CCAMP Working Group C. Yu Internet-Draft Huawei Technologies Intended status: Standards Track F. Peruzzini Expires: 14 September 2023 TIM Y. Zheng China Unicom I. Busi Huawei Technologies A. Guo Futurewei Technologies 13 March 2023 A YANG Data Model for Optical Resource Performance Monitoring draft-yu-ccamp-optical-resource-pm-yang-00 Abstract This document defines a YANG data model for performance Monitoring in optical networks which provides the functionalities of performance monitoring task management, TCA (Threshold Crossing Alert) configuration and current or historic performance data retrieval. This data model should be used in the northbound of PNC. Status of This Memo This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet- Drafts is at https://datatracker.ietf.org/drafts/current/. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." This Internet-Draft will expire on 14 September 2023. Copyright Notice Copyright (c) 2023 IETF Trust and the persons identified as the document authors. All rights reserved. Yu, et al. Expires 14 September 2023 [Page 1] Internet-Draft Optical Resource Performance Monitoring March 2023 This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (https://trustee.ietf.org/ license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Revised BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Revised BSD License. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 1.1. Terminology and Notations . . . . . . . . . . . . . . . . 4 1.2. Tree Diagram . . . . . . . . . . . . . . . . . . . . . . 4 1.3. Prefix in Data Node Names . . . . . . . . . . . . . . . . 4 2. YANG Data Model for Optical Performance Monitoring . . . . . 5 2.1. Performance Management Control . . . . . . . . . . . . . 5 2.2. PerformanceManagementRetrieval . . . . . . . . . . . . . 6 2.3. Threshold Crossing Alert Control . . . . . . . . . . . . 7 2.4. Generic Resource . . . . . . . . . . . . . . . . . . . . 10 3. Performance Indicator Introduction . . . . . . . . . . . . . 11 4. Optical Performance Monitoring Tree Diagram . . . . . . . . . 11 5. YANG Model for Optical Performance Monitoring . . . . . . . . 13 6. YANG Model for Optical Performance Monitoring Types . . . . . 26 7. Manageability Considerations . . . . . . . . . . . . . . . . 29 8. Security Considerations . . . . . . . . . . . . . . . . . . . 29 9. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 29 10. References . . . . . . . . . . . . . . . . . . . . . . . . . 30 10.1. Normative References . . . . . . . . . . . . . . . . . . 30 10.2. Informative References . . . . . . . . . . . . . . . . . 31 Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . 32 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 32 1. Introduction Performance monitoring is a basic function of optical networks management. With it, operators can proactively detect the running state of devices, identify major risks in advanced and avoid users' complaints. As before, TMF has defined interfaces for performance management through traditional protocols, such as CORBA and MTOSI. With the development of SDN technologies and the using of RESTCONF interfaces, it becomes a widespread requirement to use RESTCONF protocol to support performance monitoring. Yu, et al. Expires 14 September 2023 [Page 2] Internet-Draft Optical Resource Performance Monitoring March 2023 Using RESTCONF does not mean changing existing performance monitoring requirements or scenarios. On the contrary, since O&M is very important, many operators' O&M departments tend to be conservative. Mostly, they are fear of introducing issues into their network due to the protocol changes and O&M habits changes. Therefore, our document prefers to use the new protocol to support legacy functionality. Traditional performance management involves control of performance monitoring, setting collectors on monitored objects, and obtaining performance data in different periods. The data can be current data on devices or processed by PNC, and historical performance data. TCA can be also configured by performance monitoring tasks. The explanation of performance monitoring indicator would also be an important part of this document, especially some typical optical- specific indicators. Currently, there are some existing documents related to performance monitoring in IETF, but there is no overlap with our current work. For example: [I-D.ietf-teas-actn-pm-telemetry-autonomics] provides a YANG data model that describes performance monitoring and scaling intent mechanisms for TE-Tunnels and Virtual Networks(VNs). VN is determinated to be used in CMI (CNC-MDSC Interface) level and TE tunnel is more service or connection related. Our data model is proposed to be used in MPI (MDSC-PNC Interface) level and this performance monitoring is performed on network resources, such as network element, board, fiber, port or TTP (Tunnel Termination Point), which are not included in [I-D.ietf-teas-actn-pm-telemetry-autonomics]. [I-D.ietf-opsawg-yang-vpn-service-pm] defines a YANG data model for performance monitoring of both network topology layer and overlay VPN service topology layer. VPN service is more IP-specific and not adopted in Optical domain. And the data model in this document is augmenting network model. If the client wants to retrieve performance data of a link by RESTCONF, the URL would be probably same with the URL of topology retrieval. This may need some special mechanisms to make the client and server differentiate the using scenarios. This is not quite compliance with current O&M habits of Optical technology. [I-D.zheng-ccamp-client-pm-yang] provides a performance monitoring YANG data model on client signal level. It is also not operated on resource level which is not compliance with the existing O&M habits. This performance monitoring solution is more user-oriented and can be used for more automatic O&M scenarios in the future. However, there Yu, et al. Expires 14 September 2023 [Page 3] Internet-Draft Optical Resource Performance Monitoring March 2023 is not a complete closed-loop O&M solution at the service layer and it has not been accepted by all operators' O&M departments, resource- based performance monitoring is still required. The YANG data model defined in this document conforms to the Network Management Datastore Architecture (NMDA) defined in [RFC8342]. 