module ieee802-dot1q-bridge {

    yang-version 1.1;

    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.

Copyright (C) IEEE (2023).

This version of this YANG module is part of IEEE Std 802.1Q; see the
standard itself for full legal notices.";

    revision "2023-10-26" {
      description
        "Published as part of IEEE Std 802.1Qcw-2023.

The following reference statement identifies each referenced IEEE
Standard as updated by applicable amendments.";
      reference
        "IEEE Std 802.1Q Bridges and Bridged Networks:
        IEEE Std 802.1Q-2022, IEEE Std 802.1Qcz-2023, IEEE Std 802.1Qcw-2023.
        IEEE Std 802 Overview and Architecture:
        IEEE Std 802-2014.
        IEEE Std 802.1AC Media Access Control (MAC) Service Definition:
        IEEE Std 802.1AC-2016, IEEE Std 802.1AC-2016-Cor1-2018.";

    }

    revision "2022-10-29" {
      description
        "Published as part of IEEE Std 802.1Q-2022.";
      reference
        "IEEE Std 802.1Q-2022, Bridges and Bridged Networks.";

    }

    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";

    }

    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 Port's 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, Clause 10 of IEEE Std 802.1Q";

    }

    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";

    }

    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";

    }

    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 provides an interface that is distinct from
the interface provided by 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";

        }

        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";

        }

        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";

        }

        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";

        }

        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
            "12.4.1.5 of IEEE Std 802.1Q";

          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
              "Item l) in 12.3 of IEEE Std 802.1Q";

          }

          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
              "Item m) in 12.3 of IEEE Std 802.1Q";

          }

          leaf address {
            type ieee:mac-address;
            description
              "Unique EUI-48 Universally Administered MAC address assigned to
a Bridge component.";
            reference
              "8.13.8 of IEEE Std 802.1Q";

          }

          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
              "Item b) in 12.4.1.5.2 of IEEE Std 802.1Q";

          }

          leaf ports {
            type uint16 {
              range "1..4095";
            }
            config false;
            description
              "The number of Bridge Ports associated with the Bridge
Component.";
            reference
              "Item c) in 12.4.1.1.3 of IEEE Std 802.1Q";

          }

          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
              "Item b) in 12.10.1.1.3, 12.4.1.5.2 of IEEE Std 802.1Q";

            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";

            }

            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";

            }

            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";

            }

            leaf ivl-capable {
              type boolean;
              default "true";
              description
                "Independent VLAN Learning (IVL).";
              reference
                "12.4.1.5.2 of IEEE Std 802.1Q";

            }

            leaf svl-capable {
              type boolean;
              default "false";
              description
                "Shared VLAN Learning (SVL).";
              reference
                "12.4.1.5.2 of IEEE Std 802.1Q";

            }

            leaf hybrid-capable {
              type boolean;
              default "false";
              description
                "Both IVL and SVL simultaneously.";
              reference
                "12.4.1.5.2 of IEEE Std 802.1Q";

            }

            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";

            }

            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";

            }
          }  // container capabilities

          container filtering-database {
            when
              "not(derived-from-or-self(../../bridge-type, '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";

            leaf aging-time {
              type uint32 {
                range "10..1000000";
              }
              units "seconds";
              default "300";
              description
                "The timeout period in seconds for aging out
dynamically-learned forwarding information.";
              reference
                "12.7, 8.8.3 of IEEE Std 802.1Q";

            }

            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";

            }

            leaf static-entries {
              type yang:gauge32;
              config false;
              description
                "The number of Static Filtering entries currently in the FDB.";
              reference
                "12.7, 8.8.1 of IEEE Std 802.1Q";

            }

            leaf dynamic-entries {
              type yang:gauge32;
              config false;
              description
                "The number of Dynamic Filtering entries currently in the FDB.";
              reference
                "12.7, 8.8.3 of IEEE Std 802.1Q";

            }

            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, 8.8.2 of IEEE Std 802.1Q";

            }

            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, 8.8.5 of IEEE Std 802.1Q";

            }

            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, 8.8.4 of IEEE Std 802.1Q";

            }

            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";

              }

              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";

              }

              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";

              }

              leaf entry-type {
                type enumeration {
                  enum "static" {
                    value 0;
                    description
                      "Static entry type";
                  }
                  enum "dynamic" {
                    value 1;
                    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";

              }

              uses dot1qtypes:port-map-grouping;

              leaf status {
                type enumeration {
                  enum "other" {
                    value 0;
                    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" {
                    value 1;
                    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" {
                    value 2;
                    description
                      "The value of the corresponding instance of the port
node was learned and is being used.";
                  }
                  enum "self" {
                    value 3;
                    description
                      "The value of the corresponding instance of the address
node representing one of the devices address.";
                  }
                  enum "mgmt" {
                    value 4;
                    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 filtering-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";

              leaf database-id {
                type uint32;
                description
                  "The identity of this Filtering Database.";
                reference
                  "12.7.7 of IEEE Std 802.1Q";

