CCAMP Working Group G. Fioccola (Ed.) Telecom Italia Internet Draft K. Lee Intended Status: Standard Track Korea Telecom Expires: March 1, 2019 Y. Lee (Ed.) D. Dhody Huawei O. Gonzalez de-Dios Telefonica D. Ceccarelli Ericsson August 30, 2018 A Yang Data Model for L1 Connectivity Service Model (L1CSM) draft-ietf-ccamp-l1csm-yang-07 Abstract This document provides a YANG data model for Layer 1 Connectivity Service Model (L1CSM). This YANG model is NMDA-compliant. Status of this Memo This Internet-Draft is submitted to IETF in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet- Drafts. 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." The list of current Internet-Drafts can be accessed at http://www.ietf.org/ietf/1id-abstracts.txt The list of Internet-Draft Shadow Directories can be accessed at http://www.ietf.org/shadow.html This Internet-Draft will expire on March 1 2019. Copyright Notice Fioccola et al. Expires March 2019 [Page 1] Internet-Draft L1CSM YANG Model August 2018 Copyright (c) 2018 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (http://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 Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Table of Contents 1. Introduction...................................................2 1.1. Deployment Scenarios......................................3 1.2. Terminology...............................................6 1.3. Tree diagram..............................................6 1.4. Prefixes in Data Node Names...............................7 2. Definitions....................................................7 3. L1SM YANG Model (Tree Structure)...............................7 4. L1SM YANG Code.................................................8 5. JSON Example..................................................20 6. Security Considerations.......................................21 7. IANA Considerations...........................................22 8. Acknowledgments...............................................23 9. References....................................................24 9.1. Normative References.....................................24 9.2. Informative References...................................24 10. Contributors.................................................25 Authors' Addresses...............................................25 1. Introduction This document provides a YANG data model for L1VPN Connectivity Service Model (L1CSM). The intent of this document is to provide a transport service model exploiting Yang data model, which can be utilized by a client network controller to initiate a service request connectivity request as well as retrieving service states toward a transport network controller communicating with the client controller via a NETCONF [RFC8341] or a RESTCONF [RFC8040] interface. [RFC4847] provides a framework and service level requirements for Layer 1 Virtual Private Networks (L1VPNs). It classifies service Fioccola, et al. Expires March 2019 [Page 2] Internet-Draft L1CSM YANG Model August 2018 models as management-based service model, signaling-based service model (Basic Mode) and signaling and routing service model (Enhanced Mode). In the management-based service model, customer management systems and provider management systems communicate with each other. Customer management systems access provider management systems to request layer 1 connection setup/deletion between a pair of CEs. Customer management systems may obtain additional information, such as resource availability information and monitoring information, from provider management systems. There is no control message exchange between a CE and PE. In the signaling-based service model (Basic Model), the CE-PE interface's functional repertoire is limited to path setup signaling only. In the Signaling and routing service model (Enhanced Mode), the CE-PE interface provides the signaling capabilities as in the Basic Mode, plus permits limited exchange of information between the control planes of the provider and the customer to help such functions as discovery of customer network routing information (i.e., reachability