Common Control and Measurement Plane (ccamp) Internet Drafts

      
 A YANG Data Model for Optical Transport Network Topology
 
 draft-ietf-ccamp-otn-topo-yang-20.txt
 Date: 07/11/2024
 Authors: Haomian Zheng, Italo Busi, Xufeng Liu, Sergio Belotti, Oscar de Dios
 Working Group: Common Control and Measurement Plane (ccamp)
 This document defines a YANG data model for representing, retrieving, and manipulating Optical Transport Network (OTN) topologies. It is independent of control plane protocols and captures topological and resource-related information pertaining to OTN.
 A YANG Data Model for Optical Transport Network (OTN) Tunnels and Label Switched Paths
 
 draft-ietf-ccamp-otn-tunnel-model-24.txt
 Date: 01/12/2025
 Authors: Haomian Zheng, Italo Busi, Sergio Belotti, Victor Lopez, Yunbin Xu
 Working Group: Common Control and Measurement Plane (ccamp)
 This document describes the YANG data model for tunnels in OTN TE networks. The model can be used to do the configuration in order to establish the tunnel in OTN network. This work is independent with the control plane protocols.
 A YANG Data Model for Flexi-Grid Optical Networks
 
 draft-ietf-ccamp-flexigrid-yang-19.txt
 Date: 02/02/2026
 Authors: Universidad de Madrid, Daniel Burrero, Daniel King, Young Lee, Haomian Zheng
 Working Group: Common Control and Measurement Plane (ccamp)
 This document defines a YANG module for managing flexi-grid optical networks. The model defined in this document specifies a flexi-grid traffic engineering database that is used to describe the topology of a flexi-grid network. It is based on and augments existing YANG models that describe network and traffic engineering topologies.
 A YANG Data Model for L1 Connectivity Service Model (L1CSM)
 
 draft-ietf-ccamp-l1csm-yang-26.txt
 Date: 11/04/2024
 Authors: Young Lee, Kwang-koog Lee, Haomian Zheng, Oscar de Dios, Daniele Ceccarelli
 Working Group: Common Control and Measurement Plane (ccamp)
 This document provides a YANG Layer 1 Connectivity Service Model (L1CSM). This model can be utilized by a customer network controller to initiate a connectivity service request as well as to retrieve service states for a Layer 1 network controller communicating with its customer network controller. This YANG model is in compliance of Network Management Datastore Architecture (NMDA).
 A YANG data model to manage configurable DWDM optical interfaces
 
 draft-ietf-ccamp-dwdm-if-param-yang-15.txt
 Date: 02/03/2026
 Authors: Gabriele Galimberti, Dharini Hiremagalur, Gert Grammel, Roberto Manzotti, Dirk Breuer
 Working Group: Common Control and Measurement Plane (ccamp)
 This document defines a YANG model related to the Optical Transceiver parameters characterising coherent 100G and above interfaces. 100G and above Transceivers support coherent modulation, multiple modulation formats, multiple Forward Error Correction (FEC) codes including some not yet specified (or in phase of specification by) ITU-T G.698.2 or any other ITU-T recommendation. Use cases are described in RFC7698. The YANG model defined in this document can be used for Optical Parameters monitoring and/or configuration of Dense Wavelength Division Multiplexing (DWDM) interfaces. The use of this model does not guarantee interworking of DWDM transceivers. Optical path feasibility and interoperability has to be determined by tools and algorithms outside the scope of this document. The purpose of this model is to program interface parameters to consistently configure the mode of operation of transceivers.
 A YANG Data Model for Optical Impairment-aware Topology
 
 draft-ietf-ccamp-optical-impairment-topology-yang-23.txt
 Date: 27/02/2026
 Authors: Dieter Beller, Esther Le Rouzic, Sergio Belotti, Gabriele Galimberti, Italo Busi
 Working Group: Common Control and Measurement Plane (ccamp)
 In order to provision an optical connection through optical networks, a combination of path continuity, resource availability, and impairment constraints must be met to determine viable and optimal paths through the network. The determination of appropriate paths is known as Impairment-Aware Routing and Wavelength Assignment (IA-RWA) for a Wavelength Switched Optical Network (WSON), while it is known as Impairment-Aware Routing and Spectrum Assignment (IA-RSA) for a Spectrum Switched Optical Network (SSON). This document provides a YANG data model for the impairment-aware Traffic Engineering topology (TE topology) in optical networks. It augments the technology agnostic YANG Data Model for TE topologies. The topology YANG model provides read-only topology data including optical impairments that can be used for example by a Path Computation Engine (PCE) for calculating an optically feasible path for a new connection before it is established through an optical network.
 A YANG Data Model for Transport Network Client Signals
 
