Internet DRAFT - draft-ietf-ccamp-mw-topo-yang
draft-ietf-ccamp-mw-topo-yang
CCAMP Working Group S. Mansfield, Ed.
Internet-Draft Ericsson Inc
Intended status: Standards Track J. Ahlberg
Expires: 31 August 2024 Ericsson AB
M. Ye
Huawei Technologies
X. Li
NEC Laboratories Europe
D. Spreafico
Nokia - IT
28 February 2024
A YANG Data Model for Microwave Topology
draft-ietf-ccamp-mw-topo-yang-12
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 31 August 2024.
Copyright Notice
Copyright (c) 2024 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. Abbreviations . . . . . . . . . . . . . . . . . . . . . . 4
1.2. Tree Structure . . . . . . . . . . . . . . . . . . . . . 4
1.3. Prefixes in Data Node Names . . . . . . . . . . . . . . . 4
2. Microwave Topology YANG Data Model . . . . . . . . . . . . . 4
2.1. YANG Tree . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2. Relationship between radio links and carriers . . . . . . 5
2.3. Relationship with client topology model . . . . . . . . . 6
2.4. Applicability of the Data Model for Traffic Engineering
(TE) Topologies . . . . . . . . . . . . . . . . . . . . . 6
2.5. Microwave Topology YANG Module . . . . . . . . . . . . . 6
3. Security Considerations . . . . . . . . . . . . . . . . . . . 13
4. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 14
5. References . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.1. Normative References . . . . . . . . . . . . . . . . . . 14
5.2. 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 Layer 0 / Layer 1 (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 Layer 2 (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
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, with the purpose to minimize overall interference
and/or maximize the overall capacity provided by the links.
1.1. Abbreviations
The following abbreviations are used in this document:
CTP Carrier Termination Point
RLT Radio Link Terminal
RLTP Radio Link Termination Point
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].
1.3. Prefixes in Data Node Names
In this document, names of data nodes and other data model objects
are prefixed using the standard prefix associated with the
corresponding YANG imported modules, as shown in Table 1.
+==========+=========================+===============+
| Prefix | YANG Module | Reference |
+==========+=========================+===============+
| mwt | ietf-microwave-topology | This document |
+----------+-------------------------+---------------+
| nw | ietf-network | [RFC8345] |
+----------+-------------------------+---------------+
| nt | ietf-network-topology | [RFC8345] |
+----------+-------------------------+---------------+
| mw-types | ietf-microwave-types | [RFC8561] |
+----------+-------------------------+---------------+
| tet | ietf-te-topology | [RFC8795] |
+----------+-------------------------+---------------+
Table 1: Prefixes for imported YANG modules
2. Microwave Topology YANG Data Model
2.1. 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
Figure 1: Microwave Topology Tree
2.2. 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
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the radio-link. Appendix A includes JSON examples of how such a
relationship can be modelled.
2.3. 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.
2.4. Applicability of the Data Model for Traffic Engineering (TE)
Topologies
Since microwave is a point-to-point radio technology, 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 in the context of the microwave-specific
augmentations of te-topology, admin-status and oper-status leafs
(from te-topology) are only applicable to microwave carriers (in the
mw-link tree) and not microwave radio links. Enable and disable of a
radio link is instead done in the constituent carriers. Furthermore
the status leafs related to mw-tp can be used when links are inter-
domain and when the status of only one side of the 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.
2.5. Microwave Topology YANG Module
This module imports typedefs and modules from [RFC8345], [RFC8561],
and [RFC8795], and it references [EN301129] and [EN302217-1].