or TE information in remote customer sites), or parameters of the part of the provider's network dedicated to the customer. The primary focus of this document is to describe L1CS YANG model required for the instantiation of point-to-point L1VPN service. A L1VPN is a service offered by a core layer 1 network to provide layer 1 connectivity between two or more customer sites where the customer has some control over the establishment and type of the connectivity. The data model presented in Section 3 is in consistent with [MEF- L1CS]. The data model includes configuration and state data according to the new Network Management Datastore Architecture [RFC8342]. 1.1. Deployment Scenarios Figure 1 depicts a deployment scenario of the L1VPN SDN control- based service model for an external customer instantiating L1 point- to-point connectivity to the provider. Fioccola, et al. Expires March 2019 [Page 3] Internet-Draft L1CSM YANG Model August 2018 +------------+ | Customer | | Service | |Orchestrator| +------------+ | .. .. .. .. ..|.. .. .. .. .. : | : : +--------------------+ : : | | : : | +----------+ | : : | | Network | | : : | | SDN | | : : | |Controller| | : : | |/NMS/EMS | | : : | +----------+ | : : | | : : | | : +----+ : +----+ +----+ +----+ : +----+ | CE |----:---| PE |----| P |----| PE |---:---| CE | +----+ : +----+ +----+ +----+ : +----+ : | | : : | | : : +--------------------+ : : | | : : |<-Provider network->| : Customer Customer Interface Interface Figure 1: L1VPN SDN Controller/EMS/NMS-Based Service Model: External Customer With this scenario, the customer service orchestrator interfaces with the network SDN controller of the provider using Customer Service Model as defined in [RFC8309]. Figure 2 depicts another deployment scenario for internal customer (e.g., higher-layer service management department(s)) interfacing the layer 1 transport network department. With this scenario, a multi-service backbone is characterized such that each service Fioccola, et al. Expires March 2019 [Page 4] Internet-Draft L1CSM YANG Model August 2018 department of a provider (e.g., L2/3 services) that receives the same provider's L1VPN service provides a different kind of higher- layer service. The customer receiving the L1VPN service (i.e., each service department) can offer its own services, whose payloads can be any layer (e.g., ATM, IP, TDM). The layer 1 transport network and each service network belong to the same organization, but may be managed separately. The Service SDN Controller is the control/management entity owned by higher-layer service department (e.g., L2/3 VPN) whereas the Network SDN Controller is the control/management entity responsible for Layer 1 connectivity service. The CE's in Figure 2 are L2/3 devices that interface with L1 PE devices. +----------+ | Service | | SDN | |Controller| |/EMS/NMS | | for L2/3 | +----------+ | | | +--------------------+ | | | +----------+ | | | Network | | | | SDN | | | |Controller| | | |/EMS/NMS | | | | for L1VPN| | | +----------+ | | | | | +----+ +----+ +----+ +----+ +----+ | CE |--------| PE |----| P |----| PE |------| CE | +----+ +----+ +----+ +----+ +----+ | | | | | | | | | +--------------------+ | | | | | | |<------------------>| | | Provider Network | | For Layer 1 | |<------------------------------------------>| Provider Network for L2/3 Fioccola, et al. Expires March 2019 [Page 5] Internet-Draft L1CSM YANG Model August 2018 Figure 2: L1VPN SDN Controller/EMS/NMS-Based Service Model: Internal Customer The benefit is that the same layer 1 transport network resources are shared by multiple services. A large capacity backbone network (data plane) can be built economically by having the resources shared by multiple services usually with flexibility to modify topologies, while separating the control functions for each service department. Thus, each customer can select a specific set of features that are needed to provide their own service [RFC4847]. 