module junos-conf-virtual-chassis {

    yang-version 1;

    namespace
      "http://yang.juniper.net/junos/conf/virtual-chassis";

    prefix jc-virtual-chassis;

    import junos-common-ddl-extensions {
      prefix junos;
      revision-date "2019-01-01";
    }
    import junos-common-types {
      prefix jt;
      revision-date "2019-01-01";
    }
    import junos-conf-root {
      prefix jc;
      revision-date "2019-01-01";
    }

    organization "Juniper Networks, Inc.";

    contact "yang-support@juniper.net";

    description
      "Junos virtual-chassis configuration module";

    revision "2019-01-01" {
      description "Junos: 21.3R1.9";
    }


    augment /jc:configuration {
      uses virtual-chassis-group;
    }

    augment /jc:configuration/jc:groups {
      uses virtual-chassis-group;
    }

    grouping virtual-chassis-group {
      container virtual-chassis {
        junos:must "(!("forwarding-options hyper-mode"))";
        junos:must-message "To configure virtual-chassis, 'forwarding-options hyper-mode' should not be configured";
        description
          "Virtual chassis configuration";
        uses apply-advanced;

        container auto-sw-update {
          presence "enable auto-sw-update";
          description "Auto software update";
          uses apply-advanced;

          leaf package-name {
            type string {
              junos:posix-pattern "![*]";
              junos:pattern-message "Package name cannot contain '*'.  Use TAB for filename completion";
            }
            description
              "URL or pathname of software package";
          }

          container ex-4300 {
            presence "enable ex-4300";
            description
              "URL or pathname of EX-43xx software package";
            uses apply-advanced;

            leaf package-name {
              type string {
                junos:posix-pattern "![*]";
                junos:pattern-message "Package name cannot contain '*'.  Use TAB for filename completion";
              }
              description
                "URL or pathname of software package";
            }
          }  // container ex-4300

          container ex-4600 {
            presence "enable ex-4600";
            description
              "URL or pathname of EX-46xx software package";
            uses apply-advanced;

            leaf package-name {
              type string {
                junos:posix-pattern "![*]";
                junos:pattern-message "Package name cannot contain '*'.  Use TAB for filename completion";
              }
              description
                "URL or pathname of software package";
            }
          }  // container ex-4600

          container qfx-3 {
            presence "enable qfx-3";
            description
              "URL or pathname of qfx-3 software package";
            uses apply-advanced;

            leaf package-name {
              type string {
                junos:posix-pattern "![*]";
                junos:pattern-message "Package name cannot contain '*'.  Use TAB for filename completion";
              }
              description
                "URL or pathname of software package";
            }
          }  // container qfx-3

          container qfx-5 {
            presence "enable qfx-5";
            description
              "URL or pathname of qfx-5 software package";
            uses apply-advanced;

            leaf package-name {
              type string {
                junos:posix-pattern "![*]";
                junos:pattern-message "Package name cannot contain '*'.  Use TAB for filename completion";
              }
              description
                "URL or pathname of software package";
            }
          }  // container qfx-5
        }  // container auto-sw-update

        choice provisioning {
          leaf preprovisioned {
            type empty;
            description
              "Only accept preprovisioned members";
          }
          leaf auto-provisioned {
            type empty;
            description
              "Add and configure new line-card members automatically";
          }
        }  // choice provisioning

        leaf id {
          type jt:isosysid;
          description
            "Virtual chassis identifier, of type ISO system-id";
        }

        container graceful-restart {
          description
            "Configure graceful restart attributes";
          uses apply-advanced;

          choice enable-disable {
            leaf disable {
              type empty;
              description
                "Disable graceful restart";
            }
          }  // choice enable-disable
        }  // container graceful-restart

        leaf no-split-detection {
          junos:must "(!("virtual-chassis heartbeat-address"))";
          junos:must-message "no-split-detection is not allowed when heartbeat-address is configured";
          type empty;
          description
            "Disable split detection. This command is recommended to only be enabled in a 2 member setup";
        }

        container traceoptions {
          description
            "Trace options for virtual chassis";
          uses juniper-virtual-chassis-traceoptions;
        }  // container traceoptions

        leaf heartbeat-timeout {
          type union {
            type string {
              pattern "<.*>|$.*";
            }
            type uint32 {
              range "1 .. 60";
            }
          }
          units "seconds";
          default "2";
          description
            "Member's timeout period for receiving a heartbeat packet";
        }

