CCAMP J. Ahlberg
Internet Draft Ericsson
Intended status: Standards Track M. Ye
Huawei
X. Li
NEC Laboratories Europe
CJ. Bernardos
UC3M
Expires: April 2017 October 29, 2016
A YANG Data Model for Microwave Radio Link
draft-mwdt-ccamp-mw-yang-00
Abstract
This document defines a YANG data model in order to control and
manage the radio link interfaces, and the connectivity to packet
(typically Ethernet) interfaces in a microwave/millimeter wave node.
Status of this Memo
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Copyright Notice
Copyright (c) 2016 IETF Trust and the persons identified as the
document authors. All rights reserved.
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Table of Contents
1. Terminology and Definitions............................. 2
2. Introduction ........................................... 3
3. YANG Data Model (Tree Structure) ....................... 3
4. YANG Module ............................................ 5
5. Security Considerations................................ 17
6. IANA Considerations ................................... 18
7. References............................................. 18
7.1. Normative References ............................. 18
7.2. Informative References............................ 18
1. Terminology and Definitions
The following terms are used in this document:
Carrier Termination (CT) is an interface for the capacity provided
over the air by a single carrier. It is typically defined by its
transmitting and receiving frequencies.
Radio Link Terminal (RLT) is an interface providing packet capacity
and/or TDM capacity to the associated Ethernet and/or TDM interfaces
in a node and used for setting up a transport service over a
microwave/millimeter wave link.
The following acronyms are used in this document:
ACM Adaptive Coding Modulation
ATPC Automatic Transmit Power Control
CM Coding Modulation
CT Carrier Termination
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RLT Radio Link Terminal
RTPC Remote Transmit Power Control
XPIC Cross Polarization Interference Cancellation
MIMO Multiple-Input Multiple-Output
2. Introduction
This document defines a YANG data model for management and control
of the radio link interface(s) and the relationship to packet
(typically Ethernet) and/or TDM interfaces in a microwave/millimeter
wave node. The date model includes configuration and state data.
The design of the data model follows the framework for management
and control of microwave and millimeter wave interface parameters
defined in [I-D.mdt-ccamp-fmwk]. This framework identifies the need
and the scope of the YANG data model, the use cases and requirements
that the model needs to support. Moreover, it provides a detailed
gap analysis to identify the missing parameters and functionalities
of the existing and established models to support the specified use
cases and requirements, and based on that recommends how the gaps
should be filled with the development of the new model.
According to the conclusion of the gap analysis, the structure of
the data model is based on the structure defined in [I-D.ahlberg-
ccamp-microwave-radio-link] and it augments RFC 7223 to align with
the same structure for management of the packet interfaces. More
specifically, the model will include interface layering to manage
the capacity provided by a radio link terminal for the associated
Ethernet and TDM interfaces, using the principles for interface
layering described in RFC 7223 as a basis.
The designed YANG data model uses the IETF: Radio Link Model [I-
D.ahlberg-ccamp-microwave-radio-link] and the ONF: Microwave
Modeling [ONF-model] as the basis for the definition of the detailed
leafs/parameters, and proposes new ones to cover identified gaps
which are analyzed in [I-D.mdt-ccamp-fmwk].
3. YANG Data Model (Tree Structure)
module: ietf-microwave-radio-link
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augment /if:interfaces/if:interface:
+--rw RLT-Config
|--rw CT-Config
| +--rw carrier-id? string
| +--rw tx-enabled? boolean
| +--rw tx-frequency? uint32
| +--rw rx-frequency? uint32
| +--rw duplex-distance? uint32
| +--rw duplex-config? boolean
| +--rw polarization? enumeration
| +--rw power-mode? enumeration
| +--rw selected-output-power? power
| +--rw coding-modulation-mode? enumeration
| +--rw selected-cm? identityref
| +--rw selected-min-acm? identityref
| +--rw selected-max-acm? identityref
| +--rw if-loop? boolean
augment /if:interfaces-state/if:interface:
+--ro RLT-State
|--ro CT-State
+--rw Protection-Config
+--ro Protection-State
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+--rw XPIC-Config
+--rw MIMO-Config
Note: the current version only includes model definitions of CT-
Config, which does not form a complete model. More model definitions
will be provided in the future versions.
