A YANG Data Model for Flexi-Grid Tunnels
draft-ietf-ccamp-flexigrid-tunnel-yang-02
The information below is for an old version of the document.
| Document | Type |
This is an older version of an Internet-Draft whose latest revision state is "Replaced".
|
|
|---|---|---|---|
| Authors | Universidad Autonoma de Madrid , Daniel Perdices Burrero , Daniel King , Victor Lopez , Italo Busi , Sergio Belotti , Gabriele Galimberti | ||
| Last updated | 2023-01-08 | ||
| Replaces | draft-ietf-ccamp-flexigrid-media-channel-yang | ||
| Replaced by | draft-ietf-ccamp-wdm-tunnel-yang | ||
| RFC stream | Internet Engineering Task Force (IETF) | ||
| Formats | |||
| 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-flexigrid-tunnel-yang-02
CCAMP Working Group J.E. Lopez de Vergara
Internet-Draft Naudit HPCN
Intended status: Informational D. Perdices Burrero
Expires: 12 July 2023 Universidad Autonoma de Madrid
D. King
Old Dog Consulting
V. Lopez
Nokia
I. Busi
Huawei Technologies
S. Belotti
Nokia
G. Galimberti
Cisco
8 January 2023
A YANG Data Model for Flexi-Grid Tunnels
draft-ietf-ccamp-flexigrid-tunnel-yang-02
Abstract
This document defines a YANG model for managing flexi-grid optical
tunnels (media-channels), complementing the information provided by
the flexi-grid topology model.
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 12 July 2023.
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Copyright Notice
Copyright (c) 2023 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents (https://trustee.ietf.org/
license-info) in effect on the date of publication of this document.
Please review these documents carefully, as they describe your rights
and restrictions with respect to this document. Code Components
extracted from this document must include Revised BSD License text as
described in Section 4.e of the Trust Legal Provisions and are
provided without warranty as described in the Revised BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Flexi-Grid Tunnel Overview . . . . . . . . . . . . . . . . . 3
4. Example of Use . . . . . . . . . . . . . . . . . . . . . . . 4
5. YANG Model for Flexi-Grid Tunnel . . . . . . . . . . . . . . 6
5.1. YANG Tree . . . . . . . . . . . . . . . . . . . . . . . . 6
5.2. YANG Code . . . . . . . . . . . . . . . . . . . . . . . . 19
6. Security Considerations . . . . . . . . . . . . . . . . . . . 38
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 39
8. Contributors . . . . . . . . . . . . . . . . . . . . . . . . 39
9. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 39
10. References . . . . . . . . . . . . . . . . . . . . . . . . . 39
10.1. Normative References . . . . . . . . . . . . . . . . . . 39
10.2. Informative References . . . . . . . . . . . . . . . . . 40
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 40
1. Introduction
Transport networks are evolving from current DWDM systems towards
elastic optical networks, based on flexi-grid transmission and
switching technologies [RFC7698]. Such technology aims at increasing
both transport network scalability and flexibility, allowing the
optimization of bandwidth usage.
While [I-D.ietf-ccamp-flexigrid-yang] focuses on flexi-grid objects
such as nodes, transponders and links, this document presents a YANG
[RFC7950] model for the flexi-grid tunnel (media-channel). This YANG
module defines the whole path from a source transponder or node to
the destination through a number of intermediate nodes in the flexi-
grid network.
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This document identifies the flexi-grid tunne components, parameters
and their values, characterizes the features and the performances of
the flexi-grid elements. An application example is provided towards
the end of the document to better understand their utility.
2. Terminology
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
The terminology for describing YANG data models is found in
[RFC7950].
3. Flexi-Grid Tunnel Overview
The present model defines a flexi-grid tunnel mainly composed of:
* source address
* source flexi-grid port
* source flexi-grid transponder
* destination address
* destination flexi-grid port
* destination flexi-grid transponder
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* list of links that defines the path
* other optical attributes
Each path can be a tunnel (only defined by source and destination
node) or a network tunnel (additionally needs source and destination
transponders). Therefore, all the attributes are optional to support
both situations.
