A YANG Data Model for Microwave Topology
draft-ietf-ccamp-mw-topo-yang-08
| Document | Type | Active Internet-Draft (ccamp WG) | |
|---|---|---|---|
| Authors | Scott Mansfield , Jonas Ahlberg , Min Ye , Xi Li , Daniela Spreafico | ||
| Last updated | 2023-12-06 | ||
| Replaces | draft-ye-ccamp-mw-topo-yang | ||
| RFC stream | Internet Engineering Task Force (IETF) | ||
| Intended RFC status | Proposed Standard | ||
| Formats | |||
| Yang Validation | 0 errors, 0 warnings | ||
| Reviews | |||
| Additional resources |
Yang catalog entry for ietf-microwave-topology@2019-02-27.yang
Yang impact analysis for draft-ietf-ccamp-mw-topo-yang Mailing list discussion |
||
| Stream | WG state | Submitted to IESG for Publication | |
| Associated WG milestone |
|
||
| Document shepherd | Daniele Ceccarelli | ||
| Shepherd write-up | Show Last changed 2023-12-06 | ||
| IESG | IESG state | Publication Requested | |
| Action Holders |
(None)
|
||
| Consensus boilerplate | Yes | ||
| Telechat date | (None) | ||
| Responsible AD | John Scudder | ||
| Send notices to | daniele.ietf@gmail.com |
draft-ietf-ccamp-mw-topo-yang-08
CCAMP Working Group S. Mansfield, Ed.
Internet-Draft Ericsson Inc
Intended status: Standards Track J. Ahlberg
Expires: 8 June 2024 Ericsson AB
M. Ye
Huawei Technologies
X. Li
NEC Laboratories Europe
D. Spreafico
Nokia - IT
6 December 2023
A YANG Data Model for Microwave Topology
draft-ietf-ccamp-mw-topo-yang-08
Abstract
This document defines a YANG data model to describe microwave/
millimeter radio links in a network topology.
About This Document
This note is to be removed before publishing as an RFC.
The latest revision of this draft can be found at https://github.com/
ietf-ccamp-wg/draft-ietf-ccamp-mw-topo-yang. Status information for
this document may be found at https://datatracker.ietf.org/doc/draft-
ietf-ccamp-mw-topo-yang/.
Discussion of this document takes place on the CCAMP Working Group
mailing list (mailto:ccamp@ietf.org), which is archived at
https://datatracker.ietf.org/wg/ccamp/about/. Subscribe at
https://www.ietf.org/mailman/listinfo/ccamp/.
Source for this draft and an issue tracker can be found at
https://github.com/https://github.com/ietf-ccamp-wg/draft-ietf-ccamp-
mw-topo-yang.
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/.
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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 8 June 2024.
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 . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. Terminology and Definitions . . . . . . . . . . . . . . . 4
1.2. Tree Structure . . . . . . . . . . . . . . . . . . . . . 4
2. Requirements Language . . . . . . . . . . . . . . . . . . . . 4
3. Microwave Topology YANG Data Model . . . . . . . . . . . . . 4
3.1. YANG Tree . . . . . . . . . . . . . . . . . . . . . . . . 4
3.2. Relationship between radio links and carriers . . . . . . 5
3.3. Relationship with client topology model . . . . . . . . . 6
3.4. Applicability of the Data Model for Traffic Engineering
(TE) Topologies . . . . . . . . . . . . . . . . . . . . . 6
3.5. Microwave Topology YANG Module . . . . . . . . . . . . . 6
4. Security Considerations . . . . . . . . . . . . . . . . . . . 13
5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 14
6. References . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.1. Normative References . . . . . . . . . . . . . . . . . . 14
6.2. Informative References . . . . . . . . . . . . . . . . . 15
Appendix A. Microwave Topology Model with base topology
models . . . . . . . . . . . . . . . . . . . . . . . . . 16
A.1. Instance data for 2+0 mode for a bonded configuration . . 19
A.2. Instance data for 1+1 mode for a protected
configuration . . . . . . . . . . . . . . . . . . . . . . 25
Appendix B. Microwave Topology Model with example extensions . . 31
B.1. Instance data for 2+0 mode . . . . . . . . . . . . . . . 35
B.2. Instance data for geolocation information . . . . . . . . 44
Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . 44
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Contributors . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 44
1. Introduction
This document defines a YANG data model to describe topologies of
microwave/millimeter wave (hereafter microwave is used to simplify
the text). The YANG data model describes radio links, supporting
carrier(s) and the associated termination points [RFC8561]. A
carrier is a description of a link providing transport capacity over
the air by a single carrier. It is typically defined by its
transmitting and receiving frequencies. A radio link is a link
providing the aggregated transport capacity of the supporting
carriers in aggregated and/or protected configurations, which can be
used to carry traffic on higher topology layers such as Ethernet and
TDM. The model augments "YANG Data Model for Traffic Engineering
(TE) Topologies" defined in [RFC8795], which is based on "A YANG Data
Model for Network Topologies" defined in [RFC8345].
The microwave point-to-point radio technology provides connectivity
on L0/L1 over a radio link between two termination points, using one
or several supporting carriers in aggregated or protected
configurations. That application of microwave technology cannot be
used to perform cross-connection or switching of the traffic to
create network connectivity across multiple microwave radio links.
Instead, a payload of traffic on higher topology layers, normally L2
Ethernet, is carried over the microwave radio link and when the
microwave radio link is terminated at the endpoints, cross-connection
and switching can be performed on that higher layer creating
connectivity across multiple supporting microwave radio links.
The microwave topology model is expected to be used between a
Provisioning Network Controller (PNC) and a Multi Domain Service
Coordinator(MDSC) [RFC8453]. Examples of use cases that can be
supported are:
1. Correlation between microwave radio links and the supported links
on higher topology layers. e.g. an L2 Ethernet topology. This
information can be used to understand how changes in the
performance/status of a microwave radio link affect traffic on
higher layers.
2. Propagation of relevant characteristics of a microwave radio
link, such as bandwidth, to higher topology layers, where it e.g.
could be used as a criterion when configuring and optimizing a
path for a connection/service through the network end to end.
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3. Optimization of the microwave radio link configurations on a
network level, e.g. with the purpose to minimize overall
interference and/or maximize the overall capacity provided by the
links.
1.1. Terminology and Definitions
The following acronyms are used in this document:
CTP Carrier Termination Point
RLT Radio Link Terminal
RLTP Radio Link Termination Point
SNIR Signal Noise Interference Ratio
MDSC Multi Domain Service Coordinator
PNC Provisioning Network Controller
1.2. Tree Structure
A simplified graphical representation of the data model is used in
chapter 3.1 of this document. The meaning of the symbols in these
diagrams is defined in [RFC8340].
2. Requirements Language
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
"OPTIONAL" in this document are to be interpreted as described in BCP
14 [RFC2119] [RFC8174] when, and only when, they appear in all
capitals, as shown here.
3. Microwave Topology YANG Data Model
3.1. YANG Tree
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module: ietf-microwave-topology
augment /nw:networks/nw:network/nw:network-types/tet:te-topology:
+--rw mw-topology!
augment
/nw:networks/nw:network/nw:node/tet:te/tet:te-node-attributes:
+--rw mw-node!
augment
/nw:networks/nw:network/nw:node/nt:termination-point/tet:te:
+--rw mw-tp!
+--rw (mw-tp-option)?
+--:(microwave-rltp)
| +--rw microwave-rltp!
+--:(microwave-ctp)
+--rw microwave-ctp!
augment
/nw:networks/nw:network/nt:link/tet:te/tet:te-link-attributes:
+--rw mw-link!
+--rw (mw-link-option)?
+--:(microwave-radio-link)
| +--rw microwave-radio-link!
| +--rw rlt-mode
| +--rw num-bonded-carriers uint32
| +--rw num-protecting-carriers uint32
+--:(microwave-carrier)
+--rw microwave-carrier!