        leaf heartbeat-address {
          junos:must "(!("virtual-chassis no-split-detection"))";
          junos:must-message "heartbeat-address is not allowed when no-split-detection is configured";
          type jt:ipaddr;
          description
            "Peer member's IP address for sending heartbeat packet";
        }

        leaf heartbeat-tos {
          type union {
            type string {
              pattern "<.*>|$.*";
            }
            type uint32 {
              range "0 .. 255";
            }
          }
          default "0";
          description
            "IPv4 TOS/DS or IPv6 TC octet for heartbeat packet";
        }

        leaf locality-bias {
          junos:must "(!("services l2tp weighted-load-balancing"))";
          junos:must-message "VC Locality-bias is not allowed with 'services l2tp weighted-load-balancing'";
          junos:must "(!(any "interfaces <*> aggregated-ether-options load-balance adaptive"))";
          junos:must-message "VC Locality-bias is not allowed if any interface has 'aggregated-ether-options load-balance adaptive'";
          type empty;
          description
            "Bias transit packets to egress local chassis of Virtual-Chassis";
        }

        list member {
          key "name";
          ordered-by user;
          description
            "Member of virtual chassis configuration";
          leaf name {
            type union {
              type string {
                pattern "<.*>|$.*";
              }
              type int32;
            }
            description "Member identifier";
          }

          uses apply-advanced;

          leaf mastership-priority {
            type union {
              type string {
                pattern "<.*>|$.*";
              }
              type int32 {
                range "0 .. 255";
              }
            }
            description
              "Member's mastership priority";
          }

          leaf fabric-tree-root {
            type empty;
            description
              "Member's participation as root of multicast distribution tree";
          }

          leaf role {
            type enumeration {
              enum "routing-engine" {
                value 0;
                description
                  "Member to assume role of routing engine";
              }
              enum "line-card" {
                value 1;
                description
                  "Member to assume role of line card";
              }
            }
            default "line-card";
            description "Member's role";
          }

          leaf serial-number {
            type string {
              length "1 .. 12";
            }
            description
              "Member's serial number";
          }

          leaf no-management-vlan {
            type empty;
            description
              "Disable management VLAN";
          }

          leaf location {
            type string {
              length "1 .. 254";
            }
            description "Member's location";
          }
        }  // list member

        container aliases {
          description
            "Aliases for serial numbers";
          uses apply-advanced;

          list serial-number {
            key "name";
            ordered-by user;
            description
              "Set alias for a serial number";
            leaf name {
              type string {
                length "1 .. 12";
              }
              description
                "Member's serial number";
            }

            uses apply-advanced;

            leaf alias-name {
              type string {
                length "1 .. 12";
              }
              description
                "Provide an alias name for this serial-number";
            }
          }  // list serial-number
        }  // container aliases

        container mac-persistence-timer {
          description
            "How long to retain MAC address when member leaves virtual chassis";
          uses apply-advanced;

          leaf timer {
            type union {
              type string {
                pattern "<.*>|$.*";
              }
              type uint32 {
                range "1 .. 60";
              }
            }
            units "minutes";
            default "60";
            description
              "MAC persistence time";
          }

          leaf disable {
            type empty;
            description
              "Disable MAC persistence timer";
          }
        }  // container mac-persistence-timer

        container fast-failover {
          description
            "Fast failover mechanism";
          uses apply-advanced;

          leaf ge {
            type empty;
            description
              "Fast failover on GE VC uplink ports (ring has to be formed)";
          }

          leaf xe {
            type empty;
            description
              "Fast failover on XE VC uplink ports (ring has to be formed)";
          }

          leaf et {
            type empty;
            description
              "Fast failover on ET VC uplink ports (ring has to be formed)";
          }

          container vcp {
            description
              "Fast failover on VCP ports";
            uses apply-advanced;

            leaf disable {
              type empty;
              description "Disable";
            }
          }  // container vcp
        }  // container fast-failover

        choice auto_conversion_choice {
          leaf no-auto-conversion {
            type empty;
            description
              "Disable automatic VC port conversion";
          }

          case case_2 {
          }  // case case_2
        }  // choice auto_conversion_choice

        leaf vcp-no-hold-time {
          type empty;
          description
            "Set no hold time for vcp interfaces";
        }
      }  // container virtual-chassis
    }  // grouping virtual-chassis-group

    grouping apply-advanced {
      description
        "Apply advanced configuration logic";
      leaf-list apply-groups {
        type string;
        ordered-by user;
        description
          "Groups from which to inherit configuration data";
      }

      leaf-list apply-groups-except {
        type string;
        ordered-by user;
        description
          "Don't inherit configuration data from these groups";
      }