This is achieved by a combination of the traffic engineering tunnel
attributes explained in [I-D.ietf-teas-yang-te] and augments when
necessary. For instance, source address, source flexi-grid
transponder, destination address and destination flexi-grid
transponder attributes are directly taken from tunnel, whereas other
attributes such as source flexi-grid port, destination flexi-grid
port are defined, as they are specific for flexi-grid.
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.
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Tunnel
<==============================================================>
Flexi-grid Tunnel Group x
<~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~>
+------------+ +------------+
| Flexi- | | Flexi- |
| grid | | grid |
| node A | | node E |
| | +------+ +------+ | |
| | Link 1 |Flexi-| Link 2 |Flexi-| Link 3 | |
| |<------>| grid |<------>| grid |<------>| |
|......... | |node B| |node C| | .........|
| Trans- : | +------+ +------+ | : Trans- |
| ponder : | | : ponder |
| A : | +----------+ | : E |
|........: | Link 4 |Flexi-grid| Link 5 | :........|
| | | D | | |
| |<------------>| node |<------------>| |
| | +----------+ | |
+------------+ +------------+
<~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~>
Flexi-grid Tunnel Group y
Figure 1: Topology Example
To configure a network 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 B 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 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] 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. 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 Flexi-Grid Tunnel
5.1. YANG Tree
module: ietf-flexi-grid-tunnel
augment /te:te/te:tunnels/te:tunnel:
+--rw fec-type? identityref
+--rw termination-type? identityref
+--rw bit-stuffing? boolean
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
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+--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
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
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+--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-always
/te:route-object-exclude-always/te:type/te:label
/te:label-hop/te:te-label/te:technology:
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
+--:(super)
+--rw subcarrier-flexi-n* [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-always
/te:route-object-include-exclude/te:type/te:label
/te:label-hop/te:te-label/te:technology:
+--:(flexi-grid)
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+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
+--:(super)
+--rw subcarrier-flexi-n* [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:
+--:(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:
+--:(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:
+--:(flexi-grid)
+--rw flexi-grid-channel-spacing? 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:
+--:(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:
+--:(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:
+--:(flexi-grid)
+--rw flexi-grid-channel-spacing? 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
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/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:
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
+--:(super)
+--rw subcarrier-flexi-n* [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:
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
+--:(super)
+--rw subcarrier-flexi-n* [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-always
/te:route-object-exclude-always/te:type/te:label
/te:label-hop/te:te-label/te:technology:
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
+--:(super)
+--rw subcarrier-flexi-n* [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-always
/te:route-object-include-exclude/te:type/te:label
/te:label-hop/te:te-label/te:technology:
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
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+--:(super)
+--rw subcarrier-flexi-n* [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:
+--:(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:
+--:(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:
+--:(flexi-grid)
+--rw flexi-grid-channel-spacing? 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:
+--:(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:
+--:(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:
+--:(flexi-grid)
+--rw flexi-grid-channel-spacing? 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:
+--:(flexi-grid)
+--ro (single-or-super-channel)?
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+--:(single)
| +--ro flexi-n? l0-types:flexi-n
| +--ro flexi-m? l0-types:flexi-m
+--:(super)
+--ro subcarrier-flexi-n* [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:
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
+--:(super)
+--rw subcarrier-flexi-n* [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:
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
+--:(super)
+--rw subcarrier-flexi-n* [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-always
/te:route-object-exclude-always/te:type/te:label
/te:label-hop/te:te-label/te:technology:
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
+--:(super)
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+--rw subcarrier-flexi-n* [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-always
/te:route-object-include-exclude/te:type/te:label
/te:label-hop/te:te-label/te:technology:
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
+--:(super)
+--rw subcarrier-flexi-n* [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:
+--:(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-end/te:te-label
/te:technology:
+--:(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:
+--:(flexi-grid)
+--rw flexi-grid-channel-spacing? 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:
+--:(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
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/te:label-restriction/te:label-end/te:te-label
/te:technology:
+--:(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:
+--:(flexi-grid)
+--rw flexi-grid-channel-spacing? 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:
+--:(flexi-grid)
+--ro (single-or-super-channel)?