 draft-ietf-ccamp-client-signal-yang-17.txt
 Date: 04/02/2026
 Authors: Haomian Zheng, Aihua Guo, Italo Busi, Anton Snitser, Chaode Yu
 Working Group: Common Control and Measurement Plane (ccamp)
 A transport network is a server-layer network to provide connectivity services to its client. The topology and tunnel information in the transport layer has already been defined by generic Traffic- engineered models and technology-specific models (e.g., OTN, WSON). However, how the client signals are accessing to the network has not been described. These information is necessary to both client and provider. This draft describes how the client signals are carried over transport network and defines YANG data models which are required during configuration procedure. More specifically, several client signal (of transport network) models including ETH, STM-n, FC and so on, are defined in this draft.
 Common YANG Data Types for Layer 1 Networks
 
 draft-ietf-ccamp-layer1-types-18.txt
 Date: 23/02/2024
 Authors: Haomian Zheng, Italo Busi
 Working Group: Common Control and Measurement Plane (ccamp)
 This document defines a collection of common common data types, identities, and groupings in the YANG data modeling language. These derived common common data types, identities, and groupings are intended to be imported by modules that model Layer 1 configuration and state capabilities. The Layer 1 types are representative of Layer 1 client signals applicable to transport networks, such as Optical Transport Networks (OTN). The Optical Transport Network (OTN) data structures are included in this document as Layer 1 types.
 A YANG Data Model for Ethernet TE Topology
 
 draft-ietf-ccamp-eth-client-te-topo-yang-10.txt
 Date: 15/10/2025
 Authors: Chaode Yu, Haomian Zheng, Aihua Guo, Italo Busi, Yunbin Xu, Yang Zhao, Xufeng Liu
 Working Group: Common Control and Measurement Plane (ccamp)
 This document describes a YANG data model for Ethernet networks when used either as a client-layer network of an underlay transport network (e.g., an Optical Transport Network (OTN)) or as a transport network itself.
 Framework and Data Model for OTN Network Slicing
 
 draft-ietf-ccamp-yang-otn-slicing-11.txt
 Date: 02/03/2026
 Authors: Aihua Guo, Luis Contreras, Sergio Belotti, Reza Rokui, Yunbin Xu, Yang Zhao, Xufeng Liu
 Working Group: Common Control and Measurement Plane (ccamp)
 The requirement of slicing network resources with desired quality of service is emerging at every network technology, including the Optical Transport Networks (OTN). As a part of the transport network, OTN can provide hard pipes with guaranteed data isolation and deterministic low latency, which are highly demanded in the Service Level Agreement (SLA). This document describes a framework for OTN network slicing and defines YANG data models with OTN technology-specific augments deployed at both the north and south bound of the OTN network slice controller. Additional YANG data model augmentations will be defined in a future version of this draft.
 Common YANG Data Types for Layer 0 Optical Networks
 
 draft-ietf-ccamp-rfc9093-bis-19.txt
 Date: 03/11/2025
 Authors: Sergio Belotti, Italo Busi, Dieter Beller, Esther Le Rouzic, Aihua Guo
 Working Group: Common Control and Measurement Plane (ccamp)
 This document defines a collection of common data types, identities, and groupings in the YANG data modeling language. These common types and groupings, derived from the built-in YANG data types, identities, and groupings are intended to be imported by modules that model Optical Layer 0 configuration and state capabilities, such as Wavelength Switched Optical Networks (WSONs) and flexi-grid Dense Wavelength Division Multiplexing (DWDM) networks. This document obsoletes RFC 9093 by replacing the YANG module it contained with a new revision that includes additional YANG data types, identities and groupings.
 YANG Data Model for FlexE Management
 
 draft-ietf-ccamp-flexe-yang-cm-07.txt
 Date: 05/12/2025
 Authors: Minxue Wang, Liuyan Han, Xuesong Geng, Jin Zhou, Luis Contreras, Xufeng Liu
 Working Group: Common Control and Measurement Plane (ccamp)
 This document defines a service provider targeted YANG data model for the configuration and management of a Flex Ethernet (FlexE) network, including FlexE group and FlexE client. The YANG module in this document conforms to the Network Management Datastore Architecture (NMDA).
 A YANG Data Model for requesting Path Computation in an Optical Transport Network (OTN)
 
