CCAMP Working Group H. Zheng
Internet-Draft I. Busi
Intended status: Standards Track Huawei Technologies
Expires: January 14, 2021 Y. Zheng
China Unicom
July 13, 2020
A YANG Data Model for Client Signal Performance Monitoring
draft-zheng-ccamp-client-pm-yang-02
Abstract
A transport network is a server-layer network to provide connectivity
services to its client. Given the client signal is configured, the
followup function for performance monitoring, such as latency and bit
error rate, would be needed for network operation.
This document describes the data model to support the performance
monitoring functionalities.
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 January 14, 2021.
Copyright Notice
Copyright (c) 2020 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
Zheng, et al. Expires January 14, 2021 [Page 1]
Internet-Draft PM YANG for Client Signal July 2020
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
2. Terminology and Notations . . . . . . . . . . . . . . . . . . 3
3. Model Relationship . . . . . . . . . . . . . . . . . . . . . 3
4. Consideration on Monitoring Parameters . . . . . . . . . . . 4
5. OAM Configuration . . . . . . . . . . . . . . . . . . . . . . 4
6. YANG Model for Performance Monitoring . . . . . . . . . . . . 4
6.1. YANG Tree for Performance Monitoring . . . . . . . . . . 4
6.2. YANG Tree for OAM Configuration . . . . . . . . . . . . . 5
7. YANG Code for Performance Monitoring . . . . . . . . . . . . 6
7.1. The Performance Monitoring YANG Code . . . . . . . . . . 6
7.2. The OAM Configuration YANG Code . . . . . . . . . . . . . 14
8. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 18
9. Manageability Considerations . . . . . . . . . . . . . . . . 19
10. Security Considerations . . . . . . . . . . . . . . . . . . . 19
11. Contributors . . . . . . . . . . . . . . . . . . . . . . . . 19
12. References . . . . . . . . . . . . . . . . . . . . . . . . . 19
12.1. Normative References . . . . . . . . . . . . . . . . . . 19
12.2. Informative References . . . . . . . . . . . . . . . . . 20
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 20
1. Introduction
Client-layer network and server-layer network have been respectively
modeled to allow the tunnels carrying the client traffic. Server-
layers are modeled as tunnels with various switching technologies,
such as [I-D.ietf-ccamp-otn-tunnel-model] and
[I-D.ietf-ccamp-wson-tunnel-model]. Client-layers are modeled as
client signals according to the client-signal identities specified in
[I-D.ietf-ccamp-layer1-types]. These client signals can be
configured to existing tunnels via the client signal configuration
model specified in [I-D.ietf-ccamp-client-signal-yang].
In the network operation, the operator is interested in monitoring
for their instantiated client signal over tunnels. The objective for
such monitoring is to complete timely adjustment once there is
abnormal statistic which may result in failure of the client signal.
The parameters specified in the performance monitoring model can be
collected for the operation need. The OAM mechanism, can be
configured together with the performance monitoring model.
Zheng, et al. Expires January 14, 2021 [Page 2]
Internet-Draft PM YANG for Client Signal July 2020
2. Terminology and Notations
A simplified graphical representation of the data model is used in
this document. The meaning of the symbols in the YANG data tree
presented later in this document is defined in [RFC8340]. They are
provided below for reference.
o Brackets "[" and "]" enclose list keys.
o Abbreviations before data node names: "rw" means configuration
(read-write) and "ro" state data (read-only).
o Symbols after data node names: "?" means an optional node, "!"
means a presence container, and "*" denotes a list and leaf-list.
o Parentheses enclose choice and case nodes, and case nodes are also
marked with a colon (":").
o Ellipsis ("...") stands for contents of subtrees that are not
shown.
3. Model Relationship
[I-D.ietf-ccamp-client-signal-yang] has specified the two models for
the client signal configuration, module ietf-trans-client-service for
transparent client service and module ietf-eth-tran-service for
Ethernet service. Basically the client signal types in this document
is consistent with ietf-eth-tran-types, and focus on different
functionality. On the perspective of operator, the modules in
[I-D.ietf-ccamp-client-signal-yang] can be used to configure the
service given any underlay tunnels, while the operation about
monitoring the performance on given service can be achieved by using
the model in this document.