1.1. Terminology and Notations Refer to [RFC7446] and [RFC7581] for the key terms used in this document. The following terms are defined in [RFC7950] and are not redefined here: * client * server * augment * data model * data node The following terms are defined in [RFC6241] and are not redefined here: * configuration data * state data The following terms are defined in [RFC8454] and are not redefined here: * CMI * MPI * MDSC * CNC * PNC //To Be Added: some explanation of performance indicator 1.2. Tree Diagram A simplified graphical representation of the data model is used in Section 3 of this document. The meaning of the symbols in these diagrams are defined in [RFC8340]. 1.3. Prefix in Data Node Names In this document, names of data nodes and other data model objects are prefixed using the standard prefix associated with the corresponding YANG imported modules, as shown in the following table. +==============+================================+===========+ | Prefix | Yang Module | Reference | +==============+================================+===========+ | optrpm | ietf-optical-resource-pm | RFC XXXX | +--------------+--------------------------------+-----------+ | optrpm-types | ietf-optical-resource-pm-types | RFC XXXX | +--------------+--------------------------------+-----------+ | yang | ietf-yang-types | [RFC6991] | +--------------+--------------------------------+-----------+ Table 1: Prefixes and corresponding YANG modules RFC Editor Note: Please replace XXXX with the RFC number assigned to this document. Yu, et al. Expires 14 September 2023 [Page 4] Internet-Draft Optical Resource Performance Monitoring March 2023 2. YANG Data Model for Optical Performance Monitoring According to the business requirements stated in [TMF-518], resource performance management requirements include: * The Interface shall support the control of performance monitoring in the network. This includes PM control, e.g., the enabling and disabling of PM collection and Threshold Crossing Alerts (TCA) control, e.g., the enabling and disabling of TCA generation. * The Interface shall support the retrieval of current and historical performance measurements for network resources. * The Interface shall support the distribution of TCAs to subscribed OSs. For these requirements of PM, there are three group of interfaces are defined in TMF, including PerformanceManagementControl, PerformanceManagementRetrieval and ThresholdCrossingAlertControlm. 2.1. Performance Management Control There are three interfaces defined in TMF for this group, including: * clearPerformanceMonitoringData: This interface shall allow MDSC to clear or reset the performance register on TPs or NEs. This clearing operation means to reset the data value to the current value. The monitoring job is still running on. * disablePerformanceMonitoringData: This interface shall allow MDSC disable PM data collection on a list of TPs or NEs. * enablePerformanceMonitoringData: This interface shall allow MDSC enable PM data collection on a list of TPs or NEs. This aspect of interface we introduce a monitor task to do this control. In the monitoring task, MDSC should be able to configure what period and what kind of performance data it want to collect. The disabling, enabling operation can be satisfy by changing the admin status which includes disabled, enabled. The change's result will affect the task status accordingly. //NOTES: To be added. to support the clearPerformanceMonitoringData Yu, et al. Expires 14 September 2023 [Page 5] Internet-Draft Optical Resource Performance Monitoring March 2023 module: ietf-optical-resource-pm +--rw performance-monitoring +--rw monitor-tasks | +--rw monitor-task* [task-id] | +--rw task-id yang:uuid | +--rw resource-id? leafref | +--ro resource-type? identityref | +--rw task-name? string | +--rw admin-status? enumeration | +--ro task-status? enumeration | +--rw task-cfg | +--rw period? identityref | +--rw indicators | +--rw indicator* [indicator-name] | +--rw indicator-name string | +--rw indicator-value-unit? string 2.2. PerformanceManagementRetrieval There are six interfaces are defined in TMF for this group, including: * getAllCurrentPerformanceMonitoringData: This interface should allow MDSC to retrieve performance data on a series of termination point. * getHistoryPerformanceMonitoringData: This interface should allow MDSC to retrieve some historic performance data on a series of termination point in a time period through FTP. * getAllPerformanceMonitoringPoints: This interface should allow MDSC to retrieve all the performance monitoring points in a specified termination point or NE. * getHoldingTime: This interface should allow MDSC to retrieve how many