submodule openconfig-pf-path-groups {

    yang-version 1;

    belongs-to
      openconfig-policy-forwarding {
        prefix oc-pf;
    }

    import openconfig-extensions {
      prefix oc-ext;
    }

    organization "OpenConfig working group";

    contact
      "OpenConfig working group
    www.openconfig.net";

    description
      "This submodule contains configuration and operational state
    relating to path-selection-groups which are used to group
    forwarding entities together to be used as policy forwarding
    targets.";

    revision "2021-08-06" {
      description
        "Update path to the network instance action to allow references
      to other NIs.";
      reference
        "0.4.0";

    }

    revision "2021-05-19" {
      description
        "Add a VRF selection policy type, and means to apply the
      policy.";
      reference
        "0.3.0";

    }

    revision "2018-11-21" {
      description
        "Add OpenConfig module metadata extensions.";
      reference
        "0.2.1";

    }

    revision "2017-06-21" {
      description
        "Amend policy forwarding model based on ACL changes.";
      reference
        "0.2.0";

    }

    revision "2017-02-28" {
      description
        "Initial public release of policy forwarding.";
      reference
        "0.1.0";

    }

    revision "2016-11-08" {
      description "Initial revision";
      reference
        "0.0.1";

    }

    oc-ext:openconfig-version "0.4.0";

    grouping pf-path-groups-structural {
      description
        "Structural grouping containing the definition of path groups
      within the context of policy-based forwarding.";
      container path-selection-groups {
        description
          "Surrounding container for the path selection groups defined
        within the policy forwarding model.";
        list path-selection-group {
          key "group-id";
          description
            "A path selection group is a set of forwarding resources,
          which are grouped as eligible paths for a particular
          policy-based forwarding rule. A policy rule may select a
          path-selection-group as the egress for a particular type of
          traffic (e.g., DSCP value). The system then utilises its
          standard forwarding lookup mechanism to select from the
          paths that are specified within the group - for IP packets,
          the destination IP address is used such that the packet is
          routed to the entity within the path-selection-group that
          corresponds to the next-hop for the destination IP address
          of the packet; for L2 packets, the selection is based on the
          destination MAC address. If multiple paths within the
          selection group are eligible to be used for forwarding,
          the packets are load-balanced between them according to
          the system's usual load balancing logic.";
          leaf group-id {
            type leafref {
              path "../config/group-id";
            }
            description
              "Reference to a unique identifier for the path selection
            group";
          }

          container config {
            description
              "Configuration parameters relating to the path selection
            group.";
            uses pf-path-selection-group-config;
          }  // container config

          container state {
            config false;
            description
              "Operational state parameters relating to the path
            selection group.";
            uses pf-path-selection-group-config;
          }  // container state
        }  // list path-selection-group
      }  // container path-selection-groups
    }  // grouping pf-path-groups-structural

    grouping pf-path-selection-group-config {
      description
        "Configuration parameters relating to a path selection group.";
      leaf group-id {
        type string;
        description
          "A unique name for the path-selection-group";
      }

      leaf-list mpls-lsp {
        type leafref {
          path
            "../../../../../mpls/lsps/constrained-path/tunnels/"
              + "tunnel/config/name";
        }
        description
          "A set of MPLS constrained-path LSPs which should be
        considered for the policy forwarding next-hop. In order to
        select between the LSPs within the path-selection-group, the
        system should determine which LSP provides the best path to
        the next-hop for the routed packet.";
      }
    }  // grouping pf-path-selection-group-config
  }  // submodule openconfig-pf-path-groups