Internet Engineering Task Force G.Galimberti, Ed.
Internet-Draft Cisco
Intended status: Informational R.Kunze
Expires: May 4, 2017 Deutsche Telekom
D. Hiremagalur, Ed.
G. G.Grammel, Ed.
Juniper
October 31, 2016
A YANG model to manage the optical optical parameters for in a WDM
network
draft-galimbe-ccamp-iv-yang-01
Abstract
This memo defines a Yang model that translate the information model
to support Impairment-Aware (IA) Routing and Wavelength Assignment
(RWA) functionality. The information model is defined in draft-ietf-
ccamp-wson-iv-info and draft-martinelli-ccamp-wson-iv-encode. This
document defines proper encoding and extend to the models defined in
draft-lee-ccamp-wson-yang tu support Impairment-Aware (IA) Routing
and Wavelength Assignment (RWA) functions
The Yang model defined in this memo can be used for Optical
Parameters monitoring and/or configuration of the multivendor
Endpoints and ROADMs
Copyright Notice
Copyright (c) 2014 IETF Trust and the persons identified as the
document authors. All rights reserved.
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 http://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
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This Internet-Draft will expire on May 4, 2017.
Copyright Notice
Copyright (c) 2016 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
(http://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 Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
2. The Internet-Standard Management Framework . . . . . . . . . 3
3. Conventions . . . . . . . . . . . . . . . . . . . . . . . . . 4
4. Definition . . . . . . . . . . . . . . . . . . . . . . . . . 4
5. Applicability . . . . . . . . . . . . . . . . . . . . . . . . 4
6. Properties . . . . . . . . . . . . . . . . . . . . . . . . . 4
7. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 4
7.1. Optical Parameters Description . . . . . . . . . . . . . 5
7.1.1. Optical path from point Ss to Rs . . . . . . . . . . 6
7.1.2. Rs and Ss Configuration . . . . . . . . . . . . . . . 7
7.1.3. Table of Application Codes . . . . . . . . . . . . . 7
7.2. Use Cases . . . . . . . . . . . . . . . . . . . . . . . . 7
7.3. Optical Parameters for impairment validation in a WDM
network . . . . . . . . . . . . . . . . . . . . . . . . . 7
8. Structure of the Yang Module . . . . . . . . . . . . . . . . 8
9. Yang Module . . . . . . . . . . . . . . . . . . . . . . . . . 8
10. Security Considerations . . . . . . . . . . . . . . . . . . . 17
11. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 17
12. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 18
13. Contributors . . . . . . . . . . . . . . . . . . . . . . . . 18
14. References . . . . . . . . . . . . . . . . . . . . . . . . . 18
14.1. Normative References . . . . . . . . . . . . . . . . . . 18
14.2. Informative References . . . . . . . . . . . . . . . . . 20
Appendix A. Change Log . . . . . . . . . . . . . . . . . . . . . 21
Appendix B. Open Issues . . . . . . . . . . . . . . . . . . . . 21
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 21
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1. Introduction
This memo defines a Yang model that translates the existing mib
module defined in draft-ietf-ccamp-wson-iv-info and draft-martinelli-
ccamp-wson-iv-encode to provide the network impairment information to
an SDN controller. One of the key SND controller features is tu
support multi vendor network and support the service calculation and
deployment in multilayer topologies, for the DWDM mayer it is
fundamentad the SDN controller is aware of the optical impairments to
verify the feasibility of new circuits before their provisioning.
Although SDN controller will not apply exhaustive and accurate
algorithms and the optical channel feasibility verification may have
a degree of unreliability this function can work on a multivendor
common set of parameter and algorithms to ensure the operator the
best change to set a circuit. This document follows the same
impairment definition and applicability of draft-ietf-ccamp-wson-iv-
info.
For the optical impairments related to the DWDM Transceiver the draft
draft-dharini-ccamp-if-param-yang. Applications are defined in
G.698.2 [ITU.G698.2] using optical interface parameters at the
single-channel connection points between optical transmitters and the
optical multiplexer, as well as between optical receivers and the
optical demultiplexer in the DWDM system. This Recommendation uses a
methodology which explicitly specify the details of the optical
network between reference point Ss and Rs, e.g., the passive and
active elements or details of the design.
This draft refers and supports the draft-ietf-ccamp-dwdm-if-mng-ctrl-
fwk
The building of a yang model describing the optical parameters allows
the different vendors and operator to retrieve, provision and
exchange information across multi-vendor domains in a standardized
way. In addition to the parameters specified in ITU recommendations
the Yang models support also the "vendor specific parameters".
2. The Internet-Standard Management Framework
For a detailed overview of the documents that describe the current
Internet-Standard Management Framework, please refer to section 7 of
RFC 3410 [RFC3410].
This memo specifies a Yang model for optical interfaces.
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3. Conventions
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC 2119 [RFC2119] In
the description of OIDs the convention: Set (S) Get (G) and Trap (T)
conventions will describe the action allowed by the parameter.