+--rw tx-frequency? uint32
+--rw rx-frequency? uint32
+--rw channel-separation? uint32
+--ro actual-tx-cm? identityref
+--ro actual-snir? decimal64
+--ro actual-transmitted-level? decimal64
augment
/nw:networks/nw:network/nt:link/tet:te/tet:te-link-attributes/
tet:max-link-bandwidth/tet:te-bandwidth:
+--ro mw-bandwidth? uint64
3.2. Relationship between radio links and carriers
A microwave radio link is always an aggregate of one or multiple
carriers, in various configurations/modes. The supporting carriers
are identified by their termination points and are listed in the
container bundled-links as part of the te-link-config in the YANG
Data Model for Traffic Engineering (TE) Topologies [RFC8795] for a
radio-link. The exact configuration of the included carriers is
further specified in the rlt-mode container (1+0, 2+0, 1+1, etc.) for
the radio-link. Appendix A includes JSON examples of how such a
relationship can be modelled.
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3.3. Relationship with client topology model
A microwave radio link carries a payload of traffic on higher
topology layers, normally L2 Ethernet. The leafs supporting-network,
supporting-node, supporting-link, and supporting-termination-point in
the generic YANG module for Network Topologies [RFC8345] are expected
to be used to model a relationship/dependency from higher topology
layers to a supporting microwave radio link topology layer.
Appendix A includes JSON examples of an L2 Ethernet link transported
over one supporting microwave link.
3.4. Applicability of the Data Model for Traffic Engineering (TE)
Topologies
Since microwave is a point-to-point radio technology providing
connectivity on L0/L1 over a radio link between two termination
points and cannot be used to perform cross-connection or switching of
the traffic to create network connectivity across multiple microwave
radio links, a majority of the leafs in the Data Model for Traffic
Engineering (TE) Topologies augmented by the microwave topology model
are not applicable. An example of which leafs are considered
applicable can be found in appendices Appendix A and Appendix B in
this document.
More specifically, admin-status and oper-status are recommended to be
reported for links only. Status for termination points can be used
when links are inter-domain and when the status of only one side of
link is known, but since microwave is a point-to-point technology
where both ends normally belong to the same domain it is not expected
to be applicable in normal cases. Furthermore, admin-status is not
applicable for microwave radio links. Enable and disable of a radio
link is instead done in the constituent carriers.
3.5. Microwave Topology YANG Module
<CODE BEGINS> file "ietf-microwave-topology.yang"
module ietf-microwave-topology {
yang-version "1.1";
namespace
"urn:ietf:params:xml:ns:yang:ietf-microwave-topology";
prefix "mwtopo";
import ietf-network {
prefix "nw";
reference "RFC 8345: A YANG Data Model for Network Topologies";
}
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import ietf-network-topology {
prefix "nt";
reference "RFC 8345: A YANG Data Model for Network Topologies";
}
import ietf-te-topology {
prefix "tet";
reference "RFC 8795: YANG Data Model for Traffic Engineering
(TE) Topologies";
}
import ietf-microwave-types {
prefix mw-types;
reference "RFC 8561";
}
organization
"Internet Engineering Task Force (IETF) CCAMP WG";
contact
"WG Web: <https://datatracker.ietf.org/wg/ccamp/>
WG List: <mailto:ccamp@ietf.org>
Editor: Jonas Ahlberg
<mailto:jonas.ahlberg@ericsson.com>
Editor: Scott Mansfield
<mailto:scott.mansfield@ericsson.com>
Editor: Min Ye
<mailto:amy.yemin@huawei.com>
Editor: Italo Busi
<mailto:Italo.Busi@huawei.com>
Editor: Xi Li
<mailto:Xi.Li@neclab.eu>
Editor: Daniela Spreafico
<mailto:daniela.spreafico@nokia.com>
";
description
"This is a module for microwave topology.
Copyright (c) 2023 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 Revised 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).
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This version of this YANG module is part of RFC XXXX; see
the RFC itself for full legal notices.";
revision 2023-10-19 {
description
"last call comment resolutions.";
reference "";
}
revision 2023-07-20 {
description
"Multi-layer fix, and a few editorials";
reference "";
}
revision 2023-02-15 {
description
"Draft to be used as a basis for the continued microwave
team discussions";
reference "";
}
grouping rlt-mode {
description
"This grouping provides a flexible definition of number
of bonded carriers and protecting carriers of a radio
link.";
leaf num-bonded-carriers {
type uint32;
mandatory true;
description
"Number of bonded carriers.";
}
leaf num-protecting-carriers {
type uint32;
mandatory true;
description
"Number of protecting carriers.";
}
}
grouping microwave-radio-link-attributes {
description "Grouping used for attributes describing a microwave
radio link.";
container rlt-mode {
description
"This grouping provides a flexible definition of number
of bonded carriers and protecting carriers of a radio
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link.";
uses rlt-mode;
}
}
grouping microwave-carrier-attributes {
description "Grouping used for attributes describing a microwave
carrier.";
leaf tx-frequency {
type uint32;
units "kHz";
description
"Selected transmitter frequency.
Related to the data node tx-frequency in RFC 8561.";
reference
"RFC 8561: A YANG Data Model for Microwave Radio Link";
}
leaf rx-frequency {
type uint32;
units "kHz";
description
"Selected receiver frequency.
Related to the data node actual-rx-frequency in RFC 8561.";
reference
"RFC 8561: A YANG Data Model for Microwave Radio Link";
}
leaf channel-separation {
type uint32;
units "kHz";
description
"The amount of bandwidth allocated to a carrier. The
distance between adjacent channels in a radio
frequency channels arrangement.
Related to the data node channel-separation in RFC 8561.";
reference
"ETSI EN 302 217-1 and
RFC 8561: A YANG Data Model for Microwave Radio Link";
}
leaf actual-tx-cm {
type identityref {
base mw-types:coding-modulation;
}
config false;
description
"Actual coding/modulation in transmitting direction.
Related to the data node actual-tx-cm in RFC 8561.";
reference
"RFC 8561: A YANG Data Model for Microwave Radio Link";
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}
leaf actual-snir {
type decimal64 {
fraction-digits 1;
}
units "dB";
config false;
description
"Actual signal to noise plus the interference ratio
(0.1 dB resolution).
Related to the data node actual-snir in RFC 8561.";
reference
"RFC 8561: A YANG Data Model for Microwave Radio Link";
}
leaf actual-transmitted-level {
type decimal64 {
fraction-digits 1;
}
units "dBm";
config false;
description
"Actual transmitted power level (0.1 dBm resolution).
Related to the data node actual-transmitted-level
in RFC 8561.";
reference
"ETSI EN 301 129 and
RFC 8561: A YANG Data Model for Microwave Radio Link";
}
}
grouping microwave-bandwidth {
description "Grouping used for microwave bandwidth.";
leaf mw-bandwidth {
type uint64;
units "bits/seconds";
config false;
description
"Nominal microwave radio link and carrier bandwidth.";
}
}
augment "/nw:networks/nw:network/nw:network-types/"
+ "tet:te-topology" {
description
"Augment network types to define a microwave network
topology type.";
container mw-topology {
presence "Indicates a topology type of microwave.";
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description "Microwave topology type";
}
}
augment "/nw:networks/nw:network/nw:node/tet:te"
+ "/tet:te-node-attributes" {
when "/nw:networks/nw:network/nw:network-types"
+ "/tet:te-topology/mwtopo:mw-topology" {
description
"Augmentation parameters apply only for networks with a
microwave network topology type.";
}
description
"Augment network node to indicate a microwave node.";
container mw-node {
presence "Indicates a microwave node.";
description "Microwave node";
}
}
augment "/nw:networks/nw:network/nw:node/nt:termination-point/"
+ "tet:te" {
when '../../../nw:network-types/tet:te-topology/'
+ 'mwtopo:mw-topology' {
description
"Augmentation parameters apply only for networks with a
microwave network topology type.";
}
description
"Augmentation to add microwave technology specific
characteristics to a termination point.";
container mw-tp {
presence
"Denotes a microwave termination point.";
description "Specification of type of termination point.";
choice mw-tp-option {
description "Selection of type of termination point.";
case microwave-rltp {
container "microwave-rltp" {
presence
"Denotes a microwave radio link termination point.