              }

              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";

              }

              leaf entry-type {
                type enumeration {
                  enum "static" {
                    value 0;
                    description
                      "Static entry type";
                  }
                  enum "dynamic" {
                    value 1;
                    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";

              }

              uses dot1qtypes:port-map-grouping;
            }  // list vlan-registration-entry
          }  // container filtering-database

          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";

            }

            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";

            }

            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";

            }

            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";

              }

              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";

              }

              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";

              }

              leaf status {
                type enumeration {
                  enum "other" {
                    value 0;
                    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" {
                    value 1;
                    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" {
                    value 2;
                    description
                      "The value of the corresponding instance of the port
node was learned and is being used.";
                  }
                  enum "self" {
                    value 3;
                    description
                      "The value of the corresponding instance of the address
node representing one of the devices address.";
                  }
                  enum "mgmt" {
                    value 4;
                    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;
            }  // list filtering-entry
          }  // container permanent-database

          container bridge-vlan {
            when
              "not(derived-from-or-self(../../bridge-type, 'two-port-mac-relay-bridge'))" {
              description
                "Applies to non TPMRs.";
            }
            description
              "The Bridge VLAN container models configuration information that
modifies, or inquires about, the overall configuration of the
Bridge's VLAN resources. There is a single Bridge VLAN
Configuration managed object per Bridge.";
            reference
              "12.10 of IEEE Std 802.1Q";

            leaf version {
              type uint16;
              config false;
              description
                "The version number supported.";
              reference
                "Item a) of 12.10.1.1.3 of IEEE Std 802.1Q";

            }

            leaf max-vids {
              type uint16;
              config false;
              description
                "The maximum number of VIDs supported.";
              reference
                "Item b)1) of 12.10.1.1.3 of IEEE Std 802.1Q";

            }

            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
                "Item b)2) of 12.10.1.1.3 of IEEE Std 802.1Q";

            }

            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";

            }

            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
                "Item b)4) of 12.10.1.1.3 of IEEE Std 802.1Q";

            }

            list vlan {
              key "vid";
              description
                "List of VLAN related configuration nodes associated with the
Bridge.";
              reference
                "12.10.2 of IEEE Std 802.1Q";

              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";

              }

              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";

              }

              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, 8.8.2 of IEEE Std 802.1Q";

              }

              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, 8.8.10 of IEEE Std 802.1Q";

              }
            }  // list vlan

            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, 6.12.3 of IEEE Std 802.1Q";

              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";

              }

              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) 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";

                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
                      "9.2 of IEEE Std 802";

                  }
                }  // case ethernet-rfc1042-snap8021H

                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";

                  }
                }  // case snap-other

                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";

                    }
                  }  // container dsap-ssap-pairs
                }  // case llc-other
              }  // choice frame-format

              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";

              }
            }  // list protocol-group-database

            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";

              }

              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";

              }

              leaf allocation-type {
                type enumeration {
                  enum "undefined" {
                    value 0;
                    description
                      "No allocation defined.";
                  }
                  enum "fixed" {
                    value 1;
                    description
                      "A fixed allocation to FID is defined.";
                  }
                  enum "dynamic" {
                    value 2;
                    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";

              }
            }  // list vid-to-fid-allocation

            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";

              }

              leaf allocation-type {
                type enumeration {
                  enum "undefined" {
                    value 0;
                    description
                      "No allocation defined.";
                  }
                  enum "fixed" {
                    value 1;
                    description
                      "A fixed allocation to FID is defined.";
                  }
                  enum "dynamic" {
                    value 2;
                    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";

              }

              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";

              }
            }  // list fid-to-vid-allocation

            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, 12.10.3.5 of IEEE Std 802.1Q";

              leaf vid {
                type dot1qtypes:vlan-index-type;
                description
                  "A list of VIDs associated with a given database identifier
(i.e., FID).";
                reference
                  "12.7.7 of IEEE Std 802.1Q";

              }

              leaf fid {
                type uint32;
                description
                  "The Filtering Database used by this VLAN";
                reference
                  "12.10.3 of IEEE Std 802.1Q";

              }
            }  // list vid-to-fid
          }  // container bridge-vlan

          container bridge-mst {
            when
              "not(derived-from-or-self(../../bridge-type, 'two-port-mac-relay-bridge'))" {
              description
                "Applies to non TPMRs.";
            }
            description
              "The Bridge MST container models configuration information that
modifies, or inquires about, the overall configuration of the
Bridges MST resources.";
            reference
              "12.12 of IEEE Std 802.1Q";

            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";

              leaf fid {
                type uint32;
                description
                  "The Filtering Database identifier.";
                reference
                  "12.12.2 of IEEE Std 802.1Q";

              }

              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";

              }
            }  // list fid-to-mstid

            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";

              }

              leaf mstid {
                type dot1qtypes:mstid-type;
                description
                  "The MSTID to which the FID is allocated.";
                reference
                  "12.12.2 of IEEE Std 802.1Q";

