module openconfig-mpls-rsvp {

    yang-version 1;

    namespace
      "http://openconfig.net/yang/rsvp";

    prefix oc-rsvp;

    import ietf-inet-types {
      prefix inet;
    }
    import openconfig-mpls-types {
      prefix oc-mplst;
    }
    import ietf-yang-types {
      prefix yang;
    }
    import openconfig-types {
      prefix oc-types;
    }
    import openconfig-extensions {
      prefix oc-ext;
    }
    import openconfig-interfaces {
      prefix oc-if;
    }

    organization "OpenConfig working group";

    contact
      "OpenConfig working group
     netopenconfig@googlegroups.com";

    description
      "Configuration for RSVP-TE signaling, including global protocol
     parameters and LSP-specific configuration for constrained-path
     LSPs";

    revision "2016-12-15" {
      description
        "Add additional MPLS parameters";
      reference
        "2.1.0";

    }

    revision "2016-09-01" {
      description
        "Revisions based on implementation feedback";
      reference
        "2.0.0";

    }

    revision "2016-08-08" {
      description
        "Public release of MPLS models";
      reference
        "1.0.1";

    }

    oc-ext:openconfig-version "2.1.0";

    grouping mpls-rsvp-soft-preemption_config {
      description
        "Configuration for MPLS soft preemption";
      leaf enable {
        type boolean;
        default 'false';
        description
          "Enables soft preemption on a node.";
      }

      leaf soft-preemption-timeout {
        type uint16 {
          range "0..max";
        }
        default '0';
        description
          "Timeout value for soft preemption to revert
         to hard preemption";
        reference
          "RFC5712 MPLS-TE soft preemption";

      }
    }  // grouping mpls-rsvp-soft-preemption_config

    grouping mpls-rsvp-soft-preemption {
      description
        "Top level group for MPLS soft preemption";
      container soft-preemption {
        description
          "Protocol options relating to RSVP
         soft preemption";
        container config {
          description
            "Configuration parameters relating to RSVP
           soft preemption support";
          uses mpls-rsvp-soft-preemption_config;
        }  // container config

        container state {
          config false;
          description
            "State parameters relating to RSVP
           soft preemption support";
          uses mpls-rsvp-soft-preemption_config;
        }  // container state
      }  // container soft-preemption
    }  // grouping mpls-rsvp-soft-preemption

    grouping mpls-rsvp-hellos_config {
      description
        "RSVP protocol options configuration.";
      leaf hello-interval {
        type uint16 {
          range "1000..60000";
        }
        units "milliseconds";
        default '9000';
        description
          "set the interval in ms between RSVP hello
         messages";
        reference
          "RFC 3209: RSVP-TE: Extensions to RSVP for
          LSP Tunnels.
           RFC 5495: Description of the Resource
          Reservation Protocol - Traffic-Engineered
          (RSVP-TE) Graceful Restart Procedures";

      }

      leaf refresh-reduction {
        type boolean;
        default 'true';
        description
          "enables all RSVP refresh reduction message
         bundling, RSVP message ID, reliable message delivery
         and summary refresh";
        reference
          "RFC 2961 RSVP Refresh Overhead Reduction
          Extensions";

      }
    }  // grouping mpls-rsvp-hellos_config

    grouping mpls-rsvp-hellos {
      description
        "Top level grouping for RSVP hellos parameters";
      container hellos {
        description
          "Top level container for RSVP hello parameters";
        container config {
          description
            "Configuration parameters relating to RSVP
           hellos";
          uses mpls-rsvp-hellos_config;
        }  // container config

        container state {
          config false;
          description
            "State information associated with RSVP hellos";
          uses mpls-rsvp-hellos_config;
        }  // container state
      }  // container hellos
    }  // grouping mpls-rsvp-hellos

    grouping mpls-rsvp-subscription_config {
      description
        "RSVP subscription configuration";
      leaf subscription {
        type oc-types:percentage;
        description
          "percentage of the interface bandwidth that
         RSVP can reserve";
      }
    }  // grouping mpls-rsvp-subscription_config

    grouping mpls-rsvp-subscription {
      description
        "Top level group for RSVP subscription options";
      container subscription {
        description
          "Bandwidth percentage reservable by RSVP
         on an interface";
        container config {
          description
            "Configuration parameters relating to RSVP
          subscription options";
          uses mpls-rsvp-subscription_config;
        }  // container config

        container state {
          config false;
          description
            "State parameters relating to RSVP
          subscription options";
          uses mpls-rsvp-subscription_config;
        }  // container state
      }  // container subscription
    }  // grouping mpls-rsvp-subscription

    grouping mpls-rsvp-graceful-restart_config {
      description
        "Configuration parameters relating to RSVP Graceful-Restart";
      leaf enable {
        type boolean;
        default 'false';
        description
          "Enables graceful restart on the node.";
      }

      leaf restart-time {
        type uint32;
        description
          "Graceful restart time (seconds).";
        reference
          "RFC 5495: Description of the Resource
          Reservation Protocol - Traffic-Engineered
          (RSVP-TE) Graceful Restart Procedures";