It corresponds to a microwave RLT interface as
defined in RFC 8561.";
description
"Denotes and describes a microwave radio link
termination point.";
}
}
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case microwave-ctp {
container "microwave-ctp" {
presence
"Denotes a microwave carrier termination point.
It corresponds to a microwave CT interface as
defined in RFC 8561.";
description
"Denotes and describes a microwave carrier
termination point.";
}
}
}
}
}
augment "/nw:networks/nw:network/nt:link/tet:te/"
+ "tet:te-link-attributes" {
when '../../../nw:network-types/tet:te-topology/'
+ 'mwtopo:mw-topology' {
description
"Augmentation parameters apply only for networks with a
microwave network topology type.";
}
description
"Augmentation to add microwave technology specific
characteristics to a link.";
container mw-link {
presence "This indicates a microwave link";
description "Specification of type of link.";
choice mw-link-option {
mandatory true;
description "Selection of type of link.";
case microwave-radio-link {
container "microwave-radio-link" {
presence
"Denotes a microwave radio link";
uses microwave-radio-link-attributes;
description
"Denotes and describes a microwave radio link";
}
}
case microwave-carrier {
container "microwave-carrier" {
presence "Denotes a microwave carrier";
uses microwave-carrier-attributes;
description "Denotes and describes a microwave carrier";
}
}
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}
}
}
augment "/nw:networks/nw:network/nt:link/tet:te/"
+ "tet:te-link-attributes/"
+ "tet:max-link-bandwidth/"
+ "tet:te-bandwidth" {
when '../../../../../nw:network-types/tet:te-topology/'
+ 'mwtopo:mw-topology' {
description
"Augmentation parameters apply only for networks with a
microwave network topology type.";
}
description
"Augmentation for TE bandwidth.";
uses microwave-bandwidth;
}
}
<CODE ENDS>
4. Security Considerations
The YANG module specified in this document defines schemas for data
that is designed to be accessed via network management protocols such
as NETCONF [RFC6241] or RESTCONF [RFC8040]. The lowest NETCONF layer
is the secure transport layer, and the mandatory-to-implement secure
transport is Secure Shell (SSH) [RFC6242]. The lowest RESTCONF layer
is HTTPS, and the mandatory-to-implement secure transport is TLS
[RFC8446].
The NETCONF access control model [RFC8341] provides the means to
restrict access for particular NETCONF or RESTCONF users to a
preconfigured subset of all available NETCONF or RESTCONF protocol
operations and content.
The YANG module specified in this document imports and augments the
ietf-network and ietf-network-topology models defined in [RFC8345].
The security considerations from [RFC8345] are applicable to the
module in this document.
There are a several 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:
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* rlt-mode: A malicious client could attempt to modify the mode in
which the radio link is configured and thereby change the intended
behaviour of the link.
* tx-frequency, rx-frequency and channel-separation: A malicious
client could attempt to modify the frequency configuration of a
carrier which could modify the intended behaviour or make the
configurtion invalid and thereby stop the operation of it.
5. IANA Considerations
IANA is asked to assign a new URI from the "IETF XML Registry"
[RFC3688] as follows:
URI: urn:ietf:params:xml:ns:yang:ietf-microwave-topology
Registrant Contact: The IESG
XML: N/A; the requested URI is an XML namespace.
It is proposed that IANA should record YANG module names in the "YANG
Module Names" registry [RFC6020] as follows:
Name: ietf-microwave-topology
Maintained by IANA?: N
Namespace: urn:ietf:params:xml:ns:yang:ietf-microwave-topology
Prefix: mwtopo
Reference: RFC XXXX
6. References
6.1. Normative References
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119,
DOI 10.17487/RFC2119, March 1997,
<https://www.rfc-editor.org/rfc/rfc2119>.
[RFC3688] Mealling, M., "The IETF XML Registry", BCP 81, RFC 3688,
DOI 10.17487/RFC3688, January 2004,
<https://www.rfc-editor.org/rfc/rfc3688>.
[RFC6020] Bjorklund, M., Ed., "YANG - A Data Modeling Language for
the Network Configuration Protocol (NETCONF)", RFC 6020,
DOI 10.17487/RFC6020, October 2010,
<https://www.rfc-editor.org/rfc/rfc6020>.
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[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/rfc/rfc6241>.
[RFC6242] Wasserman, M., "Using the NETCONF Protocol over Secure
Shell (SSH)", RFC 6242, DOI 10.17487/RFC6242, June 2011,
<https://www.rfc-editor.org/rfc/rfc6242>.
[RFC8040] Bierman, A., Bjorklund, M., and K. Watsen, "RESTCONF
Protocol", RFC 8040, DOI 10.17487/RFC8040, January 2017,
<https://www.rfc-editor.org/rfc/rfc8040>.
[RFC8174] Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC
2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174,
May 2017, <https://www.rfc-editor.org/rfc/rfc8174>.
[RFC8341] Bierman, A. and M. Bjorklund, "Network Configuration
Access Control Model", STD 91, RFC 8341,
DOI 10.17487/RFC8341, March 2018,
<https://www.rfc-editor.org/rfc/rfc8341>.
[RFC8345] Clemm, A., Medved, J., Varga, R., Bahadur, N.,
Ananthakrishnan, H., and X. Liu, "A YANG Data Model for
Network Topologies", RFC 8345, DOI 10.17487/RFC8345, March
2018, <https://www.rfc-editor.org/rfc/rfc8345>.
[RFC8446] Rescorla, E., "The Transport Layer Security (TLS) Protocol
Version 1.3", RFC 8446, DOI 10.17487/RFC8446, August 2018,
<https://www.rfc-editor.org/rfc/rfc8446>.
[RFC8561] Ahlberg, J., Ye, M., Li, X., Spreafico, D., and M.
Vaupotic, "A YANG Data Model for Microwave Radio Link",
RFC 8561, DOI 10.17487/RFC8561, June 2019,
<https://www.rfc-editor.org/rfc/rfc8561>.
[RFC8795] Liu, X., Bryskin, I., Beeram, V., Saad, T., Shah, H., and
O. Gonzalez de Dios, "YANG Data Model for Traffic
Engineering (TE) Topologies", RFC 8795,
DOI 10.17487/RFC8795, August 2020,
<https://www.rfc-editor.org/rfc/rfc8795>.
6.2. Informative References
[EN301129] ETSI, "Transmission and Multiplexing (TM); Digital Radio
Relay Systems (DRRS); Synchronous Digital Hierarchy (SDH);
System performance monitoring parameters of SDH DRRS", EN
301 129 V1.1.2 , May 1999.
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[EN302217-1]
ETSI, "Fixed Radio Systems; Characteristics and
requirements for point-to-point equipment and antennas;
Part 1: Overview, common characteristics and system-
dependent requirements", EN 302 217-1 V3.1.0 , May 2017.
[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/rfc/rfc8340>.
[RFC8453] Ceccarelli, D., Ed. and Y. Lee, Ed., "Framework for
Abstraction and Control of TE Networks (ACTN)", RFC 8453,
DOI 10.17487/RFC8453, August 2018,
<https://www.rfc-editor.org/rfc/rfc8453>.
[RFC8792] Watsen, K., Auerswald, E., Farrel, A., and Q. Wu,
"Handling Long Lines in Content of Internet-Drafts and
RFCs", RFC 8792, DOI 10.17487/RFC8792, June 2020,
<https://www.rfc-editor.org/rfc/rfc8792>.