hours PM data records are held in PNC. * getMePerformanceMonitoringCapabilities: This interface should allow MDSC to retrieve what parameters are supported by a specified NE or termination point. For the retrieval of current/historic performance data, there is one option that we define the value in the data model. But considered that performance data is frequently changed and if we follow that approach, according to the requirement of on-change notification in YANG-push [RFC8641], once the performance data changes, the PNC should trigger a notifcation to the MDSC, for the sake of data consistency. But these two retrieval interfaces is more like on- demand invoking. The interaction through notification would bring great pressure to both PNC and MDSC. And it is also hard to support retrieving performance data of multiple resources by data model. And for historic performance data retrieval, there could be a requirement to specify the start time and end time. It is not quite flexible to support this requirement by data model neither. Yu, et al. Expires 14 September 2023 [Page 6] Internet-Draft Optical Resource Performance Monitoring March 2023 So we suggest to define two RPCs to accomplish these two interfaces' function. rpcs: +---x get-all-current-pm-data | +--ro input | | +--ro resources* leafref | +--ro output | +--ro pm-data | +--ro pm-data-list* [resource] | +--ro resource leafref | +--ro collect-time? yang:date-and-time | +--ro resource-type? identityref | +--ro indicator-data | +--ro indicator-data-list* [indicator-name] | +--ro indicator-name string | +--ro indicator-value? string | +--ro indicator-value-unit? string +---x get-historic-pm-data +--ro input | +--ro resources* leafref | +--ro start-time? yang:date-and-time | +--ro end-time? yang:date-and-time +--ro output +--ro pm-data +--ro pm-data-list* [resource] +--ro resource leafref +--ro collect-time? yang:date-and-time +--ro resource-type? identityref +--ro indicator-data +--ro indicator-data-list* [indicator-name] +--ro indicator-name string +--ro indicator-value? string +--ro indicator-value-unit? string //NOTE: To be futhur analyze: getAllPerformanceMonitoringPoints, getHoldingTime, getMePerformanceMonitoringCapabilities 2.3. Threshold Crossing Alert Control There are nine interfaces are defined in TMF for this group, including: * createTcaParameterProfile: This interface should allow MDSC to create a new TCA parameter profile. This profile can be applied to the resources. * deleteTcaParameterProfile: This interface should allow MDSC to delete an existing TCA parameter profile which should not have been used by any resources. * enableThresholdCrossingAlert: This interface should allow MDSC to turn on TCA reporting on a list of TPs and NEs if the reporting was Yu, et al. Expires 14 September 2023 [Page 7] Internet-Draft Optical Resource Performance Monitoring March 2023 turned off before. * disableThresholdCrossingAlert: This interface should allow MDSC to turn off TCA reporting on a list of TPs and NEs. * getAllTcaParameterProfiles: This interfaces should allow MDSC to retrieve all TCA parameter profile that are being managed by a specified NE. * getTcaParameterProfile: This interface should allow MDSC to retrieve all the parameters of a specified TCA parameter profile. * getTcaTpParameter: This interface should allow MDSC to retrieve the PM threshold values on a TP. * setTcaParameterProfile: This interface should allow MDSC to configure all threshold values of a TCA parameter profile. * setTcaTpParameter: This interface should allow MDSC to modify the values of TCA Parameters on a TP To be summarized, there are four main requirements for Threshold Crossing Alert Control: * Creation/retrieval/deletion/updating of TCA profile; * Enabling/disabling TCA reporting on the resource; * Configuring TCA on the resource by associating an existing profile; * Configuring TCA on the resource by detailed parameters. And for the TCA parameters, no matter it is configured directly on the resource or by a preset profile, there should not be any differences. The TCA parameter (indicator) should include: * indicator-name: Name of indicator. This indicator should also include some data processing information, such if it is a maximum, or minimum, or average data .etc. * threshold-type: This threshold type is used to indicate when the alert will be triggered. By exceeding the upper bound value, or by below the lower bound value. * period: This period is used to indicate the frequency of the data collection. * severity: This severity is used to indicate what level of alert would be triggered if cross the threshold. * indicator-value: The value of threshold. * indicator-value-unit: The unit of threshold value. The tree structure for TCA profile: Yu, et al. Expires 14 September 2023 [Page 8] Internet-Draft Optical Resource Performance Monitoring March 2023 module: ietf-optical-resource-pm +--rw performance-monitoring +--rw monitor-tasks | +--rw monitor-task* [task-id] | +--rw task-id yang:uuid | +--...................... +--rw tca-management | +--rw profiles | | +--rw profile* [profile-id] | | +--rw profile-id yang:uuid | | +--rw profile-name? string | | +--rw tca-cfg | | +--rw tca-indicator* [indicator-name threshold-type period severity] | | +--rw indicator-name string | | +--rw indicator-value string | | +--rw indicator-value-unit string | | +--rw threshold-type enumeration | | +--rw period identityref | | +--rw severity identityref The function of enabling/disabling TCA on the resource can