Internet DRAFT - draft-vergara-ccamp-flexigrid-yang
draft-vergara-ccamp-flexigrid-yang
CCAMP Working Group J.E. Lopez de Vergara
Internet Draft Universidad Autonoma de Madrid
Intended status: Standards Track Daniel Perdices
Expires: July 12, 2018 Naudit HPCN
V. Lopez
O. Gonzalez de Dios
Telefonica I+D/GCTO
D. King
Lancaster University
Y. Lee
Huawei
G. Galimberti
Cisco Photonics Srl
January 8, 2018
YANG data model for Flexi-Grid Optical Networks
draft-vergara-ccamp-flexigrid-yang-06.txt
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Abstract
This document defines a YANG model for managing flexi-grid optical
Networks. The model described in this document defines a flexi-grid
traffic engineering database. A complementary module is referenced
to detail the flexi-grid media channels.
This module is grounded on other defined YANG abstract models.
Table of Contents
1. Introduction .............................................. 2
2. Conventions used in this document ......................... 3
3. Flexi-grid network topology model overview ................ 3
4. Main building blocks of the Flexi-grid TED................. 4
4.1 Formal Syntax ......................................... 7
5. Example of use ............................................ 8
6. Flexi-grid TED YANG Model.................................. 9
6.1. YANG Model - Tree .................................... 9
6.2. YANG Model - Code .................................... 10
6.3. License .............................................. 19
7. Security Considerations ................................... 20
8. IANA Considerations ....................................... 20
9. References ................................................ 20
9.1. Normative References ................................. 20
9.2. Informative References ............................... 21
10. Contributors ............................................. 21
11. Acknowledgments .......................................... 22
Authors' Addresses ........................................... 22
1. Introduction
Internet-based traffic is dramatically increasing every year.
Moreover, such traffic is also becoming more dynamic. Thus,
transport networks need to evolve from current DWDM systems towards
elastic optical networks, based on flexi-grid transmission and
switching technologies [RFC7698]. This technology aims at increasing
both transport network scalability and flexibility, allowing the
optimization of bandwidth usage.
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This document presents a YANG model for flexi-grid objects in the
dynamic optical network, including the nodes, transponders and links
between them, as well as how such links interconnect nodes and
transponders.
The YANG model for flexi-grid networks allows the representation of
the flexi-grid optical layer of a network, combined with the
underlying physical layer.
This document identifies the flexi-grid 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. Conventions used in this document
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in [RFC2119].
In this document, these words will appear with that interpretation
only when in ALL CAPS. Lower case uses of these words are not to be
interpreted as carrying RFC-2119 significance.
In this document, the characters ">>" preceding an indented line(s)
indicates a compliance requirement statement using the key words
listed above. This convention aids reviewers in quickly identifying
or finding the explicit compliance requirements of this RFC.
3. Flexi-grid network topology model overview
YANG is a data modeling language used to model configuration data
manipulated by the NETCONF protocol. Several YANG models have already
been specified for network configurations. For instance, the work in
[I-D.draft-ietf-i2rs-yang-network-topo] has proposed a generic YANG
model for network/service topologies and inventories. The work in
[I-D.draft-ietf-teas-yang-te-topo] presents a data model to
represent, retrieve and manipulate Traffic Engineering (TE)
Topologies. These models serve as base models that other technology
specific models can augment. A YANG model has also been proposed in
[I-D.draft-dharini-ccamp-dwdm-if-yang] to manage single channel
optical interface parameters of DWDM applications, and in
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[I-D.draft-ietf-ccamp-wson-yang] another model has been specified for
the routing and wavelength assignment TE topology in wavelength
switched optical networks (WSONs). None of them are specific for
flexi-grid technology.
Then, as stated before, we propose a model to describe a flexi-grid
topology that is split in two YANG sub-modules:
o Flexi-grid-TED: In order to be compatible with existing
proposals, we augment the definitions contained in
[I-D.draft-ietf-i2rs-yang-network-topo] and
[I-D.draft-ietf-teas-yang-te-topo], by defining the different
elements we can find in a flexi-grid network: a node, a transponder
and a link. For that, each of those elements is defined as a
container that includes a group of attributes. References to the
elements are provided to be later used in the definition of a
media channel. It also includes the data types for the type of
modulation, the flexi-grid technology, the FEC, etc.
o Media-channel: This module defines the whole path from a source
transponder to the destination through a number of intermediate
nodes and links. For this, it takes the information defined before
in the flexi-grid TED. This module is described in
[I-D.draft-vergara-ccamp-flexigrid-media-channel-yang]
The following section provides a detailed view of the first module.