      }

      leaf recovery-time {
        type uint32;
        description
          "RSVP state recovery time";
      }
    }  // grouping mpls-rsvp-graceful-restart_config

    grouping mpls-rsvp-graceful-restart {
      description
        "Top level group for RSVP graceful-restart
       parameters";
      container graceful-restart {
        description
          "Operational state and configuration parameters relating to
        graceful-restart for RSVP";
        container config {
          description
            "Configuration parameters relating to
           graceful-restart";
          uses mpls-rsvp-graceful-restart_config;
        }  // container config

        container state {
          config false;
          description
            "State information associated with
           RSVP graceful-restart";
          uses mpls-rsvp-graceful-restart_config;
        }  // container state
      }  // container graceful-restart
    }  // grouping mpls-rsvp-graceful-restart

    grouping mpls-rsvp-authentication_config {
      description
        "RSVP authentication parameters container.";
      leaf enable {
        type boolean;
        default 'false';
        description
          "Enables RSVP authentication on the node.";
      }

      leaf authentication-key {
        type string {
          length "1..32";
        }
        description
          "authenticate RSVP signaling
         messages";
        reference
          "RFC 2747: RSVP Cryptographic Authentication";

      }
    }  // grouping mpls-rsvp-authentication_config

    grouping mpls-rsvp-authentication {
      description
        "Top level group for RSVP authentication,
       as per RFC2747";
      container authentication {
        description
          "Configuration and state parameters relating to RSVP
        authentication as per RFC2747";
        container config {
          description
            "Configuration parameters relating
           to authentication";
          uses mpls-rsvp-authentication_config;
        }  // container config

        container state {
          config false;
          description
            "State information associated
           with authentication";
          uses mpls-rsvp-authentication_config;
        }  // container state
      }  // container authentication
    }  // grouping mpls-rsvp-authentication

    grouping mpls-rsvp-protection_config {
      description
        "RSVP facility (link/node) protection configuration";
      leaf link-protection-style-requested {
        type identityref {
          base oc-mplst:PROTECTION_TYPE;
        }
        description
          "Style of mpls frr protection desired:
        link, link-node, or unprotected";
      }

      leaf bypass-optimize-interval {
        type uint16;
        units "seconds";
        description
          "interval between periodic optimization
        of the bypass LSPs";
      }
    }  // grouping mpls-rsvp-protection_config

    grouping mpls-rsvp-link-protection {
      description
        "Top level group for RSVP protection";
      container protection {
        description
          "link-protection (NHOP) related configuration";
        container config {
          description
            "Configuration for link-protection";
          uses mpls-rsvp-protection_config;
        }  // container config

        container state {
          config false;
          description
            "State for link-protection";
          uses mpls-rsvp-protection_config;
        }  // container state
      }  // container protection
    }  // grouping mpls-rsvp-link-protection

    grouping mpls-rsvp-statistics {
      description
        "Top level grouping for RSVP protocol state";
      uses mpls-rsvp-protocol-state;
    }  // grouping mpls-rsvp-statistics

    grouping rsvp-global {
      description
        "Global RSVP protocol configuration";
      container rsvp-te {
        description
          "RSVP-TE global signaling protocol configuration";
        uses mpls-rsvp-session-state;

        container neighbors {
          description
            "Configuration and state for RSVP neighbors connecting
          to the device";
          list neighbor {
            key "address";
            config false;
            description
              "List of RSVP neighbors of the local system";
            leaf address {
              type leafref {
                path "../state/address";
              }
              description
                "Reference to the address of the RSVP neighbor";
            }

            container state {
              config false;
              description
                "Operational state parameters relating to the
              RSVP neighbor";
              uses mpls-rsvp-neighbor-state;
            }  // container state
          }  // list neighbor
        }  // container neighbors