[RFC8944] Dong, J., Wei, X., Wu, Q., Boucadair, M., and A. Liu, "A
YANG Data Model for Layer 2 Network Topologies", RFC 8944,
DOI 10.17487/RFC8944, November 2020,
<https://www.rfc-editor.org/rfc/rfc8944>.
Appendix A. Microwave Topology Model with base topology models
This appendix provides some examples and illustrations of how the
Microwave Topology Model can be used. The tree illustrates an
example of a complete Microwave Topology Model including the relevant
data nodes from network-topology and te-topology (base topology
models). There are also JSON based instantiations of the Microwave
Topology Model for a couple of small network examples.
The tree below shows an example of the relevant leafs for a complete
Microwave Topology Model including the augmented Network Topology
Model defined in [RFC8345] and the Traffic Engineering (TE)
Topologies model defined in [RFC8795].
module: ietf-network
+--rw networks
+--rw network* [network-id]
| +--rw network-id network-id
| +--rw network-types
| | +--rw tet:te-topology!
| | | +--rw mwtopo:mw-topology!
| +--rw supporting-network* [network-ref]
| | +--rw network-ref -> /networks/network/network-id
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| +--rw node* [node-id]
| | +--rw node-id node-id
| | +--rw supporting-node* [network-ref node-ref]
| | | +--rw network-ref -> ../../../supporting-network/
network-ref
| | | +--rw node-ref -> /networks/network/node/node-id
| | +--rw nt:termination-point* [tp-id]
| | | +--rw nt:tp-id tp-id
| | | +--rw nt:supporting-termination-point* [network-ref
node-ref tp-ref]
| | | | +--rw nt:network-ref -> ../../../nw:supporting-node/
network-ref
| | | | +--rw nt:node-ref -> ../../../nw:supporting-node/
node-ref
| | | | +--rw nt:tp-ref -> /nw:networks/
network[nw:network-id=current()/../network-ref]/
node[nw:node-id=current()/../node-ref]/termination-point/tp-id
| | | +--rw tet:te-tp-id? te-types:te-tp-id
| | | +--rw tet:te!
| | | | +--rw tet:name? string
| | | | +--ro tet:geolocation
| | | | | +--ro tet:altitude? int64
| | | | | +--ro tet:latitude? geographic-coordinate-degree
| | | | | +--ro tet:longitude? geographic-coordinate-degree
| | | | +--rw mwtopo:mw-tp
| | | | | +--rw (mwtopo:mw-tp-option)?
| | | | | +--:(mwtopo:microwave-rltp)
| | | | | | +--rw mwtopo:microwave-rltp!
| | | | | +--:(mwtopo:microwave-ctp)
| | | | | +--rw mwtopo:microwave-ctp!
| | +--rw tet:te-node-id? te-types:te-node-id
| +--rw nt:link* [link-id]
| | +--rw nt:link-id link-id
| | +--rw nt:source
| | | +--rw nt:source-node? -> ../../../nw:node/node-id
| | | +--rw nt:source-tp? -> ../../../nw:node
[nw:node-id=current()/../source-node]/termination-point/tp-id
| | +--rw nt:destination
| | | +--rw nt:dest-node? -> ../../../nw:node/node-id
| | | +--rw nt:dest-tp? -> ../../../nw:node
[nw:node-id=current()/../dest-node]/termination-point/tp-id
| | +--rw tet:te!
| | | +--rw (tet:bundle-stack-level)?
| | | | +--:(tet:bundle)
| | | | | +--rw tet:bundled-links
| | | | | +--rw tet:bundled-link* [sequence]
| | | | | +--rw tet:sequence uint32
| | | | | +--rw tet:src-tp-ref? -> ../../../../../
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nw:node[nw:node-id = current()/../../../../nt:source/source-node]/
termination-point/tp-id
| | | | | +--rw tet:des-tp-ref? -> ../../../../../
nw:node[nw:node-id = current()/../../../../nt:destination/dest-node]/
termination-point/tp-id
| | | +--rw tet:te-link-attributes
| | | | +--rw tet:name? string
| | | | +--rw tet:max-link-bandwidth
| | | | | +--rw tet:te-bandwidth
| | | | | +--ro mwtopo:mw-bandwidth? uint64
| | | | +--rw mwtopo:mw-link!
| | | | +--rw (mwtopo:mw-link-option)?
| | | | +--:(mwtopo:microwave-radio-link)
| | | | | +--rw mwtopo:microwave-radio-link!
| | | | | +--rw mwtopo:rlt-mode
| | | | | +--rw mwtopo:num-bonded-carriers
uint32
| | | | | +--rw mwtopo:num-protecting-carriers
uint32
| | | | +--:(mwtopo:microwave-carrier)
| | | | +--rw mwtopo:microwave-carrier!
| | | | +--rw mwtopo:tx-frequency? uint32
| | | | +--rw mwtopo:rx-frequency? uint32
| | | | +--rw mwtopo:channel-separation? uint32
| | | | +--ro mwtopo:actual-tx-cm? identityref
| | | | +--ro mwtopo:actual-snir? decimal64
| | | | +--ro mwtopo:actual-transmitted-level?
decimal64
The Microwave Topology Model augments the TE Topology Model.
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Node N1 Node N2
+--------------+ +--------------+
| +----------+ | | +----------+ | L2-network
| | L2-N1- | | L2-N1-N2 | | L2-N2-| | -L2 topology
| | TP1 o---------------------o TP2 | |
| +----------+ | ' | +----------+ | Supporting
| : | ' | : | ' mw link
| : | ' | : | : TPs
| +----------+ | ' | +----------+ |
| |mw-N1- | | mwrl-N1-N2 | | mw-N2-| | MW-network
| |RLTP1 o---------------------o RLTP2 | | -MW topology
| +----------+ | * | +----------+ |
| : : | ******* ******* | : : |
| :: |** **| :: | Supporting
| +-------:--+ * * * * +--:-------+ | : TPs
| |mw-N1- : * | * mwc-N1-N2-A * | * : mw-N2-| | * carriers as
| |CTP1 : o---------------------o : CTP2 | | bundled links
| +-------:--+ | * * | +--:-------+ |
| : |* *| : |
| +----------+ * * +----------+ |
| |mw-N1- * | mwc-N1-N2-B | * mw-N2-| |
| |CTP3 o---------------------o CTP4 | |
| +----------+ | | +----------+ |
+--------------+ +--------------+
L2 transported over a (2+0) microwave radio link
A.1. Instance data for 2+0 mode for a bonded configuration
{
"ietf-network:networks": {
"network": [
{
"network-id": "L2-network",
"network-types": {
"ietf-te-topology:te-topology": {}
},
"supporting-network": [
{
"network-ref": "mw-network"
}
],
"node": [
{
"node-id": "L2-N1",
"supporting-node": [
{
"network-ref": "mw-network",
"node-ref": "mw-N1"
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}
],
"ietf-network-topology:termination-point": [
{
"tp-id": "L2-N1-TP1",
"supporting-termination-point": [
{
"network-ref": "mw-network",
"node-ref": "mw-N1",
"tp-ref": "mw-N1-RLTP1"
}
]
}
]
},
{
"node-id": "L2-N2",
"supporting-node": [
{
"network-ref": "mw-network",
"node-ref": "mw-N2"
}
],
"ietf-network-topology:termination-point": [
{
"tp-id": "L2-N2-TP2",
"supporting-termination-point": [
{
"network-ref": "mw-network",
"node-ref": "mw-N2",
"tp-ref": "mw-N2-RLTP2"
}
]
}
]
}
],
"ietf-network-topology:link": [
{
"link-id": "L2-N1-N2",
"source": {
"source-node": "L2-N1",
"source-tp": "L2-N1-TP1"
},
"destination": {
"dest-node": "L2-N2",
