module frr-bgp-types {
  yang-version 1.1;
  namespace "http://frrouting.org/yang/bgp-types";
  prefix frr-bt;

  organization
    "FRRouting";
  contact
    "FRR Users List: <mailto:frog@lists.frrouting.org> FRR Development
     List: <mailto:dev@lists.frrouting.org>";
  description
    "This module contains general data definitions for use in BGP.

     Copyright 2020 FRRouting

     Redistribution and use in source and binary forms, with or without
     modification, are permitted provided that the following conditions
     are met:

     1. Redistributions of source code must retain the above copyright notice,
     this list of conditions and the following disclaimer.

     2. Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in the
     documentation and/or other materials provided with the distribution.

     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     \"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.";

  revision 2019-12-03 {
    description
      "Initial revision.";
  }

  typedef plist-ref {
    type string;
  }

  typedef access-list-ref {
    type string;
  }

  typedef as-path-filter-ref {
    type string;
  }

  typedef bgp-instance-type {
    type enumeration {
      enum "default" {
        value 1;
        description
          "BGP instance default.";
      }
      enum "vrf" {
        value 2;
        description
          "BGP instance vrf.";
      }
      enum "view" {
        value 3;
        description
          "BGP instance view.";
      }
    }
  }

  typedef as-type {
    type enumeration {
      enum "as-specified" {
        value 1;
        description
          "AS has explicitly specified value.";
      }
      enum "internal" {
        value 2;
        description
          "Internal BGP peer.";
      }
      enum "external" {
        value 3;
        description
          "External BGP peer.";
      }
    }
  }

  typedef add-path-type {
    type enumeration {
      enum "all" {
        value 1;
        description
          "To advertise all paths to a neighbor.";
      }
      enum "per-as" {
        value 2;
        description
          "To advertise the best path per each neighboring AS.";
      }
      enum "none" {
        value 3;
        description
          "Add path feature is disabled.";
      }
    }
  }

  typedef bfd-session-type {
    type enumeration {
      enum "single-hop" {
        value 1;
        description
          "Single hop session.";
      }
      enum "multi-hop" {
        value 2;
        description
          "Multiple hop session.";
      }
      enum "not-configured" {
        value 3;
        description
          "Not Configured.";
      }
    }
  }

  typedef direction {
    type enumeration {
      enum "in" {
        value 1;
        description
          "IN, ingress, Rx.";
      }
      enum "out" {
        value 2;
        description
          "OUT, egress, Tx.";
      }
    }
  }
}