        container global {
          description
            "Platform wide RSVP configuration and state";
          uses mpls-rsvp-graceful-restart;

          uses mpls-rsvp-soft-preemption;

          uses mpls-rsvp-hellos;

          container state {
            config false;
            description
              "Platform wide RSVP state, including counters";
            container counters {
              config false;
              description
                "Platform wide RSVP statistics and counters";
              uses mpls-rsvp-global-protocol-state;

              uses mpls-rsvp-statistics;
            }  // container counters
          }  // container state
        }  // container global

        container interface-attributes {
          description
            "Attributes relating to RSVP-TE enabled interfaces";
          list interface {
            key "interface-id";
            description
              "list of per-interface RSVP configurations";
            leaf interface-id {
              type leafref {
                path
                  "../config/interface-id";
              }
              description
                "reference to the interface-id data";
            }

            container config {
              description
                "Configuration of per-interface RSVP parameters";
              leaf interface-id {
                type oc-if:interface-id;
                description
                  "Identifier for the interface";
              }
            }  // container config

            container state {
              config false;
              description
                "Per-interface RSVP protocol and state information";
              uses mpls-rsvp-interfaces-state;

              container counters {
                config false;
                description
                  "Interface specific RSVP statistics and counters";
                uses mpls-rsvp-protocol-state;
              }  // container counters
            }  // container state

            uses oc-if:interface-ref;

            uses mpls-rsvp-interface-reservations;

            uses mpls-rsvp-hellos;

            uses mpls-rsvp-authentication;

            uses mpls-rsvp-subscription;

            uses mpls-rsvp-link-protection;
          }  // list interface
        }  // container interface-attributes
      }  // container rsvp-te
    }  // grouping rsvp-global

    grouping rsvp-p2p-tunnel-attributes_config {
      description
        "properties of RSPP point-to-point paths";
      leaf source {
        type inet:ip-address;
        description
          "RSVP-TE tunnel source address";
      }

      leaf soft-preemption {
        type boolean;
        default 'false';
        description
          "Enables RSVP soft-preemption on this LSP";
      }

      uses rsvp-priorities_config;
    }  // grouping rsvp-p2p-tunnel-attributes_config

    grouping rsvp-priorities_config {
      description
        "Configuration paramters related to RSVP-TE priorities";
      leaf setup-priority {
        type uint8 {
          range "0..7";
        }
        default '7';
        description
          "RSVP-TE preemption priority during LSP setup, lower is
         higher priority; default 7 indicates that LSP will not
         preempt established LSPs during setup";
        reference
          "RFC 3209 - RSVP-TE: Extensions to RSVP for
          LSP Tunnels";

      }

      leaf hold-priority {
        type uint8 {
          range "0..7";
        }
        default '0';
        description
          "preemption priority once the LSP is established,
         lower is higher priority; default 0 indicates other LSPs
         will not preempt the LSPs once established";
        reference
          "RFC 3209 - RSVP-TE: Extensions to RSVP for
          LSP Tunnels";

      }
    }  // grouping rsvp-priorities_config

    grouping rsvp-p2p-path-attributes_config {
      description
        "properties of RSPP point-to-point paths";
      uses rsvp-priorities_config;

      leaf retry-timer {
        type uint16 {
          range "1..600";
        }
        units "seconds";
        description
          "sets the time between attempts to establish the
         LSP";
      }
    }  // grouping rsvp-p2p-path-attributes_config

    grouping mpls-rsvp-neighbor-state {
      description
        "State information for RSVP neighbors";
      leaf address {
        type inet:ip-address;
        description
          "Address of RSVP neighbor";
      }

      leaf detected-interface {
        type string;
        description
          "Interface where RSVP neighbor was detected";
      }

      leaf neighbor-status {
        type enumeration {
          enum "UP" {
            value 0;
            description
              "RSVP hello messages are detected from the neighbor";
          }
          enum "DOWN" {
            value 1;
            description
              "RSVP neighbor not detected as up, due to a
             communication failure or IGP notification
             the neighbor is unavailable";
          }
        }
        description
          "Enumuration of possible RSVP neighbor states";
      }

      leaf refresh-reduction {
        type boolean;
        description
          "Suppport of neighbor for RSVP refresh reduction";
        reference
          "RFC 2961 RSVP Refresh Overhead Reduction
          Extensions";

