CCAMP Working Group Y. Lee
Internet Draft H. Zheng
Intended status: Standard Track Huawei
Expires: April 23, 2019
N. Sambo
Scuola Superiore Sant'Anna
V. Lopez
Telefonica
G. Galimberti
Cisco
October 22, 2018
A Yang Data Model for Optical Impairment-aware Topology
draft-lee-ccamp-optical-impairment-topology-yang-00
Abstract
This document provides a YANG data model for the impairment-aware TE
topology in optical networks.
Status of this Memo
This Internet-Draft is submitted to IETF in full conformance with
the provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF), its areas, and its working groups. Note that
other groups may also distribute working documents as Internet-
Drafts.
Internet-Drafts are draft documents valid for a maximum of six
months and may be updated, replaced, or obsoleted by other documents
at any time. It is inappropriate to use Internet-Drafts as
reference material or to cite them other than as "work in progress."
The list of current Internet-Drafts can be accessed at
http://www.ietf.org/ietf/1id-abstracts.txt
The list of Internet-Draft Shadow Directories can be accessed at
http://www.ietf.org/shadow.html
This Internet-Draft will expire on April 23, 2019.
Copyright Notice
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Copyright (c) 2018 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with
respect to this document. Code Components extracted from this
document must include Simplified BSD License text as described in
Section 4.e of the Trust Legal Provisions and are provided without
warranty as described in the Simplified BSD License.
Table of Contents
1. Introduction...................................................2
1.1. Terminology...............................................3
1.2. Tree diagram..............................................4
1.3. Prefixes in Data Node Names...............................4
2. YANG Model (Tree Structure)....................................4
3. Optical Impairment Topology YANG Model.........................6
4. Security Considerations.......................................18
5. IANA Considerations...........................................19
6. Acknowledgments...............................................19
7. References....................................................20
7.1. Normative References.....................................20
7.2. Informative References...................................20
8. Contributors..................................................21
Authors' Addresses...............................................21
1. Introduction
In order to provision an optical connection (an optical path)
through a wavelength switched optical networks (WSONs) or spectrum
switched optical networks (SSONs), a combination of path continuity,
resource availability, and impairment constraints must be met to
determine viable and optimal paths through the network. The
determination of appropriate paths is known as Impairment-Aware
Routing and Wavelength Assignment (IA-RWA) [RFC6566] for WSON, while
it is known as IA-Routing and Spectrum Assigment (IA-RSA) for SSON.
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This document provides a YANG data model for the impairment-aware
Traffic Engineering (TE) topology in WSONs and SSONs. The YANG model
described in this document is a WSON/SSON technology-specific Yang
model based on the information model developed in [RFC7446] and the
two encoding documents [RFC7581] and [RFC7579] that developed
protocol independent encodings based on [RFC7446].
The intent of this document is to provide a Yang data model, which
can be utilized by an Multi Domain Service Coordinator (MDSC) to
collect states of WSON impairment data from the Transport PNCs to
enable impairment-aware optical path computation according to the
ACTN Architecture [RFC8453]. The communication between controllers
is done via a NETCONF [RFC8341]. Similarly, this model can also be
exported by the MDSC to a Customer Network Controller (CNC), which
can run an offline planning process to map latter the services in
the network.
This document augments the generic TE topology draft [TE-TOPO] where
possible.
This document defines one YANG module: ietf-optical-impairment-
topology (Section 3) according to the new Network Management
Datastore Architecture [RFC8342].
1.1. Terminology
Refer to [RFC4847] and [RFC5253] for the key terms used in this
document.
The following terms are defined in [RFC7950] and are not redefined
here:
o client
o server
o augment
o data model
o data node
The following terms are defined in [RFC6241] and are not redefined
here:
o configuration data
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o state data
The terminology for describing YANG data models is found in
[RFC7950].
1.2. Tree diagram
A simplified graphical representation of the data model is used in
Section 2 of this this document. The meaning of the symbols in
these diagrams is defined in [RFC8340].
1.3. Prefixes in Data Node Names
In this document, names of data nodes and other data model objects
are prefixed using the standard prefix associated with the
corresponding YANG imported modules, as shown in Table 1.