Consideration on Key Performance Information (KPI) monitoring for
Virtual Network (VN) and tunnels has been specified in
[I-D.ietf-teas-actn-pm-telemetry-autonomics]. Usually the monitoring
on the tunnels are the VNs should be separately deployed for the
network operation, but it is possible to have common parameters that
are both needed for the VN/TE and the configured services. Common
types are imported in both modules.
VPN-level parameters and their monitoring have been defined in
[I-D.www-bess-yang-vpn-service-pm]. This module focus on the
performance on the topology at different layer or the overlay
topology between VPN sites. On the other hand, this document is
focusing on the performance of the service configured between
Customer Ends (CE).
Zheng, et al. Expires January 14, 2021 [Page 3]
Internet-Draft PM YANG for Client Signal July 2020
4. Consideration on Monitoring Parameters
There can be multiple groups of parameters for monitoring, such as
latency, bit error rate (BER). Some of these parameters are layer-
dependent, for example, packet loss is only applicable in packet
networks are won't be neede for layer 1 OTN and layer 0 WSON.
This document starts with the specification of the latency
measurement for both Ethernet service and client signal service. In
the future version additional parameters would be added into the data
model in the same approach as the latency in the current version. A
candidate list of parameters to be monitored include: Latency, Packet
Loss, Bit Error Rate (BER), Jitter, Bandwidth, Byte/Packet number and
so on.
5. OAM Configuration
The operation, administration and maintenance protocols and data
models have been specified in [RFC8531] for the connection-oriented
network. The model is referenced in this work to develop an
Ethernet-specific OAM models, which is augmenting the service
performance monitoring data model.
The definitions of OAM terminologies, such as maintainence
Maintenance Domain (MD), Maintenance Association (MA), and
Maintenance End Points (MEP), can be found in [RFC8531] as well.
6. YANG Model for Performance Monitoring
6.1. YANG Tree for Performance Monitoring
Zheng, et al. Expires January 14, 2021 [Page 4]
Internet-Draft PM YANG for Client Signal July 2020
module: ietf-service-pm
+--rw performance-monitoring
+--rw service-pm* [service-name]
+--rw service-name union
+--rw task-pm-enable? boolean
+--rw granularity? identityref
+--rw performance-data-config* [parameter-name]
| +--rw parameter-name identityref
| +--rw measure-method? identityref
+--ro service-pm-state
+--ro oam-state
| +--ro cc-state enumeration
| +--ro lm-state? enumeration
| +--ro dm-state? enumeration
+--ro performance-data* [parameter-name]
| +--ro parameter-name identityref
| +--ro parameter-value* [index]
| +--ro index uint64
| +--ro value performance-parameter-value
| +--ro value-unit string
| +--ro value-description? string
| +--ro start-time? yang:date-and-time
| +--ro end-time? yang:date-and-time
+--ro monitor-state identityref
+--ro error-info
| +--ro error-code? uint32
| +--ro error-message? string
+--ro alarm
+--ro status? identityref
6.2. YANG Tree for OAM Configuration
Zheng, et al. Expires January 14, 2021 [Page 5]
Internet-Draft PM YANG for Client Signal July 2020
module: ietf-eth-service-oam
augment /svc-pm:performance-monitoring/svc-pm:service-pm:
+--rw oam-config
+--rw source
| +--rw md-name? string
| +--rw ma-name? string
| +--rw ma-level? string
| +--rw meg-id? string
| +--rw meg-level? string
| +--rw mep-id? uint8
| +--rw remote-mep-id? uint8
+--rw destination
| +--rw md-name? string
| +--rw ma-name? string
| +--rw ma-level? string
| +--rw meg-id? string
| +--rw meg-level? string
| +--rw mep-id? uint8
| +--rw remote-mep-id? uint8
+--rw cc-interval? identityref
+--rw lm-interval? identityref
+--rw dm-interval? identityref
7. YANG Code for Performance Monitoring
7.1. The Performance Monitoring YANG Code
<CODE BEGINS> file "ietf-service-pm@2020-07-13.yang"
module ietf-service-pm {
yang-version 1.1;
namespace "urn:ietf:params:xml:ns:yang:ietf-service-pm";
prefix "svc-pm";
import ietf-eth-tran-service {
prefix "ethtsvc";
}
import ietf-yang-types {
prefix "yang";
}
import ietf-trans-client-service {
prefix "clntsvc";
}
Zheng, et al. Expires January 14, 2021 [Page 6]
Internet-Draft PM YANG for Client Signal July 2020
organization
"Internet Engineering Task Force (IETF) CCAMP WG";
contact
"
WG List: <mailto:ccamp@ietf.org>
ID-draft editor:
Haomian Zheng (zhenghaomian@huawei.com);
Italo Busi (italo.busi@huawei.com);
Yanlei Zheng (zhengyanlei@chinaunicom.cn);
";
description
"This module defines the performance monitoring for Ethernet
services. The model fully conforms to the Network Management
Datastore Architecture (NMDA).
