A YANG Data Model for WDM Tunnels
draft-ietf-ccamp-wdm-tunnel-yang-01
| Document | Type | Active Internet-Draft (ccamp WG) | |
|---|---|---|---|
| Authors | Aihua Guo , Sergio Belotti , Gabriele Galimberti , Universidad Autonoma de Madrid , Daniel Perdices Burrero | ||
| Last updated | 2024-03-01 | ||
| Replaces | draft-ietf-ccamp-wson-tunnel-model, draft-ietf-ccamp-flexigrid-tunnel-yang | ||
| RFC stream | Internet Engineering Task Force (IETF) | ||
| Intended RFC status | (None) | ||
| Formats | |||
| Yang Validation | 0 errors, 2 warnings | ||
| Additional resources | Mailing list discussion | ||
| Stream | WG state | WG Document | |
| Document shepherd | (None) | ||
| IESG | IESG state | I-D Exists | |
| Consensus boilerplate | Unknown | ||
| Telechat date | (None) | ||
| Responsible AD | (None) | ||
| Send notices to | (None) |
draft-ietf-ccamp-wdm-tunnel-yang-01
CCAMP Working Group A. Guo
Internet-Draft Futurewei Technologies
Intended status: Standards Track S. Belotti
Expires: 2 September 2024 Nokia
G. Galimberti
Individual
J.E.L.d.V. Mendez
Naudit HPCN
D.P. Burrero
Universidad Autonoma de Madrid
1 March 2024
A YANG Data Model for WDM Tunnels
draft-ietf-ccamp-wdm-tunnel-yang-01
Abstract
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).
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on 2 September 2024.
Copyright Notice
Copyright (c) 2024 IETF Trust and the persons identified as the
document authors. All rights reserved.
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This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents (https://trustee.ietf.org/
license-info) in effect on the date of publication of this document.
Please review these documents carefully, as they describe your rights
and restrictions with respect to this document. Code Components
extracted from this document must include Revised BSD License text as
described in Section 4.e of the Trust Legal Provisions and are
provided without warranty as described in the Revised BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Conventions and Definitions . . . . . . . . . . . . . . . . . 3
3. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 3
4. Example of Use . . . . . . . . . . . . . . . . . . . . . . . 4
5. YANG Model for WDM Tunnel . . . . . . . . . . . . . . . . . . 6
5.1. YANG Tree . . . . . . . . . . . . . . . . . . . . . . . . 6
5.2. YANG Code . . . . . . . . . . . . . . . . . . . . . . . . 35
6. Security Considerations . . . . . . . . . . . . . . . . . . . 65
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 65
8. References . . . . . . . . . . . . . . . . . . . . . . . . . 66
8.1. Normative References . . . . . . . . . . . . . . . . . . 66
8.2. Informative References . . . . . . . . . . . . . . . . . 67
Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . 68
Contributors . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 69
1. Introduction
Transport networks have evolved from traditional Wavelength Switched
Optical Networks (WSON) systems [RFC6163] based on only fixed-grid
wavelength switching, towards elastic optical networks, based on
flexi-grid Dense Wavelength Division Multiplexing (DWDM) transmission
and switching technologies [RFC7698]. Such technology aims at
increasing transport network scalability and flexibility, allowing
bandwidth usage optimization.
While [RFC9094] [I-D.ietf-ccamp-flexigrid-yang] focus on flexi-grid
objects such as nodes, transponders and links, this document presents
a YANG [RFC7950] model for the provisioning and management of Traffic
Engineering (TE) tunnels and Label Switched Paths (LSPs) in DWDM
Optical Networks, which can be Wavelength Switched Optical Networks
(WSON) networks or Flexi-Grid Dense Wavelength Division Multiplexing
(DWDM) Networks, or a mix of these two networks. This YANG module
defines the path from a source transponder or node to the destination
through several intermediate nodes in such a WDM optical network.
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This document identifies the WDM tunnel components, parameters and
their values, and characterizes the features and the performances of
the WDM elements. An application example is provided towards the end
of the document to understand their utility better.
2. Conventions and Definitions
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
"OPTIONAL" in this document are to be interpreted as described in
BCP 14 [RFC2119] [RFC8174] when, and only when, they appear in all
capitals, as shown here.
The terminology for describing YANG data models is found in
[RFC7950].
Refer to [RFC7446] and [RFC7699] for the key terms used in this
document.
The following terms are defined in [RFC7950] and are not redefined
here: - client
* server
* augment
* data model
* data node
The following terms are defined in [RFC6241] and are not redefined
here: - configuration data
* state data
3. Overview
The generic TE tunnel attributes, such as source and destination node
addresses, source and destination tunnel termination points (TTPs),
are already defined by the base data model in
[I-D.ietf-teas-yang-te]. The present model defines a WDM tunnel by
augmenting the base model with the following WDM technology-specific
constructs:
* Global WDM layer constraints that influence the TE path selection,
e.g., whether wavelength conversion or regeneration is considered
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* Global transponder/transceiver configuration constraints, e.g.,
operational modes, tuning constraints of the transceiver
* Global optical performance constraints, e.g. generalized Signal-
to-noise (G-SNR) margin of a feasible optical path
* Path-scope WDM layer constraints, e.g. identities of transceivers
assigned to the primary or secondary path
* List of links that defines the path
* Other optical attributes
Each path can be a segment path (only defined by the source and
destination nodes or link termination points) or an end-to-end path
(additionally needs source and destination transponders). Therefore,
all the attributes are optional to support both situations.
4. Example of Use
In order to explain how this model is used, the following example is
provided. An optical network usually has multiple transponders,
switches (nodes) and links. Figure 1 shows a simple topology, where
two physical paths interconnect two optical transponders via a
combination of both WSON and Flexi-grid wavelength switched nodes and
links.
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WDM Tunnel
<===================================================>
WDM Primary Path
<--------------------------------------------------->
+----------+ +----------+
| Flexi- | | Flexi- |
| grid | | grid |
| node A | | node E |
| | +------+ +------+ | |
| | Link 1 |Flexi-| Link 2 | WSON | Link 3 | |
| |<------>| grid |<------>| |<------>| |
|......... | |node B| |node C| | .........|
| Trans- : | +------+ +------+ | : Trans- |
| ponder : | | : ponder |
| A : | +----------+ | : E |
|........: | Link 4 |Flexi-grid| Link 5 | :........|
| | | D | | |
| |<------------>| node |<------------>| |
| | +----------+ | |
+----------+ +----------+
<--------------------------------------------------->
WDM Secondary Path
Figure 1: Topology Example
To configure an end-to-end WDM tunnel to interconnect transponders A
and E, first of all we have to populate the flexi-grid topology YANG
model with all elements in the network:
* We define the transponders within nodes A and E as tunnel
termination points (TTPs) and provide their internal local link
connectivity towards the node interfaces. We also provide nodes A
and E identifiers, addresses and interfaces.
* We do the same for the nodes B, C and D, providing their
identifiers, addresses and interfaces, as well as the internal
connectivity matrix between interfaces.
* Then, we also define the links 1 to 5 that interconnect nodes,
indicating which WSON or flexi-grid labels are available.
* Other information, such as the slot frequency and granularity are
also provided.
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After the nodes, links and transponders have been defined using
[I-D.ietf-ccamp-flexigrid-yang] and [RFC9094] we can configure the
tunnel from the information we have stored in the flexi-grid
topology, by querying which elements are available, and planning the
resources that have to be provided on each situation, taking into
account the global and path-specific WDM tunnel constraints. Note
that every element in the flexi-grid topology has a reference, and
this is the way in which they are called in the tunnel.
* Depending on the case, it is possible to define either the source
and destination node ports, or the source and destination node and
transponder. In our case, we would define a network tunnel, with
source transponder A and source node B, and destination
transponder E and destination node C. Thus, we are going to
follow path x.
* Then, for each link in the path x, we indicate which channel we
are going to use, providing information about the slots, and what
nodes are connected.
* Finally, the flexi-grid topology has to be updated with each
element usage status each time a tunnel is created or torn down.
5. YANG Model for WDM Tunnel
5.1. YANG Tree
module: ietf-wdm-tunnel
augment /te:te/te:tunnels/te:tunnel:
+--rw wdm-constraint
+--rw transceiver-constraint
| +--rw operational-modes* string
| +--rw tx-tune-constraints
| | +--rw min-central-frequency? frequency-thz
| | +--rw max-central-frequency? frequency-thz
| | +--rw transceiver-tunability? frequency-ghz
| +--rw line-coding-bitrate* identityref
| +--rw tx-channel-power? l0-types:power-dbm
| +--rw preferred-rx-channel-power? l0-types:power-dbm
+--rw gsnr-extra-margin? snr
+--rw use-regen? boolean
+--rw wavelength-conversion? boolean
+--rw wavelength-assignment? identityref
+--rw guard-band-size? l0-types:frequency-thz
+--rw matching-fwd-rev-wavelength? boolean
+--rw allow-retuning? boolean
+--rw delta-power? l0-types:power-ratio
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augment /te:te/te:tunnels/te:tunnel/te:primary-paths
/te:primary-path/te:explicit-route-objects
/te:route-object-exclude-always/te:type
/te:numbered-node-hop/te:numbered-node-hop:
+--rw path-in-transceiver
| +--rw transponder-id? uint32
| +--rw transceivers* [lane-id]
| +--rw lane-id uint8
| +--rw transceiver-id? uint32
| +--rw operational-modes* string
| +--rw tx-tune-constraints
| | +--rw min-central-frequency? frequency-thz
| | +--rw max-central-frequency? frequency-thz
| | +--rw transceiver-tunability? frequency-ghz
| +--rw line-coding-bitrate* identityref
| +--rw tx-channel-power? l0-types:power-dbm
| +--rw preferred-rx-channel-power? l0-types:power-dbm
+--rw path-out-transceiver
+--rw transponder-id? uint32
+--rw transceivers* [lane-id]
+--rw lane-id uint8
+--rw transceiver-id? uint32
+--rw operational-modes* string
+--rw tx-tune-constraints
| +--rw min-central-frequency? frequency-thz
| +--rw max-central-frequency? frequency-thz
| +--rw transceiver-tunability? frequency-ghz
+--rw line-coding-bitrate* identityref
+--rw tx-channel-power? l0-types:power-dbm
+--rw preferred-rx-channel-power? l0-types:power-dbm
augment /te:te/te:tunnels/te:tunnel/te:primary-paths
/te:primary-path/te:primary-reverse-path
/te:explicit-route-objects/te:route-object-exclude-always
/te:type/te:numbered-node-hop/te:numbered-node-hop:
+--rw path-in-transceiver
| +--rw transponder-id? uint32
| +--rw transceivers* [lane-id]
| +--rw lane-id uint8
| +--rw transceiver-id? uint32
| +--rw operational-modes* string
| +--rw tx-tune-constraints
| | +--rw min-central-frequency? frequency-thz
| | +--rw max-central-frequency? frequency-thz
| | +--rw transceiver-tunability? frequency-ghz
| +--rw line-coding-bitrate* identityref
| +--rw tx-channel-power? l0-types:power-dbm
| +--rw preferred-rx-channel-power? l0-types:power-dbm
+--rw path-out-transceiver
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+--rw transponder-id? uint32
+--rw transceivers* [lane-id]
+--rw lane-id uint8
+--rw transceiver-id? uint32
+--rw operational-modes* string
+--rw tx-tune-constraints
| +--rw min-central-frequency? frequency-thz
| +--rw max-central-frequency? frequency-thz
| +--rw transceiver-tunability? frequency-ghz
+--rw line-coding-bitrate* identityref
+--rw tx-channel-power? l0-types:power-dbm
+--rw preferred-rx-channel-power? l0-types:power-dbm
augment /te:te/te:tunnels/te:tunnel/te:secondary-paths
/te:secondary-path/te:explicit-route-objects
/te:route-object-exclude-always/te:type
/te:numbered-node-hop/te:numbered-node-hop:
+--rw path-in-transceiver
| +--rw transponder-id? uint32
| +--rw transceivers* [lane-id]
| +--rw lane-id uint8
| +--rw transceiver-id? uint32
| +--rw operational-modes* string
| +--rw tx-tune-constraints
| | +--rw min-central-frequency? frequency-thz
| | +--rw max-central-frequency? frequency-thz
| | +--rw transceiver-tunability? frequency-ghz
| +--rw line-coding-bitrate* identityref
| +--rw tx-channel-power? l0-types:power-dbm
| +--rw preferred-rx-channel-power? l0-types:power-dbm
+--rw path-out-transceiver
+--rw transponder-id? uint32
+--rw transceivers* [lane-id]
+--rw lane-id uint8
+--rw transceiver-id? uint32
+--rw operational-modes* string
+--rw tx-tune-constraints
| +--rw min-central-frequency? frequency-thz
| +--rw max-central-frequency? frequency-thz
| +--rw transceiver-tunability? frequency-ghz
+--rw line-coding-bitrate* identityref
+--rw tx-channel-power? l0-types:power-dbm
+--rw preferred-rx-channel-power? l0-types:power-dbm
augment /te:te/te:tunnels/te:tunnel/te:secondary-reverse-paths
/te:secondary-reverse-path/te:explicit-route-objects
/te:route-object-exclude-always/te:type
/te:numbered-node-hop/te:numbered-node-hop:
+--rw path-in-transceiver
| +--rw transponder-id? uint32
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| +--rw transceivers* [lane-id]
| +--rw lane-id uint8
| +--rw transceiver-id? uint32
| +--rw operational-modes* string
| +--rw tx-tune-constraints
| | +--rw min-central-frequency? frequency-thz
| | +--rw max-central-frequency? frequency-thz
| | +--rw transceiver-tunability? frequency-ghz
| +--rw line-coding-bitrate* identityref
| +--rw tx-channel-power? l0-types:power-dbm
| +--rw preferred-rx-channel-power? l0-types:power-dbm
+--rw path-out-transceiver
+--rw transponder-id? uint32
+--rw transceivers* [lane-id]
+--rw lane-id uint8
+--rw transceiver-id? uint32
+--rw operational-modes* string
+--rw tx-tune-constraints
| +--rw min-central-frequency? frequency-thz
| +--rw max-central-frequency? frequency-thz
| +--rw transceiver-tunability? frequency-ghz
+--rw line-coding-bitrate* identityref
+--rw tx-channel-power? l0-types:power-dbm
+--rw preferred-rx-channel-power? l0-types:power-dbm
augment /te:te/te:tunnels/te:tunnel/te:primary-paths
/te:primary-path/te:computed-paths-properties
/te:computed-path-properties/te:path-properties:
+--ro estimated-gsnr? snr
+--ro estimated-eol-gsnr? snr
+--ro estimated-lowest-gsnr? snr
augment /te:te/te:tunnels/te:tunnel/te:primary-paths
/te:primary-path/te:primary-reverse-path
/te:computed-paths-properties/te:computed-path-properties
/te:path-properties:
+--ro estimated-gsnr? snr
+--ro estimated-eol-gsnr? snr
+--ro estimated-lowest-gsnr? snr
augment /te:te/te:tunnels/te:tunnel/te:secondary-paths
/te:secondary-path/te:computed-paths-properties
/te:computed-path-properties/te:path-properties:
+--ro estimated-gsnr? snr
+--ro estimated-eol-gsnr? snr
+--ro estimated-lowest-gsnr? snr
augment /te:te/te:tunnels/te:tunnel/te:secondary-reverse-paths
/te:secondary-reverse-path/te:computed-paths-properties
/te:computed-path-properties/te:path-properties:
+--ro estimated-gsnr? snr
+--ro estimated-eol-gsnr? snr
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+--ro estimated-lowest-gsnr? snr
augment /te:te/te:tunnels/te:tunnel/te:primary-paths
/te:primary-path/te:computed-paths-properties
/te:computed-path-properties/te:path-properties
/te:path-route-objects/te:path-route-object/te:type
/te:numbered-node-hop/te:numbered-node-hop:
+--ro path-in-transceiver
| +--ro transponder-id? uint32
| +--ro transceivers* [lane-id]
| +--ro lane-id uint8
| +--ro transceiver-id? uint32
| +--ro rx-channel-power? power-dbm-or-null
| +--ro rx-total-power? power-dbm-or-null
+--ro path-out-transceiver
+--ro transponder-id? uint32
+--ro transceivers* [lane-id]
+--ro lane-id uint8
+--ro transceiver-id? uint32
+--ro rx-channel-power? power-dbm-or-null
+--ro rx-total-power? power-dbm-or-null
augment /te:te/te:tunnels/te:tunnel/te:primary-paths
/te:primary-path/te:primary-reverse-path
/te:computed-paths-properties/te:computed-path-properties
/te:path-properties/te:path-route-objects
/te:path-route-object/te:type/te:numbered-node-hop
/te:numbered-node-hop:
+--ro path-in-transceiver
| +--ro transponder-id? uint32
| +--ro transceivers* [lane-id]
| +--ro lane-id uint8
| +--ro transceiver-id? uint32
| +--ro rx-channel-power? power-dbm-or-null
| +--ro rx-total-power? power-dbm-or-null
+--ro path-out-transceiver
+--ro transponder-id? uint32
+--ro transceivers* [lane-id]
+--ro lane-id uint8
+--ro transceiver-id? uint32
+--ro rx-channel-power? power-dbm-or-null
+--ro rx-total-power? power-dbm-or-null
augment /te:te/te:tunnels/te:tunnel/te:secondary-paths
/te:secondary-path/te:computed-paths-properties
/te:computed-path-properties/te:path-properties
/te:path-route-objects/te:path-route-object/te:type
/te:numbered-node-hop/te:numbered-node-hop:
+--ro path-in-transceiver
| +--ro transponder-id? uint32
| +--ro transceivers* [lane-id]
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| +--ro lane-id uint8
| +--ro transceiver-id? uint32
| +--ro rx-channel-power? power-dbm-or-null
| +--ro rx-total-power? power-dbm-or-null
+--ro path-out-transceiver
+--ro transponder-id? uint32
+--ro transceivers* [lane-id]
+--ro lane-id uint8
+--ro transceiver-id? uint32
+--ro rx-channel-power? power-dbm-or-null
+--ro rx-total-power? power-dbm-or-null
augment /te:te/te:tunnels/te:tunnel/te:secondary-reverse-paths
/te:secondary-reverse-path/te:computed-paths-properties
/te:computed-path-properties/te:path-properties
/te:path-route-objects/te:path-route-object/te:type
/te:numbered-node-hop/te:numbered-node-hop:
+--ro path-in-transceiver
| +--ro transponder-id? uint32
| +--ro transceivers* [lane-id]
| +--ro lane-id uint8
| +--ro transceiver-id? uint32
| +--ro rx-channel-power? power-dbm-or-null
| +--ro rx-total-power? power-dbm-or-null
+--ro path-out-transceiver
+--ro transponder-id? uint32
+--ro transceivers* [lane-id]
+--ro lane-id uint8
+--ro transceiver-id? uint32
+--ro rx-channel-power? power-dbm-or-null
+--ro rx-total-power? power-dbm-or-null
augment /te:te/te:lsps/te:lsp/te:lsp-actual-route-information:
+--ro wdm-path-state
+--ro gsnr? l0-types:snr
augment /te:te/te:lsps/te:lsp/te:lsp-actual-route-information
/te:lsp-actual-route-information/te:type
/te:numbered-node-hop/te:numbered-node-hop:
+--ro path-in-transceiver
| +--ro transponder-id? uint32
| +--ro transceivers* [lane-id]
| +--ro lane-id uint8
| +--ro transceiver-id? uint32
| +--ro rx-channel-power? power-dbm-or-null
| +--ro rx-total-power? power-dbm-or-null
+--ro path-out-transceiver
+--ro transponder-id? uint32
+--ro transceivers* [lane-id]
+--ro lane-id uint8
+--ro transceiver-id? uint32
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+--ro rx-channel-power? power-dbm-or-null
+--ro rx-total-power? power-dbm-or-null
augment /te:te/te:globals/te:named-path-constraints
/te:named-path-constraint/te:path-in-segment
/te:label-restrictions/te:label-restriction:
+--rw grid-type? identityref
+--rw priority? uint8
+--rw flexi-grid
+--rw slot-width-granularity? identityref
+--rw min-slot-width-factor? uint16
+--rw max-slot-width-factor? uint16
augment /te:te/te:globals/te:named-path-constraints
/te:named-path-constraint/te:path-out-segment
/te:label-restrictions/te:label-restriction:
+--rw grid-type? identityref
+--rw priority? uint8
+--rw flexi-grid
+--rw slot-width-granularity? identityref
+--rw min-slot-width-factor? uint16
+--rw max-slot-width-factor? uint16
augment /te:te/te:tunnels/te:tunnel/te:primary-paths
/te:primary-path/te:path-in-segment/te:label-restrictions
/te:label-restriction:
+--rw grid-type? identityref
+--rw priority? uint8
+--rw flexi-grid
+--rw slot-width-granularity? identityref
+--rw min-slot-width-factor? uint16
+--rw max-slot-width-factor? uint16
augment /te:te/te:tunnels/te:tunnel/te:primary-paths
/te:primary-path/te:path-out-segment
/te:label-restrictions/te:label-restriction:
+--rw grid-type? identityref
+--rw priority? uint8
+--rw flexi-grid
+--rw slot-width-granularity? identityref
+--rw min-slot-width-factor? uint16
+--rw max-slot-width-factor? uint16
augment /te:te/te:tunnels/te:tunnel/te:primary-paths
/te:primary-path/te:primary-reverse-path
/te:path-in-segment/te:label-restrictions
/te:label-restriction:
+--rw grid-type? identityref
+--rw priority? uint8
+--rw flexi-grid
+--rw slot-width-granularity? identityref
+--rw min-slot-width-factor? uint16
+--rw max-slot-width-factor? uint16
Guo, et al. Expires 2 September 2024 [Page 12]
Internet-Draft WDM Tunnel YANG Model March 2024
augment /te:te/te:tunnels/te:tunnel/te:primary-paths
/te:primary-path/te:primary-reverse-path
/te:path-out-segment/te:label-restrictions
/te:label-restriction:
+--rw grid-type? identityref
+--rw priority? uint8
+--rw flexi-grid
+--rw slot-width-granularity? identityref
+--rw min-slot-width-factor? uint16
+--rw max-slot-width-factor? uint16
augment /te:te/te:tunnels/te:tunnel/te:secondary-paths
/te:secondary-path/te:path-in-segment
/te:label-restrictions/te:label-restriction:
+--rw grid-type? identityref
+--rw priority? uint8
+--rw flexi-grid
+--rw slot-width-granularity? identityref
+--rw min-slot-width-factor? uint16
+--rw max-slot-width-factor? uint16
augment /te:te/te:tunnels/te:tunnel/te:secondary-paths
/te:secondary-path/te:path-out-segment
/te:label-restrictions/te:label-restriction:
+--rw grid-type? identityref
+--rw priority? uint8
+--rw flexi-grid
+--rw slot-width-granularity? identityref
+--rw min-slot-width-factor? uint16
+--rw max-slot-width-factor? uint16
augment /te:te/te:tunnels/te:tunnel/te:secondary-reverse-paths
/te:secondary-reverse-path/te:path-in-segment
/te:label-restrictions/te:label-restriction:
+--rw grid-type? identityref
+--rw priority? uint8
+--rw flexi-grid
+--rw slot-width-granularity? identityref
+--rw min-slot-width-factor? uint16
+--rw max-slot-width-factor? uint16
augment /te:te/te:tunnels/te:tunnel/te:secondary-reverse-paths
/te:secondary-reverse-path/te:path-out-segment
/te:label-restrictions/te:label-restriction:
+--rw grid-type? identityref
+--rw priority? uint8
+--rw flexi-grid
+--rw slot-width-granularity? identityref
+--rw min-slot-width-factor? uint16
+--rw max-slot-width-factor? uint16
augment /te:te/te:globals/te:named-path-constraints
/te:named-path-constraint/te:explicit-route-objects
Guo, et al. Expires 2 September 2024 [Page 13]
Internet-Draft WDM Tunnel YANG Model March 2024
/te:route-object-exclude-always/te:type/te:label
/te:label-hop/te:te-label/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw (fixed-single-or-super-channel)?
| +--:(single)
| | +--rw dwdm-n? l0-types:dwdm-n
| +--:(multi)
| +--rw subcarrier-dwdm-n* l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
x--:(super)
| x--rw subcarrier-flexi-n* [flexi-n]
| +--rw flexi-n l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
+--:(multi)
+--rw frequency-slots
+--rw frequency-slot* [flexi-n]
+--rw flexi-n l0-types:flexi-n
+--rw flexi-m? l0-types:flexi-m
augment /te:te/te:globals/te:named-path-constraints
/te:named-path-constraint/te:explicit-route-objects
/te:route-object-include-exclude/te:type/te:label
/te:label-hop/te:te-label/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw (fixed-single-or-super-channel)?
| +--:(single)
| | +--rw dwdm-n? l0-types:dwdm-n
| +--:(multi)
| +--rw subcarrier-dwdm-n* l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
x--:(super)
| x--rw subcarrier-flexi-n* [flexi-n]
| +--rw flexi-n l0-types:flexi-n
Guo, et al. Expires 2 September 2024 [Page 14]
Internet-Draft WDM Tunnel YANG Model March 2024
| +--rw flexi-m? l0-types:flexi-m
+--:(multi)
+--rw frequency-slots
+--rw frequency-slot* [flexi-n]
+--rw flexi-n l0-types:flexi-n
+--rw flexi-m? l0-types:flexi-m
augment /te:te/te:globals/te:named-path-constraints
/te:named-path-constraint/te:path-in-segment
/te:label-restrictions/te:label-restriction
/te:label-start/te:te-label/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw dwdm-n? l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw flexi-n? l0-types:flexi-n
augment /te:te/te:globals/te:named-path-constraints
/te:named-path-constraint/te:path-in-segment
/te:label-restrictions/te:label-restriction/te:label-end
/te:te-label/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw dwdm-n? l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw flexi-n? l0-types:flexi-n
augment /te:te/te:globals/te:named-path-constraints
/te:named-path-constraint/te:path-in-segment
/te:label-restrictions/te:label-restriction/te:label-step
/te:technology:
+--:(wdm)
+--rw (l0-grid-type)?
