Internet Engineering Task Force G. Galimberti, Ed. Internet-Draft Cisco Intended status: Experimental R. Kunze Expires: 27 April 2023 Deutsche Telekom D. Hiremagalur, Ed. G. Grammel, Ed. Juniper 24 October 2022 A YANG model to manage the optical interface parameters for an external transponder in a WDM network draft-ietf-ccamp-dwdm-if-param-yang-08 Abstract This memo 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 FEC codes including some not yet specified (or by 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 memo can be used for Optical Parameters monitoring and/or configuration of the endpoints of a multi-vendor IaDI optical link. The use of this model does not guarantee interworking of transceivers over a DWDM. 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. Copyright Notice Copyright (c) 2014 IETF Trust and the persons identified as the document authors. All rights reserved. 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/. Galimberti, et al. Expires 27 April 2023 [Page 1] Internet-Draft draft-ietf-ccamp-dwdm-if-param-yang-08 October 2022 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 27 April 2023. Copyright Notice Copyright (c) 2022 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 (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 . . . . . . . . . . . . . . . . . . . . . . . . 3 2. The Internet-Standard Management Framework . . . . . . . . . 3 3. Conventions . . . . . . . . . . . . . . . . . . . . . . . . . 4 4. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4.1. Optical Parameters Description . . . . . . . . . . . . . 5 4.1.1. Parameters at Ss . . . . . . . . . . . . . . . . . . 5 4.1.2. Interface at point Rs . . . . . . . . . . . . . . . . 6 4.2. Use Cases . . . . . . . . . . . . . . . . . . . . . . . . 6 4.3. Optical Interface for external transponder in a WDM network . . . . . . . . . . . . . . . . . . . . . . . . . 6 5. Structure of the Yang Module . . . . . . . . . . . . . . . . 10 6. Yang Module . . . . . . . . . . . . . . . . . . . . . . . . . 10 7. Security Considerations . . . . . . . . . . . . . . . . . . . 25 8. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 25 9. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 26 10. Contributors . . . . . . . . . . . . . . . . . . . . . . . . 26 11. References . . . . . . . . . . . . . . . . . . . . . . . . . 27 11.1. Normative References . . . . . . . . . . . . . . . . . . 27 11.2. Informative References . . . . . . . . . . . . . . . . . 29 Appendix A. Change Log . . . . . . . . . . . . . . . . . . . . . 29 Appendix B. Open Issues . . . . . . . . . . . . . . . . . . . . 30 Appendix C. Applicability examples . . . . . . . . . . . . . . . 30 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 31 Galimberti, et al. Expires 27 April 2023 [Page 2] Internet-Draft draft-ietf-ccamp-dwdm-if-param-yang-08 October 2022 1. Introduction This memo defines a Yang model that translates and obsolete the SNMP mib module defined in draft-galikunze-ccamp-dwdm-if-snmp-mib for managing single channel optical interface parameters of DWDM applications, using the approach specified in G.698.2. This model supports parameters to characterize coherent transceivers found in current implementations to specify the mode of operation. As application identifiers like those specified in ITU-T G.874 [ITU.G874] ITU-T G.698.2 [ITU.G698.2] may not be available we use mode templates instead. A mode template describes transceiver characteristics in detail and can be identified by a mode-id. This draft refers and supports the RFC7698. The YANG model describing and extending the optical parameters allows different vendors and operators to retrieve, provision and exchange information across the multi-vendor IaDI interfaces in an abstract manner. The concept introduced by this YANG model is the notion of a mode. A mode is a combination of parameters or parameter ranges that is supported by a transceiver. As an example, operating a device in QPSK mode may use a different FEC and requires less OSNR to reach the FEC limit than the same transceiver operating in QAM16 mode. Given the number of parameters and their possible combinations it is important for vendors to be able to qualify a set of combinations which is the basis to define a mode. The YANG model furthermore provides means to select one mode as current-mode from that pre- defined list of modes supported by the transceiver module. Once selected, current-opt-if-och-mode-params provide the means to configure specific parameters at run time and retrieve actual parameters from the module. For example, the frequency is a parameter that can be set within min/max boundaries set by the current mode. Laser Temperature however is a ro parameter available at run-time that can be checked against the mode boundaries and may trigger an event. 