"dest-tp": "L2-N2-TP2"
},
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"supporting-link": [
{
"network-ref": "mw-network",
"link-ref": "mwrl-N1-N2"
}
]
}
]
},
{
"network-id": "mw-network",
"network-types": {
"ietf-te-topology:te-topology": {
"ietf-microwave-topology:mw-topology": {}
}
},
"supporting-network": [
{
"network-ref": "mw-network"
}
],
"node": [
{
"node-id": "mw-N1",
"supporting-node": [
{
"network-ref": "mw-network",
"node-ref": "mw-N1"
}
],
"ietf-network-topology:termination-point": [
{
"tp-id": "mw-N1-RLTP1",
"supporting-termination-point": [
{
"network-ref": "mw-network",
"node-ref": "mw-N1",
"tp-ref": "mw-N1-CTP1"
},
{
"network-ref": "mw-network",
"node-ref": "mw-N1",
"tp-ref": "mw-N1-CTP3"
}
],
"ietf-te-topology:te-tp-id": "192.0.2.3",
"ietf-te-topology:te": {
"ietf-microwave-topology:mw-tp": {
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"microwave-rltp": {}
}
}
},
{
"tp-id": "mw-N1-CTP1",
"ietf-te-topology:te-tp-id": 1,
"ietf-te-topology:te": {
"ietf-microwave-topology:mw-tp": {
"microwave-ctp": {}
}
}
},
{
"tp-id": "mw-N1-CTP3",
"ietf-te-topology:te-tp-id": 2,
"ietf-te-topology:te": {
"ietf-microwave-topology:mw-tp": {
"microwave-ctp": {}
}
}
}
]
},
{
"node-id": "mw-N2",
"supporting-node": [
{
"network-ref": "mw-network",
"node-ref": "mw-N2"
}
],
"ietf-network-topology:termination-point": [
{
"tp-id": "mw-N2-RLTP2",
"supporting-termination-point": [
{
"network-ref": "mw-network",
"node-ref": "mw-N2",
"tp-ref": "mw-N2-CTP2"
},
{
"network-ref": "mw-network",
"node-ref": "mw-N2",
"tp-ref": "mw-N2-CTP4"
}
],
"ietf-te-topology:te-tp-id": "192.0.2.4",
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"ietf-te-topology:te": {
"ietf-microwave-topology:mw-tp": {
"microwave-rltp": {}
}
}
},
{
"tp-id": "mw-N2-CTP2",
"ietf-te-topology:te-tp-id": 1,
"ietf-te-topology:te": {
"ietf-microwave-topology:mw-tp": {
"microwave-ctp": {}
}
}
},
{
"tp-id": "mw-N2-CTP4",
"ietf-te-topology:te-tp-id": 2,
"ietf-te-topology:te": {
"ietf-microwave-topology:mw-tp": {
"microwave-ctp": {}
}
}
}
]
}
],
"ietf-network-topology:link": [
{
"link-id": "mwrl-N1-N2",
"source": {
"source-node": "mw-N1",
"source-tp": "mw-N1-RLTP1"
},
"destination": {
"dest-node": "mw-N2",
"dest-tp": "mw-N2-RLTP2"
},
"ietf-te-topology:te": {
"bundled-links": {
"bundled-link": [
{
"sequence": 1,
"src-tp-ref": "mw-N1-CTP1",
"des-tp-ref": "mw-N2-CTP2"
},
{
"sequence": 2,
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"src-tp-ref": "mw-N1-CTP3",
"des-tp-ref": "mw-N2-CTP4"
}
]
},
"te-link-attributes": {
"ietf-microwave-topology:mw-link": {
"microwave-radio-link": {
"rlt-mode": {
"num-bonded-carriers": 2,
"num-protecting-carriers": 0
}
}
}
}
}
},
{
"link-id": "mwc-N1-N2-A",
"source": {
"source-node": "mw-N1",
"source-tp": "mw-N1-CTP1"
},
"destination": {
"dest-node": "mw-N2",
"dest-tp": "mw-N2-CTP2"
},
"ietf-te-topology:te": {
"te-link-attributes": {
"ietf-microwave-topology:mw-link": {
"microwave-carrier": {
"tx-frequency": 10728000,
"rx-frequency": 10615000,
"channel-separation": 28000
}
}
}
}
},
{
"link-id": "mwc-N1-N2-B",
"source": {
"source-node": "mw-N1",
"source-tp": "mw-N1-CTP3"
},
"destination": {
"dest-node": "mw-N2",
"dest-tp": "mw-N2-CTP4"
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},
"ietf-te-topology:te": {
"te-link-attributes": {
"ietf-microwave-topology:mw-link": {
"microwave-carrier": {
"tx-frequency": 10528000,
"rx-frequency": 10415000,
"channel-separation": 28000
}
}
}
}
}
]
}
]
}
}
A.2. Instance data for 1+1 mode for a protected configuration
{
"ietf-network:networks": {
"network": [
{
"network-id": "L2-network",
"network-types": {
"ietf-te-topology:te-topology": {}
},
"supporting-network": [
{
"network-ref": "mw-network"
}
],
"node": [
{
"node-id": "L2-N1",
"supporting-node": [
{
"network-ref": "mw-network",
"node-ref": "mw-N1"
}
],
"ietf-network-topology:termination-point": [
{
"tp-id": "L2-N1-TP1",
"supporting-termination-point": [
{
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"network-ref": "mw-network",
"node-ref": "mw-N1",
"tp-ref": "mw-N1-RLTP1"
}
]
}
]
},
{
"node-id": "L2-N2",
"supporting-node": [
{
"network-ref": "mw-network",
"node-ref": "mw-N2"
}
],
"ietf-network-topology:termination-point": [
{
"tp-id": "L2-N2-TP2",
"supporting-termination-point": [
{
"network-ref": "mw-network",
"node-ref": "mw-N2",
"tp-ref": "mw-N2-RLTP2"
}
]
}
]
}
],
"ietf-network-topology:link": [
{
"link-id": "L2-N1-N2",
"source": {
"source-node": "L2-N1",
"source-tp": "L2-N1-TP1"
},
"destination": {
"dest-node": "L2-N2",
"dest-tp": "L2-N2-TP2"
},
"supporting-link": [
{
"network-ref": "mw-network",
"link-ref": "mwrl-N1-N2"
}
]
}
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]
},
{
"network-id": "mw-network",
"network-types": {
"ietf-te-topology:te-topology": {
"ietf-microwave-topology:mw-topology": {}
}
},
"supporting-network": [
{
"network-ref": "mw-network"
}
],
"node": [
{
"node-id": "mw-N1",
"supporting-node": [
{
"network-ref": "mw-network",
"node-ref": "mw-N1"
}
],
"ietf-network-topology:termination-point": [
{
"tp-id": "mw-N1-RLTP1",
"supporting-termination-point": [
{
"network-ref": "mw-network",
"node-ref": "mw-N1",
"tp-ref": "mw-N1-CTP1"
},
{
"network-ref": "mw-network",
"node-ref": "mw-N1",
"tp-ref": "mw-N1-CTP3"
}
],
"ietf-te-topology:te-tp-id": "192.0.2.3",
"ietf-te-topology:te": {
"ietf-microwave-topology:mw-tp": {
"microwave-rltp": {}
}
}
},
{
"tp-id": "mw-N1-CTP1",
"ietf-te-topology:te-tp-id": 1,
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"ietf-te-topology:te": {
"ietf-microwave-topology:mw-tp": {
"microwave-ctp": {}
}
}
},
{
"tp-id": "mw-N1-CTP3",
"ietf-te-topology:te-tp-id": 2,
"ietf-te-topology:te": {
"ietf-microwave-topology:mw-tp": {
"microwave-ctp": {}
}
}
}
]
},
{
"node-id": "mw-N2",
"supporting-node": [
{
"network-ref": "mw-network",
"node-ref": "mw-N2"
}
],
"ietf-network-topology:termination-point": [
{
"tp-id": "mw-N2-RLTP2",
"supporting-termination-point": [
{
"network-ref": "mw-network",
"node-ref": "mw-N2",
"tp-ref": "mw-N2-CTP2"
},
{
"network-ref": "mw-network",
"node-ref": "mw-N2",
"tp-ref": "mw-N2-CTP4"
}
],
"ietf-te-topology:te-tp-id": "192.0.2.4",
"ietf-te-topology:te": {
"ietf-microwave-topology:mw-tp": {
"microwave-rltp": {}
}
}
},
{
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"tp-id": "mw-N2-CTP2",
"ietf-te-topology:te-tp-id": 1,
"ietf-te-topology:te": {