4. YANG Module
<CODE BEGINS> file "ietf-microwave-radio-link.yang"
module ietf-microwave-radio-link {
namespace "urn:ietf:params:xml:ns:yang:ietf-microwave-radio-link";
prefix mrl;
import ietf-yang-types {
prefix yang;
}
import ietf-interfaces {
prefix if;
}
import iana-if-type {
prefix ianaift;
}
organization
"IETF CCAMP Working Group";
contact
"jonas.ahlberg@ericsson.com
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amy.yemin@huawei.com
Xi.Li@neclab.eu
cjbc@it.uc3m.es
";
description
"This is a module for the entities in a generic microwave
system.";
revision 2016-10-29 {
description
"Draft revision.";
reference "";
}
/*
* Features
*/
feature xpic {
description
"Indicates that the device supports XPIC.";
}
feature mimo {
description
"Indicates that the device supports MIMO.";
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}
/*
* Interface identities
*/
identity radio-link-terminal {
base ianaift:iana-interface-type;
description
"Interface identity for a radio link terminal.";
}
identity carrier-termination {
base ianaift:iana-interface-type;
description
"Interface identity for a carrier termination.";
}
/*
* Coding and modulation identities
*/
identity coding-modulation {
description
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"The coding and modulation schemes.";
}
/*
* Typedefs
*/
typedef power {
type decimal64 {
fraction-digits 1;
}
description
"Type used for power values, selected and measured.";
}
/*
* Radio Link Terminal (RLT) - Configuration data nodes
* to be filled
*/
/*
* Carrier Termination (CT) - Configuration data nodes
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*/
augment "/if:interfaces/if:interface" {
when "if:type = 'mrl:carrier-termination'";
description
"Addition of data nodes for carrier termination to the
standard Interface data model, for interfaces of the type
'carrier-termination'.";
leaf carrier-id {
type string;
default "A";
description
"ID of the carrier. (e.g. A, B, C or D)
Used in multi carrier configuration, such as XPIC & MIMO
configurations to check that the carrier termination is
connected to the correct far-end carrier termination.
Should be the same carrier ID on both sides of the hop.
Defaulted when single carrier configuration.";
}
leaf tx-enabled {
type boolean;
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description
"The adminstrative status of the transmitter.
True (enable) or False(disable) or the transmitter.
Only applicable when the interface is enabled
(interface:enabled = true) otherwise it's always
disabled.";
}
leaf tx-frequency {
type uint32;
units "kHz";
default "0";
description
"Selected transmitter frequency.";
}
leaf rx-frequency {
type uint32;
units "kHz";
default "0";
description
"Selected receiver frequency.
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Only writeable when duplex-config=disabled and
duplex-type=variable.";
}
leaf duplex-distance {
type uint32;
units "kHz";
default "0";
description
"Distance between Tx & Rx frequencies.
Only writeable when duplex-config=true and
duplex-type=variable.";
}
leaf duplex-config {
type boolean;
default "false";
description
"Enable (true) or disable (false) configuration of
rx-Frequency using a defined duplex distance.";
}
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leaf polarization {
type enumeration {
enum "horizontal" {
description "Horizontal polarization.";
}
enum "vertical" {
description "Vertical polarization.";
}
enum "not-specified" {
description "Polarization not specified.";
}
}
default "not-specified";
description
"Polarization - A textual description for info only.";
}
leaf power-mode {
type enumeration {
enum rtpc {
description "Remote Transmit Power Control (RTPC).";
}
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enum atpc {
description "Automatic Transmit Power Control (ATPC).";
}
}
description
"A choice of Remote Transmit Power Control (RTPC)
or Automatic Transmit Power Control (ATPC).";
}
leaf selected-output-power {
when "../power-mode = 'rtpc'";
type power;
units "dBm";
description
"Selected output power in RTPC mode.";
}
leaf coding-modulation-mode {
type enumeration {
enum fixed {
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description "Fixed coding/modulation.";
}
enum adaptive {
description "Adaptive coding/modulation.";
}
}
description
"A selection of fixed or
adaptive coding/modulation mode.";
}
leaf selected-cm {
when "../coding-modulation-mode = 'fixed'";
type identityref {
base coding-modulation;
}
description
"Selected fixed coding/modulation.";
}
leaf selected-min-acm {
when "../coding-modulation-mode = 'adaptive'";
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type identityref {
base coding-modulation;
}
description
"Selected minimum coding/modulation.
