that can be performed on a single VLAN Registration
               Entry in the FDB. The set of VLAN Registration Entries
               within the FDB changes under management control and also
               as a result of MVRP exchanges";
            reference
              "12.7.5 of IEEE Std 802.1Q-2018";
            leaf database-id {
              type uint32;
              description
                "The identity of this Filtering Database.";
              reference
                "12.7.7 of IEEE Std 802.1Q-2018";
            }
            leaf vids {
              type dot1qtypes:vid-range-type;
              description
                "The set of VLAN identifiers to which this entry
                 applies.";
              reference
                "12.7.7 of IEEE Std 802.1Q-2018";
            }
            leaf entry-type {
              type enumeration {
                enum "static" {
                  description
                    "Static entry type";
                }
                enum "dynamic" {
                  description
                    "Dynamic/learnt entry type";
                }
              }
              description
                "The type of filtering entry. Whether static or
                 dynamic. Static entries can be created, deleted, and
                 retrieved. However, dynamic entries can only be
                 deleted or retrieved by the management entity.
                 Consequently, a Bridge is not required to accept a
                 command that can alter the dynamic entries except
                 delete a dynamic entry.";
              reference
                "12.7.7 of IEEE Std 802.1Q-2018";
            }
            uses dot1qtypes:port-map-grouping;
          }
        }
        container permanent-database {
          description
            "The Permanent Database container models the operations
             that can be performed on, or affect, the Permanent
             Database. There is a single Permanent Database per FDB.";
          leaf size {
            type yang:gauge32;
            config false;
            description
              "The maximum number of entries that can be held in the
               FDB.";
            reference
              "12.7.6 of IEEE Std 802.1Q-2018";
          }
          leaf static-entries {
            type yang:gauge32;
            config false;
            description
              "The number of Static Filtering entries currently in the
               FDB.";
            reference
              "12.7.6 of IEEE Std 802.1Q-2018";
          }
          leaf static-vlan-registration-entries {
            type yang:gauge32;
            config false;
            description
              "The number of Static VLAN Registration entries
               currently in the FDB.";
            reference
              "12.7.6 of IEEE Std 802.1Q-2018";
          }
          list filtering-entry {
            key "database-id vids address";
            description
              "Information for the entries associated with the
               Permanent Database.";
            leaf database-id {
              type uint32;
              description
                "The identity of this Filtering Database.";
              reference
                "12.7.7 of IEEE Std 802.1Q-2018";
            }
            leaf address {
              type ieee:mac-address;
              description
                "A MAC address (unicast, multicast, broadcast) for
                 which the device has forwarding and/or filtering
                 information.";
              reference
                "12.7.7 of IEEE Std 802.1Q-2018";
            }
            leaf vids {
              type dot1qtypes:vid-range-type;
              description
                "The set of VLAN identifiers to which this entry
                 applies.";
              reference
                "12.7.7 of IEEE Std 802.1Q-2018";
            }
            leaf status {
              type enumeration {
                enum "other" {
                  description
                    "None of the following. This may include the case
                     where some other object is being used to determine
                     if and how frames addressed to the value of the
                     corresponding instance of 'address' are being
                     forwarded.";
                }
                enum "invalid" {
                  description
                    "This entry is no longer valid (e.g., it was
                     learned but has since aged out), but has not yet
                     been flushed from the table.";
                }
                enum "learned" {
                  description
                    "The value of the corresponding instance of the
                     port node was learned and is being used.";
                }
                enum "self" {
                  description
                    "The value of the corresponding instance of the
                     address node representing one of the devices
                     address.";
                }
                enum "mgmt" {
                  description
                    "The value of the corresponding instance of
                     address node that is also the value of an existing
                     instance.";
                }
              }
              config false;
