ietf-rsvp-extended.yang

module ietf-rsvp-extended {

  namespace "urn:ietf:params:xml:ns:yang:ietf-rsvp-extended";

  prefix "rsvp-ext";

  import ietf-rsvp {
    prefix "rsvp";
  }

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

  organization
    "IETF TEAS Working Group";

  contact "TBA";

  description
    "This module contains the RSVP YANG data model.";

  revision 2015-10-16 {
    description "Latest revision of RSVP extensions yang module.";
    reference "RFC2205";
  }

  /* RSVP features */
  feature authentication {
    description
      "Indicates support for RSVP authentication";
  }

  feature error-statistics {
    description
      "Indicates support for error statistics";
  }

  feature global-statistics {
    description
      "Indicates support for global statistics";
  }

  feature graceful-restart {
    description
      "Indicates support for RSVP graceful restart";
  }

  feature hellos {
    description
      "Indicates support for RSVP hellos (RFC3209).";
  }

  feature notify {
    description
      "Indicates support for RSVP notify message (RFC3473).";
  }

  feature refresh-reduction {
    description
      "Indicates support for RSVP refresh reduction 
      (RFC2961).";
  }

  feature refresh-reduction-extended {
    description
      "Indicates support for RSVP refresh reduction 
      (RFC2961).";
  }

  feature per-interface-statistics {
    description
      "Indicates support for per interface statistics";
  }

  grouping graceful-restart-extended_config {
    description
      "Configuration parameters relating to RSVP
      Graceful-Restart";
    leaf restart-time {
      type uint32;
      units seconds;
      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 authentication-extended_config {
    description
      "Configuration parameters relating to RSVP
      authentication";
    leaf lifetime {
      type uint32 {
        range "30..86400";
      }
      description
        "Life time for each security association";
      reference
        "RFC 2747: RSVP Cryptographic
        Authentication";
    }
    leaf window-size {
      type uint32 {
        range "1..64";
      }
      description
        "Window-size to limit number of out-of-order
        messages.";
      reference
        "RFC 2747: RSVP Cryptographic
        Authentication";
    }
    leaf challenge {
      type empty;
      description
        "Enable challenge messages.";
      reference
        "RFC 2747: RSVP Cryptographic
        Authentication";
    }
    leaf retransmits {
      type uint32 {
        range "1..10000";
      }
      description
        "Number of retransmits when messages are
        dropped.";
      reference
        "RFC 2747: RSVP Cryptographic
        Authentication";
    }
    leaf key-chain {
      type string {
        length "1..32";
      }
      description
        "Key chain name to authenticate RSVP
        signaling messages.";
      reference
        "RFC 2747: RSVP Cryptographic
        Authentication";
    }
  }

  grouping rsvp-hellos-extended_config {
    description
      "Configuration parameters relating to RSVP
      hellos";
    leaf interface-based {
      type empty;
      description "Enable interface-based
        Hello adjacency if present.";
    }
    leaf hello-interval {
      type uint32;
      units milliseconds;
      description
        "Configure interval between successive Hello
        messages in milliseconds.";
      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 hello-misses {
      type uint32 {
        range "1..10";
      }
      description
        "Configure max number of consecutive missed
        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";
    }
  }

  grouping signaling-parameters-extended_config {
    description
      "Configuration parameters relating to RSVP
      signaling";
    leaf refresh-interval {
      type uint32;
      description
        "Set interval between successive refreshes";
    }
    leaf refresh-misses {
      type uint32;
      description
        "Set max number of consecutive missed
        messages for state expiry";
    }
    leaf checksum {
      type uint32;
      description
        "Enable RSVP message checksum computation";
    }
    leaf patherr-state-removal {
      type empty;
      description
        "State-Removal flag in Path Error message
        if present.";
    }
  }

  grouping refresh-reduction-extended_config {
    description
      "Configuration parameters relating to RSVP
      refresh reduction";

    leaf bundle-message-max-size {
      type uint32 {
        range "512..65000";
      }
      description
        "Configure maximum size (bytes) of a
        single RSVP Bundle message.";
    }
    leaf reliable-ack-hold-time {
      type uint32;
      units milliseconds;
      description
        "Configure hold time in milliseconds for
        sending RSVP ACK message(s).";
    }
    leaf reliable-ack-max-size {
      type uint32;
      description
        "Configure max size of a single RSVP ACK
        message.";
    }
    leaf reliable-retransmit-time {
      type uint32;
      units milliseconds;
      description
        "Configure min delay in milliseconds to
        wait for an ACK before a retransmit.";
    }
    leaf reliable-srefresh {
      type empty;
      description
        "Configure use of reliable messaging for
        summary refresh if present.";
    }
    leaf summary-max-size {
      type uint32 {
        range "20..65000";
      }
      description
        "Configure max size (bytes) of a single
        RSVP summary refresh message.";
    }
  }

  grouping statistics-packets-extended_state {
    description
      "Packet statistics.";
    leaf discontinuity-time {
      type yang:date-and-time;
      description
        "The time on the most recent occasion at which any one
        or more of the statistic counters suffered a
        discontinuity. If no such discontinuities have occurred
        since the last re-initialization of the local
        management subsystem, then this node contains the time
        the local management subsystem re-initialized itself.";
    }
    leaf tx-dropped {
      type yang:counter32;
      description
        "Packet tx dropped count";
    }

    leaf rx-dropped {
      type yang:counter32;
      description
        "Packet rx dropped count";
    }

    leaf tx-error {
      type yang:counter32;
      description
        "Packet tx error count";
    }

    leaf rx-error {
      type yang:counter32;
      description
        "Packet rx error count";
    }
  }

  grouping statistics-protocol-extended_state {
    description 
      "RSVP protocol statistics.";
  }

  grouping statistics-errors-extended_state {
    description
      "Error statistics.";
  }

  grouping statistics-extended_state {
    description "RSVP statistic attributes.";
    uses statistics-packets-extended_state;
    uses statistics-protocol-extended_state;
    uses statistics-errors-extended_state;
  }

