module ietf-lmap-control { yang-version 1.1; namespace "urn:ietf:params:xml:ns:yang:ietf-lmap-control"; prefix "lmapc"; import ietf-yang-types { prefix yang; } import ietf-netconf-acm { prefix nacm; } import ietf-lmap-common { prefix lmap; } organization "IETF Large-Scale Measurement Platforms Working Group"; contact "WG Web: WG List: Editor: Juergen Schoenwaelder Editor: Vaibhav Bajpai "; description "This module defines a data model for controlling measurement agents that are part of a Large-Scale Measurement Platform (LMAP). This data model is expected to be implemented by a measurement agent."; revision "2017-04-21" { description "Initial version"; reference "RFC XXXX: A YANG Data Model for LMAP Measurement Agents"; } /* * Typedefs */ typedef event-ref { type leafref { path "/lmap/events/event/name"; } description "This type is used by data models that need to reference a configured event source."; } typedef task-ref { type leafref { path "/lmap/tasks/task/name"; } description "This type is used by data models that need to reference a configured task."; } typedef schedule-ref { type leafref { path "/lmap/schedules/schedule/name"; } description "This type is used by data models that need to reference a configured schedule."; } /* * Groupings */ grouping start-end-grouping { description "A grouping that provides start and end times for event objects."; leaf start { type yang:date-and-time; description "The date and time when the event object starts to create triggers."; } leaf end { type yang:date-and-time; description "The date and time when the event object stops to create triggers. It is generally a good idea to always configure an end time and to refresh the end time as needed to ensure that agents that lose connectivity to their controller do not continue executing schedules forever."; } } /* * Capability, configuration and state data nodes */ container lmap { description "Configuration and control of an LMAP agent."; container capabilities { config false; description "Agent capabilities including a list of supported tasks."; leaf version { type string; config false; mandatory true; description "A short description of the software implementing the measurement agent. This should include the version number of the measurement agent software."; } leaf-list tag { type lmap:tag; config false; description "An optional unordered set of tags that provide additional information about the capabilities of the measurement agent."; } container tasks { description "A list of tasks that the measurement agent supports."; list task { key name; description "The list of tasks supported by the LMAP agent."; leaf name { type lmap:identifier; description "The unique name of a task capability."; } uses lmap:registry-grouping; leaf version { type string; description "A short description of the software implementing the task. This should include the version number of the measurement task software."; } leaf program { type string; description "The (local) program to invoke in order to execute the task."; } } } } /* * Agent Configuration */ container agent { description "Configuration of parameters affecting the whole measurement agent."; leaf agent-id { type yang:uuid; description "The agent-id identifies a measurement agent with a very low probability of collision. In certain deployments, the agent-id may be considered sensitive and hence this object is optional."; } leaf group-id { type string; description "The group-id identifies a group of measurement agents. In certain deployments, the group-id may be considered less sensitive than the agent-id."; } leaf measurement-point { type string; description "The measurement point indicating where the measurement agent is located on a path."; reference "RFC 7398: A Reference Path and Measurement Points for Large-Scale Measurement of Broadband Performance"; } leaf report-agent-id { type boolean; must '. != "true" or ../agent-id' { description "An agent-id must exist for this to be set to true."; } default false; description "The 'report-agent-id' controls whether the 'agent-id' is reported to collectors."; } leaf report-group-id { type boolean; must '. != "true" or ../group-id' { description "A group-id must exist for this to be set to true."; } default false; description "The 'report-group-id' controls whether the 'group-id' is reported to collectors."; } leaf report-measurement-point { type boolean; must '. != "true" or ../measurement-point' { description "A measurement-point must exist for this to be set to true."; } default false; description "The 'report-measurement-point' controls whether the 'measurement-point' is reported to collectors."; } leaf controller-timeout { type uint32; units "seconds"; description "A timer is started after each successful contact with a controller. When the timer reaches the controller-timeout, an event (controller-lost) is raised indicating that connectivity to the controller has been lost."; } leaf last-started { type yang:date-and-time; config false; mandatory true; description "The date and time the measurement agent last started."; } } /* * Task Configuration */ container tasks { description "Configuration of LMAP tasks."; list task { key name; description "The list of tasks configured on the LMAP agent. Note that a configured task MUST resolve to a task listed in the capabilities. Attempts to execute a configured task that is not listed in the capabilities result in a runtime execution error."; leaf name { type lmap:identifier; description "The unique name of a task."; } uses lmap:registry-grouping; leaf program { type string; nacm:default-deny-write; description "The (local) program to invoke in order to execute the task. If this leaf is not set, then the system will try to identify a suitable program based on the registry information present."; } uses lmap:options-grouping { description "The list of task specific options."; } leaf-list tag { type lmap:identifier; description "A set of task specific tags that are reported together with the measurement results to a collector. A tag can be used, for example, to carry the Measurement Cycle ID."; } } } /* * Schedule Instructions */ container schedules { description "Configuration of LMAP schedules. Schedules control which tasks are executed by the LMAP implementation."; list schedule { key name; description "Configuration of a particular schedule."; leaf name { type lmap:identifier; description "The locally-unique, administratively assigned name for this schedule."; } leaf start { type event-ref; mandatory true; description "The event source controlling the start of the scheduled actions."; } choice stop { description "This choice contains optional leafs that control the graceful forced termination of scheduled actions. When the end has been reached, the scheduled actions should be forced to terminate the measurements. This may involve being active some additional time in order to properly finish the action's activity (e.g., waiting for any still outstanding messages)."; leaf end { type event-ref; description "The event source controlling the graceful forced termination of the scheduled actions."; } leaf duration { type uint32; units "seconds"; description "The duration controlling the graceful forced termination of the scheduled actions."; } } leaf execution-mode { type enumeration { enum sequential { value 1; description "The actions of the schedule are executed sequentially."; } enum parallel { value 2; description "The actions of the schedule are executed concurrently"; } enum pipelined { value 3; description "The actions of the schedule are executed in a pipelined mode. Output created by an action is passed as input to the subsequent action."; } } default pipelined; description "The execution mode of this schedule determines in which order the actions of the schedule are executed."; } leaf-list tag { type lmap:tag; description "A set of schedule specific tags that are reported together with the measurement results to a collector."; } leaf-list suppression-tag { type lmap:tag; description "A set of suppression tags that are used to select schedules to be suppressed."; } leaf state { type enumeration { enum enabled { value 1; description "The value 'enabled' indicates that the schedule is currently enabled."; } enum disabled { value 2; description "The value 'disabled' indicates that the schedule is currently disabled."; } enum running { value 3; description "The value 'running' indicates that the schedule is currently running."; } enum suppressed { value 4; description "The value 'suppressed' indicates that the schedule is currently suppressed."; } } config false; mandatory true; description "The current state of the schedule."; } leaf storage { type yang:gauge64; units "bytes"; config false; mandatory true; description "The amount of secondary storage (e.g., allocated in a file system) holding temporary data allocated to the schedule in bytes. This object reports the amount of allocated physical storage and not the storage used by logical data records."; } leaf invocations { type yang:counter32; config false; mandatory true; description "Number of invocations of this schedule. This counter does not include suppressed invocations or invocations that were prevented due to an overlap with a previous invocation of this schedule."; } leaf suppressions { type yang:counter32; config false; mandatory true; description "Number of suppressed executions of this schedule."; } leaf overlaps { type yang:counter32; config false; mandatory true; description "Number of executions prevented due to overlaps with a previous invocation of this schedule."; } leaf failures { type yang:counter32; config false; mandatory true; description "Number of failed executions of this schedule. A failed execution is an execution where at least one action failed."; } leaf last-invocation { type yang:date-and-time; config false; description "The date and time of the last invocation of this schedule."; } list action { key name; description "An action describes a task that is invoked by the schedule. Multiple actions are invoked according to the execution-mode of the schedule."; leaf name { type lmap:identifier; description "The unique identifier for this action."; } leaf task { type task-ref; mandatory true; description "The task invoked by this action."; } container parameters { description "This container is a place-holder for run-time parameters defined in task-specific data models augmenting the base lmap control data model."; choice extension { description "This choice is provided to augment in different sets of parameters."; } } uses lmap:options-grouping { description "The list of action specific options that are appended to the list of task specific options."; } leaf-list destination { type schedule-ref; description "A set of schedules receiving the output produced by this action. The output is stored temporarily since the destination schedules will in general not be running when output is passed to them. The behaviour of an action passing data to its own schedule is implementation specific. Data passed to a sequential or pipelined schedule is received by the schedule's first action. Data passed to a parallel schedule is received by all actions of the schedule."; } leaf-list tag { type lmap:tag; description "A set of action specific tags that are reported together with the measurement results to a collector."; } leaf-list suppression-tag { type lmap:tag; description "A set of suppression tags that are used to select actions to be suppressed."; } leaf state { type enumeration { enum enabled { value 1; description "The value 'enabled' indicates that the action is currently enabled."; } enum disabled { value 2; description "The value 'disabled' indicates that the action is currently disabled."; } enum running { value 3; description "The value 'running' indicates that the action is currently runnning."; } enum suppressed { value 4; description "The value 'suppressed' indicates that the action is currently suppressed."; } } config false; mandatory true; description "The current state of the action."; } leaf storage { type yang:gauge64; units "bytes"; config false; mandatory true; description "The amount of secondary storage (e.g., allocated in a file system) holding temporary data allocated to the schedule in bytes. This object reports the amount of allocated physical storage and not the storage used by logical data records."; } leaf invocations { type yang:counter32; config false; mandatory true; description "Number of invocations of this action. This counter does not include suppressed invocations or invocations that were prevented due to an overlap with a previous invocation of this action."; } leaf suppressions { type yang:counter32; config false; mandatory true; description "Number of suppressed executions of this action."; } leaf overlaps { type yang:counter32; config false; mandatory true; description "Number of executions prevented due to overlaps with a previous invocation of this action."; } leaf failures { type yang:counter32; config false; mandatory true; description "Number of failed executions of this action."; } leaf last-invocation { type yang:date-and-time; config false; mandatory true; description "The date and time of the last invocation of this action."; } leaf