+------------------+----------------------------------+------------+
| Prefix | YANG module | Reference |
+------------------+----------------------------------+------------+
| optical-imp-topo | ietf-optical-impairment-topology | [RFC XXXX] |
| layer0-types | ietf-layer0-types | [WSON-topo]|
| nw | ietf-network | [RFC8345] |
| nt | ietf-network-topology | [RFC8345] |
| tet | ietf-te-topology | [TE-TOPO] |
+------------------+----------------------------------+------------+
Table 1: Prefixes and corresponding YANG modules
Note: The RFC Editor will replace XXXX with the number assigned to
the RFC once this draft becomes an RFC.
2. YANG Model (Tree Structure)
module: ietf-optical-impairment-topology
augment /nw:networks/nw:network/nw:network-types/tet:te-topology:
+--rw optical-impairment-topology!
augment /nw:networks/nw:network/nt:link/tet:te/tet:te-link-attributes:
+--ro fiber-type? fiber-type
+--ro power? int32
+--ro pmd? decimal64
+--ro cd? decimal64
+--ro osnr? decimal64
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augment /nw:networks/nw:network/nt:link/tet:te/tet:te-link-
attributes/tet:underlay/tet:primary-path/tet:path-
element/tet:type/tet:label/tet:label-hop/tet:te-label/tet:technology:
+--:(optical-imp-topo)
+--rw (grid-type)?
| +--:(flexi-grid)
| | +--ro central-channel-freq? decimal64
| | +--ro slot-width? decimal64
| +--:(dwdm)
| | +--ro channel-freq? decimal64
| +--:(cwdm)
| +--ro channel-wavelength? uint32
+--ro bit-rate? decimal64
+--ro BER? decimal64
+--ro pmd? decimal64
+--ro cd? decimal64
+--ro osnr? decimal64
+--ro q-factor? decimal64
augment /nw:networks/nw:network/nt:link/tet:te/tet:te-link-
attributes/tet:underlay/tet:backup-path/tet:path-
element/tet:type/tet:label/tet:label-hop/tet:te-label/tet:technology:
+--:(optical-imp-topo)
+--rw (grid-type)?
| +--:(flexi-grid)
| | +--ro central-channel-freq? decimal64
| | +--ro slot-width? decimal64
| +--:(dwdm)
| | +--ro channel-freq? decimal64
| +--:(cwdm)
| +--ro channel-wavelength? uint32
+--ro bit-rate? decimal64
+--ro BER? decimal64
+--ro pmd? decimal64
+--ro cd? decimal64
+--ro osnr? decimal64
+--ro q-factor? decimal64
augment /nw:networks/tet:te/tet:templates/tet:link-template/tet:te-link-
attributes/tet:underlay/tet:primary-path/tet:path-
element/tet:type/tet:label/tet:label-hop/tet:te-label/tet:technology:
+--:(optical-imp-topo)
+--rw (grid-type)?
| +--:(flexi-grid)
| | +--ro central-channel-freq? decimal64
| | +--ro slot-width? decimal64
| +--:(dwdm)
| | +--ro channel-freq? decimal64
| +--:(cwdm)
| +--ro channel-wavelength? uint32
+--ro bit-rate? decimal64
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+--ro BER? decimal64
+--ro pmd? decimal64
+--ro cd? decimal64
+--ro osnr? decimal64
+--ro q-factor? decimal64
augment /nw:networks/tet:te/tet:templates/tet:link-template/tet:te-link-
attributes/tet:underlay/tet:backup-path/tet:path-
element/tet:type/tet:label/tet:label-hop/tet:te-label/tet:technology:
+--:(optical-imp-topo)
+--rw (grid-type)?