Adaptive coding/modulation shall not go
below this value.";
}
leaf selected-max-acm {
when "../coding-modulation-mode = 'adaptive'";
type identityref {
base coding-modulation;
}
description
"Selected maximum coding/modulation.
Adaptive coding/modulation shall not go
above this value.";
}
leaf if-loop {
type boolean;
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default "false";
description
"Enable (true) or disable (false) the intermediate
frequency (IF) loop, which loops the signal back to the
client side(not the radio side).";
}
/*
* Radio Link Termination - state data nodes
* to be filled
*/
/*
* Carrier Termination - state data nodes
* to be filled
*/
/*
* Radio Link Protection - Configuration data nodes
* to be filled
*/
/*
* Radio Link Protection - state data nodes
* to be filled
*/
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/*
* XPIC - Configuration data nodes
* to be filled
*/
/*
* MIMO - Configuration data nodes
* to be filled
*/
}
}
<CODE ENDS>
5. Security Considerations
The YANG module defined in this memo is designed to be accessed via
the NETCONF protocol [RFC6241]. The lowest NETCONF layer is the
secure transport layer and the mandatory-to-implement secure
transport is SSH [RFC6242]. The NETCONF access control model
[RFC6536] provides the means to restrict access for particular
NETCONF users to a pre-configured subset of all available NETCONF
protocol operations and content.
There are a number of data nodes defined in the YANG module which
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.
The security considerations of [RFC7223] also apply to this document.
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6. IANA Considerations
TBD.
7. References
7.1. Normative References
[RFC7223] Bjorklund M., "A YANG Data Model for Interface Management",
RFC 7223, DOI 10.17487/RFC7223, May 2014, <http://www.rfc-
editor.org/info/rfc7223>.
7.2. Informative References
[I-D.mdt-ccamp-fmwk]
Ahlberg J., et al., " A framework for Management and
Control of microwave and millimeter wave interface
parameters ", draft-mwdt-ccamp-fmwk-00 (work in progress),
October 2016.
[I-D.ahlberg-ccamp-microwave-radio-link]
Ahlberg J., Carlson J., Lund H., Olausson T., Ye M., and
Vaupotic M., "Microwave Radio Link YANG Data Models",
draft-ahlberg-ccamp-microwave-radio-link-01 (work in
progress), May 2016.
[ONF-model]
"Microwave Modeling - ONF Wireless Transport Group", May
2016.
[RFC6241] Enns, R., Bjorklund, M., Schoenwaelder, J., and A.Bierman,
"Network Configuration Protocol (NETCONF)",RFC 6241, June
2011.
[RFC6242] Wasserman, M., "Using the NETCONF Protocol over
SecureShell (SSH)", RFC 6242, June 2011.
[RFC6536] Bierman, A. and M. Bjorklund, "Network
ConfigurationProtocol (NETCONF) Access Control Model", RFC
6536, March 2012.
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Authors' Addresses
Jonas Ahlberg
Ericsson AB
Lindholmspiren 11
Goeteborg 417 56
Sweden
Email: jonas.ahlberg@ericsson.com
Ye Min
Huawei Technologies Co., Ltd.
No.1899, Xiyuan Avenue
Chengdu 611731,
P.R.China
Email: amy.yemin@huawei.com
Xi Li
NEC Laboratories Europe
Kurfursten-Anlage 36
69115 Heidelberg
Germany
Email: Xi.Li@neclab.eu
Carlos J. Bernardos
Universidad Carlos III de Madrid
Av. Universidad, 30
Leganes, Madrid 28911
Spain
Email: cjbc@it.uc3m.es
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