+--:(fixed-dwdm)
| +--rw wson-dwdm-channel-spacing? identityref
+--:(cwdm)
| +--rw wson-cwdm-channel-spacing? identityref
+--:(flexi-grid)
x--rw flexi-grid-channel-spacing? identityref
+--rw flexi-ncfg? identityref
+--rw flexi-n-step? uint8
augment /te:te/te:globals/te:named-path-constraints
/te:named-path-constraint/te:path-out-segment
/te:label-restrictions/te:label-restriction
/te:label-start/te:te-label/te:technology:
Guo, et al. Expires 2 September 2024 [Page 15]
Internet-Draft WDM Tunnel YANG Model March 2024
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw dwdm-n? l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw flexi-n? l0-types:flexi-n
augment /te:te/te:globals/te:named-path-constraints
/te:named-path-constraint/te:path-out-segment
/te:label-restrictions/te:label-restriction/te:label-end
/te:te-label/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw dwdm-n? l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw flexi-n? l0-types:flexi-n
augment /te:te/te:globals/te:named-path-constraints
/te:named-path-constraint/te:path-out-segment
/te:label-restrictions/te:label-restriction/te:label-step
/te:technology:
+--:(wdm)
+--rw (l0-grid-type)?
+--:(fixed-dwdm)
| +--rw wson-dwdm-channel-spacing? identityref
+--:(cwdm)
| +--rw wson-cwdm-channel-spacing? identityref
+--:(flexi-grid)
x--rw flexi-grid-channel-spacing? identityref
+--rw flexi-ncfg? identityref
+--rw flexi-n-step? uint8
augment /te:te/te:tunnels/te:tunnel/te:primary-paths
/te:primary-path/te:optimizations/te:algorithm/te:metric
/te:optimization-metric/te:explicit-route-exclude-objects
/te:route-object-exclude-object/te:type/te:label
/te:label-hop/te:te-label/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw (fixed-single-or-super-channel)?
| +--:(single)
| | +--rw dwdm-n? l0-types:dwdm-n
| +--:(multi)
| +--rw subcarrier-dwdm-n* l0-types:dwdm-n
+--:(cwdm)
Guo, et al. Expires 2 September 2024 [Page 16]
Internet-Draft WDM Tunnel YANG Model March 2024
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
x--:(super)
| x--rw subcarrier-flexi-n* [flexi-n]
| +--rw flexi-n l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
+--:(multi)
+--rw frequency-slots
+--rw frequency-slot* [flexi-n]
+--rw flexi-n l0-types:flexi-n
+--rw flexi-m? l0-types:flexi-m
augment /te:te/te:tunnels/te:tunnel/te:primary-paths
/te:primary-path/te:optimizations/te:algorithm/te:metric
/te:optimization-metric/te:explicit-route-include-objects
/te:route-object-include-object/te:type/te:label
/te:label-hop/te:te-label/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw (fixed-single-or-super-channel)?
| +--:(single)
| | +--rw dwdm-n? l0-types:dwdm-n
| +--:(multi)
| +--rw subcarrier-dwdm-n* l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
x--:(super)
| x--rw subcarrier-flexi-n* [flexi-n]
| +--rw flexi-n l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
+--:(multi)
+--rw frequency-slots
+--rw frequency-slot* [flexi-n]
+--rw flexi-n l0-types:flexi-n
+--rw flexi-m? l0-types:flexi-m
augment /te:te/te:tunnels/te:tunnel/te:primary-paths
/te:primary-path/te:explicit-route-objects
/te:route-object-exclude-always/te:type/te:label
/te:label-hop/te:te-label/te:technology:
Guo, et al. Expires 2 September 2024 [Page 17]
Internet-Draft WDM Tunnel YANG Model March 2024
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw (fixed-single-or-super-channel)?
| +--:(single)
| | +--rw dwdm-n? l0-types:dwdm-n
| +--:(multi)
| +--rw subcarrier-dwdm-n* l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
x--:(super)
| x--rw subcarrier-flexi-n* [flexi-n]
| +--rw flexi-n l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
+--:(multi)
+--rw frequency-slots
+--rw frequency-slot* [flexi-n]
+--rw flexi-n l0-types:flexi-n
+--rw flexi-m? l0-types:flexi-m
augment /te:te/te:tunnels/te:tunnel/te:primary-paths
/te:primary-path/te:explicit-route-objects
/te:route-object-include-exclude/te:type/te:label
/te:label-hop/te:te-label/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw (fixed-single-or-super-channel)?
| +--:(single)
| | +--rw dwdm-n? l0-types:dwdm-n
| +--:(multi)
| +--rw subcarrier-dwdm-n* l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
x--:(super)
| x--rw subcarrier-flexi-n* [flexi-n]
| +--rw flexi-n l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
+--:(multi)
Guo, et al. Expires 2 September 2024 [Page 18]
Internet-Draft WDM Tunnel YANG Model March 2024
+--rw frequency-slots
+--rw frequency-slot* [flexi-n]
+--rw flexi-n l0-types:flexi-n
+--rw flexi-m? l0-types:flexi-m
augment /te:te/te:tunnels/te:tunnel/te:primary-paths
/te:primary-path/te:path-in-segment/te:label-restrictions
/te:label-restriction/te:label-start/te:te-label
/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw dwdm-n? l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw flexi-n? l0-types:flexi-n
augment /te:te/te:tunnels/te:tunnel/te:primary-paths
/te:primary-path/te:path-in-segment/te:label-restrictions
/te:label-restriction/te:label-end/te:te-label
/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw dwdm-n? l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw flexi-n? l0-types:flexi-n
augment /te:te/te:tunnels/te:tunnel/te:primary-paths
/te:primary-path/te:path-in-segment/te:label-restrictions
/te:label-restriction/te:label-step/te:technology:
+--:(wdm)
+--rw (l0-grid-type)?
+--:(fixed-dwdm)
| +--rw wson-dwdm-channel-spacing? identityref
+--:(cwdm)
| +--rw wson-cwdm-channel-spacing? identityref
+--:(flexi-grid)
x--rw flexi-grid-channel-spacing? identityref
+--rw flexi-ncfg? identityref
+--rw flexi-n-step? uint8
augment /te:te/te:tunnels/te:tunnel/te:primary-paths
/te:primary-path/te:path-out-segment
/te:label-restrictions/te:label-restriction
/te:label-start/te:te-label/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
Guo, et al. Expires 2 September 2024 [Page 19]
Internet-Draft WDM Tunnel YANG Model March 2024
| +--rw dwdm-n? l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw flexi-n? l0-types:flexi-n
augment /te:te/te:tunnels/te:tunnel/te:primary-paths
/te:primary-path/te:path-out-segment
/te:label-restrictions/te:label-restriction/te:label-end
/te:te-label/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw dwdm-n? l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw flexi-n? l0-types:flexi-n
augment /te:te/te:tunnels/te:tunnel/te:primary-paths
/te:primary-path/te:path-out-segment
/te:label-restrictions/te:label-restriction/te:label-step
/te:technology:
+--:(wdm)
+--rw (l0-grid-type)?
+--:(fixed-dwdm)
| +--rw wson-dwdm-channel-spacing? identityref
+--:(cwdm)
| +--rw wson-cwdm-channel-spacing? identityref
+--:(flexi-grid)
x--rw flexi-grid-channel-spacing? identityref
+--rw flexi-ncfg? identityref
+--rw flexi-n-step? uint8
augment /te:te/te:tunnels/te:tunnel/te:primary-paths
/te:primary-path/te:computed-paths-properties
/te:computed-path-properties/te:path-properties
/te:path-route-objects/te:path-route-object/te:type
/te:label/te:label-hop/te:te-label/te:technology:
+--:(wdm)
+--ro (grid-type)?
+--:(fixed-dwdm)
| +--ro (fixed-single-or-super-channel)?
| +--:(single)
| | +--ro dwdm-n? l0-types:dwdm-n
| +--:(multi)
| +--ro subcarrier-dwdm-n* l0-types:dwdm-n
+--:(cwdm)
| +--ro cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--ro (single-or-super-channel)?
Guo, et al. Expires 2 September 2024 [Page 20]
Internet-Draft WDM Tunnel YANG Model March 2024
+--:(single)
| +--ro flexi-n? l0-types:flexi-n
| +--ro flexi-m? l0-types:flexi-m
x--:(super)
| x--ro subcarrier-flexi-n* [flexi-n]
| +--ro flexi-n l0-types:flexi-n
| +--ro flexi-m? l0-types:flexi-m
+--:(multi)
+--ro frequency-slots
+--ro frequency-slot* [flexi-n]
+--ro flexi-n l0-types:flexi-n
+--ro flexi-m? l0-types:flexi-m
augment /te:te/te:tunnels/te:tunnel/te:primary-paths
/te:primary-path/te:primary-reverse-path/te:optimizations
/te:algorithm/te:metric/te:optimization-metric
/te:explicit-route-exclude-objects
/te:route-object-exclude-object/te:type/te:label
/te:label-hop/te:te-label/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw (fixed-single-or-super-channel)?
| +--:(single)
| | +--rw dwdm-n? l0-types:dwdm-n
| +--:(multi)
| +--rw subcarrier-dwdm-n* l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
x--:(super)
| x--rw subcarrier-flexi-n* [flexi-n]
| +--rw flexi-n l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
+--:(multi)
+--rw frequency-slots
+--rw frequency-slot* [flexi-n]
+--rw flexi-n l0-types:flexi-n
+--rw flexi-m? l0-types:flexi-m
augment /te:te/te:tunnels/te:tunnel/te:primary-paths
/te:primary-path/te:primary-reverse-path/te:optimizations
/te:algorithm/te:metric/te:optimization-metric
/te:explicit-route-include-objects
/te:route-object-include-object/te:type/te:label
/te:label-hop/te:te-label/te:technology:
Guo, et al. Expires 2 September 2024 [Page 21]
Internet-Draft WDM Tunnel YANG Model March 2024
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw (fixed-single-or-super-channel)?
| +--:(single)
| | +--rw dwdm-n? l0-types:dwdm-n
| +--:(multi)
| +--rw subcarrier-dwdm-n* l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
x--:(super)
| x--rw subcarrier-flexi-n* [flexi-n]
| +--rw flexi-n l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
+--:(multi)
+--rw frequency-slots
+--rw frequency-slot* [flexi-n]
+--rw flexi-n l0-types:flexi-n
+--rw flexi-m? l0-types:flexi-m
augment /te:te/te:tunnels/te:tunnel/te:primary-paths
/te:primary-path/te:primary-reverse-path
/te:explicit-route-objects/te:route-object-exclude-always
/te:type/te:label/te:label-hop/te:te-label/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw (fixed-single-or-super-channel)?
| +--:(single)
| | +--rw dwdm-n? l0-types:dwdm-n
| +--:(multi)
| +--rw subcarrier-dwdm-n* l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
x--:(super)
| x--rw subcarrier-flexi-n* [flexi-n]
| +--rw flexi-n l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
+--:(multi)
Guo, et al. Expires 2 September 2024 [Page 22]
Internet-Draft WDM Tunnel YANG Model March 2024
+--rw frequency-slots
+--rw frequency-slot* [flexi-n]
+--rw flexi-n l0-types:flexi-n
+--rw flexi-m? l0-types:flexi-m
augment /te:te/te:tunnels/te:tunnel/te:primary-paths
/te:primary-path/te:primary-reverse-path
/te:explicit-route-objects
/te:route-object-include-exclude/te:type/te:label
/te:label-hop/te:te-label/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw (fixed-single-or-super-channel)?
| +--:(single)
| | +--rw dwdm-n? l0-types:dwdm-n
| +--:(multi)
| +--rw subcarrier-dwdm-n* l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
x--:(super)
| x--rw subcarrier-flexi-n* [flexi-n]
| +--rw flexi-n l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
+--:(multi)
+--rw frequency-slots
+--rw frequency-slot* [flexi-n]
+--rw flexi-n l0-types:flexi-n
+--rw flexi-m? l0-types:flexi-m
augment /te:te/te:tunnels/te:tunnel/te:primary-paths
/te:primary-path/te:primary-reverse-path
/te:path-in-segment/te:label-restrictions
/te:label-restriction/te:label-start/te:te-label
/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw dwdm-n? l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw flexi-n? l0-types:flexi-n
augment /te:te/te:tunnels/te:tunnel/te:primary-paths
/te:primary-path/te:primary-reverse-path
Guo, et al. Expires 2 September 2024 [Page 23]
Internet-Draft WDM Tunnel YANG Model March 2024
/te:path-in-segment/te:label-restrictions
/te:label-restriction/te:label-end/te:te-label
/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw dwdm-n? l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw flexi-n? l0-types:flexi-n
augment /te:te/te:tunnels/te:tunnel/te:primary-paths
/te:primary-path/te:primary-reverse-path
/te:path-in-segment/te:label-restrictions
/te:label-restriction/te:label-step/te:technology:
+--:(wdm)
+--rw (l0-grid-type)?
