module frr-routing {
  yang-version "1.1";
  namespace "http://frrouting.org/yang/routing";
  prefix "rt";

  import ietf-yang-types {
    prefix "yang";
  }

  import frr-vrf {
    prefix frr-vrf;
  }

  organization
    "FRRouting";

  contact
    "FRR Users List:       <mailto:frog@lists.frrouting.org>
     FRR Development List: <mailto:dev@lists.frrouting.org>";

  description
    "This YANG module defines essential components for the management
     of a routing subsystem.";

  revision 2019-08-15 {
    description
      "Initial revision.";
  }

  /* Identities */

  identity address-family {
    description
      "Base identity from which identities describing address
       families are derived.";
  }

  identity ipv4 {
    base address-family;
    description
      "This identity represents an IPv4 address family.";
  }

  identity ipv6 {
    base address-family;
    description
      "This identity represents an IPv6 address family.";
  }

  identity control-plane-protocol {
    description
      "Base identity from which control-plane protocol identities are
       derived.";
  }

  identity routing-protocol {
    base control-plane-protocol;
    description
      "Identity from which Layer 3 routing protocol identities are
       derived.";
  }

  /* Type Definitions */

  typedef administrative-distance {
    type uint8 {
      range "1..255";
    }
    description
      "Admin distance associated with the route.";
  }

  /* Groupings */

  grouping address-family {
    description
      "This grouping provides a leaf identifying an address
       family.";
    leaf address-family {
      type identityref {
        base address-family;
      }
      mandatory true;
      description
        "Address family.";
    }
  }

  grouping router-id {
    description
      "This grouping provides a router ID.";
    leaf router-id {
      type yang:dotted-quad;
      description
        "A 32-bit number in the form of a dotted quad that is used by
         some routing protocols identifying a router.";
      reference
        "RFC 2328: OSPF Version 2";
    }
  }

  /* Data nodes */

  container routing {
    description
      "Configuration parameters for the routing subsystem.";
    container control-plane-protocols {
      description
        "Support for control-plane protocol instances.";
      list control-plane-protocol {
        key "type name vrf";
        description
          "Each entry contains a control-plane protocol instance.";
        leaf type {
          type identityref {
            base control-plane-protocol;
          }
          description
            "Type of the control-plane protocol";
        }
        leaf name {
          type string;
          description
            "An arbitrary name of the control-plane protocol
             instance.";
        }
        leaf vrf {
          type frr-vrf:vrf-ref;
          description
            "vrf for control-plane protocol";
        }
      }
    }
  }
}