2. The Internet-Standard Management Framework // The title and text for this section has been copied from the // official boilerplate, and should not be modified unless the // boilerplate text at http;//ops.ietf.org/mib-boilerplate.html has // changed. See RFC4818 section 3.1 for a discussion of the // boilerplate section. Galimberti, et al. Expires 27 April 2023 [Page 3] Internet-Draft draft-ietf-ccamp-dwdm-if-param-yang-08 October 2022 For a detailed overview of the documents that describe the current Internet-Standard Management Framework, please refer to section 7 of RFC 3410 [RFC3410]. This memo specifies a Yang model for optical interfaces. 3. Conventions // TEMPLATE TODO This boilerplate should be used if the RFC2119 key // words are used in the internet draft. The text in this section // has been copied from the official boilerplate, and should not be // modified. The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in RFC 2119 [RFC2119] In the description of OIDs the convention: Set (S) Get (G) and Trap (T) conventions will describe the action allowed by the parameter. 4. Overview // TEMPLATE TODO The narrative part should include an overview // section that describes the scope and field of application of the // MIB modules defined by the specification. See RFC4181 section 3.2 // for a discussion of the Narrative section. Figure 1 shows a set of reference points, for single-channel connection between transmitters (Tx) and receivers (Rx). Here the DWDM network elements include an OM (Optical Multiplexer) and an OD (Optical Demultiplexer) which are used as a pair with the opposing element, one or more optical amplifiers and may also include one or more OADMs. Galimberti, et al. Expires 27 April 2023 [Page 4] Internet-Draft draft-ietf-ccamp-dwdm-if-param-yang-08 October 2022 Ss +-------------------------------------------------+ Rs | | DWDM Network Elements | | +---+ | | | \ / | | | +---+ Tx L1---|->| \ +------+ +------+ / |--|-->Rx L1 +---+ | | | | | +------+ | | | | | +---+ +---+ | | | | | | | | | | | | +---+ Tx L2---|->| OM |-->|------|->|ROADM |--|------|->| OD |--|-->Rx L2 +---+ | | | | | | | | | | | | +---+ +---+ | | | | | +------+ | | | | | +---+ Tx L3---|->| / | DWDM | | ^ | DWDM | \ |--|-->Rx L3 +---+ | | / | Link +----|--|----+ Link | \ | | +---+ +-----------+ | | +----------+ +--+ +--+ | | Rs v | Ss +-----+ +-----+ |RxLx | |TxLx | +-----+ +-----+ Ss = reference point at the DWDM network element tributary output Rs = reference point at the DWDM network element tributary input Lx = Lambda x OM = Optical Mux OD = Optical Demux ROADM = Reconfigurable Optical Add Drop Mux Figure 1: External transponder in WDM netwoks from Fig. 5.1/G.698.2 4.1. Optical Parameters Description The link between the external transponders through a WDM network media channels are managed at the edges, i.e. at the transmitters (Tx) and receivers (Rx) attached to the S and R reference points respectively. Definitions of the optical parameters are provided below to increase the readability of the document. 4.1.1. Parameters at Ss output-power: The mean launched power at Ss is the average power (in dBm) of a pseudo-random data sequence coupled into the DWDM link. Galimberti, et al. Expires 27 April 2023 [Page 5] Internet-Draft draft-ietf-ccamp-dwdm-if-param-yang-08 October 2022 central frequency: This parameter indicates the Central frequency value that Ss and Rs will be set to work (in THz) 4.1.2. Interface at point Rs input-power: The average received power (in dBm) at point Rs. Curr-OSNR: Current Optical Signal to Noise Ratio (OSNR) estimated at Rx Transceiver port. Curr-q-factor: "Q" factor estimated at Rx Transceiver port. 4.2. Use Cases The use cases are described in draft-ietf-ccamp-dwdm-if-mng-ctrl-fwk 4.3. Optical Interface for external transponder in a WDM network The ietf-ext-xponder-wdm-if is an augment to the ietf-interface. It allows the user to set the operating mode of transceivers as well as other operational parameters. The module provides also treshold settings and notifications to supervise measured parameters and notify the client. module: ietf-ext-xponder-wdm-if augment /if:interfaces/if:interface: +--rw optIfOChRsSs +--ro if-current-mode | +--ro mode-id? string | +--ro (mode) | +--:(G.698.2) | | +--ro standard-mode? standard-mode | | +--ro application-code | +--:(organizational-mode) | | +--ro organizational-mode | | +--ro operational-mode? | | | operational-mode | | +--ro organization-identifier? | | | organization-identifier | | +--ro available-fec-type? | | | layer0-types:fec-type | | +--ro available-modulation-type? | | | layer0-types:modulation | | +--ro available-baud-rate? Galimberti, et al. Expires 27 April 2023 [Page 6] Internet-Draft draft-ietf-ccamp-dwdm-if-param-yang-08 October 2022 | | layer0-types:available-baud-rate | +--:(explicit-mode) | +--ro explicit-mode | +--ro supported-modes | | +--ro supported-application-codes* | | | -> ../../../mode-id | | +--ro supported-organizational-modes* | | -> ../../../mode-id | +--ro line-coding-bitrate? | | layer0-types:line-coding-bitrate | +--ro min-central-frequency? | | layer0-types:frequency-thz | +--ro