<CODE BEGINS> file "ietf-microwave-topology@2024-02-27.yang"
module ietf-microwave-topology {
yang-version 1.1;
namespace "urn:ietf:params:xml:ns:yang:ietf-microwave-topology";
prefix mwt;
import ietf-network {
prefix nw;
reference
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"RFC 8345: A YANG Data Model for Network Topologies";
}
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) 2024 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
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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 2024-02-27 {
description
"Last call comment resolutions.";
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
link.";
uses rlt-mode;
}
}
grouping microwave-carrier-attributes {
description
"Grouping used for attributes describing a microwave
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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";
}
leaf actual-snir {
type decimal64 {
fraction-digits 1;
}
units "dB";
config false;
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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.";
description
"Microwave topology type";
}
}
augment "/nw:networks/nw:network/nw:node/tet:te"
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+ "/tet:te-node-attributes" {
when '../../../nw:network-types'
+ '/tet:te-topology/mwt: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/'
+ 'mwt: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.";
}
}
case microwave-ctp {
container microwave-ctp {
presence "Denotes a microwave carrier termination point.
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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/'
+ 'mwt: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";
description
"Denotes and describes a microwave radio link";
uses microwave-radio-link-attributes;
}
}
case microwave-carrier {
container microwave-carrier {
presence "Denotes a microwave carrier";
description
"Denotes and describes a microwave carrier";
uses microwave-carrier-attributes;
}
}
}
}
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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/'
+ 'mwt: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>
3. 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 can 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
behavior 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 behavior or make the
configuration invalid and thereby stop the operation of it.
4. 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 record the 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: mwt
Reference: RFC XXXX
5. References
5.1. Normative References
[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>.
[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>.
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[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>.
[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>.
5.2. 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.
[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.
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[I-D.draft-ietf-ccamp-bwa-topo-yang]
Ahlberg, J., Mansfield, S., Ye, M., Busi, I., Li, X., and
D. Spreafico, "A YANG Data Model for Bandwidth
Availability Topology", Work in Progress, Internet-Draft,
draft-ietf-ccamp-bwa-topo-yang-01, 18 October 2023,
<https://datatracker.ietf.org/doc/html/draft-ietf-ccamp-
bwa-topo-yang-01>.
[I-D.draft-ietf-ccamp-if-ref-topo-yang]
Ahlberg, J., Mansfield, S., Ye, M., Busi, I., Li, X., and
D. Spreafico, "A YANG Data Model for Interface Reference
Topology", Work in Progress, Internet-Draft, draft-ietf-
ccamp-if-ref-topo-yang-01, 18 October 2023,
<https://datatracker.ietf.org/doc/html/draft-ietf-ccamp-
if-ref-topo-yang-01>.
[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].
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module: ietf-network
+--rw networks
+--rw network* [network-id]
| +--rw network-id network-id
| +--rw network-types
| | +--rw tet:te-topology!
| | +--rw mwt: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/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 leafref
| | | +--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 mwt:mw-tp!
| | | +--rw (mwt:mw-tp-option)?
| | | +--:(mwt:microwave-rltp)
| | | | +--rw mwt:microwave-rltp!
| | | +--:(mwt:microwave-ctp)
| | | +--rw mwt: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? leafref
| | +--rw nt:destination
| | | +--rw nt:dest-node? -> ../../../nw:node/node-id
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| | | +--rw nt:dest-tp? leafref
| | +--rw nt:supporting-link* [network-ref link-ref]
| | | +--rw nt:network-ref
| | | | -> ../../../nw:supporting-network/network-ref
| | | +--rw nt:link-ref leafref
| | +--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? leafref
| | | | +--rw tet:des-tp-ref? leafref
| | +--rw tet:te-link-attributes
| | | +--rw tet:name? string
| | | +--rw tet:max-link-bandwidth
| | | | +--rw tet:te-bandwidth
| | | | +--ro mwt:mw-bandwidth? uint64
| | | +--rw mwt:mw-link!
| | | +--rw (mwt:mw-link-option)
| | | +--:(mwt:microwave-radio-link)
| | | | +--rw mwt:microwave-radio-link!
| | | | +--rw mwt:rlt-mode
| | | | +--rw mwt:num-bonded-carriers
| | | | | uint32
| | | | +--rw mwt:num-protecting-carriers
| | | | uint32
| | | +--:(mwt:microwave-carrier)
| | | +--rw mwt:microwave-carrier!
| | | +--rw mwt:tx-frequency?
| | | | uint32
| | | +--rw mwt:rx-frequency?
| | | | uint32
| | | +--rw mwt:channel-separation?
| | | | uint32
| | | +--ro mwt:actual-tx-cm?
| | | | identityref
| | | +--ro mwt:actual-snir?
| | | | decimal64
| | | +--ro mwt:actual-transmitted-level?
| | | decimal64
Figure 2: Microwave Topology with Augmentations Tree
The Microwave Topology Model augments the TE Topology Model.