+--:(fixed-dwdm)
| +--rw wson-dwdm-channel-spacing? identityref
+--:(cwdm)
| +--rw wson-cwdm-channel-spacing? identityref
+--:(flexi-grid)
x--rw flexi-grid-channel-spacing? identityref
+--rw flexi-ncfg? identityref
+--rw flexi-n-step? uint8
augment /te:te/te:tunnels/te:tunnel/te:primary-paths
/te:primary-path/te:primary-reverse-path
/te:path-out-segment/te:label-restrictions
/te:label-restriction/te:label-start/te:te-label
/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw dwdm-n? l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw flexi-n? l0-types:flexi-n
augment /te:te/te:tunnels/te:tunnel/te:primary-paths
/te:primary-path/te:primary-reverse-path
/te:path-out-segment/te:label-restrictions
/te:label-restriction/te:label-end/te:te-label
/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw dwdm-n? l0-types:dwdm-n
+--:(cwdm)
Guo, et al. Expires 2 September 2024 [Page 24]
Internet-Draft WDM Tunnel YANG Model March 2024
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw flexi-n? l0-types:flexi-n
augment /te:te/te:tunnels/te:tunnel/te:primary-paths
/te:primary-path/te:primary-reverse-path
/te:path-out-segment/te:label-restrictions
/te:label-restriction/te:label-step/te:technology:
+--:(wdm)
+--rw (l0-grid-type)?
+--:(fixed-dwdm)
| +--rw wson-dwdm-channel-spacing? identityref
+--:(cwdm)
| +--rw wson-cwdm-channel-spacing? identityref
+--:(flexi-grid)
x--rw flexi-grid-channel-spacing? identityref
+--rw flexi-ncfg? identityref
+--rw flexi-n-step? uint8
augment /te:te/te:tunnels/te:tunnel/te:primary-paths
/te:primary-path/te:primary-reverse-path
/te:computed-paths-properties/te:computed-path-properties
/te:path-properties/te:path-route-objects
/te:path-route-object/te:type/te:label/te:label-hop
/te:te-label/te:technology:
+--:(wdm)
+--ro (grid-type)?
+--:(fixed-dwdm)
| +--ro (fixed-single-or-super-channel)?
| +--:(single)
| | +--ro dwdm-n? l0-types:dwdm-n
| +--:(multi)
| +--ro subcarrier-dwdm-n* l0-types:dwdm-n
+--:(cwdm)
| +--ro cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--ro (single-or-super-channel)?
+--:(single)
| +--ro flexi-n? l0-types:flexi-n
| +--ro flexi-m? l0-types:flexi-m
x--:(super)
| x--ro subcarrier-flexi-n* [flexi-n]
| +--ro flexi-n l0-types:flexi-n
| +--ro flexi-m? l0-types:flexi-m
+--:(multi)
+--ro frequency-slots
+--ro frequency-slot* [flexi-n]
+--ro flexi-n l0-types:flexi-n
+--ro flexi-m? l0-types:flexi-m
augment /te:te/te:tunnels/te:tunnel/te:secondary-paths
Guo, et al. Expires 2 September 2024 [Page 25]
Internet-Draft WDM Tunnel YANG Model March 2024
/te:secondary-path/te:optimizations/te:algorithm
/te:metric/te:optimization-metric
/te:explicit-route-exclude-objects
/te:route-object-exclude-object/te:type/te:label
/te:label-hop/te:te-label/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw (fixed-single-or-super-channel)?
| +--:(single)
| | +--rw dwdm-n? l0-types:dwdm-n
| +--:(multi)
| +--rw subcarrier-dwdm-n* l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
x--:(super)
| x--rw subcarrier-flexi-n* [flexi-n]
| +--rw flexi-n l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
+--:(multi)
+--rw frequency-slots
+--rw frequency-slot* [flexi-n]
+--rw flexi-n l0-types:flexi-n
+--rw flexi-m? l0-types:flexi-m
augment /te:te/te:tunnels/te:tunnel/te:secondary-paths
/te:secondary-path/te:optimizations/te:algorithm
/te:metric/te:optimization-metric
/te:explicit-route-include-objects
/te:route-object-include-object/te:type/te:label
/te:label-hop/te:te-label/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw (fixed-single-or-super-channel)?
| +--:(single)
| | +--rw dwdm-n? l0-types:dwdm-n
| +--:(multi)
| +--rw subcarrier-dwdm-n* l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
Guo, et al. Expires 2 September 2024 [Page 26]
Internet-Draft WDM Tunnel YANG Model March 2024
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
x--:(super)
| x--rw subcarrier-flexi-n* [flexi-n]
| +--rw flexi-n l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
+--:(multi)
+--rw frequency-slots
+--rw frequency-slot* [flexi-n]
+--rw flexi-n l0-types:flexi-n
+--rw flexi-m? l0-types:flexi-m
augment /te:te/te:tunnels/te:tunnel/te:secondary-paths
/te:secondary-path/te:explicit-route-objects
/te:route-object-exclude-always/te:type/te:label
/te:label-hop/te:te-label/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw (fixed-single-or-super-channel)?
| +--:(single)
| | +--rw dwdm-n? l0-types:dwdm-n
| +--:(multi)
| +--rw subcarrier-dwdm-n* l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
x--:(super)
| x--rw subcarrier-flexi-n* [flexi-n]
| +--rw flexi-n l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
+--:(multi)
+--rw frequency-slots
+--rw frequency-slot* [flexi-n]
+--rw flexi-n l0-types:flexi-n
+--rw flexi-m? l0-types:flexi-m
augment /te:te/te:tunnels/te:tunnel/te:secondary-paths
/te:secondary-path/te:explicit-route-objects
/te:route-object-include-exclude/te:type/te:label
/te:label-hop/te:te-label/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw (fixed-single-or-super-channel)?
| +--:(single)
Guo, et al. Expires 2 September 2024 [Page 27]
Internet-Draft WDM Tunnel YANG Model March 2024
| | +--rw dwdm-n? l0-types:dwdm-n
| +--:(multi)
| +--rw subcarrier-dwdm-n* l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
x--:(super)
| x--rw subcarrier-flexi-n* [flexi-n]
| +--rw flexi-n l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
+--:(multi)
+--rw frequency-slots
+--rw frequency-slot* [flexi-n]
+--rw flexi-n l0-types:flexi-n
+--rw flexi-m? l0-types:flexi-m
augment /te:te/te:tunnels/te:tunnel/te:secondary-paths
/te:secondary-path/te:path-in-segment
/te:label-restrictions/te:label-restriction
/te:label-start/te:te-label/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw dwdm-n? l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw flexi-n? l0-types:flexi-n
augment /te:te/te:tunnels/te:tunnel/te:secondary-paths
/te:secondary-path/te:path-in-segment
/te:label-restrictions/te:label-restriction/te:label-end
/te:te-label/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw dwdm-n? l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw flexi-n? l0-types:flexi-n
augment /te:te/te:tunnels/te:tunnel/te:secondary-paths
/te:secondary-path/te:path-in-segment
/te:label-restrictions/te:label-restriction/te:label-step
/te:technology:
+--:(wdm)
Guo, et al. Expires 2 September 2024 [Page 28]
Internet-Draft WDM Tunnel YANG Model March 2024
+--rw (l0-grid-type)?
+--:(fixed-dwdm)
| +--rw wson-dwdm-channel-spacing? identityref
+--:(cwdm)
| +--rw wson-cwdm-channel-spacing? identityref
+--:(flexi-grid)
x--rw flexi-grid-channel-spacing? identityref
+--rw flexi-ncfg? identityref
+--rw flexi-n-step? uint8
augment /te:te/te:tunnels/te:tunnel/te:secondary-paths
/te:secondary-path/te:path-out-segment
/te:label-restrictions/te:label-restriction
/te:label-start/te:te-label/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw dwdm-n? l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw flexi-n? l0-types:flexi-n
augment /te:te/te:tunnels/te:tunnel/te:secondary-paths
/te:secondary-path/te:path-out-segment
/te:label-restrictions/te:label-restriction/te:label-end
/te:te-label/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw dwdm-n? l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw flexi-n? l0-types:flexi-n
augment /te:te/te:tunnels/te:tunnel/te:secondary-paths
/te:secondary-path/te:path-out-segment
/te:label-restrictions/te:label-restriction/te:label-step
/te:technology:
+--:(wdm)
+--rw (l0-grid-type)?
+--:(fixed-dwdm)
| +--rw wson-dwdm-channel-spacing? identityref
+--:(cwdm)
| +--rw wson-cwdm-channel-spacing? identityref
+--:(flexi-grid)
x--rw flexi-grid-channel-spacing? identityref
+--rw flexi-ncfg? identityref
+--rw flexi-n-step? uint8
augment /te:te/te:tunnels/te:tunnel/te:secondary-paths
Guo, et al. Expires 2 September 2024 [Page 29]
Internet-Draft WDM Tunnel YANG Model March 2024
/te:secondary-path/te:computed-paths-properties
/te:computed-path-properties/te:path-properties
/te:path-route-objects/te:path-route-object/te:type
/te:label/te:label-hop/te:te-label/te:technology:
+--:(wdm)
+--ro (grid-type)?
+--:(fixed-dwdm)
| +--ro (fixed-single-or-super-channel)?
| +--:(single)
| | +--ro dwdm-n? l0-types:dwdm-n
| +--:(multi)
| +--ro subcarrier-dwdm-n* l0-types:dwdm-n
+--:(cwdm)
| +--ro cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--ro (single-or-super-channel)?
+--:(single)
| +--ro flexi-n? l0-types:flexi-n
| +--ro flexi-m? l0-types:flexi-m
x--:(super)
| x--ro subcarrier-flexi-n* [flexi-n]
| +--ro flexi-n l0-types:flexi-n
| +--ro flexi-m? l0-types:flexi-m
+--:(multi)
+--ro frequency-slots
+--ro frequency-slot* [flexi-n]
+--ro flexi-n l0-types:flexi-n
+--ro flexi-m? l0-types:flexi-m
augment /te:te/te:tunnels/te:tunnel/te:secondary-reverse-paths
/te:secondary-reverse-path/te:optimizations/te:algorithm
/te:metric/te:optimization-metric
/te:explicit-route-exclude-objects
/te:route-object-exclude-object/te:type/te:label
/te:label-hop/te:te-label/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw (fixed-single-or-super-channel)?
| +--:(single)
| | +--rw dwdm-n? l0-types:dwdm-n
| +--:(multi)
| +--rw subcarrier-dwdm-n* l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
Guo, et al. Expires 2 September 2024 [Page 30]
Internet-Draft WDM Tunnel YANG Model March 2024
| +--rw flexi-m? l0-types:flexi-m
x--:(super)
| x--rw subcarrier-flexi-n* [flexi-n]
| +--rw flexi-n l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
+--:(multi)
+--rw frequency-slots
+--rw frequency-slot* [flexi-n]
+--rw flexi-n l0-types:flexi-n
+--rw flexi-m? l0-types:flexi-m
augment /te:te/te:tunnels/te:tunnel/te:secondary-reverse-paths
/te:secondary-reverse-path/te:optimizations/te:algorithm
/te:metric/te:optimization-metric
/te:explicit-route-include-objects
/te:route-object-include-object/te:type/te:label
/te:label-hop/te:te-label/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw (fixed-single-or-super-channel)?
| +--:(single)
| | +--rw dwdm-n? l0-types:dwdm-n
| +--:(multi)
| +--rw subcarrier-dwdm-n* l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
x--:(super)
| x--rw subcarrier-flexi-n* [flexi-n]
| +--rw flexi-n l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
+--:(multi)
+--rw frequency-slots
+--rw frequency-slot* [flexi-n]
+--rw flexi-n l0-types:flexi-n
+--rw flexi-m? l0-types:flexi-m
augment /te:te/te:tunnels/te:tunnel/te:secondary-reverse-paths
/te:secondary-reverse-path/te:explicit-route-objects
/te:route-object-exclude-always/te:type/te:label
/te:label-hop/te:te-label/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw (fixed-single-or-super-channel)?