last-completion { type yang:date-and-time; config false; mandatory true; description "The date and time of the last completion of this action."; } leaf last-status { type lmap:status-code; config false; mandatory true; description "The status code returned by the last execution of this action."; } leaf last-message { type string; config false; mandatory true; description "The status message produced by the last execution of this action."; } leaf last-failed-completion { type yang:date-and-time; config false; mandatory true; description "The date and time of the last failed completion of this action."; } leaf last-failed-status { type lmap:status-code; config false; mandatory true; description "The status code returned by the last failed execution of this action."; } leaf last-failed-message { type string; config false; mandatory true; description "The status message produced by the last failed execution of this action."; } } } } /* * Suppression Instructions */ container suppressions { description "Suppression information to prevent schedules or certain actions from starting."; list suppression { key name; description "Configuration of a particular suppression."; leaf name { type lmap:identifier; description "The locally-unique, administratively assigned name for this suppression."; } leaf start { type event-ref; description "The event source controlling the start of the suppression period."; } leaf end { type event-ref; description "The event source controlling the end of the suppression period. If not present, supression continues indefinitely."; } leaf-list match { type lmap:glob-pattern; description "A set of suppression match pattern. The suppression will apply to all schedules (and their actions) that have a matching value in their suppression-tags and to all actions that have a matching value in their suppression-tags."; } leaf stop-running { type boolean; default false; description "If 'stop-running' is true, running schedules and actions matching the suppression will be terminated when suppression is activated. If 'stop-running' is false, running schedules and actions will not be affected if suppression is activated."; } leaf state { type enumeration { enum enabled { value 1; description "The value 'enabled' indicates that the suppression is currently enabled."; } enum disabled { value 2; description "The value 'disabled' indicates that the suppression is currently disabled."; } enum active { value 3; description "The value 'active' indicates that the suppression is currently active."; } } config false; mandatory true; description "The current state of the suppression."; } } } /* * Event Instructions */ container events { description "Configuration of LMAP events. Implementations may be forced to delay acting upon the occurance of events in the face of local constraints. An action triggered by an event therefore should not rely on the accuracy provided by the scheduler implementation."; list event { key name; description "The list of event sources configured on the LMAP agent."; leaf name { type lmap:identifier; description "The unique name of an event source."; } leaf random-spread { type uint32; units seconds; description "This optional leaf adds a random spread to the computation of the event's trigger time. The random spread is a uniformly distributed random number taken from the interval [0:random-spread]."; } leaf cycle-interval { type uint32; units seconds; description "The optional cycle-interval defines the duration of the time interval in seconds that is used to calculate cycle numbers. No cycle number is calculated if the optional cycle-interval does not exist."; } choice event-type { description "Different types of events are handled by different branches of this choice. Note that this choice can be extended via augmentations."; case periodic { container periodic { description "A periodic timing object triggers periodically according to a regular interval."; leaf interval { type uint32 { range "1..max"; } units "seconds"; mandatory true; description "The number of seconds between two triggers generated by this periodic timing object."; } uses start-end-grouping; } } case calendar { container calendar { description "A calendar timing object triggers based on the current calendar date and time."; leaf-list month { type lmap:month-or-all; min-elements 1; description "A set of months at which this calendar timing will trigger. The wildcard means all months."; } leaf-list day-of-month { type lmap:day-of-months-or-all; min-elements 1; description "A set of days of the month at which this calendar timing will trigger. The wildcard means all days of a month."; } leaf-list day-of-week { type lmap:weekday-or-all; min-elements 1; description "A set of weekdays at which this calendar timing will trigger. The wildcard means all weekdays."; } leaf-list hour { type lmap:hour-or-all; min-elements 1; description "A set of hours at which this calendar timing will trigger. The wildcard means all hours of a day."; } leaf-list minute { type lmap:minute-or-all; min-elements 1; description "A set of minutes at which this calendar timing will trigger. The wildcard means all minutes of an hour."; } leaf-list second { type lmap:second-or-all; min-elements 1; description "A set of seconds at which this calendar timing will trigger. The wildcard means all seconds of a minute."; } leaf timezone-offset { type lmap:timezone-offset; description "The timezone in which this calendar timing object will be evaluated. If not present, the systems' local timezone will be used."; } uses start-end-grouping; } } case one-off { container one-off { description "A one-off timing object triggers exactly once."; leaf time { type yang:date-and-time; mandatory true; description "This one-off timing object triggers once at the configured date and time."; } } } case immediate { leaf immediate { type empty; mandatory true; description "This immediate event object triggers immediately when it is configured."; } } case startup { leaf startup { type empty; mandatory true; description "This startup event object triggers whenever the LMAP agent (re)starts."; } } case controller-lost { leaf controller-lost { type empty; mandatory true; description "The controller-lost event object triggers when the connectivity to the controller has been lost for at least 'controller-timeout' seconds."; } } case controller-connected { leaf controller-connected { type empty; mandatory true; description "The controller-connected event object triggers when the connectivity to the controller has been restored after it was lost for at least 'controller-timeout' seconds."; } } } } } } }