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Node N1 Node N2
+--------------+ +--------------+
| +----------+ | | +----------+ | L2-network
| |L2-N1-TP1 | | L2-N1-N2 | |L2-N2-TP2 | | -L2 topology
| | o<--------------------->o | |
| +----------+ | ' | +----------+ | Supporting
| : | ' | : | ' mw link
| : | ' | : | : TPs
| +----------+ | ' | +----------+ |
| |mw-N1- | | mwrl-N1-N2 | | mw-N2- | | MW-network
| |RLTP1 o<----------*---------->o RLTP2 | | -MW topology
| +----------+ | / \ | +----------+ |
| : : | / \ | : : |
| :: | / \ | :: | Supporting
| +-------:--+ | / \ | +--:-------+ | : TPs
| |mw-N1- : *---+--' '--+---* : mw-N2-| | * carriers
| |CTP1 : o<--|---------------|-->o : CTP2 | | as bundled
| +-------:--+ | | mwc-N1-N2-A | | +--:-------+ | links
| : | | | | : |
| +----------+ | | | | +----------+ |
| |mw-N1-CTP3*---' '---*mw-N2-CTP4| |
| | o<--------------------->o | |
| +----------+ | mwc-N1-N2-B | +----------+ |
+--------------+ +--------------+
Figure 3: Example for L2 over microwave
A.1. Instance data for 2+0 mode for a bonded configuration
A L2 network with a supporting microwave network, showing a 2+0
microwave configuration. The num-bonded-carriers = 2 and the num-
protecting-carriers = 0 which means both carriers are active so there
is no redundancy but there is more capacity. The JSON encoding of
the 2+0 example data follows:
{
"ietf-network:networks": {
"network": [
{
"network-id": "L2-network",
"network-types": {
"ietf-te-topology:te-topology": {}
},
"supporting-network": [
{
"network-ref": "mw-network"
}
],
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"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"
}
]
}
]
},
{
"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": {
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"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"
}
]
}
]
},
{
"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",
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"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,
"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"
},
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{
"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": {}
}
}
},
{
"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": [
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{
"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"
},
"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",
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"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
}
}
}
}
}
]
}
]
}
}
A.2. Instance data for 1+1 mode for a protected configuration
A L2 network with a supporting microwave network, showing a 1+1
microwave configuration. The num-bonded-carriers = 1 and the num-
protecting-carriers = 1 which means there is a standby carrier
protecting the active carrier. The JSON encoding of the 1+1 example
data follows:
{
"ietf-network:networks": {
"network": [
{
"network-id": "L2-network",
"network-types": {
"ietf-te-topology:te-topology": {}
},
"supporting-network": [
{
"network-ref": "mw-network"
}
],
"node": [
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{
"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"
}
]
}
]
},
{
"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",
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"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"
}
]
}
]
},
{
"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",
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"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,
"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"
},
{
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"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": {}
}
}
},
{
"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": [
{
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"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": 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": {
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"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,
"channel-separation": 28000
}
}
}
}
}
]
}
]
}
}
Appendix B. Microwave Topology Model with example extensions
This non-normative appendix provides examples of how the Microwave
Topology Model can be used with the interface reference topology
(ifref) [I-D.draft-ietf-ccamp-if-ref-topo-yang] and the bandwidth-
availability-topology (bwa) [I-D.draft-ietf-ccamp-bwa-topo-yang]
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) [I-D.draft-ietf-ccamp-if-ref-topo-yang] and bandwidth-
availability-topology (bwa) [I-D.draft-ietf-ccamp-bwa-topo-yang]
models.
module: ietf-network
+--rw networks
+--rw network* [network-id]
| +--rw network-id network-id
| +--rw network-types
| | +--rw tet:te-topology!
| | +--rw mwt:mw-topology!