1.2. Terminology Refer to [RFC4847] and [RFC5253] for the key terms used in this document. The following terms are defined in [RFC7950] and are not redefined here: o client o server o augment o data model o data node The following terms are defined in [RFC6241] and are not redefined here: o configuration data o state data The terminology for describing YANG data models is found in [RFC7950]. 1.3. Tree diagram A simplified graphical representation of the data model is used in chapter 3 of this this document. The meaning of the symbols in these diagrams is defined in [RFC8340]. Fioccola, et al. Expires March 2019 [Page 6] Internet-Draft L1CSM YANG Model August 2018 1.4. Prefixes 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 Table 1. +---------+------------------------------+-----------------+ | Prefix | YANG module | Reference | +---------+------------------------------+-----------------+ | l1csm | ietf-l1cms | [RFC XXXX] | | l1-st | ietf-l1-service-types | [RFC XXXX] | | yang | ietf-yang-types | [RFC6991] | +---------+------------------------------+-----------------+ Table 1: Prefixes and corresponding YANG modules Note: The RFC Editor will replace XXXX with the number assigned to the RFC once this draft becomes an RFC. 2. Definitions L1VC Layer 1 Virtual Connection SLS Service Level Specification UNI User Network Interface PE Provider Edge CE Customer Edge EP End Point P Protocol C Coding O Optical Interface 3. L1SM YANG Model (Tree Structure) module: ietf-l1csm +--rw l1cs +--rw access | +--rw uni-list* [UNI-ID] Fioccola, et al. Expires March 2019 [Page 7] Internet-Draft L1CSM YANG Model August 2018 | +--rw UNI-ID string | +--rw protocol? identityref | +--rw coding? identityref | +--rw optical_interface? identityref +--rw service +--rw service-list* [subscriber-l1vc-id] +--rw subscriber-l1vc-id string +--rw service-config +--rw subscriber-l1vc-id? string +--rw subscriber-l1vc-ep-id-1? string +--rw subscriber-l1vc-ep-id-2? string +--rw subscriber-l1vc-ep-UNI-1? -> /l1cs/access/uni-list/UNI-ID +--rw subscriber-l1vc-ep-UNI-2? -> /l1cs/access/uni-list/UNI-ID +--rw time-start? yang:date-and-time +--rw time-interval? Int32 +--rw performance-metric? Identityref 4. L1SM YANG Code The YANG code is as follows: file "ietf-l1csm@2018-08-30.yang" module ietf-l1csm { yang-version 1.1; namespace "urn:ietf:params:xml:ns:yang:ietf-l1csm"; prefix "l1csm"; import ietf-yang-types { prefix "yang"; } import ietf-l1-service-types { prefix "l1-st"; } organization "Internet Engineering Task Force (IETF) CCAMP WG"; contact "Editor: G. Fioccolla (giuseppe.fioccola@telecomitalia.it) Editor: K. Lee (kwangkoog.lee@kt.com) Editor: Y. Lee (leeyoung@huawei.com) Editor: D. Dhody (dhruv.ietf@gmail.com) Fioccola, et al. Expires March 2019 [Page 8] Internet-Draft L1CSM YANG Model August 2018 Editor: O. G. de-Dios (oscar.gonzalezdedios@telefonica.com) Editor: D. Ceccarelli (daniele.ceccarelli@ericsson.com)"; description "This module describes L1 connectivity service based on MEF 63: Subscriber Layer 1 Service Attribute Technical Specification. Refer to MEF 63 for all terms and the original references used in the module. Copyright (c) 2018 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 Simplified BSD License set forth in Section 4.c of the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info). This version of this YANG module is part of RFC XXXX; see the RFC itself for full legal notices."; revision "2018-08-30" { description "Initial revision."; reference "RFC XXXX: A Yang Data Model for L1 Connectivity Service Model (L1CSM)"; // Note: The RFC Editor will replace XXXX with the number // assigned to the RFC once this draft becomes an RFC. } grouping protocol-coding-optical_interface { description "describes where p:protocol type; c:coding function; o:optical interface function"; leaf protocol { type identityref { base "l1-st:protocol-type"; } description "List of physical layer L1VC clientprotocol"; } leaf coding { type identityref { base "l1-st:coding-func"; Fioccola, et al. Expires March 2019 [Page 9] Internet-Draft L1CSM YANG Model August 2018 } description "coding function"; } leaf optical_interface { type identityref { base "l1-st:optical-interface-func"; } description "optical-interface-function"; } } grouping uni-attributes { description "uni-service-attributes"; leaf UNI-ID { type string; description "the UNI id of UNI Service Attributes"; } uses protocol-coding-optical_interface; } grouping subscriber-l1vc-sls-service-attribute { description "The value of the Subscriber L1VC SLS (Service Level Specification) Service Attribute expressed in a 3-tuple of the form."; leaf time-start { type yang:date-and-time; description "a time that represent the date and time for the start of the SLS"; } leaf time-interval { type int32; units seconds; description "a time interval (e.g., 2,419,200 seconds which is 28 days) that is used in conjunction wuth time-start to specify a contiguous sequence of time intervals T for determining when performance objectives are met."; Fioccola, et al. Expires March 2019 [Page 10] Internet-Draft L1CSM YANG Model August 2018 } leaf performance-metric { type identityref { base "l1-st:performance-metriclist"; } description "list of performance metric"; } } grouping subscriber-l1vc-service-attributes { description "subscriber layer 1 connection service service level"; leaf subscriber-l1vc-id { type string; description "subscriber L1VC identifier"; } leaf subscriber-l1vc-ep-id-1 { type string; description "subscriber end point ID of one end"; } leaf subscriber-l1vc-ep-id-2 { type string; description "subscriber end point ID of the other end"; } leaf subscriber-l1vc-ep-UNI-1 { type leafref { path "/l1cs/access/uni-list/UNI-ID"; } description "this is one end of subscriber L1VC end point ID value = UNI-1"; } leaf subscriber-l1vc-ep-UNI-2 { type leafref { path "/l1cs/access/uni-list/UNI-ID"; } description "this is the other end of subscriber L1VC end point ID value = UNI-2"; } Fioccola, et al. Expires March 2019 [Page 11] Internet-Draft L1CSM YANG Model August 2018 uses subscriber-l1vc-sls-service-attribute; } grouping subscriber-attributes { description "subscriber attributes"; uses subscriber-l1vc-service-attributes; } container l1cs { description "serves as a top-level container for a list of layer 1 connection services (l1cs)"; container access { description "UNI configurations"; list uni-list { key "UNI-ID"; description "uni identifier"; uses uni-attributes { description "UNI attributes information"; } } } container service { description "L1VC service"; list service-list { key "subscriber-l1vc-id"; description "an unique identifier of a service"; leaf subscriber-l1vc-id { type string; description "a unique service identifier for L1VC."; } container service-config { description "service-config container"; uses subscriber-attributes; }//end of service-config }//end of service list } //end of service container Fioccola, et al. Expires March 2019 [Page 12] Internet-Draft L1CSM YANG Model August 2018 }//service top container } file "ietf-l1-service-types@2018-08-30.yang" module ietf-l1-service-types { namespace "urn:ietf:params:xml:ns:yang:ietf-l1-service-types"; prefix "l1-st"; organization "IETF CCAMP Working Group"; contact "WG Web: WG List: Editor: G. Fioccolla(giuseppe.fioccola@telecomitalia.it) Editor: K. Lee (kwangkoog.lee@kt.com) Editor: Y. Lee (leeyoung@huawei.com) Editor: D. Dhody (dhruv.ietf@gmail.com) Editor: O. G. de-Dios(oscar.gonzalezdedios@telefonica.com) Editor: D. Ceccarelli(daniele.ceccarelli@ericsson.com)"; description "This module defines L1 service types based on MEF 63: Subscriber Layer 1 Service Attribute Technical Specification. Refer to MEF 63 for all terms and the original references used in the module. As for the protocol-type, refer also to the client-type in G.709. Copyright (c) 2018 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 Simplified BSD License set forth in Section 4.c of the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info). This version of this YANG module is part of RFC XXXX; see the RFC itself for full legal notices."; revision "2018-08-30" { description "Initial revision."; reference "RFC XXXX: A Yang Data Model for L1 Connectivity Service Model (L1CSM)"; // Note: The RFC Editor will replace XXXX with the number Fioccola, et al. Expires March 2019 [Page 13] Internet-Draft L1CSM YANG Model August 2018 // assigned to the RFC once