be controlled by an admin-status attributes in "tca" node: module: ietf-optical-resource-pm +--rw performance-monitoring +--rw monitor-tasks | +--rw monitor-task* [task-id] | +--rw task-id yang:uuid | +--...................... +--rw tca-management | +--rw tca* [resource-id] | +--rw resource-id leafref | +--ro resource-type? identityref | +--rw admin-status? enumeration | +--...................... If MDSC wants to configure TCA by an existing profile, it can use this applied-profiles structure: Yu, et al. Expires 14 September 2023 [Page 9] Internet-Draft Optical Resource Performance Monitoring March 2023 module: ietf-optical-resource-pm +--rw performance-monitoring +--rw monitor-tasks | +--rw monitor-task* [task-id] | +--rw task-id yang:uuid | +--...................... +--rw tca-management | +--rw tca* [resource-id] | +--rw resource-id leafref | +--ro resource-type? identityref | +--rw applied-profiles | | +--rw profile* [profile-id] | | +--rw profile-id leafref | +--...................... MDSC can also configure TCA value directly by the "tca-cfg" structure: module: ietf-optical-resource-pm +--rw performance-monitoring +--rw monitor-tasks | +--rw monitor-task* [task-id] | +--rw task-id yang:uuid | +--...................... +--rw tca-management | +--rw tca* [resource-id] | +--rw resource-id leafref | +--ro resource-type? identityref | +--...................... | +--rw tca-cfg | +--rw tca-indicator* [indicator-name threshold-type period severity] | +--rw indicator-name string | +--rw indicator-value string | +--rw indicator-value-unit string | +--rw threshold-type enumeration | +--rw period identityref | +--rw severity identityref 2.4. Generic Resource The definition of most performance monitoring interfaces in TMF is quite generic. And it is also similar that the functionalities of both alarm and performance monitoring can be defined with a generic structure, regardless of what kind of object is operated on. Therefore, our data model prefer to follow this approach. And when defining our data model, we get refer to [RFC8632], in which a generic alarm data model is provided. In [RFC8632], a union type of resource attributes is defined as the source of alarm. So we also Yu, et al. Expires 14 September 2023 [Page 10] Internet-Draft Optical Resource Performance Monitoring March 2023 reference this structure in our data model. Additionally, we extend a resource-type attribute to indicate what exact kind of resource is. Firstly, this attribute can help to improve interaction efficiency between PNC and MDSC. The MDSC may quickly identify the resource type from this attribute, without parsing the resource identifier or searching the resource id in the whole resource. On the other hand, it will be unified with the existing IETF topology and inventory objects and form a complete interface system. module: ietf-optical-resource-pm +--rw performance-monitoring +--rw resources +--rw resource* [resource-id] +--rw resource-id union +--ro resource-type? identityref 3. Performance Indicator Introduction //To Be Added 4. Optical Performance Monitoring Tree Diagram module: ietf-optical-resource-pm +--rw performance-monitoring +--rw monitor-tasks | +--rw monitor-task* [task-id] | +--rw task-id yang:uuid | +--rw resource-id? leafref | +--ro resource-type? identityref | +--rw task-name? string | +--rw admin-status? enumeration | +--ro task-status? enumeration | +--rw task-cfg | +--rw period? identityref | +--rw indicators | +--rw indicator* [indicator-name] | +--rw indicator-name string | +--rw indicator-value-unit? string +--rw tca-management | +--rw profiles | | +--rw profile* [profile-id] | | +--rw profile-id yang:uuid | | +--rw profile-name? string | | +--rw tca-cfg | | +--rw tca-indicator* [indicator-name threshold-type period severity] | | +--rw indicator-name string Yu, et al. Expires 14 September 2023 [Page 11] Internet-Draft Optical Resource Performance Monitoring March 2023 | | +--rw indicator-value string | | +--rw indicator-value-unit string | | +--rw threshold-type enumeration | | +--rw period identityref | | +--rw severity identityref | +--rw tcas | +--rw tca* [resource-id] | +--rw resource-id leafref | +--ro resource-type? identityref | +--rw admin-status? enumeration | +--rw applied-profiles | | +--rw profile* [profile-id] | | +--rw profile-id leafref | +--rw tca-cfg | +--rw tca-indicator* [indicator-name threshold-type period severity] | +--rw indicator-name string | +--rw indicator-value string | +--rw indicator-value-unit string | +--rw threshold-type enumeration | +--rw period identityref | +--rw severity identityref +--rw resources +--rw resource* [resource-id] +--rw resource-id union +--ro resource-type? identityref rpcs: +---x get-all-current-pm-data | +--ro input | | +--ro resources* leafref | +--ro output | +--ro pm-data | +--ro pm-data-list* [resource] | +--ro resource leafref | +--ro collect-time? yang:date-and-time | +--ro resource-type? identityref | +--ro indicator-data | +--ro indicator-data-list* [indicator-name] | +--ro indicator-name string | +--ro indicator-value? string | +--ro indicator-value-unit? string +---x get-historic-pm-data +--ro input | +--ro resources* leafref | +--ro start-time? yang:date-and-time | +--ro end-time? yang:date-and-time +--ro output +--ro pm-data +--ro pm-data-list* [resource] Yu, et al. Expires 14 September 2023 [Page 12] Internet-Draft Optical Resource Performance Monitoring March 2023 +--ro resource leafref +--ro collect-time? yang:date-and-time +--ro resource-type? identityref +--ro indicator-data +--ro indicator-data-list* [indicator-name] +--ro indicator-name string +--ro indicator-value? string +--ro indicator-value-unit? string Figure 1: Optical Resource Performance Monitoring tree diagram 5. YANG Model for Optical Performance Monitoring file "ietf-optical-resource-pm@2023-03-01.yang" module ietf-optical-resource-pm { yang-version 1.1; namespace "urn:ietf:params:xml:ns:yang:ietf-optical-resource-pm"; prefix optrpm; import ietf-yang-types { prefix "yang"; } import ietf-optical-resource-pm-types { prefix "optrpm-types"; } organization "IETF CCAMP Working Group"; contact "WG Web: WG List: Editor: Chaode Yu "; description "This module defines a model for optical performance monitoring. The model fully conforms to the Network Management Datastore Architecture (NMDA). Copyright (c) 2022 IETF Trust and the persons identified as authors of the code. All rights reserved. Yu, et al. Expires 14 September 2023 [Page 13] Internet-Draft Optical Resource Performance Monitoring March 2023 Redistribution and use in source and binary forms, with or without modification, is permitted pursuant to, and subject to the license terms contained in, the Revised BSD License set forth in Section 4.c of the IETF Trust's Legal Provisions Relating to IETF Documents (https://trustee.ietf.org/license-info). This version of this YANG module is part of RFC XXXX; see the RFC itself for full legal notices. The key words 'MUST', 'MUST NOT', 'REQUIRED', 'SHALL', 'SHALL NOT', 'SHOULD', 'SHOULD NOT', 'RECOMMENDED', 'NOT RECOMMENDED', 'MAY', and 'OPTIONAL' in this document are to be interpreted as described in BCP 14 (RFC 2119) (RFC 8174) when, and only when, they appear in all capitals, as shown here."; revision 2023-03-01 { description "Initial revision."; } container performance-monitoring { description "the root node."; uses monitoring-tasks-grouping; uses tca-management-grouping; uses resource-info-grouping; } grouping resource-info-grouping { description "grouping of resources' PM capabilities related information"; container resources { description "resources' PM capabilities related information"; list resource { description "list of resource instances"; key resource-id; leaf resource-id { type union { type instance-identifier { require-instance false; } Yu, et al. Expires 14 September 2023 [Page 14] Internet-Draft Optical Resource Performance Monitoring March 2023 type yang:object-identifier; type string; type yang:uuid; } } leaf resource-type { description "the type of resource, such as NE, board or port"; config false; type identityref { base optrpm-types:resource-type; } } //TO BE ADDED: holding-time, capabilities etc. } } } grouping monitoring-tasks-grouping { description "grouping of performance monitoring task"; container monitor-tasks { description "Information of PM tasks"; list monitor-task { description "monitoring task list"; key task-id; uses task-instance-grouping; } } } grouping task-instance-grouping { description "grouping of performance monitoring task. In this monitoring task, the client can specify a resource to run a monitor task and what kind of performance data need to be monitored."; leaf task-id { description Yu, et al. Expires 14 September 2023 [Page 15] Internet-Draft Optical Resource Performance Monitoring March 2023 "identifier of the performance task"; type yang:uuid; } leaf resource-id { description "the identifier of network resource on which the performance monitoring task is running"; type leafref { path "/optrpm:performance-monitoring/optrpm:resources" + "/optrpm:resource/optrpm:resource-id"; } } leaf resource-type { description "the type of resource, such as NE, board or port"; config false; type identityref { base optrpm-types:resource-type; } } leaf task-name { description "the name of monitoring task"; type string; } leaf admin-status { description "it is used to control enbling/disabling PM task"; type enumeration { enum enabled { description "it is used to enable the pm task, if the task is enabled, the task-staus should be running"; } enum disabled { description "it is used to disenable the pm task, if the task is disabled, the task-staus should be suspended"; } Yu, et al. Expires 14 September 2023 [Page 16] Internet-Draft Optical Resource Performance Monitoring March 2023 } } leaf task-status { config false; description "the status of monitoring task."; type enumeration { enum running; enum suspended; enum abnormal; } } uses task-configuration-grouping; } grouping task-configuration-grouping { description "grouping of pm task configuration"; container task-cfg { description "Configuration of the monitoring task"; leaf period { description "it is used to indicate the interval as per monitoring task"; type identityref { base optrpm-types:period; } } container indicators { description "performance indicators"; list indicator { description "list of PM indicators to be monitored"; key indicator-name; uses indicator-grouping; } Yu, et al. Expires 14 September 2023 [Page 17] Internet-Draft Optical Resource Performance Monitoring March 2023 } } } grouping indicator-grouping { description "grouping of a monitoring indicator instance"; leaf indicator-name { description "performance indicator's name"; type string; } leaf indicator-value-unit { description "unit of indicator value"; type string; } } grouping tca-management-grouping { description "grouping of configuration and management for Threshol Crossing Alert"; container tca-management { description "configuration and management for Threshol Crossing Alert"; container