+--:(single)
| +--ro flexi-n? l0-types:flexi-n
| +--ro flexi-m? l0-types:flexi-m
+--:(super)
+--ro subcarrier-flexi-n* [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
/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:
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
+--:(super)
+--rw subcarrier-flexi-n* [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:
+--:(flexi-grid)
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+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
+--:(super)
+--rw subcarrier-flexi-n* [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-always
/te:route-object-exclude-always/te:type/te:label
/te:label-hop/te:te-label/te:technology:
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
+--:(super)
+--rw subcarrier-flexi-n* [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-always
/te:route-object-include-exclude/te:type/te:label
/te:label-hop/te:te-label/te:technology:
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
+--:(super)
+--rw subcarrier-flexi-n* [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:
+--:(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:
+--:(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
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/te:label-restrictions/te:label-restriction/te:label-step
/te:technology:
+--:(flexi-grid)
+--rw flexi-grid-channel-spacing? 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:
+--:(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:
+--:(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:
+--:(flexi-grid)
+--rw flexi-grid-channel-spacing? identityref
+--rw flexi-n-step? uint8
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:
+--:(flexi-grid)
+--ro (single-or-super-channel)?
+--:(single)
| +--ro flexi-n? l0-types:flexi-n
| +--ro flexi-m? l0-types:flexi-m
+--:(super)
+--ro subcarrier-flexi-n* [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:
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
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| +--rw flexi-m? l0-types:flexi-m
+--:(super)
+--rw subcarrier-flexi-n* [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:
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
+--:(super)
+--rw subcarrier-flexi-n* [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-always
/te:route-object-exclude-always/te:type/te:label
/te:label-hop/te:te-label/te:technology:
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
+--:(super)
+--rw subcarrier-flexi-n* [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-always
/te:route-object-include-exclude/te:type/te:label
/te:label-hop/te:te-label/te:technology:
+--:(flexi-grid)
+--rw (single-or-super-channel)?
+--:(single)
| +--rw flexi-n? l0-types:flexi-n
| +--rw flexi-m? l0-types:flexi-m
+--:(super)
+--rw subcarrier-flexi-n* [flexi-n]
+--rw flexi-n l0-types:flexi-n
+--rw flexi-m? l0-types:flexi-m
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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:
+--:(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:
+--:(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:
+--:(flexi-grid)
+--rw flexi-grid-channel-spacing? 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:
+--:(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:
+--:(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:
+--:(flexi-grid)
+--rw flexi-grid-channel-spacing? 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:
+--:(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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+--:(super)
+--ro subcarrier-flexi-n* [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-record-route-information
/te:lsp-record-route-information/te:type/te:label
/te:label-hop/te:te-label/te:technology:
+--:(flexi-grid)
+--ro (single-or-super-channel)?
+--:(single)
| +--ro flexi-n? l0-types:flexi-n
| +--ro flexi-m? l0-types:flexi-m
+--:(super)
+--ro subcarrier-flexi-n* [flexi-n]
+--ro flexi-n l0-types:flexi-n
+--ro flexi-m? l0-types:flexi-m
5.2. YANG Code
<CODE BEGINS> file "ietf-flexi-grid-tunnel@2022-07-11.yang"
module ietf-flexi-grid-tunnel {
yang-version 1.1;
namespace
"urn:ietf:params:xml:ns:yang:ietf-flexi-grid-tunnel";
prefix "flexg-tnl";
import ietf-te {
prefix "te";
revision-date "2022-07-11";
reference
"I-D.ietf-teas-yang-te-19: A YANG Data Model for Traffic
Engineering Tunnels and Interfaces. ";
}
import ietf-layer0-types {
prefix "l0-types";
}
import ietf-layer0-types-ext {
prefix "l0-types-ext";
}
organization
"IETF CCAMP Working Group";
contact
"WG Web: <http://tools.ietf.org/wg/ccamp/>
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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: Young Lee
<leeyoung@huawei.com>";
description
"This module defines a model for Flex-grid Tunnel
Services.