4. Main building blocks of the Flexi-grid TED
This section details the defined YANG module. It is listed below in
section 6.
The description of the three main components, flexi-grid-node,
flexi-grid-transponder and flexi-grid-link is provided below.
flexi-grid-sliceable-transponders are also defined.
<flexi-grid-node> ::= <config> <state>
<flexi-grid-node>: This element designates a node in the
network.
<config> ::= <flexi-grid-node-attributes-config>
<config>: Contains the configuration of a node.
<flexi-grid-node-attributes-config> ::= <list-interface>
<connectivity_matrix>
<flexi-grid-node-attributes-config>: Contains all the
attributes related to the node configuration, such as
its interfaces or its management addresses.
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<list-interface> ::= <name> <port-number>
<input-port> <output-port> <description>
<interface-type>
[<numbered-interface> / <unnumbered-interface>]
<list-interface>: The list containing all the
information of the interfaces.
<name>: Determines the interface name.
<port-number>: Port number of the interface.
<input-port>: Boolean value that defines
whether the interface is input or not.
<output-port>: Boolean value that defines
whether the interface is output or not.
<description>: Description of the usage of
the interface.
<interface-type>: Determines if the interface
is numbered or unnumbered.
<numbered-interface> ::= <n-i-ip-address>
<numbered-interface>: An interface with
its own IP address.
<n-i-ip-address>: Only available if
<interface-type> is "numbered-interface".
Determines the IP address of the interface.
<unnumbered-interface> ::= <u-i-ip-address>
<label>
<unnumbered-interface>: A interface that
needs a label to be unique.
<u-i-ip-address>: Only available if
<interface-type> is "numbered-interface".
Determines the node IP address, which with
the label defines the interface.
<label>: Label that determines the
interface, joint with the node IP address.
<connectivity-matrix> ::= <connections>
<connectivity-matrix>: Determines whether a
connection port in/port out exists.
<connections> ::= <input-port-id>
<output-port-id>
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<flexi-grid-transponder> ::= <transponder-type> <config> <state>
<flexi-grid-transponder>: This item designates a transponder
of a node.
<config> ::= <flexi-grid-transponder-attributes-config>
<config>: Contains the configuration of a transponder.
<flexi-grid-transponder-attributes-config> ::=
<available-operational-mode> <operational-mode>
<flexi-grid-transponder-attributes>: Contains all the
attributes related to the transponder.
<available-operational-mode>: It provides a list of the
operational modes available at this transponder.
<operational-mode>: Determines the type of operational
mode in use.
<state> ::= <flexi-grid-transponder-attributes-config>
<flexi-grid-transponder-attributes-state>
<state>: Contains the state of a transponder.
<flexi-grid-transponder-attributes-config>: See above.
<flexi-grid-transponder-attributes-state>: Contains the
state of a transponder.
<link> ::= <config> <state>
<link>: This element describes all the information of a link.
<config> ::= <flexi-grid-link-attributes-config>
<config>: Contains the configuration of a link.
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<flexi-grid-link-attributes-config> ::= <technology-type>
<available-label-flexi-grid> <N-max> <base-frequency>
<nominal-central-frequency-granularity>
<slot-width-granularity>
<flexi-grid-link-attributes>: Contains all the
attributes related to the link, such as its unique id,
its N value, its latency, etc.
<link-id>: Unique id of the link.
<available-label-flexi-grid>: Array of bits that
determines, with each bit, the availability of each
interface for flexi-grid technology.
<N-max>: The max value of N in this link, being N
the number of slots.
<base-frequency>: The default central frequency
used in the link.
<nominal-central-frequency-granularity>: It is the
spacing between allowed nominal central frequencies
and it is set to 6.25 GHz (note: sometimes referred
to as 0.00625 THz).
<slot-width-granularity>: 12.5 GHz, as defined
in G.694.1.
<state> ::= <flexi-grid-link-attributes-config>
<flexi-grid-link-attributes-state>
<state>: Contains the state of a link.
<flexi-grid-link-attributes-config>: See above.
<flexi-grid-link-attributes-state>: Contains all the
the information related to the state of a link.
4.1. Formal Syntax
The previous syntax specification uses the augmented Backus-Naur
Form (BNF) as described in [RFC5234].