profiles { description "the TCA profile in the whole network"; list profile { description "List of TCA profile instances"; key "profile-id"; uses tca-profile-grouping; } } container tcas { description "TCA configuration on the network resources."; Yu, et al. Expires 14 September 2023 [Page 18] Internet-Draft Optical Resource Performance Monitoring March 2023 list tca { description "List of TCA configuration instances"; key "resource-id"; leaf resource-id { description "the identifier of network resource on which threshold is configured for TCA purpose"; type leafref { path "/optrpm:performance-monitoring/optrpm:resources" + "/optrpm:resource/optrpm:resource-id"; } } leaf resource-type { description "the type of resource, such as NE, board or termination point"; config false; type identityref { base optrpm-types:resource-type; } } leaf admin-status { description "it is used to control the validity of threshold"; type enumeration { enum enabled { description "if the admin-status of TCA configuration is enabled, the threshold is effective"; } enum disabled { description "if the admin-status of TCA configuration is disabled, the threshold is not effective"; } } } uses tca-grouping; Yu, et al. Expires 14 September 2023 [Page 19] Internet-Draft Optical Resource Performance Monitoring March 2023 } } } } grouping tca-profile-grouping { description "grouping of TCA profile instance"; leaf profile-id { description "identifier of threshold crossing alerrt profile"; type yang:uuid; } leaf profile-name { description "Name of the threshold crossing alerrt profile"; type string; } container tca-cfg { description "detailed TCA configuration in a profile"; list tca-indicator { description "list of TCA configuration."; key "indicator-name threshold-type period severity"; uses tca-indicator-grouping; } } } grouping tca-indicator-grouping { description "grouping for detail TCA configuration"; leaf indicator-name { type string; description "name of the indicator"; } leaf indicator-value { mandatory true; Yu, et al. Expires 14 September 2023 [Page 20] Internet-Draft Optical Resource Performance Monitoring March 2023 type string; description "treshold value of the indicator"; } leaf indicator-value-unit { mandatory true; type string; description "unit of indicator's value"; } leaf threshold-type { description "it is used to indicate the trigger/clearing condition of alert upon the threshold"; type enumeration { enum upperbound-trigger { description "If the performace data exceeds this threshold value, a TCA will be triggered"; } enum lowerbound-trigger { description "if the performace data is lower than this threshold value, a TCA will be triggered"; } enum upperbound-clear { description "If the performance data is not longer bigger than this threshold value, the TCA triggered before will be cleared by system automatically"; } enum lowerbound-clear { description "If the performance data is not longer lower than this threshold value, the TCA triggered before will be cleared by system automatically"; } } } leaf period { description "it is used to indicate the interval as per monitoring task"; type identityref { Yu, et al. Expires 14 September 2023 [Page 21] Internet-Draft Optical Resource Performance Monitoring March 2023 base optrpm-types:period; } } leaf severity { description "it is used to indicate what severity level of alert would be triggered if not confirms to the threashold"; type identityref { base optrpm-types:severity; } } } grouping tca-grouping { description "grouping of TCA configuration"; container applied-profiles { description "Information of applied TCA profiles on this resource"; list profile { description "list of applied TCA profile"; key "profile-id"; leaf profile-id { description "identifier of the applied TCA profile"; type leafref { path "../../../../../optrpm:profiles/optrpm:profile" + "/optrpm:profile-id"; } } } } container tca-cfg { description "detailed configuration of TCA"; list tca-indicator { description "list of tca indicator configuration"; key "indicator-name threshold-type period severity"; uses tca-indicator-grouping; Yu, et al. Expires 14 September 2023 [Page 22] Internet-Draft Optical Resource Performance Monitoring March 2023 } } } rpc get-all-current-pm-data { description "this RPC is used to retrieve current performance data."; input { leaf-list resources { description "the identifier of resources from which current performace data is collected"; type leafref { path "/optrpm:performance-monitoring/optrpm:resources" + "/optrpm:resource/optrpm:resource-id"; } } } output { container pm-data { description "result of current performance data"; list pm-data-list { description "list of curent performance data"; key resource; uses pm-data-instance-grouping; } } } } rpc get-historic-pm-data { input { description "this RPC is used to retrieve historic performance data."; leaf-list resources { description "the identifier of resources from which historic performace data is collected"; type leafref { Yu, et al. Expires 14 September 2023 [Page 23] Internet-Draft Optical Resource Performance Monitoring March 2023 path "/optrpm:performance-monitoring/optrpm:resources" + "/optrpm:resource/optrpm:resource-id"; } } leaf start-time { description "the starttime of performance data needed to be retrieved"; type yang:date-and-time; } leaf end-time { description "the endtime of performance data needed to be retrieved"; type yang:date-and-time; } } output { container pm-data { description "result of historic performance data"; list