              description
                "The status of this entry.";
            }
            uses dot1qtypes:port-map-grouping;
          }
        }
        container bridge-vlan {
          when "../../bridge-type != 'dot1q:two-port-mac-relay-bridge'" {
            description
              "Applies to non TPMRs.";
          }
          description
            "The Bridge VLAN container models configuration
             information that modify, or inquire about, the overall
             configuration of the Bridges VLAN resources. There is a
             single Bridge VLAN Configuration managed object per
             Bridge.";
          reference
            "12.10 of IEEE Std 802.1Q-2018";
          leaf version {
            type uint16;
            config false;
            description
              "The version number supported.";
            reference
              "12.10.1.3 of IEEE Std 802.1Q-2018";
          }
          leaf max-vids {
            type uint16;
            config false;
            description
              "The maximum number of VIDs supported.";
            reference
              "12.10.1.3 of IEEE Std 802.1Q-2018";
          }
          leaf override-default-pvid {
            type boolean;
            default "false";
            config false;
            description
              "Indicates if the default PVID can be overridden, and
               its egress status (VLAN-tagged or untagged) on each
               port.";
            reference
              "12.10.1.3 of IEEE Std 802.1Q-2018";
          }
          leaf protocol-template {
            if-feature "port-and-protocol-based-vlan";
            type dot1qtypes:protocol-frame-format-type;
            config false;
            description
              "The data-link encapsulation format or the
               detagged_frame_type in a Protocol Template";
            reference
              "12.10.1.7 of IEEE Std 802.1Q-2018";
          }
          leaf max-msti {
            type uint16;
            config false;
            description
              "The maximum number of MSTIs supported within an MST
               region (i.e., the number of spanning tree instances that
               can be supported in addition to the CIST), for MST
               Bridges. For SST Bridges, this parameter may be either
               omitted or reported as 0.";
            reference
              "12.10.1.7 of IEEE Std 802.1Q-2018";
          }
          list vlan {
            key "vid";
            description
              "List of VLAN related configuration nodes associated
               with the Bridge.";
            reference
              "12.10.2 of IEEE Std 802.1Q-2018";
            leaf vid {
              type dot1qtypes:vlan-index-type;
              description
                "The VLAN identifier to which this entry applies.";
              reference
                "12.10.2 of IEEE Std 802.1Q-2018";
            }
            leaf name {
              type dot1qtypes:name-type;
              description
                "A text string of up to 32 characters of locally
                 determined significance.";
              reference
                "12.10.2 of IEEE Std 802.1Q-2018";
            }
            leaf-list untagged-ports {
              type if:interface-ref;
              config false;
              description
                "The set of ports in the untagged set for this VID.";
              reference
                "12.10.2.1.3 of IEEE Std 802.1Q-2018
                 8.8.2 of IEEE Std 802.1Q-2018";
            }
            leaf-list egress-ports {
              type if:interface-ref;
              config false;
              description
                "The set of egress ports in the member set for this
                 VID.";
              reference
                "12.10.2.1.3 of IEEE Std 802.1Q-2018
                 8.8.10 of IEEE Std 802.1Q-2018";
            }
          }
          list protocol-group-database {
            if-feature "port-and-protocol-based-vlan";
            key "db-index";
            description
              "List of the protocol group database entries.";
            reference
              "12.10.1.7 of IEEE Std 802.1Q-2018
               6.12.3 of IEEE Std 802.1Q-2018";
            leaf db-index {
              type uint16;
              description
                "The protocol group database index.";
            }
            leaf frame-format-type {
              type dot1qtypes:protocol-frame-format-type;
              description
                "The data-link encapsulation format or the
                 detagged_frame_type in a Protocol Template";
              reference
                "12.10.1.7 of IEEE Std 802.1Q-2018";
            }
            choice frame-format {
              description
                "The identification of the protocol above the
                 data-link layer in a Protocol Template. Depending on
                 the frame type, the octet string will have one of the
                 following values: - For ethernet, rfc1042 and
                 snap8021H, this is the 16-bit (2-octet) IEEE 802
                 Clause 9.3 EtherType field. - For snapOther, this is
                 the 40-bit (5-octet) PID. - For llcOther, this is the
                 2-octet IEEE 802.2 Link Service Access Point (LSAP)
                 pair: first octet for Destination Service Access Point