this draft becomes an RFC. } identity protocol-type { description "base identity from which client protocol type is derived."; } identity ETH-1GbE { base "protocol-type"; description "GigE protocol type"; reference "MEF63 & G.709"; } identity ETH-10GbE-WAN { base "protocol-type"; description "10GigE-WAN protocol type"; reference "MEF63 & G.709"; } identity ETH-10GbE-LAN { base "protocol-type"; description "10GigE-LAN protocol type"; reference "MEF63 & G.709"; } identity ETH-40GbE { base "protocol-type"; description "40GigE protocol type"; reference "MEF63 & G.709"; } identity ETH-100GbE { base "protocol-type"; description "100GigE protocol type"; reference "MEF63 & G.709"; } identity FC-100 { base "protocol-type"; description "Fiber Channel - 100 protocol type"; reference "MEF63 & G.709"; Fioccola, et al. Expires March 2019 [Page 14] Internet-Draft L1CSM YANG Model August 2018 } identity FC-200 { base "protocol-type"; description "Fiber Channel - 200 protocol type"; reference "MEF63 & G.709"; } identity FC-400 { base "protocol-type"; description "Fiber Channel - 400 protocol type"; reference "MEF63 & G.709"; } identity FC-800 { base "protocol-type"; description "Fiber Channel - 800 protocol type"; reference "MEF63 & G.709"; } identity FC-1200 { base "protocol-type"; description "Fiber Channel - 1200 protocol type"; reference "MEF63 & G.709"; } identity FC-1600 { base "protocol-type"; description "Fiber Channel - 1600 protocol type"; reference "MEF63 & G.709"; } identity FC-3200 { base "protocol-type"; description "Fiber Channel - 3200 protocol type"; reference "MEF63 & G.709"; } identity STM-1 { base "protocol-type"; description "SDH STM-1 protocol type"; reference "MEF63 & G.709"; Fioccola, et al. Expires March 2019 [Page 15] Internet-Draft L1CSM YANG Model August 2018 } identity STM-4 { base "protocol-type"; description "SDH STM-4 protocol type"; reference "MEF63 & G.709"; } identity STM-16 { base "protocol-type"; description "SDH STM-16 protocol type"; reference "MEF63 & G.709"; } identity STM-64 { base "protocol-type"; description "SDH STM-64 protocol type"; reference "MEF63 & G.709"; } identity STM-256 { base "protocol-type"; description "SDH STM-256 protocol type"; reference "MEF63 & G.709"; } identity OC-3 { base "protocol-type"; description "SONET OC-3 protocol type"; reference "MEF63 & G.709"; } identity OC-12 { base "protocol-type"; description "SONET OC-12 protocol type"; reference "MEF63 & G.709"; } identity OC-48 { base "protocol-type"; description "SONET OC-48 protocol type"; reference "MEF63 & G.709"; Fioccola, et al. Expires March 2019 [Page 16] Internet-Draft L1CSM YANG Model August 2018 } identity OC-192 { base "protocol-type"; description "SONET OC-192 protocol type"; reference "MEF63 & G.709"; } identity OC-768 { base "protocol-type"; description "SONET OC-768 protocol type"; reference "MEF63 & G.709"; } identity coding-func { description "base identity from which coding func is derived."; } identity ETH-1000X-PCS-36 { base "coding-func"; description "PCS clause 36 coding function that corresponds to 1000BASE-X"; } identity ETH-10GW-PCS-49-WIS-50 { base "coding-func"; description "PCS clause 49 and WIS clause 50 coding func that corresponds to 10GBASE-W (WAN PHY)"; } identity ETH-10GR-PCS-49 { base "coding-func"; description "PCS clause 49 coding function that corresponds to 10GBASE-R (LAN PHY)"; } identity ETH-40GR-PCS-82 { base "coding-func"; description "PCS clause 82 coding function that corresponds to 40GBASE-R"; } identity ETH-100GR-PCS-82 { base "coding-func"; description Fioccola, et al. Expires March 2019 [Page 17] Internet-Draft L1CSM YANG Model August 2018 "PCS clause 82 coding function that corresponds to 100GBASE-R"; } /* coding func needs to expand for Fiber Channel, SONET, SDH */ identity optical-interface-func { description "base identity from which optical-interface-function is derived."; } identity SX-PMD-clause-38 { base "optical-interface-func"; description "SX-PMD-clause-38 Optical Interface function for 1000BASE-X PCS-36"; } identity LX-PMD-clause-38 { base "optical-interface-func"; description "LX-PMD-clause-38 Optical