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5. Example of use
In order to explain how this model is used, we provide the following
example. An optical network usually has multiple transponders,
switches (nodes) and links between them. Figure 1 shows a simple
topology, where two physical paths interconnect two optical
transponders.
Media channel
<==================================================>
Path x
<-------------------------------------------------->
+----------+ +----------+
Link 1 |Flexi-grid| Link 2 |Flexi-grid| Link 3
.--->| node |<-------->| node |<---.
| | B | | C | |
| +----------+ +----------+ |
v v
/-----------\ /-----------\
/ Flexi-grid \ / Flexi-grid \
| transponder | | transponder |
\ A / \ E /
\-----------/ \-----------/
^ ^
| +----------+ |
| Link 4 |Flexi-grid| Link 5 |
'------------>| node |<-----------'
| D |
+----------+
<-------------------------------------------------->
Path y
Figure 1. Topology example.
In order to configure a media channel to interconnect transponders A
and E, first of all we have to populate the flexi-grid TED YANG model
with all elements in the network:
1. We define the transponders A and E, including their FEC type, if
enabled, and modulation type. We also provide node identifiers
and addresses for the transponders, as well as interfaces
included in the transponders. Sliceable transponders can also be
defined if needed.
2. 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.
3. Then, we also define the links 1 to 5 that interconnect nodes and
transponders, indicating which flexi-grid labels are available.
Other information, such as the slot frequency and granularity are
also provided.
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Next, we can configure the media channel from the information we
have stored in the flexi-grid TED, 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 TED has a
reference, and this is the way in which they are called in the media
channel. We refer to
[I-D.draft-vergara-ccamp-flexigrid-media-channel-yang] to complete
this example.
6. Flexi-grid TED YANG Model
6.1. Yang Model - Tree Structure
module: ietf-flexi-grid-topology
augment /nd-s:networks/nd-s:network/nd-s:node/tet-s:te/
tet-s:te-node-attributes:
+--ro interfaces* [name]
+--ro name string
+--ro port-number? uint32
+--ro input-port? boolean
+--ro output-port? boolean
+--ro description? string
+--ro type? interface-type
+--ro numbered-interface
| +--ro n-i-ip-address? inet:ip-address
+--ro unnumbered-interface
+--ro u-i-ip-address? inet:ip-address
+--ro label? uint32
flexi-grid-connectivity-matrix-attributes
augment /nd:networks/nd:network/nd:node/tet:te/
tet:te-node-attributes/tet:connectivity-matrices/
tet:connectivity-matrix:
+--rw connections* [input-port-id]
+--rw input-port-id flexi-grid-node-port-ref
+--rw output-port-id? flexi-grid-node-port-ref
flexi-grid-connectivity-matrix-attributes
augment /nd-s:networks/nd-s:network/nd-s:node/tet-s:te/
tet-s:te-node-attributes/tet-s:connectivity-matrices/
tet-s:connectivity-matrix:
+--ro connections* [input-port-id]
+--ro input-port-id flexi-grid-node-port-ref
+--ro output-port-id? flexi-grid-node-port-ref
flexi-grid-transponder
augment /nd:networks/nd:network/nd:node/tet:te/
tet:tunnel-termination-point:
+--rw available-operational-mode* operational-mode
+--rw operational-mode? operational-mode
flexi-grid-transponder
augment /nd-s:networks/nd-s:network/nd-s:node/tet-s:te/
tet-s:tunnel-termination-point:
+--ro available-operational-mode* operational-mode
+--ro operational-mode? operational-mode
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A.2. YANG Model - Code
<CODE BEGINS> file "ietf-flexi-grid-ted@2018-01-08.yang"
module ietf-flexi-grid-ted {
yang-version 1.1;
namespace "urn:ietf:params:xml:ns:yang:ietf-flexi-grid-ted";
prefix "fg-ted";
import ietf-network {
prefix "nd";
}
import ietf-network-state {
prefix "nd-s";
}
import ietf-network-topology {
prefix "lnk";
}
import ietf-network-topology-state {
prefix "lnk-s";
}
import ietf-te-topology {
prefix "tet";
}
import ietf-te-topology-state {
prefix "tet-s";
}
import ietf-inet-types {
prefix "inet";
}
organization
"IETF CCAMP Working Group";
contact
"Editor: Jorge Lopez de Vergara
<jorge.lopez_vergara@uam.es>";
description
"This module contains a collection of YANG definitions for
a Flexi-Grid Traffic Engineering Database (TED).