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| +--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/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 leafref
| | | +--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 mwt:mw-tp!
| | | | +--rw (mwt:mw-tp-option)?
| | | | +--:(mwt:microwave-rltp)
| | | | | +--rw mwt:microwave-rltp!
| | | | +--:(mwt:microwave-ctp)
| | | | +--rw mwt: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? leafref
| | +--rw nt:destination
| | | +--rw nt:dest-node? -> ../../../nw:node/node-id
| | | +--rw nt:dest-tp? leafref
| | +--rw nt:supporting-link* [network-ref link-ref]
| | | +--rw nt:network-ref
| | | | -> ../../../nw:supporting-network/network-ref
| | | +--rw nt:link-ref leafref
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| | +--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? leafref
| | | | +--rw tet:des-tp-ref? leafref
| | +--rw tet:te-link-attributes
| | | +--rw tet:name? string
| | | +--rw tet:max-link-bandwidth
| | | | +--rw tet:te-bandwidth
| | | | +--ro mwt:mw-bandwidth? uint64
| | | +--rw mwt:mw-link!
| | | | +--rw (mwt:mw-link-option)
| | | | +--:(mwt:microwave-radio-link)
| | | | | +--rw mwt:microwave-radio-link!
| | | | | +--rw mwt:rlt-mode
| | | | | +--rw mwt:num-bonded-carriers
| | | | | | uint32
| | | | | +--rw mwt:num-protecting-carriers
| | | | | uint32
| | | | +--:(mwt:microwave-carrier)
| | | | +--rw mwt:microwave-carrier!
| | | | +--rw mwt:tx-frequency?
| | | | | uint32
| | | | +--rw mwt:rx-frequency?
| | | | | uint32
| | | | +--rw mwt:channel-separation?
| | | | | uint32
| | | | +--ro mwt:actual-tx-cm?
| | | | | identityref
| | | | +--ro mwt:actual-snir?
| | | | | decimal64
| | | | +--ro mwt:actual-transmitted-level?
| | | | decimal64
| | | +--rw bwatopo:link-availability* [availability]
| | | | +--rw bwatopo:availability decimal64
| | | | +--rw bwatopo:link-bandwidth? uint64
| | | +--ro bwatopo:actual-bandwidth?
| | | yang:gauge64
Figure 4: Microwave Topology with Extensions Tree
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
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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]. The example below uses Figure 3 and adds the Interface
related information.
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 | |
| +-----------+ | | +------------+ |
+---------------+ +----------------+
-------------------------------------------------------
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 | |
| +-----------+ | | +------------+ |
+---------------+ +----------------+
Figure 5: Interface extension example for L2 over microwave
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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'",
"type": "iana-if-type:microwaveCarrierTermination",
"ietf-microwave-radio-link:tx-frequency": 10728000,
"ietf-microwave-radio-link:duplex-distance": 113000,
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"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"
},
"ietf-microwave-radio-link:single": {
"selected-cm": "ietf-microwave-types:qam-512"
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}
}
]
},
"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": {}
}
}
},
{
"node-id": "L2-N2",
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"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": {
"interface-switching-capability": [
{
"switching-capability": "ietf-te-types:switching-l2sc",
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"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"
}
],
"ietf-te-topology:te-tp-id": "192.0.2.3",
"ietf-te-topology:te": {
"ietf-microwave-topology:mw-tp": {
"microwave-rltp": {}
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},
"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",
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"dest-tp": "mw-N2-CTP2"
},
"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 the kramdown RFC tool written and
maintained by Carsten Bormann. Thanks to Martin Thomson for the
github integration of the kramdown RFC tool and for the aasvg tool
which is used for the ascii to SVG conversion.
The authors would like to thank Tom Petch, Éric Vyncke, and Rob
Wilton for their reviews.
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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