Interface function for 1000BASE-X PCS-36"; } identity LX10-PMD-clause-59 { base "optical-interface-func"; description "LX10-PMD-clause-59 Optical Interface function for 1000BASE-X PCS-36"; } identity BX10-PMD-clause-59 { base "optical-interface-func"; description "BX10-PMD-clause-59 Optical Interface function for 1000BASE-X PCS-36"; } identity LW-PMD-clause-52 { base "optical-interface-func"; description "LW-PMD-clause-52 Optical Interface function for 10GBASE-W PCS-49-WIS-50"; } identity EW-PMD-clause-52 { base "optical-interface-func"; description "EW-PMD-clause-52 Optical Interface function for 10GBASE-W PCS-49-WIS-50"; } identity LR-PMD-clause-52 { base "optical-interface-func"; Fioccola, et al. Expires March 2019 [Page 18] Internet-Draft L1CSM YANG Model August 2018 description "LR-PMD-clause-52 Optical Interface function for 10GBASE-R PCS-49"; } identity ER-PMD-clause-52 { base "optical-interface-func"; description "ER-PMD-clause-52 Optical Interface function for 10GBASE-R PCS-49"; } identity LR4-PMD-clause-87 { base "optical-interface-func"; description "LR4-PMD-clause-87 Optical Interface function for 40GBASE-R PCS-82"; } identity ER4-PMD-clause-87 { base "optical-interface-func"; description "ER4-PMD-clause-87 Optical Interface function for 40GBASE-R PCS-82"; } identity FR-PMD-clause-89 { base "optical-interface-func"; description "FR-PMD-clause-89 Optical Interface function for 40GBASE-R PCS-82"; } identity LR4-PMD-clause-88 { base "optical-interface-func"; description "LR4-PMD-clause-88 Optical Interface function for 100GBASE-R PCS-82"; } identity ER4-PMD-clause-88 { base "optical-interface-func"; description "ER4-PMD-clause-88 Optical Interface function for 100GBASE-R PCS-82"; } /* optical interface func needs to expand for Fiber Channel, SONET and SDH */ identity performance-metriclist { description "list of performance metric"; } identity One-way-Delay { base "performance-metriclist"; Fioccola, et al. Expires March 2019 [Page 19] Internet-Draft L1CSM YANG Model August 2018 description "one-way-delay"; } identity One-way-Errored-Second { base "performance-metriclist"; description "one-way-errored-second"; } identity One-way-Severely-Errored-Second { base "performance-metriclist"; description "one-way-severely-errored-second"; } identity One-way-Unavailable-Second { base "performance-metriclist"; description "one-way-unavailable-second"; } identity One-way-Availability { base "performance-metriclist"; description "one-way-availability"; } } 5. JSON Example This section provides a JSON example of the YANG module described in Section 4. { "l1cs": { "access": { "uni-list": [ { "UNI-ID": "MTL-HQ-Node3-Slot2-Port1", "protocol": "ETH-10GigE_LAN ", "coding": "ETH-10GR-PCS-49 ", "optical_interface": "LR-PMD-clause-52 " }, { "UNI-ID": "MTL-STL-Node5-Slot4-Port3", "protocol": "ETH-10GigE_LAN ", Fioccola, et al. Expires March 2019 [Page 20] Internet-Draft L1CSM YANG Model August 2018 "coding": "ETH-10GR-PCS-49 ", "optical_interface": "ER-PMD-clause-52 " } ] }, "service": { "service-list": [ { "subscriber-l1vc-id": "Sub-L1VC-1867-LT-MEGAMART", "service-config": { "subscriber-l1vc-id": "Sub-L1VC-1867-LT-MEGAMART", "subscriber-l1vc-ep-id-1": "MTL-HQ_1867-MEGAMART", "subscriber-l1vc-ep-id-2": "MTL-STL_1867-MEGAMART", "subscriber-l1vc-ep-UNI-1": "MTL-HQ-Node3-Slot2-Port1", "subscriber-l1vc-ep-UNI-2": "MTL-STL-Node5-Slot4-Port3", "time-start": "2018-07-13T06:06:09Z", "time-interval": 2419200, "performance-metric": "One-way-Delay " } } ] } } } 6. Security Considerations The configuration, state, and action data defined in this document are designed to be accessed via a management protocol with a secure transport layer, 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 [RFC5246]. The NETCONF access control model [RFC8341] provides the means to restrict access for particular NETCONF users to a preconfigured subset of all available NETCONF protocol operations and content. A number of configuration data nodes defined in this document are Fioccola, et al. Expires March 2019 [Page 21] Internet-Draft L1CSM YANG Model August 2018 writable/deletable (i.e., "config true") These