 draft-ietf-ccamp-otn-path-computation-yang-06.txt
 Date: 15/10/2025
 Authors: Italo Busi, Aihua Guo, Sergio Belotti
 Working Group: Common Control and Measurement Plane (ccamp)
 This document provides a mechanism to request path computation in an Optical Transport Network (OTN) by augmenting the Remote Procedure Calls (RPCs) defined in RFC YYYY. [RFC EDITOR NOTE: Please replace RFC YYYY with the RFC number of draft-ietf-teas-yang-path-computation once it has been published.
 YANG Data Models for requesting Path Computation in WDM Optical Networks
 
 draft-ietf-ccamp-optical-path-computation-yang-08.txt
 Date: 27/02/2026
 Authors: Italo Busi, Aihua Guo, Sergio Belotti
 Working Group: Common Control and Measurement Plane (ccamp)
 This document provides a mechanism to request path computation in Wavelength-Division Multiplexing (WDM) optical networks composed of Wavelength Switched Optical Networks (WSON) and Flexi-Grid Dense Wavelength Division Multiplexing (DWDM) switched technologies. This model augments the Remote Procedure Calls (RPCs) defined in RFC YYYY. [RFC EDITOR NOTE: Please replace RFC YYYY with the RFC number of draft-ietf-teas-yang-path-computation once it has been published.
 A YANG Data Model for WDM Tunnels
 
 draft-ietf-ccamp-wdm-tunnel-yang-06.txt
 Date: 20/10/2025
 Authors: Aihua Guo, Sergio Belotti, Gabriele Galimberti, Universidad de Madrid, Daniel Burrero
 Working Group: Common Control and Measurement Plane (ccamp)
 This document defines a YANG data model for the provisioning and management of Traffic Engineering (TE) tunnels and Label Switched Paths (LSPs) in Optical Networks (Wavelength Switched Optical Networks (WSON) and Flexi-Grid Dense Wavelength Division Multiplexing (DWDM) Networks). The YANG data model defined in this document conforms to the Network Management Datastore Architecture (NMDA).
 Conveying Transceiver-Related Information within RSVP-TE Signaling
 
 draft-ietf-ccamp-tsvmode-signaling-02.txt
 Date: 02/03/2026
 Authors: Julien Meuric, Esther Le Rouzic, Gabriele Galimberti, Sergio Belotti, Dieter Beller
 Working Group: Common Control and Measurement Plane (ccamp)
 The ReSource reserVation Protocol with Traffic Engineering extensions (RSVP-TE) allows to carry optical information so as to set up channels over Wavelength Division Multiplexing (WDM) networks between a pair of transceivers. Nowadays, there are many transceivers that not only support tunable lasers, but also multiple modulation formats. This memo leverages the Generalized Multiprotocol Label Switching protocol extensions to support the signaling of the associated information as a "mode" parameter within a "transceiver type" context.
 Integrating YANG Configuration and Management into an Abstraction and Control of TE Networks (ACTN) System for Optical Networks
 
 draft-ietf-ccamp-actn-optical-transport-mgmt-04.txt
 Date: 30/11/2025
 Authors: 谭艳霞, XingZhao, Chaode Yu, Daniel King, Adrian Farrel
 Working Group: Common Control and Measurement Plane (ccamp)
 Many network technologies are operated as Traffic Engineering (TE) networks. Optical networks are a particular case, and have complex technology-specific details. Abstraction and Control of TE Networks (ACTN) is a management architecture that abstracts TE network resources to provide a limited network view for customers to request and self-manage connectivity services. It also provides functional components to orchestrate and operate the network. Management of legacy optical networks is often provided via Fault, Configuration, Accounting, Performance, and Security (known as FCAPS) using mechanisms such as the Multi-Technology Operations System Interface (MTOSI) and the Common Object Request Broker Architecture (CORBA). FCAPS can form a critical part of configuration management and service assurance for network operations. However, the ACTN architecture as described in RFC 8453 does not include consideration of FCAPS. This document enhances the ACTN architecture as applied to optical networks by introducing support for FCAPS. It considers which elements of existing IETF YANG work can be used to solve existing scenarios and emerging technologies, and what new work may be needed. In doing so, this document adds rich-detail network management (RDNM) to the ACTN architecture. This enhanced architecture may then be used to evolve networks from CORBA and MTOSI FCAPS interfaces to IETF-based YANG and RESTful APIs.
 Data Modelling and Gap Analysis of Optical Pluggables in Packet Over Optical Network
 