  /**
   * RSVP extensions augmentations
   */

  /* RSVP globals graceful restart*/
  augment "/rsvp:rsvp/rsvp:globals/rsvp:config/"+
          "rsvp:graceful-restart" {
    description
      "RSVP globals configuration extensions";
    uses graceful-restart-extended_config;
  }
  augment "/rsvp:rsvp/rsvp:globals/rsvp:state/"+
          "rsvp:graceful-restart" {
    description
      "RSVP globals state extensions";
    uses graceful-restart-extended_config;
  }

  /* RSVP statistics augmentation */
  augment "/rsvp:rsvp/rsvp:globals/rsvp:state/"+
          "rsvp:packets-stats" {
    description
      "RSVP packet stats extensions";
    uses statistics-packets-extended_state;
  }
  augment "/rsvp:rsvp/rsvp:globals/rsvp:state/"+
          "rsvp:protocol-stats" {
    description
      "RSVP protocol message stats extensions";
    uses statistics-protocol-extended_state;
  }
  augment "/rsvp:rsvp/rsvp:globals/rsvp:state/"+
          "rsvp:errors-stats" {
    description
      "RSVP errors stats extensions";
    uses statistics-errors-extended_state;
  }

  /**
   * RSVP all interfaces extensions
   */

  /* RSVP interface signaling extensions */
  augment "/rsvp:rsvp/rsvp:interfaces/rsvp:config" {
    description
      "RSVP signaling all interfaces configuration extensions";
    uses signaling-parameters-extended_config;
  }
  augment "/rsvp:rsvp/rsvp:interfaces/rsvp:state" {
    description
      "RSVP signaling all interfaces state extensions";
    uses signaling-parameters-extended_config;
  }
  /* RSVP refresh reduction extension */
  augment "/rsvp:rsvp/rsvp:interfaces/rsvp:config/" +
    "rsvp:refresh-reduction" {
    description
      "RSVP refresh-reduction all interface configuration
       extensions";
    uses refresh-reduction-extended_config;
  }
  augment "/rsvp:rsvp/rsvp:interfaces/rsvp:state/" +
    "rsvp:refresh-reduction" {
    description
      "RSVP refresh-reduction all interfaces state extensions";
    uses refresh-reduction-extended_config;
  }

  /* RSVP hellos extension */
  augment "/rsvp:rsvp/rsvp:interfaces/rsvp:config/rsvp:rsvp-hellos" {
    description
      "RSVP hello all interfaces configuration extensions";
    uses rsvp-hellos-extended_config;
  }
  augment "/rsvp:rsvp/rsvp:interfaces/rsvp:state/rsvp:rsvp-hellos" {
    description
      "RSVP hello all interfaces state extensions";
    uses rsvp-hellos-extended_config;
  }

  /* RSVP authentication extension */
  augment "/rsvp:rsvp/rsvp:interfaces/rsvp:config/" +
    "rsvp:authentication" {
    description
      "RSVP authentication all interfaces configuration extensions";
    uses authentication-extended_config;
  }
  augment "/rsvp:rsvp/rsvp:interfaces/rsvp:state/" +
    "rsvp:authentication" {
    description
      "RSVP authentication all interfaces state extensions";
    uses authentication-extended_config;
  }

  /**
   * RSVP interface extensions
   */

  /* RSVP interface signaling extensions */
  augment "/rsvp:rsvp/rsvp:interfaces/rsvp:interface/rsvp:config" {
    description
      "RSVP signaling interface configuration extensions";
    uses signaling-parameters-extended_config;
  }
  augment "/rsvp:rsvp/rsvp:interfaces/rsvp:interface/rsvp:state" {
    description
      "RSVP signaling interface state extensions";
    uses signaling-parameters-extended_config;
  }

  /* RSVP refresh reduction extension */
  augment "/rsvp:rsvp/rsvp:interfaces/rsvp:interface/rsvp:config/" +
    "rsvp:refresh-reduction" {
    description
      "RSVP refresh-reduction interface configuration extensions";
    uses refresh-reduction-extended_config;
  }
  augment "/rsvp:rsvp/rsvp:interfaces/rsvp:interface/rsvp:state/" +
    "rsvp:refresh-reduction" {
    description
      "RSVP refresh-reduction interface state extensions";
    uses refresh-reduction-extended_config;
  }

  /* RSVP hellos extension */
  augment "/rsvp:rsvp/rsvp:interfaces/rsvp:interface/rsvp:config/" +
    "rsvp:rsvp-hellos" {
    description
      "RSVP hello interface configuration extensions";
    uses rsvp-hellos-extended_config;
  }
  augment "/rsvp:rsvp/rsvp:interfaces/rsvp:interface/rsvp:state/" +
    "rsvp:rsvp-hellos" {
    description
      "RSVP hello interface state extensions";
    uses rsvp-hellos-extended_config;
  }

  /* RSVP authentication extension */
  augment "/rsvp:rsvp/rsvp:interfaces/rsvp:interface/rsvp:config/" +
    "rsvp:authentication" {
    description
      "RSVP authentication interface configuration extensions";
    uses authentication-extended_config;
  }
  augment "/rsvp:rsvp/rsvp:interfaces/rsvp:interface/rsvp:state/" +
    "rsvp:authentication" {
    description
      "RSVP authentication interface state extensions";
    uses authentication-extended_config;
  }
}