Copyright (c) 2020 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 2020-07-13 {
description
"Initial version";
reference
"ADD REFERENCE HERE";
}
typedef performance-parameter-value {
type union {
type uint32;
type uint64;
type decimal64 {
fraction-digits 6;
}
type string;
}
description
"A performance parameter value.";
}
grouping service-performance-monitor-set{
Zheng, et al. Expires January 14, 2021 [Page 7]
Internet-Draft PM YANG for Client Signal July 2020
description "the set of parameter name, value and description.";
leaf parameter-name{
type identityref {
base performance-parameter-type;
}
description
"The name of parameters to be monitored.
For example, latency, Bit Error Rate, Bandwidth and so on.";
}
list parameter-value {
key index;
description
"The table of values of the performance and
their descriptions.";
leaf index {
type uint64;
description
"Used for list index";
}
leaf value {
type performance-parameter-value;
mandatory true;
description
"The value of the parameter. ";
}
leaf value-unit {
type string;
mandatory true;
description
"The value unit of the parameter.
For example, second, minute and so on.";
}
leaf value-description{
type string;
description
"The description of previous value. ";
}
leaf start-time {
type yang:date-and-time;
description
"The time stamp when the parameter is started.";
}
leaf end-time {
type yang:date-and-time;
description
"The time stamp when the parameter is ended.";
}
}
Zheng, et al. Expires January 14, 2021 [Page 8]
Internet-Draft PM YANG for Client Signal July 2020
}
identity performance-parameter-type {
description
"Base type of the performance parameter being monitored.";
}
identity near-frame-loss {
base performance-parameter-type;
description
"Near frame loss, using one-way eth loss measure,
the sampling point is the MEP.";
}
identity far-frame-loss {
base performance-parameter-type;
description
"Far frame loss, using one-way eth loss measure,
the sampling point is the MEP.";
}
identity one-way-delay {
base performance-parameter-type;
description
"One way delay.";
}
identity two-way-delay {
base performance-parameter-type;
description
"Two way delay.";
}
identity receive-packets {
base performance-parameter-type;
description
"Total number of received packets.";
}
identity transmit-packets {
base performance-parameter-type;
description
"Total number of transmitted packets.";
}
identity alarm-status {
description "indicates whether there is alarm or not";
}
Zheng, et al. Expires January 14, 2021 [Page 9]
Internet-Draft PM YANG for Client Signal July 2020
identity alarm {
base alarm-status;
description "There is one or multiple alarms from the monitor. ";
}
identity no-alarm {
base alarm-status;
description "There is no alarms from the monitor. ";
}
identity monitoring-state {
description
"The state of performance monitoring. ";
}
identity monitoring {
base monitoring-state;
description "The Ethernet client signal is under monitoring. ";
}
identity monitor-finished {
base monitoring-state;
description
"The monitoring of Ethernet client signal is finished. ";
}
identity monitor-failed {
base monitoring-state;
description
"The monitoring of Ethernet client signal is failed. ";
}
identity granularity-type {
description
"Monitoring granularity";
}
identity granularity-1min {
base granularity-type;
description
"1 minute";
}
identity granularity-15min {
base granularity-type;
description
"15 minutes";
}
Zheng, et al. Expires January 14, 2021 [Page 10]
Internet-Draft PM YANG for Client Signal July 2020
identity granularity-24h {
base granularity-type;