 draft-ietf-ccamp-actn-wdm-pluggable-modelling-00.txt
 Date: 09/01/2026
 Authors: Reza Rokui, Aihua Guo, Phil Bedard, Swamynathan Balasundaram, Gert Grammel
 Working Group: Common Control and Measurement Plane (ccamp)
 This draft outlines the pluggable module attributes within a host device. It includes representations of optical pluggable module capabilities, configuration, states, and telemetry data. These attributes draws from existing IETF standards and incorporates input from other industry forums and standards, such as ITU-T, OpenConfig, OIF and ONF TAPI, to ensure uniform structuring and consistent naming conventions. Note that the IETF terminology shall be given precedence wherever possible. In case there is a duplication of an attribute, this draft may describe how the attribute is named in the related document. Only if no attribute exists in IETF RFCs or IETF WG drafts, new attributes shall be introduced if they are needed. This draft provides a gap analysis with respect to existing IETF work in the following areas: * It provides an analysis of optical attributes in a set of IETF documents with specifications of other organizations to identify modeling gaps. * It identifies modeling needs addressing the specific aspect of pluggability of transceiver modules. The authors recognize the fact that that not all pluggable modules are coherent, not all coherent pluggable modules are DWDM capable and not all DWDM capable interfaces are implemented as pluggable modules. This analysis identifies gaps to manage the lifecycle of an optical pluggable module, from operator approval and viability assessment, to deployment, monitoring and phase-out. The lifecycle of an optical pluggable module, from operator approval and viability assessment to deployment and monitoring, is also addressed. About This Document This note is to be removed before publishing as an RFC. The latest revision of this draft can be found at https://italobusi.github.io/actn-wdm-pluggable-modelling/draft-rokui- ccamp-actn-wdm-pluggable-modelling.html. Status information for this document may be found at https://datatracker.ietf.org/doc/draft-ietf- ccamp-actn-wdm-pluggable-modelling/. Discussion of this document takes place on the Common Control and Measurement Plane Working Group mailing list (mailto:ccamp@ietf.org), which is archived at https://mailarchive.ietf.org/arch/browse/ccamp/. Subscribe at https://www.ietf.org/mailman/listinfo/ccamp/. Source for this draft and an issue tracker can be found at https://github.com/italobusi/actn-wdm-pluggable-modelling.

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Common Control and Measurement Plane (ccamp)

WG Name Common Control and Measurement Plane
Acronym ccamp
Area Routing Area (rtg)
State Active
Charter charter-ietf-ccamp-09 Approved
Document dependencies
Additional resources Additional CCAMP Web Page
Issue tracker
Wiki
Zulip Stream
Personnel Chairs Daniele Ceccarelli, Fatai Zhang, Luis M. Contreras
Area Director Ketan Talaulikar
Secretary Haomian Zheng
Mailing list Address ccamp@ietf.org
To subscribe https://www.ietf.org/mailman/listinfo/ccamp
Archive https://mailarchive.ietf.org/arch/browse/ccamp/
Chat Room address https://zulip.ietf.org/#narrow/stream/ccamp

Charter for Working Group

Overview:

The Common Control and Measurement Plane (CCAMP) Working Group (WG) is responsible for standardizing a common control plane and a separate common measurement plane for non-packet technologies found in the Internet and in varied operator networks that connect to it. In this context, measurement refers to the acquisition and distribution of attributes relevant to the setting up of tunnels and paths.

Examples of devices that implement non-packet technologies in these networks include Optical Cross-Connects (OXC), Optical-Electronic-Optical (OEO) switches, Reconfigurable Optical Add-Drop Multiplexers (ROADMs), Time Division Multiplexing (TDM) switches, transponders, muxponders, optical amplifiers, routers with optical links, microwave links, and Ethernet switches.

The WG develops protocol extensions related to non-packet technologies networks, including some for routing and signaling protocols developed by other routing area WGs. The WG also defines OAM tools, network management, and operational data models for non-packet technologies, devices, and networks.

Work scope:

CCAMP WG work scope includes
- Definition of protocol-independent metrics and parameters (measurement attributes) for describing links and paths that are required for routing and signaling in non-packet technology-specific networks. These will be developed in conjunction with requests and requirements from other WGs to ensure overall usefulness.
- Maintenance and extension of the Link Management Protocol (LMP).
- Functional specification of extensions for GMPLS-related routing (OSPF, IS-IS) and signaling (RSVP-TE) protocols required for path establishment and maintenance in non-packet technology-specific networks.
- Description of non-packet-specific aspects of Traffic Engineering (TE) including for multi-area/multi-AS/multi-layer scenarios and definition of protocol extensions for them.
- Define how the properties of network resources gathered by a measurement protocol (or by other means such as configuration) can be distributed in existing routing protocols, such as OSPF, IS-IS, and BGP-LS.
- Necessary protocol extensions to support data planes standardized outside the IETF (e.g. ITU-T), where such extensions fall within the established architectural scope of the WG. This work will be performed in coordination with the relevant SDOs. The definition, modification, or evolution of the data plane itself is out of scope.
- Definition of technology-specific data models for network control and management of non-packet technology-specific networks, including network representation (from network, connection, and service perspectives) and management functionalities.
- Definition of management objects (e.g., as part YANG data models) and control of OAM techniques relevant to the protocols and extensions specified within the WG in alignment with OAM specifications developed by other WGs.
- The applicability of Abstraction and Control of TE Networks (ACTN) for non-packet technology networks.