      list apply-macro {
        key "name";
        ordered-by user;
        description
          "Macro and parameters for commit script expansion";
        uses apply-macro-type;
      }  // list apply-macro
    }  // grouping apply-advanced

    grouping apply-macro-type {
      description
        "Macro data for commit-script expansion";
      leaf name {
        type string;
        description
          "Name of the macro to be expanded";
      }

      list data {
        key "name";
        uses macro-data-type;
      }  // list data
    }  // grouping apply-macro-type

    grouping juniper-virtual-chassis-traceoptions {
      description
        "Global tracing options for virtual chassis";
      uses apply-advanced;

      container file {
        description "Trace file options";
        uses vchassis_trace_file_type;
      }  // container file

      list flag {
        key "name";
        ordered-by user;
        description "Tracing parameters";
        leaf name {
          type enumeration {
            enum "parse" {
              value 0;
              description
                "Trace configuration parsing";
            }
            enum "hello" {
              value 1;
              description
                "Trace virtual chassis hello packets";
            }
            enum "psn" {
              value 2;
              description
                "Trace partial sequence number (PSN) packets";
            }
            enum "csn" {
              value 3;
              description
                "Trace complete sequence number (CSN) packets";
            }
            enum "lsp" {
              value 4;
              description
                "Trace virtual link-state packets";
            }
            enum "normal" {
              value 5;
              description
                "Trace normal events";
            }
            enum "task" {
              value 6;
              description
                "Trace virtual chassis task processing";
            }
            enum "krt" {
              value 7;
              description
                "Trace virtual chassis kernel events";
            }
            enum "spf" {
              value 8;
              description
                "Trace virtual chassis SPF events";
            }
            enum "me" {
              value 9;
              description
                "Trace virtual chassis master election events";
            }
            enum "packets" {
              value 10;
              description
                "Trace virtual chassis packets";
            }
            enum "lsp-generation" {
              value 11;
              description
                "Trace virtual chassis LSP generation";
            }
            enum "error" {
              value 12;
              description
                "Trace virtual chassis errors";
            }
            enum "route" {
              value 13;
              description
                "Trace virtual chassis routing information";
            }
            enum "state" {
              value 14;
              description
                "Trace virtual chassis state transitions";
            }
            enum "auto-configuration" {
              value 15;
              description
                "Trace virtual chassis ports auto configuration";
            }
            enum "graceful-restart" {
              value 16;
              description
                "Trace graceful restart events";
            }
            enum "dcp-infra" {
              value 17;
              description
                "Trace dcp infrastructure configuration";
            }
            enum "dcp-dev-state" {
              value 18;
              description
                "Trace dcp infrastructure configuration";
            }
            enum "heartbeat" {
              value 19;
              description
                "Trace virtual chassis heartbeat packets";
            }
            enum "all" {
              value 20;
              description "Trace everything";
            }
          }
        }

        leaf send {
          type empty;
          description
            "Trace transmitted packets";
        }

        leaf receive {
          type empty;
          description
            "Trace received packets";
        }

        leaf detail {
          type empty;
          description
            "Trace detailed information";
        }

        leaf disable {
          type empty;
          description
            "Disable this trace flag";
        }
      }  // list flag
    }  // grouping juniper-virtual-chassis-traceoptions

    grouping macro-data-type {
      leaf name {
        type string;
        description
          "Keyword part of the keyword-value pair";
      }

      leaf value {
        type string;
        description
          "Value part of the keyword-value pair";
      }
    }  // grouping macro-data-type

    grouping vchassis_trace_file_type {
      leaf filename {
        type string {
          junos:posix-pattern "![/ %]";
          junos:pattern-message "Must not contain '/', % or a space";
          length "1 .. 1024";
        }
        description
          "Name of file in which to write trace information";
      }

      leaf replace {
        type empty;
        description
          "Replace trace file rather than appending to it";
      }

      leaf size {
        type string;
        description
          "Maximum trace file size";
      }

      leaf files {
        type union {
          type string {
            pattern "<.*>|$.*";
          }
          type uint32 {
            range "2 .. 1000";
          }
        }
        default "10";
        description
          "Maximum number of trace files";
      }

      leaf no-stamp {
        type empty;
        description
          "Do not timestamp trace file";
      }

      choice world-readable-choice {
        leaf world-readable {
          type empty;
          description
            "Allow any user to read the log file";
        }
        leaf no-world-readable {
          type empty;
          description
            "Don't allow any user to read the log file";
        }
      }  // choice world-readable-choice
    }  // grouping vchassis_trace_file_type
  }  // module junos-conf-virtual-chassis