max-central-frequency? | | layer0-types:frequency-thz | +--ro transceiver-tunability | | layer0-types:frequency-ghz | +--ro min-channel-input-power? | | layer0-types:rx-channel-power-min; | +--ro max-channel-input-power? | | layer0-types:rx-channel-power-max | +--ro total-channel-output-power? | | layer0-types:rx-total-power-max | +--ro min-osnr-margin? | | layer0-types:min-osnr | +--ro q-margin? | | layer0-types:min-q-factor | +--ro available-fec-type? | | layer0-types:fec-type | +--ro fec-code-rate? | | layer0-types:fec-code-rate | +--ro pre-fec-ber-threshold? decimal64 | +--ro number-of-lasers? uint32 | +--ro min-laser-temperature? int32 | +--ro max-laser-temperature? int32 | +--ro chromatic-dispersion-penalty* [] | | +--ro chromatic-dispersion | | | decimal64 | | +--ro penalty | | penalty-value | +--ro polarization-dispersion-penalty* [] | | +--ro polarization-mode-dispersion | | | decimal64 | | +--ro penalty | | penalty-value | +--ro max-chromatic-dispersion? | | max-chromatic-dispersion | +--ro max-diff-group-delay? | | max-diff-group-delay Galimberti, et al. Expires 27 April 2023 [Page 7] Internet-Draft draft-ietf-ccamp-dwdm-if-param-yang-08 October 2022 | |--ro max-polarization-dependent-loss-penalty* | + +--ro max-polarization-dependent-loss? | | | power-in-db-or-null | | +--ro penalty | | penalty-value | +--ro available-modulation-type? | | layer0-types:modulation | +--ro bitrate | | layer0-types:bitrate | +--ro available-baud-rate? | | layer0-types:available-baud-rate | +--ro roll-off | layer0-types:roll-off +--ro if-supported-mode | +--ro number-of-modes-supported? uint32 +--rw if-supported-modes* | | +--ro mode-id? string | +--ro (mode) | +--:(G.698.2) | | +--ro standard-mode? standard-mode | +--:(organizational-mode) | | +--ro organizational-mode | | +--ro operational-mode? | | | operational-mode | | +--ro organization-identifier? | | | organization-identifier string | | +--ro available-fec-type? | | | layer0-types:fec-type | | +--ro available-modulation-type? | | | layer0-types:modulation | | +--ro available-baud-rate? | | layer0-types:available-baud-rate | +--:(explicit-mode) | +--ro explicit-mode | +--ro supported-modes | | +--ro supported-application-codes* | | | -> ../../../mode-id | | +--ro supported-organizational-modes* | | -> ../../../mode-id | +--ro line-coding-bitrate? | | layer0-types:line-coding-bitrate | +--ro min-central-frequency? | | layer0-types:frequency-thz | +--ro max-central-frequency? | | layer0-types:frequency-thz | +--ro transceiver-tunability | | layer0-types:frequency-ghz | +--ro min-channel-input-power? Galimberti, et al. Expires 27 April 2023 [Page 8] Internet-Draft draft-ietf-ccamp-dwdm-if-param-yang-08 October 2022 | | layer0-types:rx-channel-power-min; | +--ro max-channel-input-power? | | layer0-types:rx-channel-power-max | +--ro total-channel-output-power? | | layer0-types:rx-total-power-max | +--ro min-osnr-margin? | | layer0-types:min-osnr | +--ro q-margin? | | layer0-types:min-q-factor | +--ro available-fec-type? | | layer0-types:fec-type | +--ro fec-code-rate? | | layer0-types:fec-code-rate | +--ro pre-fec-ber-threshold? decimal64 | +--ro number-of-lasers? uint32 | +--ro min-laser-temperature? int32 | +--ro max-laser-temperature? int32 | +--ro chromatic-dispersion-penalty* [] | | +--ro chromatic-dispersion | | | layer0-types:chromatic-dispersion | | +--ro penalty | | layer0-types:penalty-value | +--ro polarization-dispersion-penalty* [] | | +--ro polarization-mode-dispersion | | | layer0-types:polarization-mode-dispersion | | +--ro penalty | | layer0-types:penalty-value | +--ro max-chromatic-dispersion? | | layer0-types:max-chromatic-dispersion | +--ro max-diff-group-delay? | |. layer0-types:max-diff-group-delay | |--ro max-polarization-dependent-loss-penalty* | + +--ro max-polarization-dependent-loss? | | | layer0-types:power-in-db-or-null | | +--ro penalty | | layer0-types:penalty-value | +--ro available-modulation-type? | | layer0-types:modulation | +--ro bitrate | | layer0-types:bitrate | +--ro available-baud-rate? | | layer0-types:available-baud-rate | +--ro roll-off | layer0-types:roll-off +--rw provisioning-opt-if-och-mode-params +--rw provisioning-opt-if-och-mode-params +--rw mode-id? string +--rw (mode) Galimberti, et al. Expires 27 April 2023 [Page 9] Internet-Draft draft-ietf-ccamp-dwdm-if-param-yang-08 October 2022 +--rw central-frequency? | layer0-types:frequency-thz +--rw channel-output-power? dbm-t +--ro channel-input-power? dbm-t +--ro total-input-power? dbm-t +--rw number-of-tcas-supported? uint32 +--rw mode-list* [tca-type] | +--rw tca-type layer0-types:opt-if-och-tca-types | +--rw min-threshold? int32 | +--rw max-threshold? int32 +--ro cur-osnr? layer0-types:snr +--ro cur-q-factor? int32 +--ro uncorrected-words? uint64 +--ro pre-fec-ber? decimal64 +--ro cd-pmd-penalty | layer0-types:cd-pmd-penalty +--ro pdl-penalty | layer0-types:pdl-penalty +--ro diff-group-delay max-diff-group-delay notifications: +---n opt-if-och-central-frequency-change | +--ro if-name? -> /if:interfaces/interface/name | +--ro new-opt-if-och-central-frequency | +--ro central-frequency? layer0-types:frequency-thz +---n opt-if-och-mode-change | +--ro if-name? -> /if:interfaces/interface/name | +--ro mode-id? string +---n opt-if-och-min-tca +--ro if-name? -> /if:interfaces/interface/name +--ro tca-type? opt-if-och-tca-types 5. Structure of the Yang Module ietf-ext-xponder-wdm-if is a top level model for the support of this feature. 