                 (DSAP) and second octet for Source Service Access
                 Point (SSAP).";
              reference
                "12.10.1.7 of IEEE Std 802.1Q-2018";
              case ethernet-rfc1042-snap8021H {
                when "frame-format-type = 'Ethernet' or frame-format-type = 'rfc1042' or frame-format-type = 'snap8021H'" {
                  description
                    "Applies to Ethernet, RFC 1042, SNAP 8021H frame
                     formats.";
                }
                description
                  "Identifier used if Ethenet, RFC1042, or SNAP 8021H.";
                leaf ethertype {
                  type dot1qtypes:ethertype-type;
                  description
                    "Format containing the 16-bit IEEE 802 EtherType
                     field.";
                  reference
                    "9.3 of IEEE Std 802-2014";
                }
              }
              case snap-other {
                when "frame-format-type = 'snapOther'" {
                  description
                    "Applies to Snap Other frame formats.";
                }
                description
                  "Identifier used if SNAP other.";
                leaf protocol-id {
                  type string {
                    pattern "[0-9a-fA-F]{2}(-[0-9a-fA-F]{2}){4}";
                  }
                  description
                    "Format containing the 40-bit protocol identifier
                     (PID). The canonical representation uses uppercase
                     characters.";
                  reference
                    "12.10.1.7.1 of IEEE Std 802.1Q-2018";
                }
              }
              case llc-other {
                when "frame-format-type = 'llcOther'" {
                  description
                    "Applies to LLC Other frame formats";
                }
                description
                  "Identifier used if LLC other.";
                container dsap-ssap-pairs {
                  description
                    "A pair of ISO/IEC 8802-2 DSAP and SSAP address
                     field values, for matching frame formats of
                     LLC_Other.";
                  leaf llc-address {
                    type string {
                      pattern "[0-9a-fA-F]{2}-[0-9a-fA-F]{2}";
                    }
                    description
                      "A pair of ISO/IEC 8802-2 DSAP and SSAP address
                       field values, for matching frame formats of
                       LLC_Other. The canonical representation uses
                       uppercase characters.";
                    reference
                      "12.10.1.7.1 of IEEE Std 802.1Q-2018";
                  }
                }
              }
            }
            leaf group-id {
              type uint32;
              description
                "Designates a group of protocols in the Protocol Group
                 Database.";
              reference
                "6.12.2 of IEEE Std 802.1Q-2018";
            }
          }
          list vid-to-fid-allocation {
            key "vids";
            description
              "This list allows inquiries about VID to FID
               allocations.";
            leaf vids {
              type dot1qtypes:vid-range-type;
              description
                "Range of VLAN identifiers.";
              reference
                "12.10.3 of IEEE Std 802.1Q-2018";
            }
            leaf fid {
              type uint32;
              config false;
              description
                "The Filtering Database used by a set of VIDs.";
              reference
                "12.10.3 of IEEE Std 802.1Q-2018";
            }
            leaf allocation-type {
              type enumeration {
                enum "undefined" {
                  description
                    "No allocation defined.";
                }
                enum "fixed" {
                  description
                    "A fixed allocation to FID is defined.";
                }
                enum "dynamic" {
                  description
                    "A dynamic allocation to FID is defined.";
                }
              }
              config false;
              description
                "The type of allocation used";
              reference
                "12.10.3 of IEEE Std 802.1Q-2018";
            }
          }
          list fid-to-vid-allocation {
            key "fid";
            description
              "The FID to VID allocations managed object models
               operations that inquire about FID to VID allocations.";
            leaf fid {
              type uint32;
              description
                "The Filtering Database used by a set of VIDs.";
              reference
                "12.10.3 of IEEE Std 802.1Q-2018";
            }
            leaf allocation-type {
              type enumeration {
                enum "undefined" {
                  description
                    "No allocation defined.";
                }
                enum "fixed" {
                  description
                    "A fixed allocation to FID is defined.";
                }
                enum "dynamic" {
                  description
                    "A dynamic allocation to FID is defined.";
                }
              }
              config false;
              description