data nodes may be considered sensitive or vulnerable in some network environments. These are the subtrees and data nodes and their sensitivity/vulnerability: Service-Config: - subscriber-l1vc-id - subscriber-l1vc-ep-id-1 - subscriber-l1vc-ep-id-2 - subscriber-l1vc-ep-UNI-1 - subscriber-l1vc-ep-UNI-2 - time-start - time-interval - performance-metric 7. IANA Considerations This document registers the following namespace URIs in the IETF XML registry [RFC3688]: -------------------------------------------------------------------- URI: urn:ietf:params:xml:ns:yang:ietf-l1csm Registrant Contact: The IESG. XML: N/A, the requested URI is an XML namespace. -------------------------------------------------------------------- -------------------------------------------------------------------- URI: urn:ietf:params:xml:ns:yang:ietf-l1-service-types Registrant Contact: The IESG. XML: N/A, the requested URI is an XML namespace. -------------------------------------------------------------------- This document registers the following YANG modules in the YANG Module Names registry [RFC7950]: -------------------------------------------------------------------- name: ietf-l1csm Fioccola, et al. Expires March 2019 [Page 22] Internet-Draft L1CSM YANG Model August 2018 namespace: urn:ietf:params:xml:ns:yang:ietf-l1csm reference: RFC XXXX (TDB) -------------------------------------------------------------------- -------------------------------------------------------------------- name: ietf-l1-service-types namespace: urn:ietf:params:xml:ns:yang:ietf-l1-service-types reference: RFC XXXX (TDB) -------------------------------------------------------------------- 8. Acknowledgments The authors would like to thank Tom Petch and Italo Busi for their helpful comments and valuable contributions. Fioccola, et al. Expires March 2019 [Page 23] Internet-Draft L1CSM YANG Model August 2018 9. References 9.1. Normative References [MEF63] "Subscriber Layer 1 Service Attributes", Technical Specification, MEF 63, August 2018. [RFC5246] Dierks, T. and E. Rescorla, "The Transport Layer Security (TLS) Protocol Version 1.2", RFC 5246, August 2008. [RFC6020] Bjorklund, M., Ed., "YANG - A Data Modeling Language for the Network Configuration Protocol (NETCONF)", RFC 6020, October 2010. [RFC6241] Enns, R., Ed., Bjorklund, M., Ed., Schoenwaelder, J., Ed., and A. Bierman, Ed., "Network Configuration Protocol (NETCONF)", RFC 6241, June 2011. [RFC6242] Wasserman, M., "Using the NETCONF Protocol over Secure Shell (SSH)", RFC 6242, June 2011. [RFC6991] J. Schoenwaelder, Ed., "Common YANG Data Types", RFC 6991, July 2013. [RFC7950] Bjorklund, M., Ed., "The YANG 1.1 Data Modeling Language", RFC 7950, August 2016. [RFC8040] Bierman, A., Bjorklund, M., and K. Watsen, "RESTCONF Protocol", RFC 8040, January 2017. [RFC8341] Bierman, A. and M. Bjorklund, "Network Configuration Access Control Model", RFC 8341, March 2018. 9.2. Informative References [RFC4847] T. Takeda (Editor), "Framework and Requirements for Layer 1 Virtual Private Networks", RFC 4847, April 2007. [RFC5253] T. Takeda, "Applicability Statement for Layer 1 Virtual Private Network (L1VPN) Basic Mode", RFC 5253, July 2008. [RFC8309] Q. Wu, W. Liu and A. Farrel, "Service Models Explained", RFC 8309, January 2018. Fioccola, et al. Expires March 2019 [Page 24] Internet-Draft L1CSM YANG Model August 2018 [RFC8342] Bjorklund, M., Schoenwaelder, J., Shafer, P., Watsen, K., and R. Wilton, "Network Management Datastore Architecture (NMDA)", RFC 8342, March 2018, [G.709] ITU-T Recommendation G.709/Y.1331, Interfaces for the optical transport network, Corrigendum 1, August 2017. 10. Contributors Contributor's Addresses I. Busi Huawei Email: Italo.Busi@huawei.com Authors' Addresses G. Fioccola (Editor) Telecom Italia Email: giuseppe.fioccola@telecomitalia.it K. Lee KT Email: kwangkoog.lee@kt.com Y. Lee (Editor) Huawei Email: leeyoung@huawei.com D. Dhody Huawei Email: dhruv.ietf@gmail.com O. Gonzalez de Dios Telefonica Email: oscar.gonzalezdedios@telefonica.com D. Ceccarelli Ericsson Email: daniele.ceccarelli@ericsson.com Fioccola, et al. Expires March 2019 [Page 25]