The model fully conforms to the Network Management
Datastore Architecture (NMDA).
Copyright (c) 2022 IETF Trust and the persons
identified as authors of the code. All rights reserved.
Redistribution and use in source and binary forms, with or
without modification, is permitted pursuant to, and subject
to the license terms contained in, the Simplified BSD License
set forth in Section 4.c of the IETF Trust's Legal Provisions
Relating to IETF Documents
(https://trustee.ietf.org/license-info).
This version of this YANG module is part of RFC XXXX; see
the RFC itself for full legal notices.";
revision "2022-07-11" {
description
"Initial Revision";
reference
"RFC XXXX: YANG data model for Flexi-Grid tunnels";
// RFC Ed.: replace XXXX with actual RFC number, update date
// information and remove this note
}
/*
* Data nodes
*/
augment "/te:te/te:tunnels/te:tunnel" {
description
"Augment with additional parameters required for flexi-grid
tunnels.";
uses l0-types-ext:l0-tunnel-attributes;
}
/*
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* 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
of the named path constraint.";
uses l0-types:flexi-grid-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:flexi-grid-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:flexi-grid-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:flexi-grid-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
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"Augment TE label range information for the ingress segment
of the primay reverse path.";
uses l0-types:flexi-grid-label-range-info;
}
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" {
description
"Augment TE label range information for the egress segment
of the primay reverse path.";
uses l0-types:flexi-grid-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:flexi-grid-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:flexi-grid-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:flexi-grid-label-range-info;
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:secondary-reverse-paths/te:secondary-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 secondary reverse path.";
uses l0-types:flexi-grid-label-range-info;
}
/*
* Augment TE label.
*/
augment "/te:te/te:globals/te:named-path-constraints/"
+ "te:named-path-constraint/"
+ "te:explicit-route-objects-always/"
+ "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 flexi-grid {
uses l0-types:flexi-grid-label-hop;
}
}
augment "/te:te/te:globals/te:named-path-constraints/"
+ "te:named-path-constraint/"
+ "te:explicit-route-objects-always/"
+ "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 flexi-grid {
uses l0-types:flexi-grid-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.";
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case flexi-grid {
uses l0-types:flexi-grid-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" {
description
"Augment TE label range end for the ingress segment
of the named path constraint.";
case flexi-grid {
uses l0-types:flexi-grid-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 flexi-grid {
uses l0-types:flexi-grid-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 flexi-grid {
uses l0-types:flexi-grid-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" {
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description
"Augment TE label range end for the egress segment
of the named path constraint.";
case flexi-grid {
uses l0-types:flexi-grid-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-step/te:technology" {
description
"Augment TE label range step for the egress segment
of the named path constraint.";
case flexi-grid {
uses l0-types:flexi-grid-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 flexi-grid {
uses l0-types:flexi-grid-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 flexi-grid {
uses l0-types:flexi-grid-label-hop;
}
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}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:primary-paths/te:primary-path/"
+ "te:explicit-route-objects-always/"
+ "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.";
case flexi-grid {
uses l0-types:flexi-grid-label-hop;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:primary-paths/te:primary-path/"
+ "te:explicit-route-objects-always/"
+ "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 flexi-grid {
uses l0-types:flexi-grid-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 flexi-grid {
uses l0-types:flexi-grid-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
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of the primay path.";
case flexi-grid {
uses l0-types:flexi-grid-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" {
description
"Augment TE label range step for the ingress segment
of the primay path.";
case flexi-grid {
uses l0-types:flexi-grid-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 flexi-grid {
uses l0-types:flexi-grid-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 flexi-grid {
uses l0-types:flexi-grid-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" {
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description
"Augment TE label range end for the egress segment
of the primay path.";
case flexi-grid {
uses l0-types:flexi-grid-label-step;
}
}
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" {
description
"Augment TE label hop for the route object of the computed
primary path.";
case flexi-grid {
uses l0-types:flexi-grid-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 flexi-grid {
uses l0-types:flexi-grid-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
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route objects included by the path computation of the primary
reverse path.";
case flexi-grid {
uses l0-types:flexi-grid-label-hop;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:primary-paths/te:primary-path/"