                "The type of allocation used";
              reference
                "12.10.3 of IEEE Std 802.1Q-2018";
            }
            leaf-list vid {
              type dot1qtypes:vlan-index-type;
              config false;
              description
                "The VLAN identifier to which this entry applies.";
              reference
                "12.7.7 of IEEE Std 802.1Q-2018";
            }
          }
          list vid-to-fid {
            key "vid";
            description
              "Fixed allocation of a VID to an FID. The underlying
               system will ensure that subsequent commands that make
               changes to the VID to FID mapping can override previous
               associations.";
            reference
              "12.10.3.4 of IEEE Std 802.1Q-2018
               12.10.3.5 of IEEE Std 802.1Q-2018";
            leaf vid {
              type dot1qtypes:vlan-index-type;
              description
                "A list of VLAN identifier associated with a given
                 database identifier (i.e., FID).";
              reference
                "12.7.7 of IEEE Std 802.1Q-2018";
            }
            leaf fid {
              type uint32;
              description
                "The Filtering Database used by this VLAN";
              reference
                "12.10.3 of IEEE Std 802.1Q-2018";
            }
          }
        }
        container bridge-mst {
          when "../../bridge-type != 'dot1q:two-port-mac-relay-bridge'" {
            description
              "Applies to non TPMRs.";
          }
          description
            "The Bridge MST container models configuration information
             that modify, or inquire about, the overall configuration
             of the Bridges MST resources.";
          reference
            "12.12 of IEEE Std 802.1Q-2018";
          leaf-list mstid {
            type dot1qtypes:mstid-type;
            description
              "The list of MSTID values that are currently supported
               by the Bridge";
          }
          list fid-to-mstid {
            key "fid";
            description
              "The FID to MSTID allocation table.";
            reference
              "12.12.2 of IEEE Std 802.1Q-2018";
            leaf fid {
              type uint32;
              description
                "The Filtering Database identifier.";
              reference
                "12.12.2 of IEEE Std 802.1Q-2018";
            }
            leaf mstid {
              type dot1qtypes:mstid-type;
              description
                "The MSTID to which the FID is to be allocated.";
              reference
                "12.12.2 of IEEE Std 802.1Q-2018";
            }
          }
          list fid-to-mstid-allocation {
            key "fids";
            description
              "The FID to MSTID allocation table";
            leaf fids {
              type dot1qtypes:vid-range-type;
              description
                "Range of FIDs.";
              reference
                "12.12.2 of IEEE Std 802.1Q-2018";
            }
            leaf mstid {
              type dot1qtypes:mstid-type;
              description
                "The MSTID to which the FID is allocated.";
              reference
                "12.12.2 of IEEE Std 802.1Q-2018";
            }
          }
        }
      }
    }
  }

  augment "/if:interfaces/if:interface" {
    when "if:type = 'ianaif:bridge' or if:type ='ianaif:ethernetCsmacd' or if:type = 'ianaif:ieee8023adLag'or if:type = 'ianaif:ilan'" {
      description
        "Applies when a Bridge interface.";
    }
    description
      "Augment the interface model with the Bridge Port";
    container bridge-port {
      description
        "Bridge Port is an extension of the IETF Interfaces model
         (RFC7223).";
      leaf bridge-name {
        type leafref {
          path "/dot1q:bridges/dot1q:bridge/dot1q:name";
        }
        description
          "Used to reference configured Bridge node.";
      }
      leaf component-name {
        type leafref {
          path "/dot1q:bridges/dot1q:bridge[dot1q:name=current()/../bridge-name]/dot1q:component/dot1q:name";
        }
        description
          "Used to reference configured Component node.";
      }
      leaf port-type {
        type identityref {
          base type-of-port;
        }
        description
          "The port type. Indicates the capabilities of this port.";
        reference
          "12.4.2.1 of IEEE Std 802.1Q-2018";
      }
      leaf pvid {
        when "/dot1q:bridges/dot1q:bridge[dot1q:name=current()/../dot1q:bridge-name]/dot1q:component[name=current()/../dot1q:component-name]/dot1q:type != 'dot1q:d-bridge-component'" {
          description
            "Applies to non TPMRs";
        }
        type dot1qtypes:vlan-index-type;
        default "1";
        description
          "The primary (default) VID assigned to a specific Bridge
           Port.";
        reference
          "12.10.1 of IEEE Std 802.1Q-2018
           5.4, item m) of IEEE Std 802.1Q-2018";
      }
      leaf default-priority {
        type dot1qtypes:priority-type;
        default "0";
        description
          "The default priority assigned to a specific Bridge Port.";
        reference
          "12.6.2 of IEEE Std 802.1Q-2018";
      }
      container priority-regeneration {
        description