"ietf-microwave-topology:mw-tp": {
"microwave-ctp": {}
}
}
},
{
"tp-id": "mw-N2-CTP4",
"ietf-te-topology:te-tp-id": 2,
"ietf-te-topology:te": {
"ietf-microwave-topology:mw-tp": {
"microwave-ctp": {}
}
}
}
]
}
],
"ietf-network-topology:link": [
{
"link-id": "mwrl-N1-N2",
"source": {
"source-node": "mw-N1",
"source-tp": "mw-N1-RLTP1"
},
"destination": {
"dest-node": "mw-N2",
"dest-tp": "mw-N2-RLTP2"
},
"ietf-te-topology:te": {
"bundled-links": {
"bundled-link": [
{
"sequence": 1,
"src-tp-ref": "mw-N1-CTP1",
"des-tp-ref": "mw-N2-CTP2"
},
{
"sequence": 2,
"src-tp-ref": "mw-N1-CTP3",
"des-tp-ref": "mw-N2-CTP4"
}
]
},
"te-link-attributes": {
"ietf-microwave-topology:mw-link": {
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"microwave-radio-link": {
"rlt-mode": {
"num-bonded-carriers": 1,
"num-protecting-carriers": 1
}
}
}
}
}
},
{
"link-id": "mwc-N1-N2-A",
"source": {
"source-node": "mw-N1",
"source-tp": "mw-N1-CTP1"
},
"destination": {
"dest-node": "mw-N2",
"dest-tp": "mw-N2-CTP2"
},
"ietf-te-topology:te": {
"te-link-attributes": {
"ietf-microwave-topology:mw-link": {
"microwave-carrier": {
"tx-frequency": 10728000,
"rx-frequency": 10615000,
"channel-separation": 28000
}
}
}
}
},
{
"link-id": "mwc-N1-N2-B",
"source": {
"source-node": "mw-N1",
"source-tp": "mw-N1-CTP3"
},
"destination": {
"dest-node": "mw-N2",
"dest-tp": "mw-N2-CTP4"
},
"ietf-te-topology:te": {
"te-link-attributes": {
"ietf-microwave-topology:mw-link": {
"microwave-carrier": {
"tx-frequency": 10728000,
"rx-frequency": 10615000,
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"channel-separation": 28000
}
}
}
}
}
]
}
]
}
}
Appendix B. Microwave Topology Model with example extensions
This appendix provides an examples of how the Microwave Topology
Model can be used with the interface reference topology (ifref) and
the bandwidth-availability-topology (bwa) models. There is also a
snippet of json to show geolocation information instance data. When
the json files have long lines, [RFC8792] is used to wrap the long
lines.
The tree below shows an example of the relevant leafs for a complete
Microwave Topology Model including interface reference topology
(ifref) and bandwidth-availability-topology (bwa) models.
module: ietf-network
+--rw networks
+--rw network* [network-id]
| +--rw network-id network-id
| +--rw network-types
| | +--rw tet:te-topology!
| | | +--rw mwtopo:mw-topology!
| +--rw supporting-network* [network-ref]
| | +--rw network-ref -> /networks/network/network-id
| +--rw node* [node-id]
| | +--rw node-id node-id
| | +--rw supporting-node* [network-ref node-ref]
| | | +--rw network-ref -> ../../../supporting-network/networ
k-ref
| | | +--rw node-ref -> /networks/network/node/node-id
| | +--rw nt:termination-point* [tp-id]
| | | +--rw nt:tp-id tp-id
| | | +--rw nt:supporting-termination-point* [network-ref node-r
ef tp-ref]
| | | | +--rw nt:network-ref -> ../../../nw:supporting-node/
network-ref
| | | | +--rw nt:node-ref -> ../../../nw:supporting-node/
node-ref
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| | | | +--rw nt:tp-ref -> /nw:networks/
network[nw:network-id=current()/../network-ref]/
node[nw:node-id=current()/../node-ref]/
termination-point/tp-id
| | | +--rw tet:te-tp-id? te-types:te-t
p-id
| | | +--rw tet:te!
| | | | +--rw tet:name? string
| | | | +--ro tet:geolocation
| | | | | +--ro tet:altitude? int64
| | | | | +--ro tet:latitude? geographic-coordinate-degree
| | | | | +--ro tet:longitude? geographic-coordinate-degree
| | | | +--rw mwtopo:mw-tp!
| | | | | +--rw (mwtopo:mw-tp-option)?
| | | | | +--:(mwtopo:microwave-rltp)
| | | | | | +--rw mwtopo:microwave-rltp!
| | | | | +--:(mwtopo:microwave-ctp)
| | | | | +--rw mwtopo:microwave-ctp!
| | | | +--rw ifref:tp-to-interface-path? -> /if:interfaces/
interface/name
| | +--rw tet:te-node-id? te-types:te-node-id
| +--rw nt:link* [link-id]
| | +--rw nt:link-id link-id
| | +--rw nt:source
| | | +--rw nt:source-node? -> ../../../nw:node/node-id
| | | +--rw nt:source-tp? -> ../../../
nw:node[nw:node-id=current()/../source-node]/termination-point/tp-id
| | +--rw nt:destination
| | | +--rw nt:dest-node? -> ../../../nw:node/node-id
| | | +--rw nt:dest-tp? -> ../../../
nw:node[nw:node-id=current()/../dest-node]/termination-point/tp-id
| | +--rw tet:te!
| | | +--rw (tet:bundle-stack-level)?
| | | | +--:(tet:bundle)
| | | | | +--rw tet:bundled-links
| | | | | +--rw tet:bundled-link* [sequence]
| | | | | +--rw tet:sequence uint32
| | | | | +--rw tet:src-tp-ref? -> ../../../../../
nw:node[nw:node-id = current()/../../../../nt:source/source-node]/
termination-point/tp-id
| | | | | +--rw tet:des-tp-ref? -> ../../../../../
nw:node[nw:node-id = current()/../../../../nt:destination/
dest-node]/termination-point/tp-id
| | | +--rw tet:te-link-attributes
| | | | +--rw tet:name? string
| | | | +--rw tet:admin-status? te-types:te-admin-status
| | | | +--rw tet:max-link-bandwidth
| | | | | +--rw tet:te-bandwidth
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| | | | | +--ro mwtopo:mw-bandwidth? uint64
| | | | +--rw mwtopo:mw-link!
| | | | +--rw (mwtopo:mw-link-option)?
| | | | +--:(mwtopo:microwave-radio-link)
| | | | | +--rw mwtopo:microwave-radio-link!
| | | | | +--rw mwtopo:rlt-mode
| | | | | +--rw mwtopo:num-bonded-carriers uint32
| | | | | +--rw mwtopo:num-protecting-carriers uint32
| | | | +--:(mwtopo:microwave-carrier)
| | | | +--rw mwtopo:microwave-carrier!
| | | | +--rw mwtopo:tx-frequency? uint32
| | | | +--rw mwtopo:rx-frequency? uint32
| | | | +--rw mwtopo:channel-separation? uint32
| | | | +--ro mwtopo:actual-tx-cm? identityref
| | | | +--ro mwtopo:actual-snir? decimal64
| | | | +--ro mwtopo:actual-transmitted-level?
decimal64
| | | | +--rw bwatopo:link-availability* [availability]
| | | | | +--rw bwatopo:availability decimal64
| | | | | +--rw bwatopo:link-bandwidth? uint64
| | | | +--ro bwatopo:actual-bandwidth? yang:gauge64
Microwave is a transport technology which can be used to transport
client services, such as L2 Ethernet links. When an L2 link is
transported over a single supporting microwave radio link, the
topologies could be as shown below. Note that the figure just shows
an example, there might be other possibilities to demonstrate such a
topology. The example of the instantiation encoded in JSON is using
only a selected subset of the leafs from the L2 topology model
[RFC8944].