4. Definition
For a detailed definition this draft refers to draft-ietf-ccamp-wson-
iv-info.
5. Applicability
This document targets at Scenario C defined in [RFC6566] section
4.1.1. as approximate impairment estimation. The Approximate
concept refer to the fact that this Information Model covers
information mainly provided by [ITU.G680] Computational Model.
Although the [RFC6566] provides no or little approximation the
parameters described in this draft can be applied to the algorithms
verifying the circuit feasibility in the new coherent non compensated
DWDM networks In this case the impairments verification can reach a
good reliability and accuracy. This draft does not address
computational matters but provides all the information suitable to
cover most of the full coherent network algoritms, not being
exhaustive the information can give a acceptable or even good
approximation in therm of connection feasibility. This may not be
true for legacy compensated network.
6. Properties
For the signal properties this traft refers the draft-ietf-ccamp-
wson-iv-info Ch.2.3 with some extension of the parameters.
7. Overview
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Figure 1 shows a set of reference points, for single-channel
connection between transmitters (Tx) and receivers (Rx). Here the
DWDM network elements include an OM and an OD (which are used as a
pair with the opposing element), one or more optical amplifiers and
may also include one or more OADMs.
+-------------------------------------------------+
Ss | DWDM Network | Rs
+--+ | | | \ / | | | +--+
Tx L1--|->| \ / |--|-->Rx L1
+---+ | | | +------+ | | | +--+
+---+ | | | | | | | | +--+
Tx L2--|->| OM |------------>| OADM |-- -------->| OD |--|-->Rx L2
+---+ | | | DWDM | | DWDM | | | +--+
+---+ | | | Link +------+ Link | | | +--+
Tx L3--|->| / | ^ \ |--|-->Rx L3
+---+ | | / | | \ | | +--+
+-----------------------|--|----------------------+
+--+ +--+
| |
Rs v | Ss
+-----+ +-----+
|RxLx | |TxLx |
+-----+ +-----+
Ss = reference point at the DWDM network element tributary output
Rs = reference point at the DWDM network element tributary input
Lx = Lambda x
OM = Optical Mux
OD = Optical Demux
OADM = Optical Add Drop Mux
from Fig. 5.1/G.698.2
Figure 1: External transponder in WDM netwoks
7.1. Optical Parameters Description
The link between the external transponders through a WDM network
media channels are managed at the edges, i.e. at the transmitters
(Tx) and receivers (Rx) attached to the S and R reference points
respectively. The set of parameters that could be managed are
defined by the "application code" notation
The definitions of the optical parameters are provided below to
increase the readability of the document, where the definition is
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ended by (R) the parameter can be retrieve with a read, when (W) it
can be provisioned by a write, (R,W) can be either read or written.
7.1.1. Optical path from point Ss to Rs
The following parameters for the optical path from point S and R are
defined in G.698.2 [ITU.G698.2].
Maximum and minimum (residual) chromatic dispersion:
These parameters define the maximum and minimum value of the
optical path "end to end chromatic dispersion" (in ps/nm) that the
system shall be able to tolerate. (R)
Minimum optical return loss at Ss:
These parameter defines minimum optical return loss (in dB) of the
cable plant at the source reference point (Ss), including any
connectors (R)
Maximum discrete reflectance between Ss and Rs:
Optical reflectance is defined to be the ratio of the reflected
optical power present at a point, to the optical power incident to
that point. Control of reflections is discussed extensively in
ITU-T Rec. G.957 (R)
Maximum differential group delay:
Differential group delay (DGD) is the time difference between the
fractions of a pulse that are transmitted in the two principal
states of polarization of an optical signal. For distances
greater than several kilometres, and assuming random (strong)
polarization mode coupling, DGD in a fibre can be statistically
modelled as having a Maxwellian distribution. (R)
Maximum polarization dependent loss:
The polarization dependent loss (PDL) is the difference (in dB)
between the maximum and minimum values of the channel insertion
loss (or gain) of the black link from point SS to RS due to a
variation of the state of polarization (SOP) over all SOPs. (R)
Maximum inter-channel crosstalk:
Inter-channel crosstalk is defined as the ratio of total power in
all of the disturbing channels to that in the wanted channel,
where the wanted and disturbing channels are at different
wavelengths. The parameter specify the isolation of a link
conforming to the "black link" approach such that under the worst-
case operating conditions the inter-channel crosstalk at any
reference point RS is less than the maximum inter-channel
crosstalk value (R)
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Maximum interferometric crosstalk:
This parameter places a requirement on the isolation of a link
conforming to the "black link" approach such that under the worst
case operating conditions the interferometric crosstalk at any
reference point RS is less than the maximum interferometric
crosstalk value. (R)
Maximum optical path OSNR penalty:
The optical path OSNR penalty is defined as the difference between
the Lowest OSNR at Rs and Lowest OSNR at Ss that meets the BER
requirement (R)
Maximum ripple:
Although is defined in G.698.2 (R).