      }
    }  // grouping mpls-rsvp-neighbor-state

    grouping mpls-rsvp-session-state {
      description
        "State information for RSVP TE sessions";
      container sessions {
        description
          "Enclosing container for sessions";
        list session {
          key "local-index";
          config false;
          description
            "List of RSVP sessions";
          leaf local-index {
            type leafref {
              path "../state/local-index";
            }
            description
              "Reference to the local index for the RSVP
            session";
          }

          uses mpls-rsvp-record-route-object-top;

          container state {
            description
              "Operational state parameters relating to the
            RSVP session";
            leaf local-index {
              type uint32;
              description
                "The index used to identify the RSVP session
               on the local network element. This index is
               generated by the device and is unique only
               to the local network element.";
            }

            leaf source-address {
              type inet:ip-address;
              description
                "Origin address of RSVP session";
            }

            leaf destination-address {
              type inet:ip-address;
              description
                "Destination address of RSVP session";
            }

            leaf tunnel-id {
              type uint16;
              description
                "The tunnel ID is an identifier used in the
               RSVP session, which remains constant over
               the life of the tunnel.";
              reference
                "RFC 3209";

            }

            leaf lsp-id {
              type uint16;
              description
                "The LSP ID distinguishes between two LSPs
               originated from the same headend, and is
               commonly used to distinguish RSVP sessions
               during make before break operations.";
              reference
                "RFC 3209";

            }

            leaf session-name {
              type string;
              description
                "The signaled name of this RSVP session.";
            }

            leaf status {
              type enumeration {
                enum "UP" {
                  value 0;
                  description
                    "RSVP session is up";
                }
                enum "DOWN" {
                  value 1;
                  description
                    "RSVP session is down";
                }
              }
              description
                "Enumeration of RSVP session states";
            }

            leaf type {
              type identityref {
                base oc-mplst:LSP_ROLE;
              }
              description
                "The type/role of the RSVP session, signifing
              the session's role on the current device, such as
              a transit session vs. an ingress session.";
            }

            leaf label-in {
              type oc-mplst:mpls-label;
              description
                "Incoming MPLS label associated with this RSVP session";
            }

            leaf label-out {
              type oc-mplst:mpls-label;
              description
                "Outgoing MPLS label associated with this RSVP session";
            }
          }  // container state
        }  // list session
      }  // container sessions
    }  // grouping mpls-rsvp-session-state

    grouping mpls-rsvp-interfaces-state {
      description
        "RSVP state information relevant to an interface";
    }  // grouping mpls-rsvp-interfaces-state

    grouping mpls-rsvp-interface-reservations {
      description
        "Operational state related to interface bandwidth
      reservations";
      container bandwidth-reservations {
        description
          "Enclosing container for bandwidth reservation";
        list bandwidth-reservation {
          key "priority";
          config false;
          description
            "Available and reserved bandwidth by priority on
           the interface.";
          leaf priority {
            type leafref {
              path "../state/priority";
            }
            description
              "Reference to the RSVP priority level";
          }

          container state {
            description
              "Operational state parameters relating to a
            bandwidth reservation at a certain priority";
            leaf priority {
              type union {
                type uint8 {
                  range "0..7";
                }
                type enumeration {
                  enum "ALL" {
                    value 0;
                    description
                      "The ALL keyword represents the overall
                    state of the interface - i.e., the union
                    of all of the priority levels";
                  }
                }
              }
              description
                "RSVP priority level for LSPs traversing the interface";
            }

            leaf available-bandwidth {
              type oc-mplst:bandwidth-mbps;
              description
                "Bandwidth currently available with the priority level,
              or for the entire interface when the priority is set to
              ALL";
            }

            leaf reserved-bandwidth {
              type oc-mplst:bandwidth-mbps;
              description
                "Bandwidth currently reserved within the priority level,
              or the sum of all priority levels when the keyword is set
              to ALL";
            }

            leaf active-reservations-count {
              type yang:gauge64;
              description
                "Number of active RSVP reservations in the associated
              priority, or the sum of all reservations when the priority
              level is set to ALL";
            }

            leaf highwater-mark {
              type oc-mplst:bandwidth-mbps;
              description
                "Maximum bandwidth reserved on the interface within the
              priority, or across all priorities in the case that the
              priority level is set to ALL";
            }
          }  // container state
        }  // list bandwidth-reservation
      }  // container bandwidth-reservations
    }  // grouping mpls-rsvp-interface-reservations

    grouping mpls-rsvp-global-protocol-state {
      description
        "RSVP protocol statistics which may not apply
      on an interface, but are significant globally.";
      leaf path-timeouts {
        type yang:counter64;
        description "TODO";
      }