6. Yang Module The ietf-ext-xponder-wdm-if is defined as an extension to ietf interfaces. Galimberti, et al. Expires 27 April 2023 [Page 10] Internet-Draft draft-ietf-ccamp-dwdm-if-param-yang-08 October 2022 file "ietf-ext-xponder-wdm-if.yang" module ietf-ext-xponder-wdm-if { namespace "urn:ietf:params:xml:ns:yang:ietf-ext-xponder-wdm-if"; prefix ietf-ext-xponder-wdm-if; import ietf-interfaces { prefix if; } import ietf-layer0-types { prefix "l0-types"; } import ietf-layer0-types-ext { prefix "l0-types-ext"; } organization "IETF CCAMP Working Group"; contact "WG Web: WG List: Editor: Dharini Hiremagalur "; description "This module contains a collection of YANG definitions for configuring Optical interfaces. Copyright (c) 2016 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)."; revision "2022-10-24" { description "Revision 1.8"; reference ""; } Galimberti, et al. Expires 27 April 2023 [Page 11] Internet-Draft draft-ietf-ccamp-dwdm-if-param-yang-08 October 2022 revision "2022-01-10" { description "Revision 1.7"; reference ""; } revision "2021-06-28" { description "Revision 1.6"; reference ""; } revision "2020-03-09" { description "Revision 1.5"; reference ""; } revision "2019-11-04" { description "Revision 1.4"; reference ""; } revision "2019-07-08" { description "Revision 1.3"; reference ""; } revision "2018-10-22" { description "Revision 1.2"; reference ""; } revision "2018-03-06" { description "Revision 1.1"; reference ""; } revision "2017-03-06" { description Galimberti, et al. Expires 27 April 2023 [Page 12] Internet-Draft draft-ietf-ccamp-dwdm-if-param-yang-08 October 2022 "Revision 1.0"; reference ""; } revision "2016-03-17" { description "Initial revision."; reference ""; } typedef opt-if-och-tca-types { type enumeration { enum max-laser-linewdt { description "The maximum laser linewidth"; } enum min-tx-power-tca { description "The min tx power TCA"; } enum max-tx-power-tca { description "The min tx power TCA"; } enum min-rx-power-tca{ description "The min tx power TCA"; } enum max-rx-power-tca{ description "The min tx power TCA"; } enum max-pol-power-diff-tca{ description "The power difference between polarization TCA"; } enum max-pol-skew-diff-tca{ description "The skew between the two polarization TCA"; } enum min-frequency-offset-tca{ description "Min Frequency offset TCA"; } enum max-frequency-offset-tca{ description "Max Frequency offset TCA"; } enum min-osnr-tca{ description "Min OSNR TCA"; } enum max-osnr-tca{ description "Max OSNR TCA"; Galimberti, et al. Expires 27 April 2023 [Page 13] Internet-Draft draft-ietf-ccamp-dwdm-if-param-yang-08 October 2022 } enum min-laser-temperature-tca{ description "The min tx power TCA"; } enum max-laser-temperature-tca{ description "Temperature TCA"; } enum min-fec-ber-tca{ description "Min Pre Fec BER TCA"; } enum max-fec-ber-tca{ description "Max Pre Fec BER TCA"; } enum min-q-tca{ description "Min Q TCA"; } enum max-q-tca { description "Max Q TCA"; } } description "The different types of TCA's"; } grouping opt-if-och-power { description "Interface optical Power"; leaf channel-output-power { type layer0-types:dbm-t; description "The output power for this interface in .01 dBm. The setting of the output power is optional"; } leaf channel-input-power { type layer0-types:dbm-t; config false; description "The current channel input power of this interface"; } leaf total-input-power { type layer0-types:dbm-t; config false; description "The total input power of this interface"; } } grouping opt-if-och-tca-thresholds { description "Thresholds for TCA's"; Galimberti, et al. Expires 27 April 2023 [Page 14] Internet-Draft draft-ietf-ccamp-dwdm-if-param-yang-08 October 2022 leaf tca-type { type opt-if-och-tca-types; description "type of the TCA eg TX Power"; } leaf min-threshold { type int32; description "A TCA is generated if the variable is less than this value"; } leaf max-threshold { type int32; description "A TCA is generated if the variable is more than this value"; } } grouping opt-if-och-fec { description "FEC type / info"; leaf available-fec-type { type identityref { base layer0-types:fec-type; } config false; description "Available FEC"; } leaf fec-set { type identityref { base layer0-types:fec-type; } description "FEC provisioning"; } leaf fec-code-rate { type layer0-types:fec-code-rate } config false; description "FEC-code-rate"; } leaf pre-fec-ber-threshold { type decimal64 { fraction-digits 18; } description " FEC BER threshold"; } } grouping opt-if-och-central-frequency { Galimberti, et al. Expires 27 April 2023 [Page 15] Internet-Draft