| +--:(flexi-grid)
| | +--ro central-channel-freq? decimal64
| | +--ro slot-width? decimal64
| +--:(dwdm)
| | +--ro channel-freq? decimal64
| +--:(cwdm)
| +--ro channel-wavelength? uint32
+--ro bit-rate? decimal64
+--ro BER? decimal64
+--ro pmd? decimal64
+--ro cd? decimal64
+--ro osnr? decimal64
+--ro q-factor? decimal64
augment /nw:networks/nw:network/nw:node/tet:te/tet:tunnel-termination-point:
+--rw available-operational-mode* layer0-types:operational-mode
+--rw operational-mode? layer0-types:operational-mode
+--rw vendor-identifier? layer0-types:vendor-identifier
+--rw transponder-id? uint32
+--ro available-modulation* identityref
+--rw modulation-enabled? boolean
+--rw modulation-type? identityref
+--ro available-FEC* identityref
+--rw FEC-enabled? boolean
+--rw FEC-type? identityref
+--ro FEC-code-rate? decimal64
+--rw FEC-threshold? decimal64
+--ro power? int32
+--ro power-min? int32
+--ro power-max? int32
augment /nw:networks/nw:network/nw:node/tet:te/tet:tunnel-termination-point:
+--ro transponder-list* [carrier-id]
+--ro carrier-id uint32
3. Optical Impairment Topology YANG Model
<CODE BEGINS> file ietf-optical-impairment-topology@2018-10-22.yang
module ietf-optical-impairment-topology {
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yang-version 1.1;
namespace "urn:ietf:params:xml:ns:yang:ietf-optical-impairment-topology";
prefix "optical-imp-topo";
import ietf-network {
prefix "nw";
}
import ietf-network-topology {
prefix "nt";
}
import ietf-te-topology {
prefix "tet";
}
import ietf-layer0-types {
prefix "layer0-types";
}
organization
"IETF CCAMP Working Group";
contact
"Editor: Young Lee <leeyoung@huawei.com>
Editor: Haomian Zheng <zhenghaomian@huawei.com>
Editor: Nicola Sambo <nicosambo@gmail.com>
Editor: Victor Lopez <victor.lopezalvarez@telefonica.com>
Editor: Gabriele Galimberti <ggalimbe@cisco.com>";
description
"This module contains a collection of YANG definitions for
impairment-aware optical networks.
Copyright (c) 2018 IETF Trust and the persons identified as
authors of the code. All rights reserved.
Redistribution and use in source and binary forms, with or
without modification, is permitted pursuant to, and subject
to the license terms contained in, the Simplified BSD
License set forth in Section 4.c of the IETF Trust's Legal
Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info).";
revision 2018-10-22 {
description
"version 0.";
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reference
"RFC XXX: A Yang Data Model for Impairment-aware Optical Networks ";
}
identity modulation {
description "base identity for modulation type";
}
identity QPSK {
base modulation;
description
"QPSK (Quadrature Phase Shift Keying) modulation";
}
identity DP_QPSK {
base modulation;
description
"DP-QPSK (Dual Polarization Quadrature
Phase Shift Keying) modulation";
}
identity QAM8 {
base modulation;
description
"8QAM (8-State Quadrature Amplitude Modulation) modulation";
}
identity QAM16 {
base modulation;
description
"QAM16 (Quadrature Amplitude Modulation)";
}
identity DP_QAM8 {
base modulation;
description
"DP-QAM8 (Dual Polarization Quadrature Amplitude Modulation)";
}
identity DC_DP_QAM8 {
base modulation;
description
"DC DP-QAM8 (Dual Polarization Quadrature Amplitude Modulation)";
}
identity DP_QAM16 {
base modulation;
description
"DP-QAM16 (Dual Polarization Quadrature Amplitude Modulation)";
}
identity DC_DP_QAM16 {
base modulation;
description
"DC DP-QAM16 (Dual Polarization Quadrature Amplitude Modulation)";
}
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identity FEC {
description
"Enumeration that defines the type of
Forward Error Correction";
}
identity reed-solomon {
base FEC;
description
"Reed-Solomon error correction";
}
identity hamming-code {
base FEC;
description
"Hamming Code error correction";
}
identity golay {
base FEC;
description "Golay error correction";
}
typedef fiber-type {
type enumeration {
enum G.652 {
description "G.652 Standard Singlemode Fiber";
}
enum G.654 {
description "G.654 Cutoff Shifted Fiber";
}
enum G.653 {
description "G.653 Dispersion Shifted Fiber";
}
enum G.655 {
description "G.655 Non-Zero Dispersion Shifted Fiber";
}
enum G.656 {
description "G.656 Non-Zero Dispersion for Wideband
Optical Transport";
}
enum G.657 {
description "G.657 Bend-Insensitive Fiber";
}
}
description
"ITU-T based fiber-types";
}
grouping optical-label {
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description
"Generic label for optical links and paths";
choice grid-type {
description
"Label for Flexigrid, DWDM or CWDM grid";
case flexi-grid {
leaf central-channel-freq {
type decimal64 {
fraction-digits 5;
}
units THz;
config false;
description