pm-data-list { description "list of historic performance data"; key resource; uses pm-data-instance-grouping; } } } } grouping pm-data-instance-grouping { description "grouping for common attributes of performance data"; leaf resource { description "the identifier of network resource which is monitored."; type leafref { path "/optrpm:performance-monitoring/optrpm:resources" + "/optrpm:resource/optrpm:resource-id"; } } Yu, et al. Expires 14 September 2023 [Page 24] Internet-Draft Optical Resource Performance Monitoring March 2023 leaf collect-time { description "the time of this data is collected"; type yang:date-and-time; } leaf resource-type { description "the type of resource, such as NE, board or port"; type identityref { base optrpm-types:resource-type; } } container indicator-data { description "grouping for historic performance data"; list indicator-data-list { description "list of historic performance data"; key indicator-name; uses indicator-data-instance-grouping; } } } grouping indicator-data-instance-grouping { description "grouping for a performance data"; leaf indicator-name { description "name of performance data indicator"; type string; } leaf indicator-value { description "value of performance data"; type string; } Yu, et al. Expires 14 September 2023 [Page 25] Internet-Draft Optical Resource Performance Monitoring March 2023 leaf indicator-value-unit { description "unit of performance data value"; type string; } } } Figure 2: Optical Resource Performance Monitoring YANG module 6. YANG Model for Optical Performance Monitoring Types file "ietf-optical-resource-pm-types@2023-03-01.yang" module ietf-optical-resource-pm-types { yang-version 1.1; namespace "urn:ietf:params:xml:ns:yang:ietf-optical-resource-pm-types"; prefix optrpm-types; organization "IETF CCAMP Working Group"; contact "WG Web: WG List: Editor: Chaode Yu "; description "This module defines types model for optical performance monitoring which will be imported by ietf-performance-monitoring data model. The model fully conforms to the Network Management Datastore Architecture (NMDA). Copyright (c) 2022 IETF Trust and the persons identified as authors of the code. All rights reserved. Redistribution and use in source and binary forms, with or without modification, is permitted pursuant to, and subject to the license terms contained in, the Revised BSD License set forth in Section 4.c of the IETF Trust's Legal Provisions Relating to IETF Documents Yu, et al. Expires 14 September 2023 [Page 26] Internet-Draft Optical Resource Performance Monitoring March 2023 (https://trustee.ietf.org/license-info). This version of this YANG module is part of RFC XXXX; see the RFC itself for full legal notices. The key words 'MUST', 'MUST NOT', 'REQUIRED', 'SHALL', 'SHALL NOT', 'SHOULD', 'SHOULD NOT', 'RECOMMENDED', 'NOT RECOMMENDED', 'MAY', and 'OPTIONAL' in this document are to be interpreted as described in BCP 14 (RFC 2119) (RFC 8174) when, and only when, they appear in all capitals, as shown here."; revision 2023-03-01 { description "Initial revision."; } identity resource-type { description "this is the base type of all the rerource type"; } identity network-element { base resource-type; description "NE resource type"; } identity board { base resource-type; description "board resource type"; } identity termination-point { base resource-type; description "Termination point resource"; } identity tunnel-termination-point { base resource-type; description "Tunnel termination point resource"; } identity period { description "this is the base type of all the performace monitoring priod type."; } identity period-15-minutes { Yu, et al. Expires 14 September 2023 [Page 27] Internet-Draft Optical Resource Performance Monitoring March 2023 base period; description "the during of monitoring task will be repeated at every 15 minutes"; } identity period-24-hours { base period; description "the during of monitoring task will be repeated at every 24 hours"; } identity severity { description "it is used to indicate what severity alarm will be caused if exceeds the threshold"; } identity critical { description "critical alarm will be caused if exceeds the threshold"; base severity; } identity mayjor { description "mayjor alarm will be caused if exceeds the threshold"; base severity; } identity minor { description "minor alarm will be caused if exceeds the threshold"; base severity; } identity warning { description "only a warning will be caused if exceeds the threshold"; base severity; } } Figure 3: Optical Resource Performance Monitoring Types YANG module Yu, et al. Expires 14 September 2023 [Page 28] Internet-Draft Optical Resource Performance Monitoring March 2023 7. Manageability Considerations 8. Security Considerations The YANG module specified in this document defines a schema for data that is designed to be accessed via network management protocols such as NETCONF [RFC6241] or RESTCONF [RFC8040]. The lowest NETCONF layer is the secure transport layer, and the mandatory-to-implement secure transport is Secure Shell (SSH) [RFC6242]. The lowest RESTCONF layer is HTTPS, and the mandatory-to-implement secure transport is TLS [RFC8446]. The NETCONF access control model [RFC8341] provides the means to restrict access for particular NETCONF or RESTCONF users to a preconfigured subset of all available NETCONF or RESTCONF protocol operations and content. There are a number of data nodes defined in this YANG module that are writable/creatable/deletable (i.e., config true, which is the default). These data nodes may be considered sensitive or vulnerable in some network environments. Write operations (e.g., edit-config) to these data nodes without proper protection can have a negative effect on network operations. Considerations in Section 8 of [RFC8795]are also applicable to their subtrees in the module defined in this document. Some of the readable data nodes in this YANG module may be considered sensitive or vulnerable in some network environments. It is thus important to control read access (e.g., via get, get-config, or notification) to these data nodes. Considerations in Section 8 of [RFC8795] are also applicable to their subtrees in the module defined in this document. 