Guo, et al. Expires 2 September 2024 [Page 31]
Internet-Draft WDM Tunnel YANG Model March 2024
| +--:(single)
| | +--rw dwdm-n? l0-types:dwdm-n
| +--:(multi)
| +--rw subcarrier-dwdm-n* l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
x--:(super)
| x--rw subcarrier-flexi-n* [flexi-n]
| +--rw flexi-n l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
+--:(multi)
+--rw frequency-slots
+--rw frequency-slot* [flexi-n]
+--rw flexi-n l0-types:flexi-n
+--rw flexi-m? l0-types:flexi-m
augment /te:te/te:tunnels/te:tunnel/te:secondary-reverse-paths
/te:secondary-reverse-path/te:explicit-route-objects
/te:route-object-include-exclude/te:type/te:label
/te:label-hop/te:te-label/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw (fixed-single-or-super-channel)?
| +--:(single)
| | +--rw dwdm-n? l0-types:dwdm-n
| +--:(multi)
| +--rw subcarrier-dwdm-n* l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
x--:(super)
| x--rw subcarrier-flexi-n* [flexi-n]
| +--rw flexi-n l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
+--:(multi)
+--rw frequency-slots
+--rw frequency-slot* [flexi-n]
+--rw flexi-n l0-types:flexi-n
+--rw flexi-m? l0-types:flexi-m
Guo, et al. Expires 2 September 2024 [Page 32]
Internet-Draft WDM Tunnel YANG Model March 2024
augment /te:te/te:tunnels/te:tunnel/te:secondary-reverse-paths
/te:secondary-reverse-path/te:path-in-segment
/te:label-restrictions/te:label-restriction
/te:label-start/te:te-label/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw dwdm-n? l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw flexi-n? l0-types:flexi-n
augment /te:te/te:tunnels/te:tunnel/te:secondary-reverse-paths
/te:secondary-reverse-path/te:path-in-segment
/te:label-restrictions/te:label-restriction/te:label-end
/te:te-label/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw dwdm-n? l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw flexi-n? l0-types:flexi-n
augment /te:te/te:tunnels/te:tunnel/te:secondary-reverse-paths
/te:secondary-reverse-path/te:path-in-segment
/te:label-restrictions/te:label-restriction/te:label-step
/te:technology:
+--:(wdm)
+--rw (l0-grid-type)?
+--:(fixed-dwdm)
| +--rw wson-dwdm-channel-spacing? identityref
+--:(cwdm)
| +--rw wson-cwdm-channel-spacing? identityref
+--:(flexi-grid)
x--rw flexi-grid-channel-spacing? identityref
+--rw flexi-ncfg? identityref
+--rw flexi-n-step? uint8
augment /te:te/te:tunnels/te:tunnel/te:secondary-reverse-paths
/te:secondary-reverse-path/te:path-out-segment
/te:label-restrictions/te:label-restriction
/te:label-start/te:te-label/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw dwdm-n? l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
Guo, et al. Expires 2 September 2024 [Page 33]
Internet-Draft WDM Tunnel YANG Model March 2024
+--:(flexi-grid)
+--rw flexi-n? l0-types:flexi-n
augment /te:te/te:tunnels/te:tunnel/te:secondary-reverse-paths
/te:secondary-reverse-path/te:path-out-segment
/te:label-restrictions/te:label-restriction/te:label-end
/te:te-label/te:technology:
+--:(wdm)
+--rw (grid-type)?
+--:(fixed-dwdm)
| +--rw dwdm-n? l0-types:dwdm-n
+--:(cwdm)
| +--rw cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--rw flexi-n? l0-types:flexi-n
augment /te:te/te:tunnels/te:tunnel/te:secondary-reverse-paths
/te:secondary-reverse-path/te:path-out-segment
/te:label-restrictions/te:label-restriction/te:label-step
/te:technology:
+--:(wdm)
+--rw (l0-grid-type)?
+--:(fixed-dwdm)
| +--rw wson-dwdm-channel-spacing? identityref
+--:(cwdm)
| +--rw wson-cwdm-channel-spacing? identityref
+--:(flexi-grid)
x--rw flexi-grid-channel-spacing? identityref
+--rw flexi-ncfg? identityref
+--rw flexi-n-step? uint8
augment /te:te/te:tunnels/te:tunnel/te:secondary-reverse-paths
/te:secondary-reverse-path/te:computed-paths-properties
/te:computed-path-properties/te:path-properties
/te:path-route-objects/te:path-route-object/te:type
/te:label/te:label-hop/te:te-label/te:technology:
+--:(wdm)
+--ro (grid-type)?
+--:(fixed-dwdm)
| +--ro (fixed-single-or-super-channel)?
| +--:(single)
| | +--ro dwdm-n? l0-types:dwdm-n
| +--:(multi)
| +--ro subcarrier-dwdm-n* l0-types:dwdm-n
+--:(cwdm)
| +--ro cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--ro (single-or-super-channel)?
+--:(single)
| +--ro flexi-n? l0-types:flexi-n
| +--ro flexi-m? l0-types:flexi-m
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x--:(super)
| x--ro subcarrier-flexi-n* [flexi-n]
| +--ro flexi-n l0-types:flexi-n
| +--ro flexi-m? l0-types:flexi-m
+--:(multi)
+--ro frequency-slots
+--ro frequency-slot* [flexi-n]
+--ro flexi-n l0-types:flexi-n
+--ro flexi-m? l0-types:flexi-m
augment /te:te/te:lsps/te:lsp/te:lsp-actual-route-information
/te:lsp-actual-route-information/te:type/te:label
/te:label-hop/te:te-label/te:technology:
+--:(wdm)
+--ro (grid-type)?
+--:(fixed-dwdm)
| +--ro (fixed-single-or-super-channel)?
| +--:(single)
| | +--ro dwdm-n? l0-types:dwdm-n
| +--:(multi)
| +--ro subcarrier-dwdm-n* l0-types:dwdm-n
+--:(cwdm)
| +--ro cwdm-n? l0-types:cwdm-n
+--:(flexi-grid)
+--ro (single-or-super-channel)?
+--:(single)
| +--ro flexi-n? l0-types:flexi-n
| +--ro flexi-m? l0-types:flexi-m
x--:(super)
| x--ro subcarrier-flexi-n* [flexi-n]
| +--ro flexi-n l0-types:flexi-n
| +--ro flexi-m? l0-types:flexi-m
+--:(multi)
+--ro frequency-slots
+--ro frequency-slot* [flexi-n]
+--ro flexi-n l0-types:flexi-n
+--ro flexi-m? l0-types:flexi-m
Figure 2: WDM Tunnel YANG tree
5.2. YANG Code
<CODE BEGINS> file "ietf-wdm-tunnel@2023-10-22.yang"
module ietf-wdm-tunnel {
yang-version 1.1;
namespace
"urn:ietf:params:xml:ns:yang:ietf-wdm-tunnel";
prefix "wdm-tnl";
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import ietf-te {
prefix "te";
reference
"RFC YYYY: A YANG Data Model for Traffic Engineering Tunnels,
Label Switched Paths and Interfaces.";
}
/* RFC Ed.: replace YYYY with the number assigned
to the RFC once draft-ietf-teas-yang-te becomes an RFC.*/
import ietf-layer0-types {
prefix "l0-types";
}
organization
"IETF CCAMP Working Group";
contact
"WG Web: <http://tools.ietf.org/wg/ccamp/>
WG List: <mailto:ccamp@ietf.org>
Editor: Jorge E. Lopez de Vergara
<jorge.lopez_vergara@uam.es>
Editor: Daniel Perdices
<daniel.perdices@naudit.es>
Editor: Victor Lopez
<victor.lopez@nokia.com>
Editor: Italo Busi
<italo.busi@nokia.com>
Editor: Aihua Guo
<aihuaguo.ietf@gmail.com>";
description
"This module defines a YANG data model for configuring
and managing Wavelength-Division Multiplexing (WDM) switched
optical tunnels.
The model fully conforms to the Network Management
Datastore Architecture (NMDA).
Copyright (c) 2021 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
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set forth in Section 4.c of the IETF Trust's Legal Provisions
Relating to IETF Documents
(https://trustee.ietf.org/license-info).
This version of this YANG module is part of RFC XXXX; see
the RFC itself for full legal notices.";
revision "2023-10-22" {
description
"Updated revision with combined WSON and Flexi-grid tunnel
YANG model";
reference
"RFC XXXX: YANG data model for WDM tunnels";
// RFC Ed.: replace XXXX with actual RFC number, update date
// information and remove this note
}
/*
* Groupings
*/
grouping additional-transceiver-configuration-constraints {
description
"This grouping defines additional optional constraints for
transceiver configurations related to tunnel selection.
These constraints further limit the resources available
to the tunnel. All constraints operate inclusively, using
an AND logic. For example, if a specific frequency range
is selected, the tunnel must also be constrained to match
only that range.
When these constraints are combined with the operational
mode, the list of operational modes should exclude any
modes that cannot satisfy the additional constraints.
For instance, if the frequency is restricted to the C-band,
the list of operational modes should not include any modes
applicable only to the L-band.";
container tx-tune-constraints {
description
"The permissible tuning frequency range for the
transmitter.";
uses l0-types:transmitter-tuning-range;
}
leaf-list line-coding-bitrate {
type identityref {
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base l0-types:line-coding;
}
description
"The list of the bit rate/line coding of the optical
tributary signal that constrains the configuration of
the transceiver.";
reference
"ITU-T G.698.2 section 7.1.2";
}
leaf tx-channel-power {
type l0-types:power-dbm;
description
"The preferred channel transmit power.";
}
leaf preferred-rx-channel-power {
type l0-types:power-dbm;
description
"The preferred channel received power.";
}
}
grouping transceiver-constraints {
description
"This grouping defines constraints for transceiver
configurations";
leaf-list operational-modes {
type string {
length "1..255";
}
description
"List of operational mode ids of the transceiver.";
}
uses additional-transceiver-configuration-constraints;
}
grouping transceiver-config {
description
"This grouping defines explicit transceiver
configurations.";
leaf transponder-id {
type uint32;
description "transponder identifier";
}
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list transceivers {
key "lane-id";
description
"List of transceivers for all lanes.";
leaf lane-id {
type uint8;
must '. >= 1' {
error-message
"Lane identifier must be greater than or equal to 1.";
}
description
"Lane identifier starting from 1.";
}
leaf transceiver-id {
type uint32;
description
"transceiver identifier";
}
uses transceiver-constraints;
}
}
grouping path-transceiver-config {
description
"This grouping defines a set of transceivers on a node,
serving as either starting transceivers, terminating
transceivers, or regenerators. The position of each
transceiver is determined by the direction of the path.
For instance, consider the following uni-directional
path with nodes labeled A, B, and C, where a, b1, b2,
and c correspond to transceivers on the nodes:
A(a) --> (b1)B(b2) --> (c)C
- Use path-out-transceiver for the starting transceiver
a and the regenerator transceiver b2.