description
"24 hours";
}
identity measure-method {
description "Measure method.";
}
identity measure-by-loopback {
base measure-method;
description "Loopback measure method.";
}
identity measure-at-ingress {
base measure-method;
description "Ingress measure method.";
}
container performance-monitoring {
description
"This part is for performance monitoring. ";
list service-pm {
key "service-name";
description
"The list of service to be monitored.";
leaf service-name {
mandatory true;
type union {
type leafref {
path "/ethtsvc:etht-svc/ethtsvc:etht-svc-instances"
+ "/ethtsvc:etht-svc-name";
}
type leafref {
path "/clntsvc:client-svc/clntsvc:client-svc-instances"
+ "/clntsvc:client-svc-name";
}
}
description "The name of service.";
}
leaf task-pm-enable {
type boolean;
description
"Indicate whether the performance monitoring
is enable or not.";
Zheng, et al. Expires January 14, 2021 [Page 11]
Internet-Draft PM YANG for Client Signal July 2020
}
leaf granularity {
type identityref {
base granularity-type;
}
description
"Monitoring granularity";
}
list performance-data-config {
key parameter-name;
description
"Specify the performance parameters to be queried";
leaf parameter-name {
type identityref {
base performance-parameter-type;
}
description
"The name of parameters to be monitored.
For example, latency, BER, Bandwidth and so on.";
}
leaf measure-method {
type identityref {
base measure-method;
}
}
}
container service-pm-state {
config false;
description
"The state of service performance monitoring.";
container oam-state {
leaf cc-state {
mandatory true;
type enumeration {
enum up;
enum down;
}
}
leaf lm-state {
type enumeration {
enum up;
enum down;
}
Zheng, et al. Expires January 14, 2021 [Page 12]
Internet-Draft PM YANG for Client Signal July 2020
}
leaf dm-state {
type enumeration {
enum up;
enum down;
}
}
}
list performance-data{
key parameter-name;
description "The list of performance under monitor.";
uses service-performance-monitor-set;
}
leaf monitor-state {
mandatory true;
type identityref {
base monitoring-state;
}
description "The status of performance monitoring. ";
}
container error-info {
description
"Describe the error message.";
leaf error-code {
type uint32;
description
"The code of error.";
}
leaf error-message {
type string;
description
"The message of error.";
}
}
container alarm {
description
"To retrieve the Alarm during performance Monitoring.";
leaf status {
type identityref {
base alarm-status;
}
description "The status of the alarm. ";
}
}
Zheng, et al. Expires January 14, 2021 [Page 13]
Internet-Draft PM YANG for Client Signal July 2020
}
}
}
}
<CODE ENDS>
7.2. The OAM Configuration YANG Code
<CODE BEGINS> file "ietf-eth-service-oam@2020-07-13.yang"
module ietf-eth-service-oam {
yang-version 1.1;
namespace "urn:ietf:params:xml:ns:yang:ietf-eth-service-oam";
prefix "etht-oam";
import ietf-eth-tran-service {
prefix "ethtsvc";
}
import ietf-service-pm {
prefix "svc-pm";
}
import ietf-trans-client-service {
prefix "clntsvc";
}
import ietf-network {
prefix nw;
}
organization
"Internet Engineering Task Force (IETF) CCAMP WG";
contact
"
WG List: <mailto:ccamp@ietf.org>
ID-draft editor:
Haomian Zheng (zhenghaomian@huawei.com);
Italo Busi (italo.busi@huawei.com);
Yanlei Zheng (zhengyanlei@chinaunicom.cn);
";
description
"This module defines the performance monitoring for Ethernet
Zheng, et al. Expires January 14, 2021 [Page 14]
Internet-Draft PM YANG for Client Signal July 2020
services OAM. The model fully conforms to the Network Management
Datastore Architecture (NMDA).