"The Flexi-grid central frequency in THz, e.g. 193.12500";
reference
"RFC7698";
}
leaf slot-width {
type decimal64 {
fraction-digits 5;
}
units GHz;
config false;
description
"The Flexi-grid slot width in GHz, e.g. 50, 100, 150.";
reference
"RFC7698";
}
}
case dwdm {
leaf channel-freq {
type decimal64 {
fraction-digits 5;
}
units THz;
config false;
description
"The DWDM frequency in THz, e.g. 193.12500";
reference
"RFC6205";
}
}
case cwdm {
leaf channel-wavelength {
type uint32;
units nm;
config false;
description
"The CWDM wavelength in nanometer, e.g. 1511";
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reference
"RFC6205";
}
}
}
}
grouping transponder-attributes {
description "Configuration of an optical transponder";
leaf-list available-modulation {
type identityref {
base modulation;
}
config false;
description
"List determining all the available modulations";
}
leaf modulation-enabled {
type boolean;
description
"Determines whether the modulation is enabled or not";
}
leaf modulation-type {
type identityref {
base modulation;
}
description
"Modulation type of the transponder";
}
leaf-list available-FEC {
type identityref {
base FEC;
}
config false;
description "List determining all the available FEC";
}
leaf FEC-enabled {
type boolean;
description
"Determines whether the FEC is enabled or not";
}
leaf FEC-type {
type identityref {
base FEC;
}
description
"FEC type of the transponder";
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}
leaf FEC-code-rate {
type decimal64 {
fraction-digits 8;
range "0..max";
}
config false;
description "FEC-code-rate";
}
leaf FEC-threshold {
type decimal64 {
fraction-digits 8;
range "0..max";
}
description "Threshold on the BER, for which FEC is able to correct errors";
}
leaf power {
type int32;
units "dBm";
config false;
description "per channel power";
}
leaf power-min {
type int32;
units "dBm";
config false;
description "minimum power of the transponder";
}
leaf power-max {
type int32;
units "dBm";
config false;
description "maximum power of the transponder";
}
}
grouping sliceable-transponder-attributes {
description
"Configuration of a sliceable transponder.";
list transponder-list {
key "carrier-id";
config false;
description "List of carriers";
leaf carrier-id {
type uint32;
config false;
description "Identifier of the carrier";
}
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}
}
/* grouping wson-node-attributes {
description "WSON node attributes";
container wson-node {
description "WSON node attrtibutes.";
leaf node-type {
type identityref {
base te-wson-types:wson-node-type;
}
description "WSON node type.";
}
}
}
*/
grouping optical-fiber-data {
description "optical link (fiber) attributes with impairment data";
leaf fiber-type {
type fiber-type;
config false;
description "fiber-type";
}
leaf power {
type int32;
units "dBm";
config false;
description "Total Input Power Level at the line port of the link";
}
leaf pmd {
type decimal64 {
fraction-digits 8;
range "0..max";
}
units "ps/(km)^0.5";
config false;
description "Polarization Mode Dispersion";
}
leaf cd {
type decimal64 {
fraction-digits 5;
}
units "ps/nm/km";
config false;
description "Cromatic Dispersion";
}
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leaf osnr {
type decimal64 {
fraction-digits 5;
}
units "dB";
config false;
description "osnr";
}
/* leaf sigma {
type decimal64 {
fraction-digits 5;
}
units "dB";
config false;
description "sigma in the Gausian Noise Model";
}
*/
}
grouping optical-impairment-data {
description "optical impairment data per channel/wavelength";
leaf bit-rate {
type decimal64 {
fraction-digits 8;
range "0..max";
}
units "Gbit/s";
config false;
description "Gross bit rate";
}
leaf BER {
type decimal64 {
fraction-digits 18;
range "0..max";
}
config false;
description "BER";
}
leaf pmd {
type decimal64 {
fraction-digits 8;
range "0..max";
}
units "ps/(km)^0.5";
config false;
description "Polarization Mode Dispersion";
}
leaf cd {
type decimal64 {
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fraction-digits 5;
}
units "ps/nm/km";
config false;
description "Cromatic Dispersion";
}
leaf osnr {
type decimal64 {
fraction-digits 5;
}
units "dB";
config false;
description "osnr";
}
leaf q-factor {
type decimal64 {
fraction-digits 5;
}
units "dB";
config false;
description "q-factor";
}
}
grouping wson-ttp-attributes {
description
"WSON tunnel termination point (e.g.tranponder) attributes";
leaf-list available-operational-mode {
type layer0-types:operational-mode;
description "List of all vendor-specific supported
mode identifiers";
}
leaf operational-mode {
type layer0-types:operational-mode;
description "Vendor-specific mode identifier";
}
leaf vendor-identifier {