- Use path-in-transceiver for the terminating transceiver
c and the regenerator transceiver b1.";
container path-in-transceiver {
description
"Constraints for incoming direction transceiver
configurations";
uses transceiver-config;
}
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container path-out-transceiver {
description
"Constraints for outgoing direction transceiver
configurations";
uses transceiver-config;
}
}
grouping transceiver-state {
description
"This grouping includes common transceiver state
information.";
leaf transponder-id {
type uint32;
description "transponder identifier";
}
list transceivers {
key "lane-id";
description
"List of transceivers for all lanes.";
leaf lane-id {
type uint8;
must '. >= 1' {
error-message
"Lane identifier must be greater than or equal to 1.";
}
description
"Lane identifier starting from 1.";
}
leaf transceiver-id {
type uint32;
description
"transceiver identifier";
}
uses l0-types:common-transceiver-readonly-param;
}
}
grouping path-transceiver-state {
description
"This grouping defines the state of transceivers on a
node functioning as starting, terminating transceivers,
or regenerators.";
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container path-in-transceiver {
description
"Transceiver state on the incoming direction.";
uses transceiver-state;
}
container path-out-transceiver {
description
"Transceiver state on the outgoing direction.";
uses transceiver-state;
}
}
grouping global-transceiver-constraint {
description
"This grouping defines the constraints for transceiver
configurations.";
container transceiver-constraint {
description
"Constraints for transceiver configurations";
uses transceiver-constraints;
}
}
grouping wdm-constraint {
description
"Grouping for WDM tunnel constraints";
container wdm-constraint {
description
"WDM tunnel constraints.";
uses global-transceiver-constraint;
uses l0-types:l0-path-constraints;
leaf use-regen {
type boolean;
default false;
description
"Indicate whether or not regenerators (e.g. 3R) should be
considered. When this parameter is set to true, the
tunnel path may include a regen when the path is not
feasible for direct optical reach.";
}
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leaf wavelength-conversion {
when '../use-regen = "true"' {
description
"Regenerator must be enabled for wavelength conversion
to be considered.";
}
type boolean;
default false;
description
"Indicate whether or not wavelength conversion is allowed
along the tunnel path. Applicable only when 3R
regeneration is enabled.";
}
uses l0-types:l0-tunnel-attributes;
leaf guard-band-size {
type l0-types:frequency-thz;
description
"Guard band size in THz.";
}
leaf matching-fwd-rev-wavelength {
type boolean;
default true;
description
"Indicate whether or not the assigned channels for
forward and reverse wavelength path must be the same.";
}
leaf allow-retuning {
type boolean;
default false;
description
"Indicate whether or not re-tuning is allowed when one or
more paths of a WDM tunnel is being restored. Typically,
wavelength retuning is not preferred for wavelength
planning considerations.";
}
leaf delta-power {
type l0-types:power-ratio;
description
"Delta power in dB indicating the per-channel power
deviation from the nominal power per channel at the
output of an OMS.";
}
}
}
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grouping wdm-path-state {
description
"Grouping for WDM path state.";
container wdm-path-state {
config false;
description
"WDM path state.";
leaf gsnr {
type l0-types:snr;
description
"Actual received GSNR for the WDM path.";
}
}
}
/*
* Data nodes
*/
/*
* Global constraints for WDM tunnel
*/
augment "/te:te/te:tunnels/te:tunnel" {
description
"Augment with additional parameters required for WDM
tunnel configurations.";
uses wdm-constraint;
}
/*
* Transceiver constraints for primary path
* Applicable to starting, terminating and regenerator
* transceivers.
*/
augment "/te:te/te:tunnels/te:tunnel/te:primary-paths/"
+ "te:primary-path/te:explicit-route-objects/"
+ "te:route-object-exclude-always/te:type/"
+ "te:numbered-node-hop/te:numbered-node-hop" {
description
"Augment TE primary path with transceiver configurations.";
uses path-transceiver-config;
}
/*
* Transceiver constraints for primary reverse path
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* Applicable to starting, terminating and regenerator
* transceivers.
*/
augment "/te:te/te:tunnels/te:tunnel/te:primary-paths/"
+ "te:primary-path/te:primary-reverse-path/"
+ "te:explicit-route-objects/"
+ "te:route-object-exclude-always/te:type/"
+ "te:numbered-node-hop/te:numbered-node-hop" {
description
"Augment TE primary reverse path with transceiver
configurations.";
uses path-transceiver-config;
}
/*
* Transceiver constraints for secondary path
* Applicable to starting, terminating and regenerator
* transceivers.
*/
augment "/te:te/te:tunnels/te:tunnel/te:secondary-paths/"
+ "te:secondary-path/te:explicit-route-objects/"
+ "te:route-object-exclude-always/te:type/"
+ "te:numbered-node-hop/te:numbered-node-hop" {
description
"Augment TE secondary path with transceiver configurations.";
uses path-transceiver-config;
}
/*
* Transceiver constraints for secondary reverse path
* Applicable to starting, terminating and regenerator
* transceivers.
*/
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:secondary-reverse-paths/"
+ "te:secondary-reverse-path/"
+ "te:explicit-route-objects/"
+ "te:route-object-exclude-always/te:type/"
+ "te:numbered-node-hop/te:numbered-node-hop" {
description
"Augment TE secondary reverse path with transceiver
configurations.";
uses path-transceiver-config;
}
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/*
* Computed path properties for primary path.
*/
augment "/te:te/te:tunnels/te:tunnel/te:primary-paths/"
+ "te:primary-path/te:computed-paths-properties/"
+ "te:computed-path-properties/te:path-properties" {
description
"Augment TE computed primary path with WDM properties.";
uses l0-types:l0-path-properties;
}
/*
* Computed path properties for primary reverse path.
*/
augment "/te:te/te:tunnels/te:tunnel/te:primary-paths/"
+ "te:primary-path/te:primary-reverse-path/"
+ "te:computed-paths-properties/"
+ "te:computed-path-properties/te:path-properties" {
description
"Augment TE computed primary reverse path with WDM
properties.";
uses l0-types:l0-path-properties;
}
/*
* Computed path properties for secondary path.
*/
augment "/te:te/te:tunnels/te:tunnel/te:secondary-paths/"
+ "te:secondary-path/te:computed-paths-properties/"
+ "te:computed-path-properties/te:path-properties" {
description
"Augment TE computed secondary path with WDM properties.";
uses l0-types:l0-path-properties;
}
/*
* Computed path properties for secondary reverse path.
*/
augment "/te:te/te:tunnels/te:tunnel/te:secondary-reverse-paths/"
+ "te:secondary-reverse-path/te:computed-paths-properties/"
+ "te:computed-path-properties/te:path-properties" {
description
"Augment TE computed secondary reverse path with WDM
properties.";
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uses l0-types:l0-path-properties;
}
/*
* Computed transceiver properties for primary path.
*/
augment "/te:te/te:tunnels/te:tunnel/te:primary-paths/"
+ "te:primary-path/te:computed-paths-properties/"
+ "te:computed-path-properties/te:path-properties/"
+ "te:path-route-objects/te:path-route-object/"
+ "te:type/te:numbered-node-hop/te:numbered-node-hop" {
description
"Augment TE computed primary path with transceiver
properties.";
uses path-transceiver-state;
}
/*
* Computed transceiver properties for primary reverse path.
*/
augment "/te:te/te:tunnels/te:tunnel/te:primary-paths/"
+ "te:primary-path/te:primary-reverse-path/"
+ "te:computed-paths-properties/"
+ "te:computed-path-properties/te:path-properties/"
+ "te:path-route-objects/te:path-route-object/"
+ "te:type/te:numbered-node-hop/te:numbered-node-hop" {
description
"Augment TE computed primary path with transceiver
properties.";
uses path-transceiver-state;
}
/*
* Computed transceiver properties for secondary path.
*/
augment "/te:te/te:tunnels/te:tunnel/te:secondary-paths/"
+ "te:secondary-path/te:computed-paths-properties/"
+ "te:computed-path-properties/te:path-properties/"
+ "te:path-route-objects/te:path-route-object/"
+ "te:type/te:numbered-node-hop/te:numbered-node-hop" {
description
"Augment TE computed primary path with transceiver
properties.";
uses path-transceiver-state;
}
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/*
* Computed transceiver properties for secondary reverse path.
*/
augment "/te:te/te:tunnels/te:tunnel/te:secondary-reverse-paths/"
+ "te:secondary-reverse-path/te:computed-paths-properties/"
+ "te:computed-path-properties/te:path-properties/"
+ "te:path-route-objects/te:path-route-object/"
+ "te:type/te:numbered-node-hop/te:numbered-node-hop" {
description
"Augment TE computed primary path with transceiver
properties.";
uses path-transceiver-state;
}
/*
* WDM path state
*/
augment "/te:te/te:lsps/te:lsp/"
+ "te:lsp-actual-route-information" {
description
"Augment TE LSP to with WDM path state.";
uses wdm-path-state;
}
/*
* Actual transceiver state.
*/
augment "/te:te/te:lsps/te:lsp/"
+ "te:lsp-actual-route-information/"
+ "te:lsp-actual-route-information/te:type/"
+ "te:numbered-node-hop/te:numbered-node-hop" {
description
"Augment TE LSP to with WDM path state.";
uses path-transceiver-state;
}
/*
* Augment TE label range information
*/
augment "/te:te/te:globals/te:named-path-constraints/"
+ "te:named-path-constraint/te:path-in-segment/"
+ "te:label-restrictions/te:label-restriction" {
description
"Augment TE label range information for the ingress segment
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of the named path constraint.";
uses l0-types:wdm-label-range-info;
}
augment "/te:te/te:globals/te:named-path-constraints/"
+ "te:named-path-constraint/te:path-out-segment/"
+ "te:label-restrictions/"
+ "te:label-restriction" {
description
"Augment TE label range information for the egress segment
of the named path constraint.";
uses l0-types:wdm-label-range-info;
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:primary-paths/te:primary-path/"
+ "te:path-in-segment/te:label-restrictions/"
+ "te:label-restriction" {
description
"Augment TE label range information for the ingress segment
of the primay path.";
uses l0-types:wdm-label-range-info;
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:primary-paths/te:primary-path/"
+ "te:path-out-segment/te:label-restrictions/"
+ "te:label-restriction" {
description
"Augment TE label range information for the egress segment
of the primay path.";
uses l0-types:wdm-label-range-info;
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:primary-paths/te:primary-path/"
+ "te:primary-reverse-path/"
+ "te:path-in-segment/te:label-restrictions/"
+ "te:label-restriction" {
description
"Augment TE label range information for the ingress segment
of the primay reverse path.";
uses l0-types:wdm-label-range-info;
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:primary-paths/te:primary-path/"
+ "te:primary-reverse-path/"
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+ "te:path-out-segment/te:label-restrictions/"
+ "te:label-restriction" {
description
"Augment TE label range information for the egress segment
of the primay reverse path.";
uses l0-types:wdm-label-range-info;
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:secondary-paths/te:secondary-path/"
+ "te:path-in-segment/te:label-restrictions/"
+ "te:label-restriction" {
description
"Augment TE label range information for the ingress segment
of the secondary path.";
uses l0-types:wdm-label-range-info;
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:secondary-paths/te:secondary-path/"
+ "te:path-out-segment/te:label-restrictions/"
+ "te:label-restriction" {
description
"Augment TE label range information for the egress segment
of the secondary path.";
uses l0-types:wdm-label-range-info;
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:secondary-reverse-paths/te:secondary-reverse-path/"
+ "te:path-in-segment/te:label-restrictions/"
+ "te:label-restriction" {
description
"Augment TE label range information for the ingress segment
of the secondary reverse path.";
uses l0-types:wdm-label-range-info;
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:secondary-reverse-paths/te:secondary-reverse-path/"
+ "te:path-out-segment/te:label-restrictions/"
+ "te:label-restriction" {
description
"Augment TE label range information for the egress segment
of the secondary reverse path.";
uses l0-types:wdm-label-range-info;
}
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/*
* Augment TE label.