Node N1 Node N2
+--------------+ +--------------+
| +----------+ | | +----------+ | L2-network
| | L2-N1- | | L2-N1-N2 | | L2-N2-| | -L2 topology
| | TP1 o---------------------o TP2 | |
| +----------+ | ' | +----------+ | Supporting
| : | ' | : | ' mw link
| : | ' | : | : TPs
| +----------+ | ' | +----------+ |
| |mw-N1- | | mwrl-N1-N2 | | mw-N2-| | MW-network
| |RLTP1 o---------------------o RLTP2 | | -MW topology
| +----------+ | * | +----------+ |
| : : | ******* ******* | : : |
| :: |** **| :: | Supporting
| +-------:--+ * * * * +--:-------+ | : TPs
| |mw-N1- : * | * mwc-N1-N2-A * | * : mw-N2-| | * carriers as
| |CTP1 : o---------------------o : CTP2 | | bundled links
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| +-------:--+ | * * | +--:-------+ |
| : |* *| : |
| +----------+ * * +----------+ |
| |mw-N1- * | mwc-N1-N2-B | * mw-N2-| |
| |CTP3 o---------------------o CTP4 | |
| +----------+ | | +----------+ |
+--------------+ +--------------+
L2 transported over a (2+0) microwave radio link
Node N1 Interfaces
+---------------+ +----------------+
| +-----------+ |tp-to-interface-path| +------------+ |
| | L2-N1-TP1 |************************|L2Interface1| |
| +-----------+ | | +------------+ |
| | | |
| +-----------+ |tp-to-interface-path| +------------+ |
| |mw-N1-RLTP1|************************| RLT-1 | |
| +-----------+ | | +------------+ |
| | | |
| +-----------+ |tp-to-interface-path| +------------+ |
| |mw-N1-CTP1 |************************| CT-1 | |
| +-----------+ | | +------------+ |
| | | |
| +-----------+ |tp-to-interface-path| +------------+ |
| |mw-N1-CTP3 |************************| CT-3 | |
| +-----------+ | | +------------+ |
+---------------+ +----------------+
Topology model information to the associated interface
management model information for Node N1
Node N2 Interfaces
+---------------+ +----------------+
| +-----------+ |tp-to-interface-path| +------------+ |
| | L2-N2-TP2 |************************|L2Interface2| |
| +-----------+ | | +------------+ |
| | | |
| +-----------+ |tp-to-interface-path| +------------+ |
| |mw-N2-RLTP2|************************| RLT-2 | |
| +-----------+ | | +------------+ |
| | | |
| +-----------+ |tp-to-interface-path| +------------+ |
| |mw-N2-CTP2 |************************| CT-2 | |
| +-----------+ | | +------------+ |
| | | |
| +-----------+ |tp-to-interface-path| +------------+ |
| |mw-N2-CTP4 |************************| CT-4 | |
| +-----------+ | | +------------+ |
+---------------+ +----------------+
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Topology model information to the associated interface
management model information for Node N2
B.1. Instance data for 2+0 mode
A L2 network with a supporting microwave network, including
microwave-topology (MW) and bandwidth-availability-topology (BWA)
models as well as the reference to the associated interface
management information, is encoded in JSON as follows:
{
"ietf-interfaces:interfaces": {
"interface": [
{
"name": "L2Interface1",
"description": "'Ethernet Interface 1'",
"type": "iana-if-type:ethernetCsmacd"
},
{
"name": "L2Interface2",
"description": "'Ethernet Interface 2'",
"type": "iana-if-type:ethernetCsmacd"
},
{
"name": "RLT-1",
"description": "'Radio Link Terminal 1'",
"type": "iana-if-type:microwaveRadioLinkTerminal",
"ietf-microwave-radio-link:mode":
"ietf-microwave-types:two-plus-zero",
"ietf-microwave-radio-link:carrier-terminations": [
"CT-1",
"CT-3"
]
},
{
"name": "RLT-2",
"description": "'Radio Link Terminal 2'",
"type": "iana-if-type:microwaveRadioLinkTerminal",
"ietf-microwave-radio-link:mode":
"ietf-microwave-types:two-plus-zero",
"ietf-microwave-radio-link:carrier-terminations": [
"CT-2",
"CT-4"
]
},
{
"name": "CT-1",
"description": "'Carrier Termination 1'",
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"type": "iana-if-type:microwaveCarrierTermination",
"ietf-microwave-radio-link:tx-frequency": 10728000,
"ietf-microwave-radio-link:duplex-distance": 113000,
"ietf-microwave-radio-link:channel-separation": 28000,
"ietf-microwave-radio-link:rtpc": {
"maximum-nominal-power": "20.0"
},
"ietf-microwave-radio-link:single": {
"selected-cm": "ietf-microwave-types:qam-512"
}
},
{
"name": "CT-3",
"description": "'Carrier Termination 3'",
"type": "iana-if-type:microwaveCarrierTermination",
"ietf-microwave-radio-link:tx-frequency": 10528000,
"ietf-microwave-radio-link:duplex-distance": 113000,
"ietf-microwave-radio-link:channel-separation": 28000,
"ietf-microwave-radio-link:rtpc": {
"maximum-nominal-power": "20.0"
},
"ietf-microwave-radio-link:single": {
"selected-cm": "ietf-microwave-types:qam-512"
}
},
{
"name": "CT-2",
"description": "'Carrier Termination 2'",
"type": "iana-if-type:microwaveCarrierTermination",
"ietf-microwave-radio-link:tx-frequency": 10615000,
"ietf-microwave-radio-link:duplex-distance": 113000,
"ietf-microwave-radio-link:channel-separation": 28000,
"ietf-microwave-radio-link:rtpc": {
"maximum-nominal-power": "20.0"
},
"ietf-microwave-radio-link:single": {
"selected-cm": "ietf-microwave-types:qam-512"
}
},
{
"name": "CT-4",
"description": "'Carrier Termination 4'",
"type": "iana-if-type:microwaveCarrierTermination",
"ietf-microwave-radio-link:tx-frequency": 10415000,
"ietf-microwave-radio-link:duplex-distance": 113000,
"ietf-microwave-radio-link:channel-separation": 28000,
"ietf-microwave-radio-link:rtpc": {
"maximum-nominal-power": "20.0"
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},
"ietf-microwave-radio-link:single": {
"selected-cm": "ietf-microwave-types:qam-512"
}
}
]
},
"ietf-network:networks": {
"network": [
{
"network-id": "L2-network",
"network-types": {
"ietf-te-topology:te-topology": {
"ietf-eth-te-topology:eth-tran-topology": {}
}
},
"supporting-network": [
{
"network-ref": "mw-network"
}
],
"node": [
{
"node-id": "L2-N1",
"supporting-node": [
{
"network-ref": "mw-network",
"node-ref": "mw-N1"
}
],
"ietf-network-topology:termination-point": [
{
"tp-id": "L2-N1-TP1",
"supporting-termination-point": [
{
"network-ref": "mw-network",
"node-ref": "mw-N1",
"tp-ref": "mw-N1-RLTP1"
}
]
}
],
"ietf-te-topology:te-node-id": "192.0.2.1",
"ietf-te-topology:te": {
"te-node-attributes": {
"ietf-eth-te-topology:eth-node": {}
}
}
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},
{
