module ciena-mef-pfg-profile {

    yang-version 1;

    namespace
      "urn:ciena:params:xml:ns:yang:ciena-pn::ciena-mef-pfg-profile";

    prefix mef-pfg;

    organization "Ciena Corporation";

    contact
      "Web URL: http://www.ciena.com/
E-mail:  yang@ciena.com
Postal:  7035 Ridge Road
	 Hanover, Maryland 21076
	 U.S.A.
Phone:   +1 800-921-1144
Fax:     +1 410-694-5750";

    description
      "This YANG module defines Ciena's configuration of
the Private Forwarding Group Profile.";

    revision "2017-10-23" {
      description
        "Added missing reference and description for container and list.";
      reference
        "RFC 6020: YANG - A Data Modeling Language for
        the Network Configuration Protocol (NETCONF).
        No specific reference; standard not available.";

    }

    revision "2016-05-19" {
      description "Initial revision.";
      reference
        "RFC 6020: YANG - A Data Modeling Language for
        the Network Configuration Protocol (NETCONF).
        No specific reference; standard not available.";

    }


    typedef pfg-profile-ref {
      type leafref {
        path "/mef-pfg:pfg-profiles/mef-pfg:pfg-profile/mef-pfg:name";
      }
      description
        "This type is used by the data models that need to reference
configured Private Forwarding Group Profiles.";
    }

    typedef PfgType {
      type enumeration {
        enum "pfg-groups" {
          value 0;
          description
            "This pfg-type allows for up to 4 PFG groups with configurable forwarding
policies. Interfaces (e.g. flow points) in the domain (e.g forwarding-domain)
will specify which PFG-group A,B,C or D that they belong to. This is the only
PfgType which allows configuration of forwarding group policies.";
        }
        enum "spoke-and-mesh" {
          value 1;
          description
            "This pfg-type supports spoke and mesh with strict forwarding policy rules
  spoke => can forward to mesh and can forward to spoke.
  mesh => can forward to spoke but cannot forward to mesh.
Interfaces (e.g. flow points) in the domain (e.g forwarding-domain) will
specify which PFG-group Spoke or Mesh that they belong to.";
        }
        enum "leaf-and-root" {
          value 2;
          description
            "This pfg-type supports leaf and root with strict forwarding policy rules
  leaf => can forward to root but cannot forward to leaf.
  root => can forward to leaf and can forward to root.
Interfaces (e.g. flow points) in the domain (e.g forwarding-domain) will
specify which PFG-group Leaf or Root that they belong to.";
        }
        enum "spokemesh-and-leafroot" {
          value 3;
          description
            "This pfg-type supports leaf, root, spoke and mesh with strict forwarding
policy rules
  leaf  => can forward to root, can forward to mesh, can forward to spoke,
	   but cannot forward to leaf.
  root  => can forward to root, can forward to mesh, can forward to spoke,
	   can forward to leaf.
  spoke => can forward to root, can forward to mesh, can forward to mesh,
	   can forward to leaf.
  mesh  => can forward to root, can forward to spoke, can forward to leaf,
	   but cannot forward to mesh.
Interfaces (e.g. flow points) in the domain (e.g forwarding-domain) will
specify which PFG-group Spoke, Mesh, Leaf or Root that they belong to.";
        }
      }
      description
        "This represents different types of PFG Profiles.";
    }

    typedef group-policy {
      type bits {
        bit forward-to-a {
          position 0;
          description
            "can forward to PFG-group A.";
        }
        bit forward-to-b {
          position 1;
          description
            "can forward to PFG-group B.";
        }
        bit forward-to-c {
          position 2;
          description
            "can forward to PFG-group C.";
        }
        bit forward-to-d {
          position 3;
          description
            "can forward to PFG-group D.";
        }
      }
      description
        "When PfgType is pfg-groups the forwarding policies between the groups can be
configured. Each PFG Group A,B,C or D can define the set of PFG-groups that
it can forward to (including itself). If a forward-to-x bit is not set for a
PFG-group, the PFG-group cannot forward to any interface e.g. flow-point) in
that PFG-group. Each interface defines which PFG-group it belongs to.";
    }

    container pfg-profiles {
      description
        "Contains the list of PFG profiles currently present in the system.";
      list pfg-profile {
        key "name";
        description
          "Represents configurational data for corresponding PFG profile.";
        leaf name {
          type string;
          description
            "An administratively assigned string, which may be used
to identify the profile.";
        }

        leaf description {
          type string;
          description
            "This is a user-defined string used to describe the profile.";
        }

        leaf pfg-type {
          type PfgType;
          description
            "The type of PFG-profile which has configurable policies or strict forwarding
policies.";
        }

        leaf pfg-group-count {
          type uint32;
          description
            "When the pfg-type is pfg-groups, this defines the number of PFG groups that
are valid in this profile.
2 => PFG-Groups A and B
3 => PFG-Groups A, B and C
4 => PFG-Groups A,B,C and D.";
        }

        leaf group-A-policy {
          type group-policy;
          description
            "The set of forwarding rules for Group A.";
        }

        leaf group-B-policy {
          type group-policy;
          description
            "The set of forwarding rules for Group B.";
        }

        leaf group-C-policy {
          type group-policy;
          description
            "The set of forwarding rules for Group C.";
        }

        leaf group-D-policy {
          type group-policy;
          description
            "The set of forwarding rules for Group D.";
        }
      }  // list pfg-profile
    }  // container pfg-profiles
  }  // module ciena-mef-pfg-profile