*/
augment "/te:te/te:globals/te:named-path-constraints/"
+ "te:named-path-constraint/"
+ "te:explicit-route-objects/"
+ "te:route-object-exclude-always/te:type/te:label/"
+ "te:label-hop/te:te-label/te:technology" {
description
"Augment TE label hop for the explicit route objects always
excluded by the path computation with the named path
constraint.";
case wdm {
uses l0-types:wdm-label-hop;
}
}
augment "/te:te/te:globals/te:named-path-constraints/"
+ "te:named-path-constraint/"
+ "te:explicit-route-objects/"
+ "te:route-object-include-exclude/te:type/te:label/"
+ "te:label-hop/te:te-label/te:technology" {
description
"Augment TE label hop for the explicit route objects included
or excluded by the path computation with the named path
constraint.";
case wdm {
uses l0-types:wdm-label-hop;
}
}
augment "/te:te/te:globals/te:named-path-constraints/"
+ "te:named-path-constraint/te:path-in-segment/"
+ "te:label-restrictions/"
+ "te:label-restriction/te:label-start/"
+ "te:te-label/te:technology" {
description
"Augment TE label range start for the ingress segment
of the named path constraint.";
case wdm {
uses l0-types:wdm-label-start-end;
}
}
augment "/te:te/te:globals/te:named-path-constraints/"
+ "te:named-path-constraint/te:path-in-segment/"
+ "te:label-restrictions/"
+ "te:label-restriction/te:label-end/"
+ "te:te-label/te:technology" {
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description
"Augment TE label range end for the ingress segment
of the named path constraint.";
case wdm {
uses l0-types:wdm-label-start-end;
}
}
augment "/te:te/te:globals/te:named-path-constraints/"
+ "te:named-path-constraint/te:path-in-segment/"
+ "te:label-restrictions/te:label-restriction/"
+ "te:label-step/te:technology" {
description
"Augment TE label range step for the ingress segment
of the named path constraint.";
case wdm {
uses l0-types:wdm-label-step;
}
}
augment "/te:te/te:globals/te:named-path-constraints/"
+ "te:named-path-constraint/te:path-out-segment/"
+ "te:label-restrictions/"
+ "te:label-restriction/te:label-start/"
+ "te:te-label/te:technology" {
description
"Augment TE label range start for the egress segment
of the named path constraint.";
case wdm {
uses l0-types:wdm-label-start-end;
}
}
augment "/te:te/te:globals/te:named-path-constraints/"
+ "te:named-path-constraint/te:path-out-segment/"
+ "te:label-restrictions/"
+ "te:label-restriction/te:label-end/"
+ "te:te-label/te:technology" {
description
"Augment TE label range end for the egress segment
of the named path constraint.";
case wdm {
uses l0-types:wdm-label-start-end;
}
}
augment "/te:te/te:globals/te:named-path-constraints/"
+ "te:named-path-constraint/te:path-out-segment/"
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+ "te:label-restrictions/te:label-restriction/"
+ "te:label-step/te:technology" {
description
"Augment TE label range step for the egress segment
of the named path constraint.";
case wdm {
uses l0-types:wdm-label-step;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:primary-paths/te:primary-path/"
+ "te:optimizations/te:algorithm/te:metric/"
+ "te:optimization-metric/te:explicit-route-exclude-objects/"
+ "te:route-object-exclude-object/te:type/te:label/"
+ "te:label-hop/te:te-label/te:technology" {
description
"Augment TE label hop for the optimization of the explicit
route objects excluded by the path computation of the primary
path.";
case wdm {
uses l0-types:wdm-label-hop;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:primary-paths/te:primary-path/"
+ "te:optimizations/te:algorithm/te:metric/"
+ "te:optimization-metric/te:explicit-route-include-objects/"
+ "te:route-object-include-object/te:type/te:label/"
+ "te:label-hop/te:te-label/te:technology" {
description
"Augment TE label hop for the optimization of the explicit
route objects included by the path computation of the primary
path.";
case wdm {
uses l0-types:wdm-label-hop;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:primary-paths/te:primary-path/"
+ "te:explicit-route-objects/"
+ "te:route-object-exclude-always/te:type/te:label/"
+ "te:label-hop/te:te-label/te:technology" {
description
"Augment TE label hop for the explicit route objects always
excluded by the path computation of the primary path.";
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case wdm {
uses l0-types:wdm-label-hop;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:primary-paths/te:primary-path/"
+ "te:explicit-route-objects/"
+ "te:route-object-include-exclude/te:type/te:label/"
+ "te:label-hop/te:te-label/te:technology" {
description
"Augment TE label hop for the explicit route objects included
or excluded by the path computation of the primary path.";
case wdm {
uses l0-types:wdm-label-hop;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:primary-paths/te:primary-path/"
+ "te:path-in-segment/te:label-restrictions/"
+ "te:label-restriction/te:label-start/"
+ "te:te-label/te:technology" {
description
"Augment TE label range start for the ingress segment
of the primay path.";
case wdm {
uses l0-types:wdm-label-start-end;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:primary-paths/te:primary-path/"
+ "te:path-in-segment/te:label-restrictions/"
+ "te:label-restriction/te:label-end/"
+ "te:te-label/te:technology" {
description
"Augment TE label range end for the ingress segment
of the primay path.";
case wdm {
uses l0-types:wdm-label-start-end;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:primary-paths/te:primary-path/"
+ "te:path-in-segment/te:label-restrictions/"
+ "te:label-restriction/te:label-step/te:technology" {
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description
"Augment TE label range step for the ingress segment
of the primay path.";
case wdm {
uses l0-types:wdm-label-step;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:primary-paths/te:primary-path/"
+ "te:path-out-segment/te:label-restrictions/"
+ "te:label-restriction/te:label-start/"
+ "te:te-label/te:technology" {
description
"Augment TE label range start for the egress segment
of the primay path.";
case wdm {
uses l0-types:wdm-label-start-end;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:primary-paths/te:primary-path/"
+ "te:path-out-segment/te:label-restrictions/"
+ "te:label-restriction/te:label-end/"
+ "te:te-label/te:technology" {
description
"Augment TE label range end for the egress segment
of the primay path.";
case wdm {
uses l0-types:wdm-label-start-end;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:primary-paths/te:primary-path/"
+ "te:path-out-segment/te:label-restrictions/"
+ "te:label-restriction/te:label-step/te:technology" {
description
"Augment TE label range end for the egress segment
of the primay path.";
case wdm {
uses l0-types:wdm-label-step;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:primary-paths/te:primary-path/"
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+ "te:computed-paths-properties/"
+ "te:computed-path-properties/te:path-properties/"
+ "te:path-route-objects/te:path-route-object/"
+ "te:type/te:label/"
+ "te:label-hop/te:te-label/te:technology" {
description
"Augment TE label hop for the route object of the computed
primary path.";
case wdm {
uses l0-types:wdm-label-hop;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:primary-paths/te:primary-path/"
+ "te:primary-reverse-path/"
+ "te:optimizations/te:algorithm/te:metric/"
+ "te:optimization-metric/te:explicit-route-exclude-objects/"
+ "te:route-object-exclude-object/te:type/te:label/"
+ "te:label-hop/te:te-label/te:technology" {
description
"Augment TE label hop for the optimization of the explicit
route objects excluded by the path computation of the primary
reverse path.";
case wdm {
uses l0-types:wdm-label-hop;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:primary-paths/te:primary-path/"
+ "te:primary-reverse-path/"
+ "te:optimizations/te:algorithm/te:metric/"
+ "te:optimization-metric/te:explicit-route-include-objects/"
+ "te:route-object-include-object/te:type/te:label/"
+ "te:label-hop/te:te-label/te:technology" {
description
"Augment TE label hop for the optimization of the explicit
route objects included by the path computation of the primary
reverse path.";
case wdm {
uses l0-types:wdm-label-hop;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:primary-paths/te:primary-path/"
+ "te:primary-reverse-path/"
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+ "te:explicit-route-objects/"
+ "te:route-object-exclude-always/"
+ "te:type/te:label/"
+ "te:label-hop/te:te-label/te:technology" {
description
"Augment TE label hop for the explicit route objects always
excluded by the path computation of the primary reverse
path.";
case wdm {
uses l0-types:wdm-label-hop;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:primary-paths/te:primary-path/"
+ "te:primary-reverse-path/"
+ "te:explicit-route-objects/"
+ "te:route-object-include-exclude/"
+ "te:type/te:label/"
+ "te:label-hop/te:te-label/te:technology" {
description
"Augment TE label hop for the explicit route objects included
or excluded by the path computation of the primary reverse
path.";
case wdm {
uses l0-types:wdm-label-hop;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:primary-paths/te:primary-path/"
+ "te:primary-reverse-path/"
+ "te:path-in-segment/te:label-restrictions/"
+ "te:label-restriction/te:label-start/"
+ "te:te-label/te:technology" {
description
"Augment TE label range start for the ingress segment
of the primay reverse path.";
case wdm {
uses l0-types:wdm-label-start-end;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:primary-paths/te:primary-path/"
+ "te:primary-reverse-path/"
+ "te:path-in-segment/te:label-restrictions/"
+ "te:label-restriction/te:label-end/"
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+ "te:te-label/te:technology" {
description
"Augment TE label range end for the ingress segment
of the primay reverse path.";
case wdm {
uses l0-types:wdm-label-start-end;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:primary-paths/te:primary-path/"
+ "te:primary-reverse-path/"
+ "te:path-in-segment/te:label-restrictions/"
+ "te:label-restriction/te:label-step/te:technology" {
description
"Augment TE label range step for the ingress segment
of the primay reverse path.";
case wdm {
uses l0-types:wdm-label-step;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:primary-paths/te:primary-path/"
+ "te:primary-reverse-path/"
+ "te:path-out-segment/te:label-restrictions/"
+ "te:label-restriction/te:label-start/"
+ "te:te-label/te:technology" {
description
"Augment TE label range start for the egress segment
of the primay reverse path.";
case wdm {
uses l0-types:wdm-label-start-end;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:primary-paths/te:primary-path/"
+ "te:primary-reverse-path/"
+ "te:path-out-segment/te:label-restrictions/"
+ "te:label-restriction/te:label-end/"
+ "te:te-label/te:technology" {
description
"Augment TE label range end for the egress segment
of the primay reverse path.";
case wdm {
uses l0-types:wdm-label-start-end;
}
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}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:primary-paths/te:primary-path/"
+ "te:primary-reverse-path/"
+ "te:path-out-segment/te:label-restrictions/"
+ "te:label-restriction/te:label-step/te:technology" {
description
"Augment TE label range step for the egress segment
of the primay reverse path.";
case wdm {
uses l0-types:wdm-label-step;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:primary-paths/te:primary-path/"
+ "te:primary-reverse-path/"
+ "te:computed-paths-properties/te:computed-path-properties/"
+ "te:path-properties/te:path-route-objects/"
+ "te:path-route-object/te:type/te:label/"
+ "te:label-hop/te:te-label/te:technology" {
description
"Augment TE label hop for the route object of the computed
primary reverse path.";
case wdm {
uses l0-types:wdm-label-hop;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:secondary-paths/te:secondary-path/"
+ "te:optimizations/te:algorithm/te:metric/"
+ "te:optimization-metric/te:explicit-route-exclude-objects/"
+ "te:route-object-exclude-object/te:type/te:label/"
+ "te:label-hop/te:te-label/te:technology" {
description
"Augment TE label hop for the optimization of the explicit
route objects excluded by the path computation of the
secondary path.";
case wdm {
uses l0-types:wdm-label-hop;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:secondary-paths/te:secondary-path/"
+ "te:optimizations/te:algorithm/te:metric/"
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+ "te:optimization-metric/te:explicit-route-include-objects/"
+ "te:route-object-include-object/te:type/te:label/"
+ "te:label-hop/te:te-label/te:technology" {
description
"Augment TE label hop for the optimization of the explicit
route objects included by the path computation of the
secondary path.";
case wdm {
uses l0-types:wdm-label-hop;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:secondary-paths/te:secondary-path/"
+ "te:explicit-route-objects/"
+ "te:route-object-exclude-always/te:type/te:label/"
+ "te:label-hop/te:te-label/te:technology" {
description
"Augment TE label hop for the explicit route objects always
excluded by the path computation of the secondary path.";
case wdm {
uses l0-types:wdm-label-hop;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:secondary-paths/te:secondary-path/"
+ "te:explicit-route-objects/"
+ "te:route-object-include-exclude/te:type/te:label/"
+ "te:label-hop/te:te-label/te:technology" {
description
"Augment TE label hop for the explicit route objects included
or excluded by the path computation of the secondary path.";
case wdm {
uses l0-types:wdm-label-hop;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:secondary-paths/te:secondary-path/"
+ "te:path-in-segment/te:label-restrictions/"
+ "te:label-restriction/te:label-start/"
+ "te:te-label/te:technology" {
description
"Augment TE label range start for the ingress segment
of the secondary path.";
case wdm {
uses l0-types:wdm-label-start-end;
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}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:secondary-paths/te:secondary-path/"