Copyright (c) 2018 IETF Trust and the persons identified as
authors of the code. All rights reserved.
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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 2018-01-08 {
description
"version 5.";
reference
"RFC XXX: A Yang Data Model for
Flexi-Grid Optical Networks ";
}
/*
Typedefs
*/
typedef operational-mode {
type string;
description
"Vendor-specific mode that guarantees interoperability.
It must be an string with the following format:
B-DScW-ytz(v) where all these attributes are conformant
to the ITU-T recomendation";
reference "ITU-T G.698.2 (11/2009) Section 5.3";
}
typedef interface-type {
type enumeration {
enum numbered-interface {
description "The interface is numbered";
}
enum unnumbered-interface {
description "The interface is unnumbered";
}
}
description
"Enumeration that defines if an interface is numbered or
unnumbered";
}
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/*
Typedef related to references
*/
typedef flexi-grid-link-ref {
type leafref {
path
"/nd:networks/nd:network/lnk:link/lnk:link-id";
}
description
"This type is used by data models that need to reference
a flexi-grid optical link.";
}
typedef flexi-grid-node-port-ref {
type leafref {
path "/nd:networks/nd:network/nd:node/tet:te/"
+"tet:te-node-attributes/fg-ted:interfaces/"
+"fg-ted:port-number";
}
description
"This type is used by data models that need to reference
a flexi-grid port.";
}
typedef flexi-grid-transponder-ref {
type leafref {
path "/nd:networks/nd:network/nd:node/tet:te/"+
"tet:tunnel-termination-point/tet:tunnel-tp-id";
}
description
"This type is used by data models that need to reference
a trasponder.";
}
/*
Groupings of attributes
*/
grouping flexi-grid-network-type {
container flexi-grid-network {
presence "indicates a flexi-grid optical network";
description "flexi-grid optical network";
}
description "If present, it indicates a flexi-grid
optical TED network";
}
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grouping flexi-grid-node-attributes {
description "Set of attributes of an optical node.";
list interfaces {
key "name";
unique "port-number"; // TODO Puerto y TP ID
description "List of interfaces contained in the node";
leaf name {
type string;
description "Interface name";
}
leaf port-number {
type uint32;
description "Number of the port used by the interface";
}
leaf input-port {
type boolean;
description "Determines if the port is an input port";
}
leaf output-port {
type boolean;
description
"Determines if the port is an output port";
}
leaf description {
type string;
description "Description of the interface";
}
leaf type {
type interface-type;
description "Determines the type of the interface";
}
container numbered-interface {
when "../fg-ted:type =
'numbered-interface'" {
description
"If the interface is a numbered interface";
}
description "Container that defines an numbered
interface with an ip-address";
leaf n-i-ip-address{
type inet:ip-address;
description "IP address of the numbered interface";
}
}
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container unnumbered-interface {
when "../fg-ted:type =
'unnumbered-interface'" {
description
"If the interface is an unnumbered interface";
}
description "Container that defines an unnumbered
interface with an ip-address and a label";
leaf u-i-ip-address{
type inet:ip-address;
description "IP address of the interface";
}
leaf label {
type uint32;
description "Number as label for the interface";
}
}
}
}
grouping flexi-grid-link-attributes {
description "Set of attributes of an optical link";
leaf-list available-label-flexi-grid {
type bits {
bit is-available{
description "Set to 1 when it is available";
}
}
description
"Array of bits that determines whether a spectral
slot is available or not.";
}
leaf N-max {
type int32;
description "Maximum number of channels available.";
}
leaf base-frequency {
type decimal64 {
fraction-digits 5;
}
units THz;
default 193.1;
description "Default central frequency";
reference "rfc7698";
}
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leaf nominal-central-frequency-granularity {
type decimal64 {
fraction-digits 5;
}
units GHz;
default 6.25;
description
"It is the spacing between allowed nominal central
frequencies and it is set to 6.25 GHz";
reference "rfc7698";
}
leaf slot-width-granularity {
type decimal64 {
fraction-digits 5;
}
units GHz;
default 12.5;
description "Minimum space between slot widths";
reference "rfc7698";
}
}
grouping flexi-grid-transponder-attributes {
description "Configuration of an optical transponder";
//TODO Validate attributes
leaf-list available-operational-mode {
type operational-mode;
description "List of all vendor-specific supported
mode identifiers";
}