"node-id": "L2-N2",
"supporting-node": [
{
"network-ref": "mw-network",
"node-ref": "mw-N2"
}
],
"ietf-network-topology:termination-point": [
{
"tp-id": "L2-N2-TP2",
"supporting-termination-point": [
{
"network-ref": "mw-network",
"node-ref": "mw-N2",
"tp-ref": "mw-N2-RLTP2"
}
]
}
],
"ietf-te-topology:te-node-id": "192.0.2.2",
"ietf-te-topology:te": {
"te-node-attributes": {
"ietf-eth-te-topology:eth-node": {}
}
}
}
],
"ietf-network-topology:link": [
{
"link-id": "L2-N1-N2",
"source": {
"source-node": "L2-N1",
"source-tp": "L2-N1-TP1"
},
"destination": {
"dest-node": "L2-N2",
"dest-tp": "L2-N2-TP2"
},
"supporting-link": [
{
"network-ref": "mw-network",
"link-ref": "mwrl-N1-N2"
}
],
"ietf-te-topology:te": {
"te-link-attributes": {
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"interface-switching-capability": [
{
"switching-capability":
"ietf-te-types:switching-l2sc",
"encoding": "ietf-te-types:lsp-encoding-ethernet"
}
]
}
}
}
]
},
{
"network-id": "mw-network",
"network-types": {
"ietf-te-topology:te-topology": {
"ietf-microwave-topology:mw-topology": {}
}
},
"supporting-network": [
{
"network-ref": "mw-network"
}
],
"node": [
{
"node-id": "mw-N1",
"supporting-node": [
{
"network-ref": "mw-network",
"node-ref": "mw-N1"
}
],
"ietf-network-topology:termination-point": [
{
"tp-id": "mw-N1-RLTP1",
"supporting-termination-point": [
{
"network-ref": "mw-network",
"node-ref": "mw-N1",
"tp-ref": "mw-N1-CTP1"
},
{
"network-ref": "mw-network",
"node-ref": "mw-N1",
"tp-ref": "mw-N1-CTP3"
}
],
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"ietf-te-topology:te-tp-id": "192.0.2.3",
"ietf-te-topology:te": {
"ietf-microwave-topology:mw-tp": {
"microwave-rltp": {}
},
"ietf-tp-interface-reference-topology:tp-to-interface-path": "RLT-1"
}
},
{
"tp-id": "mw-N1-CTP1",
"ietf-te-topology:te-tp-id": 1,
"ietf-te-topology:te": {
"ietf-microwave-topology:mw-tp": {
"microwave-ctp": {}
},
"ietf-tp-interface-reference-topology:tp-to-interface-path": "CT-1"
}
},
{
"tp-id": "mw-N1-CTP3",
"ietf-te-topology:te-tp-id": 2,
"ietf-te-topology:te": {
"ietf-microwave-topology:mw-tp": {
"microwave-ctp": {}
},
"ietf-tp-interface-reference-topology:tp-to-interface-path": "CT-3"
}
}
],
"ietf-te-topology:te-node-id": "192.0.2.1",
"ietf-te-topology:te": {
"te-node-attributes": {
"ietf-microwave-topology:mw-node": {}
}
}
},
{
"node-id": "mw-N2",
"supporting-node": [
{
"network-ref": "mw-network",
"node-ref": "mw-N2"
}
],
"ietf-network-topology:termination-point": [
{
"tp-id": "mw-N2-RLTP2",
"supporting-termination-point": [
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{
"network-ref": "mw-network",
"node-ref": "mw-N2",
"tp-ref": "mw-N2-CTP2"
},
{
"network-ref": "mw-network",
"node-ref": "mw-N2",
"tp-ref": "mw-N2-CTP4"
}
],
"ietf-te-topology:te-tp-id": "192.0.2.4",
"ietf-te-topology:te": {
"ietf-microwave-topology:mw-tp": {
"microwave-rltp": {}
},
"ietf-tp-interface-reference-topology:tp-to-interface-path": "RLT-2"
}
},
{
"tp-id": "mw-N2-CTP2",
"ietf-te-topology:te-tp-id": 1,
"ietf-te-topology:te": {
"ietf-microwave-topology:mw-tp": {
"microwave-ctp": {}
},
"ietf-tp-interface-reference-topology:tp-to-interface-path": "CT-2"
}
},
{
"tp-id": "mw-N2-CTP4",
"ietf-te-topology:te-tp-id": 2,
"ietf-te-topology:te": {
"ietf-microwave-topology:mw-tp": {
"microwave-ctp": {}
},
"ietf-tp-interface-reference-topology:tp-to-interface-path": "CT-4"
}
}
],
"ietf-te-topology:te-node-id": "192.0.2.1",
"ietf-te-topology:te": {
"te-node-attributes": {
"ietf-microwave-topology:mw-node": {}
}
}
}
],
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"ietf-network-topology:link": [
{
"link-id": "mwrl-N1-N2",
"source": {
"source-node": "mw-N1",
"source-tp": "mw-N1-RLTP1"
},
"destination": {
"dest-node": "mw-N2",
"dest-tp": "mw-N2-RLTP2"
},
"ietf-te-topology:te": {
"bundled-links": {
"bundled-link": [
{
"sequence": 1,
"src-tp-ref": "mw-N1-CTP1",
"des-tp-ref": "mw-N2-CTP2"
},
{
"sequence": 2,
"src-tp-ref": "mw-N1-CTP3",
"des-tp-ref": "mw-N2-CTP4"
}
]
},
"te-link-attributes": {
"ietf-microwave-topology:mw-link": {
"microwave-radio-link": {
"rlt-mode": {
"num-bonded-carriers": 2,
"num-protecting-carriers": 0
}
}
}
}
}
},
{
"link-id": "mwc-N1-N2-A",
"source": {
"source-node": "mw-N1",
"source-tp": "mw-N1-CTP1"
},
"destination": {
"dest-node": "mw-N2",
"dest-tp": "mw-N2-CTP2"
},
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"ietf-te-topology:te": {
"te-link-attributes": {
"ietf-bandwidth-availability-topology:link-availability": [
{
"availability": "0.99",
"link-bandwidth": "998423"
},
{
"availability": "0.95",
"link-bandwidth": "1048576"
}
],
"ietf-microwave-topology:mw-link": {
"microwave-carrier": {
"tx-frequency": 10728000,
"rx-frequency": 10615000,
"channel-separation": 28000
}
}
}
}
},
{
"link-id": "mwc-N1-N2-B",
"source": {
"source-node": "mw-N1",
"source-tp": "mw-N1-CTP3"
},
"destination": {
"dest-node": "mw-N2",
"dest-tp": "mw-N2-CTP4"
},
"ietf-te-topology:te": {
"te-link-attributes": {
"ietf-microwave-topology:mw-link": {
"microwave-carrier": {
"tx-frequency": 10528000,
"rx-frequency": 10415000,
"channel-separation": 28000
}
}
}
}
}
]
}
]
}
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}
B.2. Instance data for geolocation information
This example provides a json snippet that shows geolocation
information.
"node": [
{
"node-id": "mw-N1",
...
"ietf-te-topology:te" : {
"ietf-te-topology:geolocation": {
"altitude": "200000",
"latitude": "45",
"longitude": "90"
}
},
"ietf-network-topology:termination-point": [
...
Acknowledgments
This document was prepared using kramdown
The authors would like to thank Tom Petch for his review.
Contributors
Italo Busi
Huawei Technologies
Email: italo.busi@huawei.com
Authors' Addresses
Scott Mansfield (editor)
Ericsson Inc
Email: scott.mansfield@ericsson.com
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Jonas Ahlberg
Ericsson AB
Lindholmspiren 11
SE-417 56 Goteborg
Sweden
Email: jonas.ahlberg@ericsson.com
Min Ye
Huawei Technologies
No.1899, Xiyuan Avenue
Chengdu
611731
China
Email: amy.yemin@huawei.com
Xi Li
NEC Laboratories Europe
Kurfursten-Anlage 36
69115 Heidelberg
Germany
Email: Xi.Li@neclab.eu
Daniela Spreafico
Nokia - IT
Via Energy Park, 14
20871 Vimercate (MI)
Italy
Email: daniela.spreafico@nokia.com
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