+ "te:primary-reverse-path/"
+ "te:explicit-route-objects-always/"
+ "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 flexi-grid {
uses l0-types:flexi-grid-label-hop;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:primary-paths/te:primary-path/"
+ "te:primary-reverse-path/"
+ "te:explicit-route-objects-always/"
+ "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 flexi-grid {
uses l0-types:flexi-grid-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.";
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case flexi-grid {
uses l0-types:flexi-grid-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/"
+ "te:te-label/te:technology" {
description
"Augment TE label range end for the ingress segment
of the primay reverse path.";
case flexi-grid {
uses l0-types:flexi-grid-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 flexi-grid {
uses l0-types:flexi-grid-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 flexi-grid {
uses l0-types:flexi-grid-label-start-end;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:primary-paths/te:primary-path/"
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+ "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 flexi-grid {
uses l0-types:flexi-grid-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-step/te:technology" {
description
"Augment TE label range step for the egress segment
of the primay reverse path.";
case flexi-grid {
uses l0-types:flexi-grid-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 flexi-grid {
uses l0-types:flexi-grid-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
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route objects excluded by the path computation of the
secondary path.";
case flexi-grid {
uses l0-types:flexi-grid-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-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 flexi-grid {
uses l0-types:flexi-grid-label-hop;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:secondary-paths/te:secondary-path/"
+ "te:explicit-route-objects-always/"
+ "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 flexi-grid {
uses l0-types:flexi-grid-label-hop;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:secondary-paths/te:secondary-path/"
+ "te:explicit-route-objects-always/"
+ "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 flexi-grid {
uses l0-types:flexi-grid-label-hop;
}
}
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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-start/"
+ "te:te-label/te:technology" {
description
"Augment TE label range start for the ingress segment
of the secondary path.";
case flexi-grid {
uses l0-types:flexi-grid-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-end/"
+ "te:te-label/te:technology" {
description
"Augment TE label range end for the ingress segment
of the secondary path.";
case flexi-grid {
uses l0-types:flexi-grid-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 flexi-grid {
uses l0-types:flexi-grid-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 flexi-grid {
uses l0-types:flexi-grid-label-start-end;
}
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}
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.";
case flexi-grid {
uses l0-types:flexi-grid-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 flexi-grid {
uses l0-types:flexi-grid-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 flexi-grid {
uses l0-types:flexi-grid-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" {
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description
"Augment TE label hop for the optimization of the explicit
route objects excluded by the path computation of the
secondary reverse path.";
case flexi-grid {
uses l0-types:flexi-grid-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-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 flexi-grid {
uses l0-types:flexi-grid-label-hop;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:secondary-reverse-paths/te:secondary-reverse-path/"
+ "te:explicit-route-objects-always/"
+ "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 flexi-grid {
uses l0-types:flexi-grid-label-hop;
}
}
augment "/te:te/te:tunnels/te:tunnel/"
+ "te:secondary-reverse-paths/te:secondary-reverse-path/"
+ "te:explicit-route-objects-always/"
+ "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 flexi-grid {
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uses l0-types:flexi-grid-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
"Augment TE label range start for the ingress segment
of the secondary reverse path.";
case flexi-grid {
uses l0-types:flexi-grid-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 flexi-grid {
uses l0-types:flexi-grid-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 flexi-grid {
uses l0-types:flexi-grid-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
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"Augment TE label range start for the egress segment
of the secondary reverse path.";
case flexi-grid {
uses l0-types:flexi-grid-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-end/"
+ "te:te-label/te:technology" {
description
"Augment TE label range end for the egress segment
of the secondary reverse path.";
case flexi-grid {
uses l0-types:flexi-grid-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 flexi-grid {
uses l0-types:flexi-grid-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 flexi-grid {
uses l0-types:flexi-grid-label-hop;
}
}
augment "/te:te/te:lsps/"
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+ "te:lsp/te:lsp-record-route-information/"
+ "te:lsp-record-route-information/te:type/te:label/"
+ "te:label-hop/te:te-label/te:technology" {
description
"Augment TE label hop for the record route of the LSP.";
case flexi-grid {
uses l0-types:flexi-grid-label-hop;
}
}
}
<CODE ENDS>
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.