leaf operational-mode {
type operational-mode;
description "Vendor-specific mode identifier";
}
}
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grouping flexi-grid-connectivity-matrix-attributes {
description "Connectivity matrix between the input and
output ports";
list connections {
key "input-port-id";
leaf input-port-id {
type flexi-grid-node-port-ref;
description "Identifier of the input port";
}
leaf output-port-id {
type flexi-grid-node-port-ref;
description "Identifier of the output port";
}
description "List of connections between input and
output ports";
}
}
/*
Augments
*/
augment "/nd:networks/nd:network/nd:network-types" {
uses flexi-grid-network-type;
description "Augment network-types including flexi-grid
topology";
}
augment "/nd-s:networks/nd-s:network/nd-s:network-types" {
uses flexi-grid-network-type;
description "Augment network-types including flexi-grid
topology";
}
augment "/nd:networks/nd:network/lnk:link/tet:te" +
"/tet:te-link-attributes" {
when "/nd:networks/nd:network/nd:network-types/
fg-ted:flexi-grid-network" {
description "Augment only for Flexigrid network.";
}
description "Augment link configuration";
uses flexi-grid-link-attributes;
}
augment "/nd-s:networks/nd-s:network/lnk-s:link/tet-s:te" +
"/tet-s:te-link-attributes" {
when "/nd-s:networks/nd-s:network/nd-s:network-types/
fg-ted:flexi-grid-network" {
description "Augment only for Flexigrid network.";
}
description "Augment link state";
uses flexi-grid-link-attributes;
}
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augment "/nd:networks/nd:network/nd:node/tet:te" +
"/tet:te-node-attributes" {
when "/nd:networks/nd:network/nd:network-types/
fg-ted:flexi-grid-network" {
description "Augment only for Flexigrid network.";
}
uses flexi-grid-node-attributes;
description "Augment node config with flexi-grid attributes";
}
augment "/nd-s:networks/nd-s:network/nd-s:node/tet-s:te" +
"/tet-s:te-node-attributes" {
when "/nd-s:networks/nd-s:network/nd-s:network-types/
fg-ted:flexi-grid-network" {
description "Augment only for Flexigrid network.";
}
uses flexi-grid-node-attributes;
description "Augment node state with flexi-grid attributes";
}
augment "/nd:networks/nd:network/nd:node/tet:te"+
"/tet:te-node-attributes/tet:connectivity-matrices/"+
"tet:connectivity-matrix" {
when "/nd:networks/nd:network/nd:network-types/
fg-ted:flexi-grid-network" {
description "Augment only for Flexigrid network.";
}
uses flexi-grid-connectivity-matrix-attributes;
description "Augment node connectivity-matrix for node config";
}
augment "/nd-s:networks/nd-s:network/nd-s:node/tet-s:te"+
"/tet-s:te-node-attributes/tet-s:connectivity-matrices/"+
"tet-s:connectivity-matrix" {
when "/nd-s:networks/nd-s:network/nd-s:network-types/
fg-ted:flexi-grid-network"{
description "Augment only for Flexigrid network.";
}
uses flexi-grid-connectivity-matrix-attributes;
description "Augment node connectivity-matrix for node config";
}
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augment "/nd:networks/nd:network/nd:node/tet:te"+
"/tet:tunnel-termination-point" {
when "/nd:networks/nd:network/nd:network-types/
fg-ted:flexi-grid-network"{
description "Augment only for Flexigrid network.";
}
uses flexi-grid-transponder-attributes;
description "Augment node state with transponder attributes";
}
augment "/nd-s:networks/nd-s:network/nd-s:node/tet-s:te"+
"/tet-s:tunnel-termination-point" {
when "/nd-s:networks/nd-s:network/nd-s:network-types/
fg-ted:flexi-grid-network"{
description "Augment only for Flexigrid network.";
}
uses flexi-grid-transponder-attributes;
description "Augment node state with transponder attributes";
}
}
<CODE ENDS>
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A.3. License
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, are permitted provided that the following conditions
are met:
o Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
o Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
o Neither the name of Internet Society, IETF or IETF Trust, nor the
names of specific contributors, may be used to endorse or promote
products derived from this software without specific prior
written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
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7. Security Considerations
The transport protocol used for sending the managed information MUST
support authentication and SHOULD support encryption.
The defined data-model by itself does not create any security
implications.
8. IANA Considerations
The namespace used in the defined models is currently based on the
METRO-HAUL project URI. Future versions of this document could
register a URI in the IETF XML registry [RFC3688], as well as in the
YANG Module Names registry [RFC6020].