type layer0-types:vendor-identifier;
description "vendor identifier that uses vendor-specific mode";
}
}
/* Data nodes */
augment "/nw:networks/nw:network/nw:network-types"
+ "/tet:te-topology" {
description "optical-impairment topology augmented";
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container optical-impairment-topology {
presence "indicates an impairment-aware topology of optical networks";
description
"Container to identify impairment-aware topology type";
}
}
augment "/nw:networks/nw:network/nt:link/tet:te"
+ "/tet:te-link-attributes" {
when "/nw:networks/nw:network/nw:network-types"
+"/tet:te-topology/optical-imp-topo:optical-impairment-topology" {
description
"This augment is only valid for Optical Impairment.";
}
description "Optical Link augmentation for impairment data.";
uses optical-fiber-data;
}
/* Augment label hop of underlay primary path of TE link */
augment "/nw:networks/nw:network/nt:link/tet:te/"
+ "tet:te-link-attributes/"
+ "tet:underlay/tet:primary-path/tet:path-element/tet:type/"
+ "tet:label/tet:label-hop/tet:te-label/tet:technology" {
when "../../../../../../../../"
+ "nw:network-types/tet:te-topology/"
+ "optical-imp-topo:optical-impairment-topology" {
description "Augment optical TE label";
}
description "optical label.";
case optical-imp-topo {
uses optical-label;
uses optical-impairment-data;
}
}
/* Augment label hop of underlay backup path of TE link */
augment "/nw:networks/nw:network/nt:link/tet:te/"
+ "tet:te-link-attributes/"
+ "tet:underlay/tet:backup-path/tet:path-element/tet:type/"
+ "tet:label/tet:label-hop/tet:te-label/tet:technology" {
when "../../../../../../../../"
+ "nw:network-types/tet:te-topology/"
+ "optical-imp-topo:optical-impairment-topology" {
description "Augment optical TE label";
}
description "optical label.";
case optical-imp-topo {
uses optical-label;
uses optical-impairment-data;
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}
}
/* Augment label hop of underlay primary path of TE link template */
augment "/nw:networks/tet:te/tet:templates/"
+ "tet:link-template/tet:te-link-attributes/"
+ "tet:underlay/tet:primary-path/tet:path-element/tet:type/"
+ "tet:label/tet:label-hop/tet:te-label/tet:technology" {
/*
when "../../../../../../../../../"
+ "nw:network-types/tet:te-topology/"
+ "optical-imp-topo:optical-impairment-topology" {
description "Augment Optical TE label";
}
*/
description "optical label.";
case optical-imp-topo {
uses optical-label;
uses optical-impairment-data;
}
}
/* Augment label hop of underlay backup path of TE link template */
augment "/nw:networks/tet:te/tet:templates/"
+ "tet:link-template/tet:te-link-attributes/"
+ "tet:underlay/tet:backup-path/tet:path-element/tet:type/"
+ "tet:label/tet:label-hop/tet:te-label/tet:technology" {
/*
when "../../../../../../../../../"
+ "nw:network-types/tet:te-topology/"
+ "optical-imp-topo:optical-impairment-topology" {
description "Augment Optical TE label";
}
*/
description "optical label.";
case optical-imp-topo {
uses optical-label;
uses optical-impairment-data;
}
}
/*
augment "/nw:networks/nw:network/nw:node/tet:te"
+ "/tet:te-node-attributes" {
when "/nw:networks/nw:network/nw:network-types"
+"/tet:te-topology/optical-imp-topo:optical-impairment-topology" {
description
"This augment is only valid for WSON.";
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}
description "WSON Node augmentation.";
uses wson-node-attributes;
}
*/
augment "/nw:networks/nw:network/nw:node/tet:te"
+ "/tet:tunnel-termination-point" {
when "/nw:networks/nw:network/nw:network-types"
+"/tet:te-topology/optical-imp-topo:optical-impairment-topology" {
description
"This augment is only valid for Impairment with non-sliceable
transponder model";
}
description
"Tunnel termination point
augmentation for non-sliceable transponder model.";
uses wson-ttp-attributes;
leaf transponder-id {
type uint32;
description "transponder identifier";
}
uses transponder-attributes;
}
augment "/nw:networks/nw:network/nw:node/tet:te"
+ "/tet:tunnel-termination-point" {
when "/nw:networks/nw:network/nw:network-types"
+"/tet:te-topology/optical-imp-topo:optical-impairment-topology" {
description
"This augment is only valid for optical impairment with sliceable
transponder model";
}
description
"Tunnel termination point augmentation for sliceable transponder model.";
uses sliceable-transponder-attributes;
}
}
<CODE ENDS>
4. 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]. The NETCONF access
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control model [RFC6536] provides the means to restrict access for
particular NETCONF users to a preconfigured subset of all available
NETCONF protocol operations and content.