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7. IANA Considerations
To be discussed.
8. Contributors
This work was developed by several additional people, who due to
frontpage author restrictions, are listed below:
Zafar Ali Cisco Email: zali@cisco.com
Daniel Michaud Vallinoto Universidad Autonoma de Madrid Email:
daniel.michaud@estudiante.uam.es
Young Lee Samsung Email: younglee.tx@gmail.com
Oscar Gonzalez de Dios Telefonica I+D/GCTO Email:
oscar.gonzalezdedios@telefonica.com
9. 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).
10. References
10.1. Normative References
[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-13, 10 July 2022,
<https://www.ietf.org/archive/id/draft-ietf-ccamp-
flexigrid-yang-13.txt>.
[I-D.ietf-teas-yang-te]
Saad, T., Gandhi, R., Liu, X., Beeram, V. P., Bryskin, I.,
and O. G. de Dios, "A YANG Data Model for Traffic
Engineering Tunnels, Label Switched Paths and Interfaces",
Work in Progress, Internet-Draft, draft-ietf-teas-yang-te-
31, 24 October 2022, <https://www.ietf.org/archive/id/
draft-ietf-teas-yang-te-31.txt>.
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[RFC6241] Enns, R., Ed., Bjorklund, M., Ed., Schoenwaelder, J., Ed.,
Bierman, A., Ed., and RFC Publisher, "Network
Configuration Protocol (NETCONF)", RFC 6241,
DOI 10.17487/RFC6241, June 2011,
<https://www.rfc-editor.org/info/rfc6241>.
[RFC7699] Farrel, A., King, D., Li, Y., Zhang, F., and RFC
Publisher, "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>.
[RFC7950] Bjorklund, M., Ed. and RFC Publisher, "The YANG 1.1 Data
Modeling Language", RFC 7950, DOI 10.17487/RFC7950, August
2016, <https://www.rfc-editor.org/info/rfc7950>.
[RFC8040] Bierman, A., Bjorklund, M., Watsen, K., and RFC Publisher,
"RESTCONF Protocol", RFC 8040, DOI 10.17487/RFC8040,
January 2017, <https://www.rfc-editor.org/info/rfc8040>.
[RFC8341] Bierman, A., Bjorklund, M., and RFC Publisher, "Network
Configuration Access Control Model", STD 91, RFC 8341,
DOI 10.17487/RFC8341, March 2018,
<https://www.rfc-editor.org/info/rfc8341>.
10.2. Informative References
[RFC7446] Lee, Y., Ed., Bernstein, G., Ed., Li, D., Imajuku, W., and
RFC Publisher, "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>.
[RFC7698] Gonzalez de Dios, O., Ed., Casellas, R., Ed., Zhang, F.,
Fu, X., Ceccarelli, D., Hussain, I., and RFC Publisher,
"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>.
Authors' Addresses
Jorge E. Lopez de Vergara Mendez
Naudit HPCN
Email: jorge.lopez_vergara@uam.es
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Daniel Perdices Burrero
Universidad Autonoma de Madrid
Email: daniel.perdices@uam.es
Daniel King
Old Dog Consulting
Email: daniel@olddog.co.uk
Victor Lopez
Nokia
Email: victor.lopez@nokia.com
Italo Busi
Huawei Technologies
Email: Italo.Busi@huawei.com
Sergio Belotti
Nokia
Email: sergio.belotti@nokia.com
G. Galimberti
Cisco
Email: ggalimbe@cisco.com
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