9. IANA Considerations This document registers following YANG modules in the YANG Module Names registry [RFC6020]. name: ietf-optical-resource-pm namespace: urn:ietf:params:xml:ns:yang:ietf-optical-resource-pm prefix: optrpm reference: RFC XXXX: A YANG Data Model for Optical Performance Monitoring Yu, et al. Expires 14 September 2023 [Page 29] Internet-Draft Optical Resource Performance Monitoring March 2023 name: ietf-optical-resource-pm-types namespace: urn:ietf:params:xml:ns:yang:ietf-optical-resource-pm-types prefix: optrpm-types reference: RFC XXXX: A YANG Data Model for Optical Performance Monitoring 10. References 10.1. Normative References [RFC6020] Bjorklund, M., Ed., "YANG - A Data Modeling Language for the Network Configuration Protocol (NETCONF)", RFC 6020, DOI 10.17487/RFC6020, October 2010, . [RFC6241] Enns, R., Ed., Bjorklund, M., Ed., Schoenwaelder, J., Ed., and A. Bierman, Ed., "Network Configuration Protocol (NETCONF)", RFC 6241, DOI 10.17487/RFC6241, June 2011, . [RFC6242] Wasserman, M., "Using the NETCONF Protocol over Secure Shell (SSH)", RFC 6242, DOI 10.17487/RFC6242, June 2011, . [RFC6991] Schoenwaelder, J., Ed., "Common YANG Data Types", RFC 6991, DOI 10.17487/RFC6991, July 2013, . [RFC7446] Lee, Y., Ed., Bernstein, G., Ed., Li, D., and W. Imajuku, "Routing and Wavelength Assignment Information Model for Wavelength Switched Optical Networks", RFC 7446, DOI 10.17487/RFC7446, February 2015, . [RFC7581] Bernstein, G., Ed., Lee, Y., Ed., Li, D., Imajuku, W., and J. Han, "Routing and Wavelength Assignment Information Encoding for Wavelength Switched Optical Networks", RFC 7581, DOI 10.17487/RFC7581, June 2015, . [RFC7950] Bjorklund, M., Ed., "The YANG 1.1 Data Modeling Language", RFC 7950, DOI 10.17487/RFC7950, August 2016, . [RFC8040] Bierman, A., Bjorklund, M., and K. Watsen, "RESTCONF Protocol", RFC 8040, DOI 10.17487/RFC8040, January 2017, . Yu, et al. Expires 14 September 2023 [Page 30] Internet-Draft Optical Resource Performance Monitoring March 2023 [RFC8340] Bjorklund, M. and L. Berger, Ed., "YANG Tree Diagrams", BCP 215, RFC 8340, DOI 10.17487/RFC8340, March 2018, . [RFC8341] Bierman, A. and M. Bjorklund, "Network Configuration Access Control Model", STD 91, RFC 8341, DOI 10.17487/RFC8341, March 2018, . [RFC8342] Bjorklund, M., Schoenwaelder, J., Shafer, P., Watsen, K., and R. Wilton, "Network Management Datastore Architecture (NMDA)", RFC 8342, DOI 10.17487/RFC8342, March 2018, . [RFC8446] Rescorla, E., "The Transport Layer Security (TLS) Protocol Version 1.3", RFC 8446, DOI 10.17487/RFC8446, August 2018, . [RFC8795] Liu, X., Bryskin, I., Beeram, V., Saad, T., Shah, H., and O. Gonzalez de Dios, "YANG Data Model for Traffic Engineering (TE) Topologies", RFC 8795, DOI 10.17487/RFC8795, August 2020, . [TMF-518] TM Forum (TMF), "Resource Performance Management", TMF518_RPM , 2011, . 10.2. Informative References [I-D.ietf-opsawg-yang-vpn-service-pm] Wu, B., Wu, Q., Boucadair, M., de Dios, O. G., and B. Wen, "A YANG Model for Network and VPN Service Performance Monitoring", Work in Progress, Internet-Draft, draft-ietf- opsawg-yang-vpn-service-pm-15, 11 November 2022, . [I-D.ietf-teas-actn-pm-telemetry-autonomics] Lee, Y., Dhody, D., Vilalta, R., King, D., and D. Ceccarelli, "YANG models for Virtual Network (VN)/TE Performance Monitoring Telemetry and Scaling Intent Autonomics", Work in Progress, Internet-Draft, draft-ietf- teas-actn-pm-telemetry-autonomics-09, 11 July 2022, . Yu, et al. Expires 14 September 2023 [Page 31] Internet-Draft Optical Resource Performance Monitoring March 2023 [I-D.zheng-ccamp-client-pm-yang] Zheng, H., Busi, I., Yanlei, Z., Lopez, V., and O. G. de Dios, "A YANG Data Model for Client Signal Performance Monitoring", Work in Progress, Internet-Draft, draft- zheng-ccamp-client-pm-yang-07, 9 January 2023, . [RFC8454] Lee, Y., Belotti, S., Dhody, D., Ceccarelli, D., and B. Yoon, "Information Model for Abstraction and Control of TE Networks (ACTN)", RFC 8454, DOI 10.17487/RFC8454, September 2018, . [RFC8632] Vallin, S. and M. Bjorklund, "A YANG Data Model for Alarm Management", RFC 8632, DOI 10.17487/RFC8632, September 2019, . [RFC8641] Clemm, A. and E. Voit, "Subscription to YANG Notifications for Datastore Updates", RFC 8641, DOI 10.17487/RFC8641, September 2019, . Acknowledgments This document was prepared using kramdown. Authors' Addresses Chaode Yu Huawei Technologies Email: yuchaode@huawei.com Fabio Peruzzini TIM Email: fabio.peruzzini@telecomitalia.it Yanlei Zheng China Unicom Email: zhengyanlei@chinaunicom.cn Italo Busi Huawei Technologies Email: italo.busi@huawei.com Yu, et al. Expires 14 September 2023 [Page 32] Internet-Draft Optical Resource Performance Monitoring March 2023 Aihua Guo Futurewei Technologies Email: aihuaguo.ietf@gmail.com Yu, et al. 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