          "The Priority Regeneration Table parameters associated with
           a specific Bridge Port. A list of Regenerated User
           Priorities for each received priority on each port of a
           Bridge. The regenerated priority value may be used to index
           the Traffic Class Table for each input port. This only has
           effect on media that support native priority. The default
           values for Regenerated User Priorities are the same as the
           User Priorities";
        reference
          "12.6.2 of IEEE Std 802.1Q-2018
           6.9.4 of IEEE Std 802.1Q-2018";
        uses dot1qtypes:priority-regeneration-table-grouping;
      }
      leaf pcp-selection {
        type dot1qtypes:pcp-selection-type;
        default "8P0D";
        description
          "The Priority Code Point selection assigned to a specific
           Bridge Port. This object identifies the rows in the PCP
           encoding and decoding tables that are used to remark frames
           on this port if this remarking is enabled";
        reference
          "12.6.2 of IEEE Std 802.1Q-2018
           6.9.3 of IEEE Std 802.1Q-2018";
      }
      container pcp-decoding-table {
        description
          "The Priority Code Point Decoding Table parameters
           associated with a specific Bridge Port.";
        uses dot1qtypes:pcp-decoding-table-grouping;
      }
      container pcp-encoding-table {
        description
          "The Priority Code Point Encoding Table parameters
           associated with a specific Bridge Port.";
        uses dot1qtypes:pcp-encoding-table-grouping;
      }
      leaf use-dei {
        type boolean;
        default "false";
        description
          "The Drop Eligible Indicator. If it is set to True, then the
           drop_eligible parameter is encoded in the DEI of transmitted
           frames, and the drop_eligible parameter shall be true(1) for
           a received frame if the DEI is set in the VLAN tag or the
           Priority Code Point Decoding Table indicates drop_eligible
           True for the received PCP value. If this parameter is False,
           the DEI shall be transmitted as zero and ignored on receipt.";
        reference
          "12.6.2 of IEEE Std 802.1Q-2018
           6.9.3 of IEEE Std 802.1Q-2018";
      }
      leaf drop-encoding {
        type boolean;
        default "false";
        description
          "The Drop Encoding parameter. If a Bridge supports encoding
           or decoding of drop_eligible from the PCP field of a VLAN
           tag (6.7.3) on any of its Ports, then it shall implement a
           Boolean parameter Require Drop Encoding on each of its Ports
           with default value False. If Require Drop Encoding is True
           and the Bridge Port cannot encode particular priorities with
           drop_eligible, then frames queued with those priorities and
           drop_eligible True shall be discarded and not transmitted.";
        reference
          "12.6.2 of IEEE Std 802.1Q-2018
           8.6.6 of IEEE Std 802.1Q-2018";
      }
      leaf service-access-priority-selection {
        type boolean;
        default "false";
        description
          "The Service Access Priority selection. Indication of
           whether the Service Access Priority Selection function is
           supported on the Customer Bridge Port to request priority
           handling of the frame from a Port-based service interface.";
        reference
          "12.6.2 of IEEE Std 802.1Q-2018
           6.13 of IEEE Std 802.1Q-2018";
      }
      container service-access-priority {
        description
          "The Service Access Priority table parameters. A table that
           contains information about the Service Access Priority
           Selection function for a Provider Bridge. The use of this
           table enables a mechanism for a Customer Bridge attached to
           a Provider Bridged Network to request priority handling of
           frames.";
        reference
          "12.6.2 of IEEE Std 802.1Q-2018
           6.13.1 of IEEE Std 802.1Q-2018";
        uses dot1qtypes:service-access-priority-table-grouping;
      }
      container traffic-class-v2 {
        description
          "The Traffic Class Table models the operations that can be
           performed on, or inquire about, the current contents of the
           Traffic Class Table for a given Port. The default values
           for the table are specified in IEEE Std 802.1Q-2018
           8.6.6 or 34.5.";
        reference
          "12.6.3 of IEEE Std 802.1Q-2018";
        uses dot1qtypes:traffic-class-table-grouping-v2;
      }
      leaf acceptable-frame {
        when "/dot1q:bridges/dot1q:bridge[dot1q:name=current()/../dot1q:bridge-name]/dot1q:component[name=current()/../dot1q:component-name]/dot1q:type != 'dot1q:d-bridge-component'" {
          description
            "Applies to non TPMRs";
        }
        type enumeration {
          enum "admit-only-VLAN-tagged-frames" {
            description
              "Admit only VLAN-tagged frames.";
          }
          enum "admit-only-untagged-and-priority-tagged" {
            description
              "Admit only untagged and priority-tagged frames.";
          }
          enum "admit-all-frames" {
            description
              "Admit all frames.";
          }
        }
        default "admit-all-frames";