Copyright (c) 2020 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 2020-07-13 {
description
"Initial version";
reference
"ADD REFERENCE HERE";
}
identity interval-type {
description "Time interval";
}
identity interval-3p33ms {
base interval-type;
description "3.33 milliseconds";
}
identity interval-10ms {
base interval-type;
description "10 milliseconds";
}
identity interval-100ms {
base interval-type;
description "100 milliseconds";
}
identity interval-1s {
base interval-type;
description "1 second";
}
identity interval-10s {
base interval-type;
description "10 seconds";
Zheng, et al. Expires January 14, 2021 [Page 15]
Internet-Draft PM YANG for Client Signal July 2020
}
identity interval-1m {
base interval-type;
description "1 minute";
}
identity interval-10m {
base interval-type;
description "10 minutes";
}
grouping eth-service-oam-config {
container source {
uses mep-config;
}
container destination {
uses mep-config;
}
uses interval-config;
}
grouping interval-config {
leaf cc-interval {
description "Continuity check interval";
type identityref {
base interval-type;
}
}
leaf lm-interval {
description "Loss measurement interval";
type identityref {
base interval-type;
}
}
leaf dm-interval {
description "Delay measurement interval";
type identityref {
base interval-type;
}
}
}
grouping mep-config {
leaf md-name {
Zheng, et al. Expires January 14, 2021 [Page 16]
Internet-Draft PM YANG for Client Signal July 2020
type string;
description
"maintenance domain";
}
leaf ma-name {
type string;
description
"An maintenance association(MA) is a part of an MD.
An MD can be divided into one or more MAs. ";
}
leaf ma-level {
type string;
}
leaf meg-id {
type string;
description
"Comply with Y.1731 term, mapping with 802.lag MA name.";
}
leaf meg-level {
type string;
description "Mapping with 802.lag MA level.";
}
leaf mep-id {
type uint8;
description "0 if Abnormal";
}
leaf remote-mep-id {
type uint8;
description "The remote MEP ID must be specified.";
}
}
augment "/svc-pm:performance-monitoring/svc-pm:service-pm" {
description
"Augment with additional parameters required for Ethernet OAM";
container oam-config {
uses eth-service-oam-config;
}
}
grouping errors {
leaf error-code {
Zheng, et al. Expires January 14, 2021 [Page 17]
Internet-Draft PM YANG for Client Signal July 2020
type uint32;
}
leaf error-message {
type string;
}
}
<CODE ENDS>
8. IANA Considerations
It is proposed that IANA should assign new URIs from the "IETF XML
Registry" [RFC3688] as follows:
URI: urn:ietf:params:xml:ns:yang:ietf-service-pm
Registrant Contact: The IESG
XML: N/A; the requested URI is an XML namespace.
URI: urn:ietf:params:xml:ns:yang:ietf-eth-service-oam
Registrant Contact: The IESG
XML: N/A; the requested URI is an XML namespace.
This document registers following YANG modules in the YANG Module
Names registry [RFC7950].
name: ietf-service-pm
namespace: urn:ietf:params:xml:ns:yang:ietf-service-pm
prefix: svc-pm
reference: RFC XXXX (This document)
name: ietf-eth-service-oam
namespace: urn:ietf:params:xml:ns:yang:ietf-eth-service-oam
prefix: eth-oam
reference: RFC XXXX (This document)
Zheng, et al. Expires January 14, 2021 [Page 18]
Internet-Draft PM YANG for Client Signal July 2020
9. Manageability Considerations
TBD.
10. Security Considerations
The data following the model defined in this document is exchanged
via, for example, the interface between an orchestrator and a
transport network controller. The security concerns mentioned in
[I-D.ietf-ccamp-client-signal-yang] also applies to this document.
The YANG module defined in this document can be accessed via the
RESTCONF protocol defined in [RFC8040], or maybe via the NETCONF
protocol [RFC6241].
11. Contributors
Chaode YU
Huawei Technologies,
Email: yuchaode@huawei.com
12. References
12.1. Normative References
[I-D.ietf-ccamp-client-signal-yang]
Zheng, H., Guo, A., Busi, I., Snitser, A., Lazzeri, F.,
Xu, Y., Zhao, Y., Liu, X., and G. Fioccola, "A YANG Data
Model for Transport Network Client Signals", draft-ietf-
ccamp-client-signal-yang-02 (work in progress), May 2020.