A number of configuration data nodes defined in this document are
read-only; however, these data nodes may be considered sensitive or
vulnerable in some network environments (TBD).
5. IANA Considerations
This document registers the following namespace URIs in the IETF XML
registry [RFC3688]:
--------------------------------------------------------------------
URI: urn:ietf:params:xml:ns:yang:ietf-optical-impairment-topology
Registrant Contact: The IESG.
XML: N/A, the requested URI is an XML namespace.
--------------------------------------------------------------------
This document registers the following YANG modules in the YANG
Module Names registry [RFC7950]:
--------------------------------------------------------------------
name: ietf-optical-impairment-topology
namespace: urn:ietf:params:xml:ns:yang:ietf-optical-impairment-
topology
reference: RFC XXXX (TDB)
--------------------------------------------------------------------
6. Acknowledgments
We thank Dieter Bella and Sergio Belotti for useful discussions and
motivation for this work.
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7. References
7.1. Normative References
7.2. Informative References
[RFC6241] Enns, R., Ed., Bjorklund, M., Ed., Schoenwaelder, J., Ed.,
and A. Bierman, Ed., "Network Configuration Protocol
(NETCONF)", RFC 6241, June 2011.
[RFC6566] Y. Lee, G. Bernstein, D. Li, G. Martinelli, "A Framework
for the Control of Wavelength Switched Optical Networks
(WSONs) with Impairments", RFC 6566, March 2012.
[RFC7446] Y. Lee, G. Bernstein, D. Li, W. Imajuku, "Routing and
Wavelength Assignment Information Model for Wavelength
Switched Optical Networks", RFC 7446, Feburary 2015.
[RFC7579] G. Bernstein, Y. Lee, D. Li, W. Imajuku, "General
Network Element Constraint Encoding for GMPLS Controlled
Networks", RFC 7579, June 2015.
[RFC7581] G. Bernstein, Y. Lee, D. Li, W. Imajuku, "Routing and
Wavelength Assignment Information Encoding for Wavelength
Switched Optical Networks", RFC 7581, June 2015.
[RFC7950] Bjorklund, M., Ed., "The YANG 1.1 Data Modeling Language",
RFC 7950, August 2016.
[RFC8341] Bierman, A. and M. Bjorklund, "Network Configuration
Access Control Model", RFC 8341, March 2018.
[RFC8342] Bjorklund, M., Schoenwaelder, J., Shafer, P., Watsen, K.,
and R. Wilton, "Network Management Datastore Architecture
(NMDA)", RFC 8342, March 2018.
[RFC8345] A. Clemm, et al, "A YANG Data Model for Network
Topologies", RFC 8345, March 2018.
[TE-TOPO] X. Liu, et al., "YANG Data Model for TE Topologies", work
in progress: draft-ietf-teas-yang-te-topo.
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[RFC8453] Ceccarelli, D. and Y. Lee, "Framework for Abstraction and
Control of Traffic Engineered Networks", RFC 8453, August
2018.
[WSON-Topo] Y. Lee, Ed., "A Yang Data Model for WSON Optical
Networks", draft-ietf-ccamp-wson-yang-13, work in
progress.
8. Contributors
Giovanni Martinelli
Cisco
Email: giomarti@cisco.com
Jonas Martensson
Acro
Email: jonas.martensson@ri.se
Gert Grammel
Juniper
Email: ggrammel@juniper.net
Authors' Addresses
Young Lee
Huawei Technologies
5700 Tennyson Parkway, Suite 600
Plano, TX 75024
USA
Phone: (469) 277-5838
Email: leeyoung@huawei.com
Haomian Zheng
Huawei Technologies
Email: zhenghaomian@huawei.com
Nicola Sambo
Scuola Superiore Sant'Anna
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Email: nicosambo@gmail.com
Victor Lopez
Telefonica
Email: victor.lopezalvarez@telefonica.com
G. Galimberti
Cisco
Email: ggalimbe@cisco.com
Lee, et al. Expires April 2019 [Page 22]