draft-ietf-ccamp-dwdm-if-param-yang-08 October 2022 description "Interface Central Frequency"; leaf central-frequency { type layer0-types:frequency-thz; description "This parameter indicates the frequency of this interface "; } } grouping opt-if-och-modulation-params { description "Optical modulation parameters for the lane"; leaf available-modulation-type { type identityref { base modulation; } config false; description "Modulation type the specific transceiver in the list can support"; } leaf bitrate { type layer0-types:bitrate; units "Gbit/sec"; config false; description "The gross bitrate (e.g.,100, 200) of the optical tributary signal."; } leaf available-baud-rate { type layer0-types:available-baud-rate; units Bd; config false; description "Baud-rate the specific transceiver in the list can support. Baud-rate is the unit for symbol rate or modulation rate in symbols per second or pulses per second. It is the number of distinct symbol changes (signal events) made to the transmission medium per second in a digitally modulated signal or a line code"; } leaf roll-off { type layer0-types:roll-off config false; Galimberti, et al. Expires 27 April 2023 [Page 16] Internet-Draft draft-ietf-ccamp-dwdm-if-param-yang-08 October 2022 description "the roll-off factor (beta with values from 0 to 1) identifies how the real signal shape exceed the baud rate. If=0 it is exactly matching the baud rate.If=1 the signal exceeds the 50% of the baud rate at each side."; } } grouping opt-if-och-lane-param { description "Optical parameters for the lane"; leaf number-of-lasers { type uint32; config false; description "Number of optical lanes/lasers of the interf."; } leaf min-laser-temperature { type int32; units ".01C"; config false; description "Minimum Laser Temperature of this mode for this lane"; } leaf max-laser-temperature { type int32; units ".01C"; config false; description "Maximum Laser Temperature of this mode for this lane"; } leaf max-chromatic-dispersion { type layer0-types:max-chromatic-dispersion; config false; description "Maximum chromatic dispersion of this mode for this lane"; } leaf max-diff-group-delay { type layer0-types:max-diff-group-delay; config false; description "Maximum Differential group delay of this mode for this lane"; } list max-polarization-dependent-loss-penalty { config false; description "Optional penalty associated with the maximum acceptable accumulated polarization dependent loss. Galimberti, et al. Expires 27 April 2023 [Page 17] Internet-Draft draft-ietf-ccamp-dwdm-if-param-yang-08 October 2022 This list of pair pdl and penalty can be used to sample the function pdl = f(penalty)."; leaf max-polarization-dependent-loss { type layer0-types:power-in-db-or-null; config false; mandatory true; description "Maximum acceptable accumulated polarization dependent loss."; } uses penalty-value; } grouping chromatic-dispersion-penalty { description "list of chromatic dispersion and polarization dispersion penalties"; list cd-penalties {} key "penalties" description "list of CD penalties" } leaf chromatic-dispersion { type decimal64; config false; description "Chromatic Dispersion of this mode for this lane"; } leaf penalty-value { type decimal64; config false; description "penalty given by CD"; } } grouping polarization-dispersion-penalty { description "list of polarization dispersion penalties"; list pmd-penalties {} key "penalties" description "list of PMD penalties" } leaf polarization-mode-dispersion { type decimal64; config false; description "Polarization Mode Dispersion"; } leaf penalty-value { type decimal64; config false; Galimberti, et al. Expires 27 April 2023 [Page 18] Internet-Draft draft-ietf-ccamp-dwdm-if-param-yang-08 October 2022 description "penalty given by PMD"; } } grouping opt-if-och-tca-list { description "List of TCA's"; leaf number-of-tcas-supported { type uint32; description "Number of TCAs supported by this interface"; } list mode-list { key "tca-type"; description "List of the TCAs"; uses opt-if-och-tca-thresholds; } } grouping opt-if-och-fec-tca-thresholds { description "Pre FEC BER Thresholds for TCA's"; leaf min-fec-ber-threshold { type decimal64 { fraction-digits 18; } description "Min FEC BER threshold"; } leaf max-fec-ber-threshold { type decimal64 { fraction-digits 18; } description "Max FEC BER threshold"; } } grouping opt-if-och-mode-params { description "OCh mode parameters"; leaf mode-id { type string { length "1..255";} description "ID for the OCh mode template"; } leaf min-osnr-margin { type layer0-types:min-osnr; units "dB"; config false; description "OSNR margin to FEC threshold"; } leaf q-margin { type layer0-types:min-q-factor; units "dB"; Galimberti, et al. Expires 27 April 2023 [Page 19] Internet-Draft draft-ietf-ccamp-dwdm-if-param-yang-08 October 2022 config false; description "Q-Factor margin to FEC threshold"; } uses opt-if-och-central-frequency; uses opt-if-och-power; uses opt-if-och-fec-tca-thresholds; uses opt-if-och-tca-list; } grouping opt-if-och-statistics { description "OCh statistics"; leaf cur-osnr { type layer0-types:snr; units "dB"; config false; description "OSNR margin to FEC threshold"; } leaf cur-q-factor { type int32; units "dB"; config false; description "Q-Factor of the interface"; } leaf uncorrected-words { type uint64; config false; description "Post-FEC errored words"; } leaf pre-fec-ber { type decimal64 { fraction-digits 18; } config false; description "Pre-FEC errored words"; } } grouping opt-if-och-mode { description "OCh mode template"; leaf mode-id { type string { length "1..255"; } config false; description "ID for the OCh mode template"; } leaf (G.698.2) { type strings; config false; Galimberti, et al. Expires 27 April 2023 [Page 20] Internet-Draft draft-ietf-ccamp-dwdm-if-param-yang-08 October 2022 description "This parameter indicates the application identifier according to G.698.2"; uses standard-mode; } leaf (organizational-mode) { type strings; config false; description "This parameter indicates the operational-mode of different organization"; uses organizational-modes; } leaf (explicit-mode) { type strings; config false; description "This parameter indicates the operational-mode of different organization"; uses explicit-modes; } grouping standard-mode { description "ITU-T G.698.2 application codes"; leaf application-code { type string; description "ITU-T G.698.2 application code e.g. DScW-ytz(v)"; } } grouping organizational-modes { description "this identifies the vendor or organization operational mode including the Organization Unique Identifier, the i/f part number"; leaf operational-mode { type string; description "this string is defined by the oprganization or the vendor"; } leaf organization-identifier { type string; description "this string identified the OUI of the vendor or the organization"; } leaf part-number-identifier { Galimberti, et al. Expires 27 April 2023 [Page 21] Internet-Draft draft-ietf-ccamp-dwdm-if-param-yang-08 October 2022 type string; description "this string identified the optical interfaces part number or name given by the vendor or the organization"; } } grouping explicit-modes { description "interface explicit-modes"; leaf min-central-frequency { type layer0-types:frequency-thz; config false; description "his parameter indicates the minimum frequency for this template"; } leaf max-central-frequency { type layer0-types:frequency-thz; config false; description "This parameter indicates the minimum frequency for this template"; } leaf transceiver-tunability { type layer0-types:frequency-ghz; config false; description "This parameter indicates the transmitter frequency fine tuning steps e.g 3.125GHz or 0.001GHz."; } leaf min-channel-input-power { type layer0-types:rx-channel-power-min; config false; description "The minimum input power of this interface"; } leaf max-channel-input-power { type layer0-types:rx-channel-power-max; config false; description "The maximum input power of this interface"; } leaf total-channel-output-power { type layer0-types:rx-total-power-max; config false; description "The total output power of this interface"; } leaf osnr-margin { type layer0-types:snr; Galimberti, et al. Expires 27 April 2023 [Page 22] Internet-Draft draft-ietf-ccamp-dwdm-if-param-yang-08 October 2022 units "dB"; config false; description "OSNR margin to FEC threshold"; } leaf q-margin { type layer0-types:min-q-factor; units "dB"; config false; description "Q-Factor margin to FEC threshold"; } uses standard-mode; uses organizational-modes; uses opt-if-och-fec; uses opt-if-och-lane-param; } grouping opt-if-och-mode-list { description "List of Mode list group"; leaf number-of-modes-supported { type uint32; description "Number of modes supported by this interface"; } list mode-list { key "mode-id"; description "List of the modes"; uses opt-if-och-mode; } } notification opt-if-och-central-frequency-change { description "A change of Central Frequency has been detected"; leaf "if-name" { type leafref { path "/if:interfaces/if:interface/if:name"; } description "Interface name"; } container new-opt-if-och-central-frequency { description "The new Central Frequency of the interface"; uses opt-if-och-central-frequency; } } notification opt-if-och-mode-change { description "A change of Mode Template has been detected"; leaf "if-name" { type leafref { path "/if:interfaces/if:interface/if:name"; } Galimberti, et al. Expires 27 April 2023 [Page 23] Internet-Draft draft-ietf-ccamp-dwdm-if-param-yang-08 October 2022 description "Interface name"; } leaf mode-id { type string { length "1..255"; } description "ID for the OCh mode template"; } } notification opt-if-och-min-tca { description "A min output TCA notification"; leaf "if-name" { type leafref { path "/if:interfaces/if:interface/if:name"; } description "Interface name"; } leaf tca-type { type opt-if-och-tca-types; description "Type of TCA for eg min tx power TCA"; } } augment "/if:interfaces/if:interface" { description "Parameters for an optical interface"; container