        description
          "To configure the Acceptable Frame Types parameter
           associated with one or more Ports";
        reference
          "12.10.1.3 of IEEE Std 802.1Q-2018
           6.9 of IEEE Std 802.1Q-2018";
      }
      leaf enable-ingress-filtering {
        when "/dot1q:bridges/dot1q:bridge[dot1q:name=current()/../dot1q:bridge-name]/dot1q:component[name=current()/../dot1q:component-name]/dot1q:type != 'dot1q:d-bridge-component'" {
          description
            "Applies to non TPMRs";
        }
        type boolean;
        default "false";
        description
          "To enable the Ingress Filtering feature associated with one
           or more Ports.";
        reference
          "12.10.1.4 of IEEE Std 802.1Q-2018
           8.6.2 of IEEE Std 802.1Q-2018";
      }
      leaf enable-restricted-vlan-registration {
        when "/dot1q:bridges/dot1q:bridge[dot1q:name=current()/../dot1q:bridge-name]/dot1q:component[name=current()/../dot1q:component-name]/dot1q:type != 'dot1q:d-bridge-component'" {
          description
            "Applies to non TPMRs";
        }
        type boolean;
        default "false";
        description
          "To enable the Restricted VLAN Registration associated with
           one or more Ports.";
        reference
          "11.2.3.2.3 of IEEE Std 802.1Q-2018
           12.10.1.6 of IEEE Std 802.1Q-2018";
      }
      leaf enable-vid-translation-table {
        when "/dot1q:bridges/dot1q:bridge[dot1q:name=current()/../dot1q:bridge-name]/dot1q:component[name=current()/../dot1q:component-name]/dot1q:type != 'dot1q:d-bridge-component'" {
          description
            "Applies to non TPMRs";
        }
        type boolean;
        default "false";
        description
          "To enable VID Translation table associated with a Bridge
           Port. This is not applicable to Bridge Ports that do no
           support a VID Translation Table.";
        reference
          "12.10.1.8 of IEEE Std 802.1Q-2018
           6.9 of IEEE Std 802.1Q-2018";
      }
      leaf enable-egress-vid-translation-table {
        when "/dot1q:bridges/dot1q:bridge[dot1q:name=current()/../dot1q:bridge-name]/dot1q:component[name=current()/../dot1q:component-name]/dot1q:type != 'dot1q:d-bridge-component'" {
          description
            "Applies to non TPMRs";
        }
        type boolean;
        default "false";
        description
          "To enable Egress VID Translation table associated with a
           Bridge Port. This is not applicable to Ports that do not
           support an Egress VID Translation table.";
        reference
          "12.10.1.9 of IEEE Std 802.1Q-2018
           6.9 of IEEE Std 802.1Q-2018";
      }
      list protocol-group-vid-set {
        when "/dot1q:bridges/dot1q:bridge[dot1q:name=current()/../dot1q:bridge-name]/dot1q:component[name=current()/../dot1q:component-name]/dot1q:type != 'dot1q:d-bridge-component'" {
          description
            "Applies to non TPMRs";
        }
        if-feature "port-and-protocol-based-vlan";
        key "group-id";
        description
          "The list of VID values associated with the Protocol Group
           Identifier for this port.";
        reference
          "12.10.1.1.3 of IEEE Std 802.1Q-2018";
        leaf group-id {
          type uint32;
          description
            "The protocol group identifier";
          reference
            "12.10.1.7 of IEEE Std 802.1Q-2018";
        }
        leaf-list vid {
          type dot1qtypes:vlanid;
          description
            "The VLAN identifier to which this entry applies.";
          reference
            "12.10.2 of IEEE Std 802.1Q-2018";
        }
      }
      leaf admin-point-to-point {
        type enumeration {
          enum "force-true" {
            value 1;
            description
              "Indicates that this port should always be treated as if
               it is connected to a point-to-point link.";
          }
          enum "force-false" {
            value 2;
            description
              "Indicates that this port should be treated as having a
               shared media connection.";
          }
          enum "auto" {
            value 3;
            description
              "Indicates that this port is considered to have a
               point-to-point link if it is an Aggregator and all of
               its members are aggregatable, or if the MAC entity is
               configured for full duplex operation, either through
               auto-negotiation or by management means.";
          }
        }
        description
          "For a port running spanning tree, this object represents
           the administrative point-to-point status of the LAN segment
           attached to this port, using the enumeration values of IEEE
           Std 802.1AC. A value of forceTrue(1) indicates that this
           port should always be treated as if it is connected to a
           point-to-point link. A value of forceFalse(2) indicates that
           this port should be treated as having a shared media
           connection. A value of auto(3) indicates that this port is
           considered to have a point-to-point link if it is an
           Aggregator and all of its members are aggregatable, or if
           the MAC entity is configured for full duplex operation,
           either through auto-negotiation or by management means.