9. References
9.1. Normative References
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997.
[RFC5234] Crocker, D. and P. Overell, "Augmented BNF for Syntax
Specifications: ABNF", STD 68, RFC 5234, January 2008,
<http:/www.rfc-editor.org/info/rfc5234>.
[RFC6020] Bjorklund, M., Ed., "YANG - A Data Modeling Language for
the Network Configuration Protocol (NETCONF)", RFC 6020,
October 2010.
[RFC3688] Mealling, M., "The IETF XML Registry", BCP 81, RFC 3688,
January 2004.
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Internet-Draft A YANG data model for Flexi-Grid January 2018
9.2. Informative References
[RFC7698] Gonzalez de Dios, O., Casellas, R., Eds. "Framework and
Requirements for GMPLS-Based Control of Flexi-Grid Dense
Wavelength Division Multiplexing (DWDM) Networks",
RFC7698, November 2015.
[I-D.draft-ietf-i2rs-yang-network-topo] Clemm, A., Medved, J.,
Varga, R., Bahadur, N., Ananthakrishnan, H., Liu, X.,
"A Data Model for Network Topologies", Internet Draft
draft-ietf-i2rs-yang-network-topo-20.txt, 2017.
[I-D.draft-ietf-teas-yang-te-topo] Liu, X., Bryskin, I., Pavan
Beeram, V., Saad, T., Shah, H., Gonzalez De Dios, O., "YANG
Data Model for TE Topologies", Internet Draft
draft-ietf-teas-yang-te-topo-13.txt, 2017
[I-D.draft-dharini-ccamp-dwdm-if-yang] Galimberti, G., Kunze, R.,
Lam, K., Hiremagalur, D., Grammel, G., Fang, L., Ratterree, G.,
Eds., "A YANG model to manage the optical interface parameters
for an external transponder in a WDM network", Internet Draft,
draft-dharini-ccamp-dwdm-if-param-yang-03.txt, 2016.
[I-D.draft-ietf-ccamp-wson-yang] Lee, Y. Dhody, D., Zhang, X., Guo,
A., Lopez, V., King, D., Yoon, B.,"A Yang Data Model for WSON
Optical Networks", Internet Draft,
draft-ietf-ccamp-wson-yang-09.txt, 2017.
[I-D.draft-vergara-ccamp-flexigrid-media-channel-yang] Lopez de
Vergara, J., Perdices, D., Lopez, V., Gonzalez de Dios, O.,
King, D., Lee, Y., Galimberti, G., "YANG data model for
Flexi-Grid media-channels", Internet Draft,
draft-vergara-ccamp-flexigrid-media-channel-yang-01, 2017.
10. Contributors
The model presented in this paper was contributed to by more people
than can be listed on the author list. Additional contributors
include:
o Zafar Ali, Cisco Systems
o Daniel Michaud Vallinoto, Universidad Autonoma de Madrid
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11. Acknowledgments
The work presented in this Internet-Draft has been partially funded
by the European Commission under the project H2020 METRO-HAUL
(Metro High bandwidth, 5G Application-aware optical network, with
edge storage, compUte and low Latency), Grant Agreement number:
761727, and by the Spanish Ministry of Economy and Competitiveness
under the project TRAFICA, MINECO/FEDER TEC2015-69417-C2-1-R.
Authors' Addresses
Jorge E. Lopez de Vergara
Universidad Autonoma de Madrid
Escuela Politecnica Superior
C/Francisco Tomas y Valiente, 11
E-28049 Madrid, Spain
Email: jorge.lopez_vergara@uam.es
Daniel Perdices Burrero
Naudit High Performance Computing and Networking, S.L.
C/Faraday, 7
E-28049 Madrid, Spain
Email: daniel.perdices@naudit.es
Victor Lopez
Telefonica I+D/GCTO
Distrito Telefonica
E-28050 Madrid, Spain
Email: victor.lopezalvarez@telefonica.com
Oscar Gonzalez de Dios
Telefonica I+D/GCTO
Distrito Telefonica
E-28050 Madrid, Spain
Email: oscar.gonzalezdedios@telefonica.com
Daniel King
Lancaster University
Email: d.king@lancaster.ac.uk
Young Lee
Huawei Technologies
Email: leeyoung@huawei.com
Gabriele Galimberti
Cisco Photonics Srl
Email: ggalimbe@cisco.com
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