optIfOChRsSs { description "RsSs path configuration for an interface"; container if-current-mode { description "Current mode template of the interface"; uses opt-if-och-mode; } container if-supported-mode { config false; description "Supported mode list of this interface"; uses opt-if-och-mode-list; } container current-opt-if-och-mode-params { description "Current parameters of this interface"; uses opt-if-och-mode-params; uses opt-if-och-statistics; } } } } Galimberti, et al. Expires 27 April 2023 [Page 24] Internet-Draft draft-ietf-ccamp-dwdm-if-param-yang-08 October 2022 7. Security Considerations The YANG module defined in this memo is designed to be accessed via the NETCONF protocol [RFC6241]. he lowest NETCONF layer is the secure transport layer and the mandatory-to-implement secure transport is SSH [RFC6242]. The NETCONF access control model [RFC8341] provides the means to restrict access for particular NETCONF users to a pre- configured subset of all available NETCONF protocol operation and content. // TEMPLATE TODO you should explicitly list by name any readable // objects that are sensitive or vulnerable and the associated // security risks should be spelled out (for instance, if they might // reveal customer information or violate personal privacy laws such // as those of the European Union if exposed to unathorized parties). // TEMPLATE TODO The following three boilerplate paragraphs should // not be changed without very good reason. Changes will almost // certainly require justification during IESG review. 8. IANA Considerations // TEMPLATE TODO In order to comply with IESG policy as set forth in // http://www.ietf.org/ID-Checklist.html, every Internet-Draft that // is submitted to the IESG for publication MUST contain an IANA // Considerations section. The requirements for this section vary // depending what actions are required of the IANA. See "Guidelines // for Writing an IANA Considerations Section in RFCs" [RFC8126]. and // see [RFC4181] section 3.5 for more information on writing an IANA // clause for a MIB module internet draft. This document registers a URI in the IETF XML registry [RFC3688]. Following the format in [RFC3688], the following registration is requested to be made: URI: urn:ietf:params:xml:ns:yang:ietf-interfaces:ietf-ext-xponder- wdm-if Registrant Contact: The IESG. XML: N/A, the requested URI is an XML namespace. This document registers a YANG module in the YANG Module Names registry [RFC6020]. Galimberti, et al. Expires 27 April 2023 [Page 25] Internet-Draft draft-ietf-ccamp-dwdm-if-param-yang-08 October 2022 This document registers a YANG module in the YANG Module Names registry [RFC6020]. prefix: ietf-ext-xponder-wdm-if reference: RFC XXXX 9. Acknowledgements 10. Contributors Dean Bogdanovic Westford U.S.A. email ivandean@gmail.com Bernd Zeuner Deutsche Telekom Darmstadt Germany email B.Zeuner@telekom.de Massimiliano Salsi Juniper Networks 1133 Innovation Way Sunnyvale, CA, 94089 U.S.A. +1 408936847 email msalsi@google.com Arnold Mattheus Deutsche Telekom Darmstadt Germany email a.mattheus@telekom.de Manuel Paul Deutsche Telekom Berlin Germany email Manuel.Paul@telekom.de Walid Wakim Infinera ILLINOIS UNITED STATES email wakims@mac.com Kam Lam Galimberti, et al. Expires 27 April 2023 [Page 26] Internet-Draft draft-ietf-ccamp-dwdm-if-param-yang-08 October 2022 Nokia USA +1 732 331 3476 kam.lam@nokia.com Sergio Belotti Nokia Via Energy Park 20871 Vimercate (MB) Italy Sergio.belotti@nokia.com Andreas Burk Architekt Network Automation CTO Board 1und1 Versatel Deutschland GmbH Solmsstr. 73 D-60486 Frankfurt am Main +49 69 21789246 Andreas.Burk@1und1.net 11. References 11.1. Normative References [RFC2863] McCloghrie, K. and F. Kastenholz, "The Interfaces Group MIB", RFC 2863, DOI 10.17487/RFC2863, June 2000, . [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, DOI 10.17487/RFC2119, March 1997, . [RFC2578] McCloghrie, K., Ed., Perkins, D., Ed., and J. Schoenwaelder, Ed., "Structure of Management Information Version 2 (SMIv2)", STD 58, RFC 2578, DOI 10.17487/RFC2578, April 1999, . [RFC2579] McCloghrie, K., Ed., Perkins, D., Ed., and J. Schoenwaelder, Ed., "Textual Conventions for SMIv2", STD 58, RFC 2579, DOI 10.17487/RFC2579, April 1999, . Galimberti, et al. Expires 27 April 2023 [Page 27] Internet-Draft draft-ietf-ccamp-dwdm-if-param-yang-08 October 2022 [RFC2580] McCloghrie, K., Ed., Perkins, D., Ed., and J. Schoenwaelder, Ed., "Conformance Statements for SMIv2", STD 58, RFC 2580, DOI 10.17487/RFC2580, April 1999, . [RFC3591] Lam, H-K., Stewart, M., and A. Huynh, "Definitions of Managed Objects for the Optical Interface Type", RFC 3591, DOI 10.17487/RFC3591, September 2003, . [RFC6205] Otani, T., Ed. and D. Li, Ed., "Generalized Labels for Lambda-Switch-Capable (LSC) Label Switching Routers", RFC 6205, DOI 10.17487/RFC6205, March 2011, . [ITU.G698.2] International Telecommunications Union, "Amplified multichannel dense wavelength division multiplexing applications with single channel