      leaf reservation-timeouts {
        type yang:counter64;
        description "TODO";
      }

      leaf rate-limited-messages {
        type yang:counter64;
        description
          "RSVP messages dropped due to rate limiting";
      }
    }  // grouping mpls-rsvp-global-protocol-state

    grouping mpls-rsvp-protocol-state {
      description
        "RSVP protocol statistics and message counters";
      leaf in-path-messages {
        type yang:counter64;
        description
          "Number of received RSVP Path messages";
      }

      leaf in-path-error-messages {
        type yang:counter64;
        description
          "Number of received RSVP Path Error messages";
      }

      leaf in-path-tear-messages {
        type yang:counter64;
        description
          "Number of received RSVP Path Tear messages";
      }

      leaf in-reservation-messages {
        type yang:counter64;
        description
          "Number of received RSVP Resv messages";
      }

      leaf in-reservation-error-messages {
        type yang:counter64;
        description
          "Number of received RSVP Resv Error messages";
      }

      leaf in-reservation-tear-messages {
        type yang:counter64;
        description
          "Number of received RSVP Resv Tear messages";
      }

      leaf in-hello-messages {
        type yang:counter64;
        description
          "Number of received RSVP hello messages";
      }

      leaf in-srefresh-messages {
        type yang:counter64;
        description
          "Number of received RSVP summary refresh messages";
      }

      leaf in-ack-messages {
        type yang:counter64;
        description
          "Number of received RSVP refresh reduction ack
         messages";
      }

      leaf out-path-messages {
        type yang:counter64;
        description
          "Number of sent RSVP PATH messages";
      }

      leaf out-path-error-messages {
        type yang:counter64;
        description
          "Number of sent RSVP Path Error messages";
      }

      leaf out-path-tear-messages {
        type yang:counter64;
        description
          "Number of sent RSVP Path Tear messages";
      }

      leaf out-reservation-messages {
        type yang:counter64;
        description
          "Number of sent RSVP Resv messages";
      }

      leaf out-reservation-error-messages {
        type yang:counter64;
        description
          "Number of sent RSVP Resv Error messages";
      }

      leaf out-reservation-tear-messages {
        type yang:counter64;
        description
          "Number of sent RSVP Resv Tear messages";
      }

      leaf out-hello-messages {
        type yang:counter64;
        description
          "Number of sent RSVP hello messages";
      }

      leaf out-srefresh-messages {
        type yang:counter64;
        description
          "Number of sent RSVP summary refresh messages";
      }

      leaf out-ack-messages {
        type yang:counter64;
        description
          "Number of sent RSVP refresh reduction ack messages";
      }
    }  // grouping mpls-rsvp-protocol-state

    grouping mpls-rsvp-record-route-object-top {
      description
        "Top-level structure grouping for list of record route
      objects.";
      container record-route-objects {
        description
          "Enclosing container for MPLS RRO objects associated with the
        traffic engineered tunnel.";
        list record-route-object {
          key "index";
          config false;
          description
            "Read-only list of record route objects associated with the
        traffic engineered tunnel. Each entry in the list
        may contain a hop IP address, MPLS label allocated
        at the hop, and the flags associated with the entry.";
          leaf index {
            type leafref {
              path "../state/index";
            }
            description
              "Reference to the index of the record route object.
            The index is used to indicate the ordering of hops in
            the path.";
          }

          container state {
            config false;
            description
              "Information related to RRO objects. The hop, label, and
            optional flags are present for each entry in the list.";
            uses mpls-rsvp-record-route-object-state;
          }  // container state
        }  // list record-route-object
      }  // container record-route-objects
    }  // grouping mpls-rsvp-record-route-object-top

    grouping mpls-rsvp-record-route-object-state {
      description
        "Grouping to hold information relating to record route
       objects relevant to a traffic engineering LSP.";
      leaf index {
        type uint8;
        description
          "Index of object in the list. Used for ordering.";
      }

      leaf address {
        type inet:ip-address;
        description
          "IP router hop for RRO entry";
      }

      leaf reported-label {
        type oc-mplst:mpls-label;
        description
          "Label reported for RRO hop";
      }

      leaf reported-flags {
        type uint8;
        description
          "Subobject flags for MPLS label";
      }
    }  // grouping mpls-rsvp-record-route-object-state
  }  // module openconfig-mpls-rsvp