+ "te:path-in-segment/te:label-restrictions/"
+ "te:label-restriction/te:label-end/"
+ "te:te-label/te:technology" {
description
"Augment TE label range end for the ingress segment
of the secondary path.";
case wdm {
uses l0-types:wdm-label-start-end;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:secondary-paths/te:secondary-path/"
+ "te:path-in-segment/te:label-restrictions/"
+ "te:label-restriction/te:label-step/te:technology" {
description
"Augment TE label range step for the ingress segment
of the secondary path.";
case wdm {
uses l0-types:wdm-label-step;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:secondary-paths/te:secondary-path/"
+ "te:path-out-segment/te:label-restrictions/"
+ "te:label-restriction/te:label-start/"
+ "te:te-label/te:technology" {
description
"Augment TE label range start for the egress segment
of the secondary path.";
case wdm {
uses l0-types:wdm-label-start-end;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:secondary-paths/te:secondary-path/"
+ "te:path-out-segment/te:label-restrictions/"
+ "te:label-restriction/te:label-end/"
+ "te:te-label/te:technology" {
description
"Augment TE label range end for the egress segment
of the secondary path.";
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case wdm {
uses l0-types:wdm-label-start-end;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:secondary-paths/te:secondary-path/"
+ "te:path-out-segment/te:label-restrictions/"
+ "te:label-restriction/te:label-step/te:technology" {
description
"Augment TE label range step for the egress segment
of the secondary path.";
case wdm {
uses l0-types:wdm-label-step;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:secondary-paths/te:secondary-path/"
+ "te:computed-paths-properties/"
+ "te:computed-path-properties/"
+ "te:path-properties/te:path-route-objects/"
+ "te:path-route-object/te:type/te:label/"
+ "te:label-hop/te:te-label/te:technology" {
description
"Augment TE label hop for the route object of the computed
secondary path.";
case wdm {
uses l0-types:wdm-label-hop;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:secondary-reverse-paths/te:secondary-reverse-path/"
+ "te:optimizations/te:algorithm/te:metric/"
+ "te:optimization-metric/te:explicit-route-exclude-objects/"
+ "te:route-object-exclude-object/te:type/te:label/"
+ "te:label-hop/te:te-label/te:technology" {
description
"Augment TE label hop for the optimization of the explicit
route objects excluded by the path computation of the
secondary reverse path.";
case wdm {
uses l0-types:wdm-label-hop;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
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+ "te:secondary-reverse-paths/te:secondary-reverse-path/"
+ "te:optimizations/te:algorithm/te:metric/"
+ "te:optimization-metric/te:explicit-route-include-objects/"
+ "te:route-object-include-object/te:type/te:label/"
+ "te:label-hop/te:te-label/te:technology" {
description
"Augment TE label hop for the optimization of the explicit
route objects included by the path computation of the
secondary reverse path.";
case wdm {
uses l0-types:wdm-label-hop;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:secondary-reverse-paths/te:secondary-reverse-path/"
+ "te:explicit-route-objects/"
+ "te:route-object-exclude-always/te:type/te:label/"
+ "te:label-hop/te:te-label/te:technology" {
description
"Augment TE label hop for the explicit route objects always
excluded by the path computation of the secondary reverse
path.";
case wdm {
uses l0-types:wdm-label-hop;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:secondary-reverse-paths/te:secondary-reverse-path/"
+ "te:explicit-route-objects/"
+ "te:route-object-include-exclude/te:type/te:label/"
+ "te:label-hop/te:te-label/te:technology" {
description
"Augment TE label hop for the explicit route objects included
or excluded by the path computation of the secondary reverse
path.";
case wdm {
uses l0-types:wdm-label-hop;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:secondary-reverse-paths/te:secondary-reverse-path/"
+ "te:path-in-segment/te:label-restrictions/"
+ "te:label-restriction/te:label-start/"
+ "te:te-label/te:technology" {
description
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"Augment TE label range start for the ingress segment
of the secondary reverse path.";
case wdm {
uses l0-types:wdm-label-start-end;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:secondary-reverse-paths/te:secondary-reverse-path/"
+ "te:path-in-segment/te:label-restrictions/"
+ "te:label-restriction/te:label-end/"
+ "te:te-label/te:technology" {
description
"Augment TE label range end for the ingress segment
of the secondary reverse path.";
case wdm {
uses l0-types:wdm-label-start-end;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:secondary-reverse-paths/te:secondary-reverse-path/"
+ "te:path-in-segment/te:label-restrictions/"
+ "te:label-restriction/te:label-step/te:technology" {
description
"Augment TE label range step for the ingress segment
of the secondary reverse path.";
case wdm {
uses l0-types:wdm-label-step;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:secondary-reverse-paths/te:secondary-reverse-path/"
+ "te:path-out-segment/te:label-restrictions/"
+ "te:label-restriction/te:label-start/"
+ "te:te-label/te:technology" {
description
"Augment TE label range start for the egress segment
of the secondary reverse path.";
case wdm {
uses l0-types:wdm-label-start-end;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:secondary-reverse-paths/te:secondary-reverse-path/"
+ "te:path-out-segment/te:label-restrictions/"
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+ "te:label-restriction/te:label-end/"
+ "te:te-label/te:technology" {
description
"Augment TE label range end for the egress segment
of the secondary reverse path.";
case wdm {
uses l0-types:wdm-label-start-end;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:secondary-reverse-paths/te:secondary-reverse-path/"
+ "te:path-out-segment/te:label-restrictions/"
+ "te:label-restriction/te:label-step/te:technology" {
description
"Augment TE label range step for the egress segment
of the secondary reverse path.";
case wdm {
uses l0-types:wdm-label-step;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:secondary-reverse-paths/te:secondary-reverse-path/"
+ "te:computed-paths-properties/"
+ "te:computed-path-properties/"
+ "te:path-properties/te:path-route-objects/"
+ "te:path-route-object/te:type/te:label/"
+ "te:label-hop/te:te-label/te:technology" {
description
"Augment TE label hop for the route object of the computed
secondary reverse path.";
case wdm {
uses l0-types:wdm-label-hop;
}
}
augment "/te:te/te:lsps/"
+ "te:lsp/te:lsp-actual-route-information/"
+ "te:lsp-actual-route-information/te:type/te:label/"
+ "te:label-hop/te:te-label/te:technology" {
description
"Augment TE label hop for the actual route of the LSP.";
case wdm {
uses l0-types:wdm-label-hop;
}
}
}
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<CODE ENDS>
Figure 3: WDM Tunnel YANG module
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 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.
There are a number of data nodes defined in this YANG module that are
writable/creatable/deletable (i.e., config true, which is the
default). These data nodes may be considered sensitive or vulnerable
in some network environments. Write operations (e.g., edit-config)
to these data nodes without proper protection can have a negative
effect on network operations. These are the subtrees and data nodes
and their sensitivity/vulnerability:
* /te:te/te:tunnels/te:tunnel
* /te:te/.../te:te-bandwidth/te:technology
* /te:te/.../te:type/te:label/te:label-hop/te:te-label/te:technology
* /te:te/.../te:label-restrictions/te:label-restriction/te:label-
start/te:te-label/te:technology
* /te:te/.../te:label-restrictions/te:label-restriction/te:label-
end/te:te-label/te:technology
* /te:te/.../te:label-restrictions/te:label-restriction/
Editors note: we are using simplified description by folding similar
branches to avoid repetition.
7. IANA Considerations
This document requests IANA to register the following URIs in the
"ns" subregistry within the "IETF XML Registry" [RFC3688]. Following
the format in [RFC3688], the following registrations are requested.
URI: urn:ietf:params:xml:ns:yang:ietf-wdm-tunnel
Registrant Contact: The IESG
XML: N/A; the requested URI is an XML namespace.
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This document requests IANA to register the following YANG modules in
the "IANA Module Names" [RFC6020]. Following the format in
[RFC6020], the following registrations are requested:
name: ietf-wdm-tunnel
namespace: urn:ietf:params:xml:ns:yang:ietf-wdm-tunnel
prefix: wdm-tnl
reference: RFC XXXX
RFC Editor: Please replace XXXX with the RFC number assigned to this
document.
8. References
8.1. Normative References
[RFC9094] Zheng, H., Lee, Y., Guo, A., Lopez, V., and D. King, "A
YANG Data Model for Wavelength Switched Optical Networks
(WSONs)", RFC 9094, DOI 10.17487/RFC9094, August 2021,
<https://www.rfc-editor.org/info/rfc9094>.
[I-D.ietf-ccamp-flexigrid-yang]
de Madrid, U. A., Burrero, D. P., King, D., Lee, Y., and
H. Zheng, "A YANG Data Model for Flexi-Grid Optical
Networks", Work in Progress, Internet-Draft, draft-ietf-
ccamp-flexigrid-yang-16, 29 January 2024,
<https://datatracker.ietf.org/doc/html/draft-ietf-ccamp-
flexigrid-yang-16>.
[RFC7950] Bjorklund, M., Ed., "The YANG 1.1 Data Modeling Language",
RFC 7950, DOI 10.17487/RFC7950, August 2016,
<https://www.rfc-editor.org/info/rfc7950>.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119,
DOI 10.17487/RFC2119, March 1997,
<https://www.rfc-editor.org/info/rfc2119>.
[RFC8174] Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC
2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174,
May 2017, <https://www.rfc-editor.org/info/rfc8174>.
[RFC7446] Lee, Y., Ed., Bernstein, G., Ed., Li, D., and W. Imajuku,
"Routing and Wavelength Assignment Information Model for
Wavelength Switched Optical Networks", RFC 7446,
DOI 10.17487/RFC7446, February 2015,
<https://www.rfc-editor.org/info/rfc7446>.
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[RFC7699] Farrel, A., King, D., Li, Y., and F. Zhang, "Generalized
Labels for the Flexi-Grid in Lambda Switch Capable (LSC)
Label Switching Routers", RFC 7699, DOI 10.17487/RFC7699,
November 2015, <https://www.rfc-editor.org/info/rfc7699>.
[RFC6241] Enns, R., Ed., Bjorklund, M., Ed., Schoenwaelder, J., Ed.,
and A. Bierman, Ed., "Network Configuration Protocol
(NETCONF)", RFC 6241, DOI 10.17487/RFC6241, June 2011,
<https://www.rfc-editor.org/info/rfc6241>.
[I-D.ietf-teas-yang-te]
Saad, T., Gandhi, R., Liu, X., Beeram, V. P., and I.
Bryskin, "A YANG Data Model for Traffic Engineering
Tunnels, Label Switched Paths and Interfaces", Work in
Progress, Internet-Draft, draft-ietf-teas-yang-te-36, 2
February 2024, <https://datatracker.ietf.org/doc/html/
draft-ietf-teas-yang-te-36>.
[RFC8040] Bierman, A., Bjorklund, M., and K. Watsen, "RESTCONF
Protocol", RFC 8040, DOI 10.17487/RFC8040, January 2017,
<https://www.rfc-editor.org/info/rfc8040>.
[RFC8341] Bierman, A. and M. Bjorklund, "Network Configuration
Access Control Model", STD 91, RFC 8341,
DOI 10.17487/RFC8341, March 2018,
<https://www.rfc-editor.org/info/rfc8341>.
[RFC3688] Mealling, M., "The IETF XML Registry", BCP 81, RFC 3688,
DOI 10.17487/RFC3688, January 2004,
<https://www.rfc-editor.org/info/rfc3688>.
[RFC6020] Bjorklund, M., Ed., "YANG - A Data Modeling Language for
the Network Configuration Protocol (NETCONF)", RFC 6020,
DOI 10.17487/RFC6020, October 2010,
<https://www.rfc-editor.org/info/rfc6020>.
8.2. Informative References
[RFC6163] Lee, Y., Ed., Bernstein, G., Ed., and W. Imajuku,
"Framework for GMPLS and Path Computation Element (PCE)
Control of Wavelength Switched Optical Networks (WSONs)",
RFC 6163, DOI 10.17487/RFC6163, April 2011,
<https://www.rfc-editor.org/info/rfc6163>.
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[RFC7698] Gonzalez de Dios, O., Ed., Casellas, R., Ed., Zhang, F.,
Fu, X., Ceccarelli, D., and I. Hussain, "Framework and
Requirements for GMPLS-Based Control of Flexi-Grid Dense
Wavelength Division Multiplexing (DWDM) Networks",
RFC 7698, DOI 10.17487/RFC7698, November 2015,
<https://www.rfc-editor.org/info/rfc7698>.
Acknowledgments
This work is also partially funded by the Spanish State Research
Agency under the project AgileMon (AEI PID2019-104451RB-C21) and by
the Spanish Ministry of Science, Innovation and Universities under
the program for the training of university lecturers (Grant number:
FPU19/05678).
Contributors
Daniel King
Old Dog Consulting
Email: daniel@olddog.co.uk
Haomian Zheng
Huawei Technologies
H1, Xiliu Beipo Village, Songshan Lake
Dongguan
China
Email: zhenghaomian@huawei.com
Italo Busi
Huawei Technologies
Email: italo.busi@huawei.com
Oscar Gonzalez de Dios
Telefonica
Email: oscar.gonzalezdedios@telefonica.com
Victor Lopez
Nokia
Email: victor.lopez@nokia.com
Dieter Beller
Nokia
Email: Dieter.Beller@nokia.com
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Ricard Vilalta
CTTC
Email: ricard.vilalta@cttc.es
Young Lee
Samsung
Email: younglee.tx@gmail.com
Bin Yeong Yoon
ETRI
Email: byyun@etri.re.kr
Daniel Michaud Vallinoto
Universidad Autonoma de Madrid
Email: daniel.michaud@estudiante.uam.es
Zafar Ali
Cisco
Email: zali@cisco.com
Esther Le Rouzic
Orange
Email: esther.lerouzic@orange.com
Julien Meuric
Orange
Email: julien.meuric@orange.com
Gert Grammel
Juniper
Email: ggrammel@juniper.net
Roberto Manzotti
Cisco
Email: manzoro@gmail.com
Authors' Addresses
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Aihua Guo
Futurewei Technologies
Email: aihuaguo.ietf@gmail.com
Sergio Belotti
Nokia
Email: Sergio.belotti@nokia.com
G. Galimberti
Individual
Email: ggalimbe56@gmail.com
Jorge E. Lopez de Vergara Mendez
Naudit HPCN
Email: jorge.lopez_vergara@uam.es
Daniel Perdices Burrero
Universidad Autonoma de Madrid
Email: daniel.perdices@uam.es
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