optical interfaces", ITU-T Recommendation G.698.2, November 2009. [ITU.G709] International Telecommunications Union, "Interface for the Optical Transport Network (OTN)", ITU-T Recommendation G.709, June 2016. [ITU.G872] International Telecommunications Union, "Architecture of optical transport networks", ITU-T Recommendation G.872, January 2017. [ITU.G798] International Telecommunications Union, "Characteristics of optical transport network hierarchy equipment functional blocks", ITU-T Recommendation G.798, December 2017. [ITU.G874] International Telecommunications Union, "Management aspects of optical transport network elements", ITU-T Recommendation G.874, October 2020. [ITU.G874.1] International Telecommunications Union, "Optical transport network (OTN): Protocol-neutral management information model for the network element view", ITU-T Recommendation G.874.1, November 2016. [ITU.G959.1] International Telecommunications Union, "Optical transport network physical layer interfaces", ITU-T Recommendation G.959.1, November 2009. Galimberti, et al. Expires 27 April 2023 [Page 28] Internet-Draft draft-ietf-ccamp-dwdm-if-param-yang-08 October 2022 [ITU.G826] International Telecommunications Union, "End-to-end error performance parameters and objectives for international, constant bit-rate digital paths and connections", ITU-T Recommendation G.826, December 2002. [ITU.G8201] International Telecommunications Union, "Error performance parameters and objectives for multi-operator international paths within the Optical Transport Network (OTN)", ITU-T Recommendation G.8201, April 2011. [ITU.G694.1] International Telecommunications Union, "Spectral grids for WDM applications: DWDM frequency grid", ITU-T Recommendation G.694.1, February 2012. [ITU.G7710] International Telecommunications Union, "Common equipment management function requirements", ITU-T Recommendation G.7710, August 2017. 11.2. Informative References [RFC3410] Case, J., Mundy, R., Partain, D., and B. Stewart, "Introduction and Applicability Statements for Internet- Standard Management Framework", RFC 3410, DOI 10.17487/RFC3410, December 2002, . [RFC7991] Hoffman, P., "The "xml2rfc" Version 3 Vocabulary", RFC 7991, DOI 10.17487/RFC7991, December 2016, . [RFC4181] Heard, C., Ed., "Guidelines for Authors and Reviewers of MIB Documents", BCP 111, RFC 4181, DOI 10.17487/RFC4181, September 2005, . [RFC4054] Strand, J., Ed. and A. Chiu, Ed., "Impairments and Other Constraints on Optical Layer Routing", RFC 4054, DOI 10.17487/RFC4054, May 2005, . Appendix A. Change Log This optional section should be removed before the internet draft is submitted to the IESG for publication as an RFC. Galimberti, et al. Expires 27 April 2023 [Page 29] Internet-Draft draft-ietf-ccamp-dwdm-if-param-yang-08 October 2022 Note to RFC Editor: please remove this appendix before publication as an RFC. Appendix B. Open Issues // TEMPLATE TODO This list of issues listed in this optional section // should be cleared and removed, and this optional section should be // removed before the internet draft is submitted to the IESG for // publication as an RFC. Note to RFC Editor: please remove this appendix before publication as an RFC. Appendix C. Applicability examples As an examample here below is the way and OpenROADM compliant equipment could be managed using the Yang models described in thei draft. In OpenROADM MSA there is a limited number of DWDM interfaces supported. Basically only the 100G Staircase FEC and 400G oFEC are supported and these two kind of interfaces can be easily summarized with the "mode-id" and the "application-identifier" strings. the models below are enough to identify the interface and few working parameters: Galimberti, et al. Expires 27 April 2023 [Page 30] Internet-Draft draft-ietf-ccamp-dwdm-if-param-yang-08 October 2022 module: ietf-ext-xponder-wdm-if augment /if:interfaces/if:interface: +--rw optIfOChRsSs +--rw if-current-mode | +--ro mode-id? string | +--ro application-identifier? string . . . +--rw current-opt-if-och-mode-params +--rw mode-id? string +--rw central-frequency? frequency-thz +--rw channel-output-power? dbm-t +--ro channel-input-power? dbm-t . . . +--ro cur-osnr? layer0-types:snr +--ro cur-q-factor? int32 +--ro uncorrected-words? uint64 +--ro pre-fec-ber? decimal64 Authors' Addresses Gabriele Galimberti (editor) Cisco Via Santa Maria Molgora, 48 c 20871 - Vimercate Italy Phone: +390392091462 Email: ggalimbe@cisco.com Ruediger Kunze Deutsche Telekom Winterfeldtstr. 21-27 10781 Berlin Germany Phone: +491702275321 Email: RKunze@telekom.de Galimberti, et al. Expires 27 April 2023 [Page 31] Internet-Draft draft-ietf-ccamp-dwdm-if-param-yang-08 October 2022 Dharini Hiremagalur (editor) Juniper 1133 Innovation Way Sunnyvale - 94089 California, United States of America Email: dharinih@juniper.net Gert Grammel (editor) Juniper Oskar-Schlemmer Str. 15 80807 Muenchen Germany Phone: +49 1725186386 Email: ggrammel@juniper.net Galimberti, et al. Expires 27 April 2023 [Page 32]