           Manipulating this object changes the underlying
           adminPointToPointMAC.";
        reference
          "12.4.2 of IEEE Std 802.1Q-2018
           6.8.2 of IEEE Std 802.1Q-2018";
      }
      leaf protocol-based-vlan-classification {
        when "/dot1q:bridges/dot1q:bridge[dot1q:name=current()/../dot1q:bridge-name]/dot1q:component[name=current()/../dot1q:component-name]/dot1q:type != 'dot1q:d-bridge-component'" {
          description
            "Applies to non TPMRs";
        }
        if-feature "port-and-protocol-based-vlan";
        type boolean;
        config false;
        description
          "A boolean indication indicating if Port-and-Protocol-based
           VLAN classification is supported on a given Port.";
        reference
          "5.4.1.2 of IEEE Std 802.1Q-2018";
      }
      leaf max-vid-set-entries {
        when "/dot1q:bridges/dot1q:bridge[dot1q:name=current()/../dot1q:bridge-name]/dot1q:component[name=current()/../dot1q:component-name]/dot1q:type != 'dot1q:d-bridge-component'" {
          description
            "Applies to non TPMRs";
        }
        if-feature "port-and-protocol-based-vlan";
        type uint16;
        config false;
        description
          "The maximum number of entries supported in the VID set on a
           given Port.";
        reference
          "12.10.1.1.3 of IEEE Std 802.1Q-2018";
      }
      leaf port-number {
        type dot1qtypes:port-number-type;
        config false;
        description
          "An integer that uniquely identifies a Bridge Port.";
        reference
          "12.3, item i) of IEEE Std 802.1Q-2018
           17.3.2.2 of IEEE Std 802.1Q-2018";
      }
      leaf address {
        type ieee:mac-address;
        config false;
        description
          "The specific MAC address of the individual MAC Entity
           associated with the Port.";
        reference
          "12.4.2 of IEEE Std 802.1Q-2018
           12.4.2.1.1.3, item a) of IEEE Std 802.1Q-2018";
      }
      leaf capabilities {
        type bits {
          bit tagging {
            position 0;
            description
              "Supports 802.1Q VLAN tagging of frames and MVRP.";
          }
          bit configurable-acceptable-frame-type {
            position 1;
            description
              "Allows modified values of acceptable frame types";
          }
          bit ingress-filtering {
            position 2;
            description
              "Supports the discarding of any frame received on a Port
               whose VLAN classification does not include that Port in
               its member set.";
          }
        }
        config false;
        description
          "The feature capabilities associated with port. Indicates
           the parts of IEEE 802.1Q that are optional on a per-port
           basis, that are implemented by this device, and that are
           manageable.";
        reference
          "12.10.1.1.3, item c) of IEEE Std 802.1Q-2018
           12.4.2 of IEEE Std 802.1Q-2018";
      }
      leaf type-capabilties {
        type bits {
          bit customer-vlan-port {
            position 0;
            description
              "Indicates the port can be a C-TAG aware port of an
               enterprise VLAN aware Bridge";
          }
          bit provider-network-port {
            position 1;
            description
              "Indicates the port can be an S-TAG aware port of a
               Provider Bridge or Backbone Edge Bridge used for
               connections within a PBN or PBBN.";
          }
          bit customer-network-port {
            position 2;
            description
              "Indicates the port can be an S-TAG aware port of a
               Provider Bridge or Backbone Edge Bridge used for
               connections to the exterior of a PBN or PBBN.";
          }
          bit customer-edge-port {
            position 3;
            description
              "Indicates the port can be a C-TAG aware port of a
               Provider Bridge used for connections to the exterior of
               a PBN or PBBN.";
          }
          bit customer-backbone-port {
            position 4;
            description
              "Indicates the port can be a I-TAG aware port of a
               Backbone Edge Bridge's B-component.";
          }
          bit virtual-instance-port {
            position 5;
            description
              "Indicates the port can be a virtual S-TAG aware port
               within a Backbone Edge Bridge's I-component which is
               responsible for handling S-tagged traffic for a specific
               backbone service instance.";
          }
          bit d-bridge-port {
            position 6;
            description
              "Indicates the port can be a VLAN-unaware member of an
               802.1Q Bridge.";
          }
          bit remote-customer-access-port {
            position 7;
            description
              "Indicates the port can be an S-TAG aware port of a
               Provider Bridge capable of providing Remote Customer
               Service Interfaces.";
          }
          bit station-facing-bridge-port {
            position 8;
            description
              "Indicates the station-facing Bridge Port in a EVB
               Bridge.";
          }
          bit uplink-access-port {
            position 9;
            description
              "Indicates the uplink access port in an EVB Bridge or
               EVB station.";
          }
          bit uplink-relay-port {
            position 10;
            description
              "Indicates the uplink relay port in an EVB station.";
          }
        }
        config false;
        description
          "The type of feature capabilities supported with port.
           Indicates the capabilities of this port.";
        reference
          "12.4.2 of IEEE Std 802.1Q-2018";
      }
      leaf external {
        type boolean;
        config false;
        description
          "A boolean indicating whether the port is external. A value
           of True means the port is external. A value of False means
           the port is internal.";
        reference
          "12.4.2 of IEEE Std 802.1Q-2018";
      }
      leaf oper-point-to-point {
        type boolean;
        config false;
        description
          "For a port running spanning tree, this object represents
           the operational point-to-point status of the LAN segment
           attached to this port. It indicates whether a port is
           considered to have a point-to-point connection.
           
           If admin-point-to-point is set to auto(2), then the value of
           oper-point-to-point is determined in accordance with the
           specific procedures defined for the MAC entity concerned, as
           defined in IEEE Std 802.1AC.