[I-D.ietf-ccamp-layer1-types]
Zheng, H. and I. Busi, "A YANG Data Model for Layer 1
Types", draft-ietf-ccamp-layer1-types-06 (work in
progress), May 2020.
[I-D.ietf-teas-actn-pm-telemetry-autonomics]
Lee, Y., Dhody, D., Karunanithi, S., Vilata, R., King, D.,
and D. Ceccarelli, "YANG models for VN/TE Performance
Monitoring Telemetry and Scaling Intent Autonomics",
draft-ietf-teas-actn-pm-telemetry-autonomics-02 (work in
progress), March 2020.
[I-D.www-bess-yang-vpn-service-pm]
WU, Q., Boucadair, M., Dios, O., Wen, B., Liu, C., and H.
Xu, "A YANG Model for Network and VPN Service Performance
Monitoring", draft-www-bess-yang-vpn-service-pm-06 (work
in progress), April 2020.
Zheng, et al. Expires January 14, 2021 [Page 19]
Internet-Draft PM YANG for Client Signal July 2020
[RFC3688] Mealling, M., "The IETF XML Registry", BCP 81, RFC 3688,
DOI 10.17487/RFC3688, January 2004,
<https://www.rfc-editor.org/info/rfc3688>.
[RFC6241] Enns, R., Ed., Bjorklund, M., Ed., Schoenwaelder, J., Ed.,
and A. Bierman, Ed., "Network Configuration Protocol
(NETCONF)", RFC 6241, DOI 10.17487/RFC6241, June 2011,
<https://www.rfc-editor.org/info/rfc6241>.
[RFC7950] Bjorklund, M., Ed., "The YANG 1.1 Data Modeling Language",
RFC 7950, DOI 10.17487/RFC7950, August 2016,
<https://www.rfc-editor.org/info/rfc7950>.
[RFC8040] Bierman, A., Bjorklund, M., and K. Watsen, "RESTCONF
Protocol", RFC 8040, DOI 10.17487/RFC8040, January 2017,
<https://www.rfc-editor.org/info/rfc8040>.
[RFC8531] Kumar, D., Wu, Q., and Z. Wang, "Generic YANG Data Model
for Connection-Oriented Operations, Administration, and
Maintenance (OAM) Protocols", RFC 8531,
DOI 10.17487/RFC8531, April 2019,
<https://www.rfc-editor.org/info/rfc8531>.
12.2. Informative References
[I-D.ietf-ccamp-otn-tunnel-model]
Zheng, H., Busi, I., Belotti, S., Lopezalvarez, V., and Y.
Xu, "OTN Tunnel YANG Model", draft-ietf-ccamp-otn-tunnel-
model-10 (work in progress), March 2020.
[I-D.ietf-ccamp-wson-tunnel-model]
Lee, Y., Zheng, H., Guo, A., Lopezalvarez, V., King, D.,
Yoon, B., and R. Vilata, "A Yang Data Model for WSON
Tunnel", draft-ietf-ccamp-wson-tunnel-model-05 (work in
progress), March 2020.
[RFC8340] Bjorklund, M. and L. Berger, Ed., "YANG Tree Diagrams",
BCP 215, RFC 8340, DOI 10.17487/RFC8340, March 2018,
<https://www.rfc-editor.org/info/rfc8340>.
Authors' Addresses
Zheng, et al. Expires January 14, 2021 [Page 20]
Internet-Draft PM YANG for Client Signal July 2020
Haomian Zheng
Huawei Technologies
H1, Xiliu Beipo Village, Songshan Lake,
Dongguan, Guangdong 523808
China
Email: zhenghaomian@huawei.com
Italo Busi
Huawei Technologies
Italy
Email: Italo.Busi@huawei.com
Yanlei Zheng
China Unicom
China
Email: zhengyanlei@chinaunicom.cn
Zheng, et al. Expires January 14, 2021 [Page 21]