Current Focus:

The CCAMP WG currently works on the following tasks:
- Protocol extensions in support of Wavelength Switched Optical Networks (WSONs) and Optical Transport Networks (OTNs).
- Protocol extensions in support of Flexible Grid Lambda Networks.
- Maintenance of specifications related to protocol extensions and data models for non-packet technology-specific networks (Ethernet, TDM, OTN) published by CCAMP. This includes extensions to RSVP-TE, OSPF, IS-IS, and Link Management Protocol (LMP).
- Definition of data models and management objects for network control and management of non-packet technology-specific network elements, topologies, and abstractions.
- Architectures and data models for non-packet transceivers on packet devices. This includes optical pluggables and microwave links.

Most of the document deliverables from the WG would be meant for publication as Standards Track RFCs with the exception of a few documents (e.g., architecture, framework, applicability, requirements, gap analysis, deployment considerations) for which publication may be requested as Informational RFCs.

Coordination:

The protocol extension work, especially definition of protocol formats and procedures, will be done jointly with, or through reviews from, the WGs such as LSR and TEAS WGs that maintain those base protocols (viz. OSPF, IS-IS, and RSVP-TE). The WG will coordinate with the TEAS WG on all aspects related to TE and specifically to determine whether such protocol extensions should be generalized for TE in any network. The WG will coordinate with the PCE WG when it comes to the Path Computation Element Protocol (PCEP) and path computation aspects in non-packet technology-specific networks. Data model design will be coordinated with other related WGs, such as TEAS, OPSAWG, IVY, NMOP, and GREEN.

Milestones

Date Milestone Associated documents
Jan 2028 Submit Data model for OTN end WDM path computation to IESG for publication draft-ietf-ccamp-otn-path-computation-yang
Nov 2027 Submit Data Model for Ethernet topology to IESG for publication draft-ietf-ccamp-eth-client-te-topo-yang
Oct 2027 Submit client signal YANG model to IESG for publication draft-ietf-ccamp-client-signal-yang
Jul 2027 Submit YANG Data Model for FlexE Management to IESG for publication draft-ietf-ccamp-flexe-yang-cm
Jul 2027 Submit Data Modelling and Gap Analysis of Optical Pluggables in Packet Over Optical Network to IESG for publication draft-ietf-ccamp-actn-poi-pluggable-usecases-gaps
May 2027 Submit DWDM interface LMP and YANG to IESG for publication draft-ietf-ccamp-dwdm-if-lmp
Mar 2027 Submit OTN slicing YANG model to IESG for publication draft-ietf-ccamp-yang-otn-slicing
Jan 2027 Submit OTN tunnel model to IESG for publication draft-ietf-ccamp-otn-tunnel-model
Jan 2027 Submit YANG model of OTN topology & Flexi-grid topology to IESG for publication draft-ietf-ccamp-otn-topo-yang
Oct 2026 Submit Integrating YANG Configuration and Management into an ACTN System for Optical Networks to IESG for publication draft-ietf-ccamp-actn-optical-transport-mgmt
Aug 2026 Submit T-NBI model applicability to IESG for publication draft-ietf-ccamp-transport-nbi-app-statement
Jul 2026 Adopt client signal performance monitoring YANG model working group draft
Jul 2026 Submit WDM tunnel model to IESG for publication draft-ietf-ccamp-wdm-tunnel-yang
May 2026 Submit Transceiver-Related Information within RSVP-TE Signaling to IESG for publication draft-ietf-ccamp-tsvmode-signaling
May 2026 Submit YANG modelling for flexi grid draft to IESG for publication draft-ietf-ccamp-flexigrid-yang
May 2026 Adopt YANG model of Ethernet Tunnel Working Group draft
May 2026 Submit DWDM Interface YANG model to IESG for publication draft-ietf-ccamp-dwdm-if-param-yang
May 2026 Adopt client tunnel YANG model working group draft