              }
            }  // list fid-to-mstid-allocation
          }  // container bridge-mst
        }  // list component
      }  // list bridge
    }  // container bridges

    augment /if:interfaces/if:interface {
      when
        "derived-from-or-self(if:type,'ianaif:bridge') or derived-from-or-self(if:type,'ianaif:ethernetCsmacd') or derived-from-or-self(if:type,'ianaif:ieee8023adLag') or derived-from-or-self(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";

        }

        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, 5.4, item m) of IEEE Std 802.1Q";

        }

        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";

        }

        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, 6.9.4 of IEEE Std 802.1Q";

          uses dot1qtypes:priority-regeneration-table-grouping;
        }  // container priority-regeneration

        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, 6.9.3 of IEEE Std 802.1Q";

        }

        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-decoding-table

        container pcp-encoding-table {
          description
            "The Priority Code Point Encoding Table parameters associated with
a specific Bridge Port.";
          uses dot1qtypes:pcp-encoding-table-grouping;
        }  // container pcp-encoding-table

        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, 6.9.3 of IEEE Std 802.1Q";

        }

        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 (6.9.3)
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, 6.9.3 of IEEE Std 802.1Q";

        }

        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, 6.13 of IEEE Std 802.1Q";

        }

        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, 6.13.1 of IEEE Std 802.1Q";

          uses dot1qtypes:service-access-priority-table-grouping;
        }  // container service-access-priority

        container traffic-class {
          description
            "The Traffic Class table parameters. A table mapping evaluated
priority to Traffic Class, for forwarding by the Bridge";
          reference
            "12.6.3, 8.6.6 of IEEE Std 802.1Q";

          uses dot1qtypes:traffic-class-table-grouping;
        }  // container traffic-class

        container transmission-selection-algorithm-table {
          description
            "The Transmission Selection Algorithm Table for a given Port
assigns, for each traffic class that the Port supports, the
transmission selection algorithm that is to be used to select
frames for transmission from the corresponding queue. Transmission
Selection Algorithm Tables may be managed, and allow the
identification of vendor-specific transmission selection
algorithms. The transmission selection algorithms are identified
in the Transmission Selection Algorithm Table by means of integer
identifiers.";
          reference
            "12.20.2, 8.6.8 of IEEE Std 802.1Q";

          uses dot1qtypes:transmission-selection-table-grouping;
        }  // container transmission-selection-algorithm-table

        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" {
              value 0;
              description
                "Admit only VLAN-tagged frames.";
            }
            enum
              "admit-only-untagged-and-priority-tagged" {
              value 1;
              description
                "Admit only untagged and priority-tagged frames.";
            }
            enum "admit-all-frames" {
              value 2;
              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, 6.9 of IEEE Std 802.1Q";

        }

        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, 8.6.2 of IEEE Std 802.1Q";

        }

        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, 12.10.1.6 of IEEE Std 802.1Q";

        }

        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, 6.9 of IEEE Std 802.1Q";

        }

        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
            "12.10.1.8, 6.9 of IEEE Std 802.1Q";

        }

        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";

          leaf group-id {
            type uint32;
            description
              "The protocol group identifier";
            reference
              "12.10.1.7 of IEEE Std 802.1Q";

          }

          leaf-list vid {
            type dot1qtypes:vlanid;
            description
              "The VLAN identifier to which this entry applies.";
            reference
              "12.10.2 of IEEE Std 802.1Q";

          }
        }  // list protocol-group-vid-set

        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, 6.8.3 of IEEE Std 802.1Q; 11.3 of IEEE Std 802.1AC";

        }

        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";

        }

        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";

        }

        leaf port-number {
          type dot1qtypes:port-number-type;
          config false;
          description
            "An integer that uniquely identifies a Bridge Port.";
          reference
            "Item i) in 12.3, 17.3.2.2 of IEEE Std 802.1Q";

        }

        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, Item a) in 12.4.1.1.3 of IEEE Std 802.1Q";

        }

        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
            "Item c) in 12.10.1.1.3, 12.4.2 of IEEE Std 802.1Q";

        }

        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";

        }

        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";

        }

        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";

        }

        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 802.1Q";

        }

        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";

          }
        }  // container statistics

        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, 6.9 of IEEE Std 802.1Q";

          }

          leaf relay-vid {
            type dot1qtypes:vlanid;
            description
              "The Relay VID received before translation received at ISS or
EISS.";
            reference
              "12.10.1.8, 6.9 of IEEE Std 802.1Q";

          }
        }  // list vid-translations

        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, 6.9 of IEEE Std 802.1Q";

          }

          leaf local-vid {
            type dot1qtypes:vlanid;
            description
              "The Local VID after translation received at the ISS or EISS.";
            reference
              "12.10.1.9, 6.9 of IEEE Std 802.1Q";

          }
        }  // list egress-vid-translations
      }  // container bridge-port
    }
  }  // module ieee802-dot1q-bridge