           
           The value is determined dynamically; that is, it is
           re-evaluated whenever the value of admin-point-to-point
           changes, and whenever the specific procedures defined for
           the MAC entity evaluate a change in its point-to-point
           status.";
        reference
          "IEEE Std 802.1AC
           12.4.2 of IEEE Std 802.1Q-2018";
      }
      leaf media-dependent-overhead {
        type uint8;
        units "octets";
        config false;
        description
          "The portMediaDependentOverhead parameter provides the
           number of additional octets for media-dependent framing. The
           overhead includes all octets prior the first octet of the
           Destination Address field and all octets after the last octet
           of the frame check sequence.";
        reference
          "12.4.2 of IEEE Std 802.1Qcr-2020";
      }
      container statistics {
        config false;
        description
          "Container of operational state node information associated
           with the bridge port.";
        uses dot1qtypes:bridge-port-statistics-grouping;
        leaf discard-on-ingress-filtering {
          when "/dot1q:bridges/dot1q:bridge[dot1q:name=current()/../../dot1q:bridge-name]/dot1q:component[name=current()/../../dot1q:component-name]/dot1q:type != 'dot1q:d-bridge-component'" {
            description
              "Applies to non TPMRs";
          }
          if-feature "ingress-filtering";
          type yang:counter64;
          description
            "The number of frames that were discarded as a result of
             Ingress Filtering being enabled.
             
             Discontinuities in the value of this counter can occur at
             re-initialization of the management system, and at other
             times as indicated by the value of 'discontinuity-time'.";
          reference
            "12.6.1.1.3 of IEEE Std 802.1Q-2018";
        }
      }
      list vid-translations {
        when "/dot1q:bridges/dot1q:bridge[dot1q:name=current()/../dot1q:bridge-name]/dot1q:component[name=current()/../dot1q:component-name]/dot1q:type != 'dot1q:d-bridge-component'" {
          description
            "Applies to non TPMRs";
        }
        key "local-vid";
        description
          "To configure the VID Translation Table (6.9) associated
           with a Port. This object is not applicable to Ports that do
           not support a VID Translation Table. The default
           configuration of the table has the value of the Relay VID
           equal to the value of the Local VID. If no local VID is
           configured, then it is assumed that the relay VID is the
           same value as the local VID.
           
           If the port supports an Egress VID translation table, the
           VID Translation Configuration object configures the Local
           VID to Relay VID mapping on ingress only. If an Egress VID
           translation is not supported, the VID Translation
           Configuration object defines a single bidirectional mapping.
           In this case, the Bridge should not allow multiple keys
           ('local-vid') mapped to the same 'relay-vid' value.";
        leaf local-vid {
          type dot1qtypes:vlanid;
          description
            "The Local VID after translation received at the ISS or
             EISS.";
          reference
            "12.10.1.8 of IEEE Std 802.1Q-2018
             6.9 of IEEE Std 802.1Q-2018";
        }
        leaf relay-vid {
          type dot1qtypes:vlanid;
          description
            "The Relay VID received before translation received at ISS
             or EISS.";
          reference
            "12.10.1.8 of IEEE Std 802.1Q-2018
             6.9 of IEEE Std 802.1Q-2018";
        }
      }
      list egress-vid-translations {
        when "/dot1q:bridges/dot1q:bridge[dot1q:name=current()/../dot1q:bridge-name]/dot1q:component[name=current()/../dot1q:component-name]/dot1q:type != 'dot1q:d-bridge-component'" {
          description
            "Applies to non TPMRs";
        }
        key "relay-vid";
        description
          "To configure the Egress VID Translation Table (6.9)
           associated with a Port. This object is not applicable to
           Ports that do not support an Egress VID Translation Table.
           The default configuration of the table has the value of the
           Local VID equal to the value of the Relay VID. If no Relay
           VID is configured, then it is assumed that the local VID is
           the same value as the relay VID.";
        leaf relay-vid {
          type dot1qtypes:vlanid;
          description
            "The Relay VID received before translation received at ISS
             or EISS.";
          reference
            "12.10.1.9 of IEEE Std 802.1Q-2018
             6.9 of IEEE Std 802.1Q-2018";
        }
        leaf local-vid {
          type dot1qtypes:vlanid;
          description
            "The Local VID after translation received at the ISS or
             EISS.";
          reference
            "12.10.1.9 of IEEE Std 802.1Q-2018
             6.9 of IEEE Std 802.1Q-2018";
        }
      }
    }
  }
}