7.1.2. Rs and Ss Configuration
For the Rs and Ss configuration this draft refers the draft-dharini-
ccamp-dwdm-if-param-yang while for the Rs-Ss extended parameters for
coherent transmission interfaces refer to draft-dharini-ccamp-dwdm-
if-param-yang
7.1.3. Table of Application Codes
For Application Codes configuration this draft refers the draft-
dharini-ccamp-dwdm-if-param-yang
7.2. Use Cases
The use cases are described in draft-ietf-ccamp-dwdm-if-mng-ctrl-fwk
7.3. Optical Parameters for impairment validation in a WDM network
The ietf-opt-parameters-wdm is an augment to the ????. It allows the
user to get and set the application Optical Parameters of a DWDM
network.
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module: ietf-opt-parameters-wdm
+--rw gain-degrade-high? dbm-t
augment /if:interfaces/if:interface:
+--rw optical-transport
| +--rw attenuator-value? attenuator-t
| +--rw offset? decimal64
| +--rw channel-power-ref? decimal64
| +--rw tilt-calibration? tilt-t
+--rw channel-t
| +--rw grid? uint32
| +--rw channel-spacing? uint32
| +--rw identifier? uint32
| +--rw n? uint32
+--rw channel-n-m
+--rw grid? uint32
+--rw channel-spacing? uint32
+--rw n? uint32
+--rw m? uint32
8. Structure of the Yang Module
ietf-opt-parameters-wdm is a top level model for the support of this
feature.
9. Yang Module
The ietf-opt-parameters-wdm is defined as an extension to ietf
interfaces ????.
<CODE BEGINS> file "ietf-opt-parameters-wdm.yang"
module ietf-opt-parameters-wdm {
namespace "urn:ietf:params:xml:ns:yang:ietf-opt-parameters-wdm";
prefix iietf-opt-parameters-wdm;
import ietf-interfaces {
prefix if;
}
import iana-if-type {
prefix ianaift;
}
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organization
"IETF CCAMP
Working Group";
contact
"WG Web: <http://tools.ietf.org/wg/ccamp/>
WG List: <mailto:ccamp@ietf.org>
Editor: Gabriele Galimberti
<mailto:ggalimbe@cisco.com>";
description
"This module contains a collection of YANG definitions for
collecting and configuring Optical Parameters
in Optical Networks and calculate the circuit feasibility.
Copyright (c) 2016 IETF Trust and the persons identified
as authors of the code. All rights reserved.
Redistribution and use in source and binary forms, with or
without modification, is permitted pursuant to, and
subject to the license terms contained in, the Simplified
BSD License set forth in Section 4.c of the IETF Trust's
Legal Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info).";
revision "2016-10-30" {
description
"Initial revision.";
reference
"RFC XXXX: A YANG Data Model for Optical Paramenters
of DWDM Networks
";
}
typedef tilt-t {
type decimal64 {
fraction-digits 2;
range "-5..5";
}
description "Tilt Type";
}
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typedef signal-output-power-t {
type decimal64 {
fraction-digits 2;
range "-10..30";
}
description "
Amplifier Power provisioning ";
}
typedef active-channel-t {
type union {
type uint8 {
range "0..200";
}
}
description "
Number of channels active on a span - and on an amplifier ";
}
typedef dbm-t {
type decimal64 {
fraction-digits 2;
range "-50..-30 | -10..5 | 10000000";
}
description "
Amplifier Power in dBm ";
}
typedef attenuator-t {
type decimal64 {
fraction-digits 2;
range "-15..-5";
}
description "
Attenuation value (attenuator) applied after the Amplifier ";
}
augment "/if:interfaces/if:interface" {
when "if:type = 'ianaift:opticalTransport'" {
description "Specific optical-transport Interface Data";
}
description "Specific optical-transport Interface Data";
container optical-transport {
description "Specific optical-transport Data";
leaf attenuator-value {
type attenuator-t;
description "External attenuator value ";
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}
leaf offset {
type decimal64 {
fraction-digits 2;
range "-30..30";
}
description "Raman and power amplifiers offset";
}
leaf channel-power-ref {
type decimal64 {
fraction-digits 2;
range "-10..15";
}
description "Optical power per channel";
}
leaf tilt-calibration {
type tilt-t;
description "Amplifier Tilt tuning";
}
}
}
grouping opwr-threshold-warning-grp {
description "
Minimum Optical Power threshold
- this is used to rise Power alarm ";
leaf opwr-min {
type dbm-t;
units "dBm";
default -1;
description "Minimum Power Value";
}
leaf opwr-min-clear {
type dbm-t;
units "dBm";
default -1;
description "threshold to clear Minimum Power value Alarm";
}
leaf opwr-max {
type dbm-t;
units "dBm";
default 1;
description "
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Maximum Optical Power threshold
- this is used to rise Power alarm ";
}
}
grouping gain-degrade-alarm-grp {
description "
Low Optical Power gain threshold
- this is used to rise Power alarm ";
leaf gain-degrade-low {
type dbm-t;
units "dBm";
default -1;
description "Low Gain Degrade Value";
}
}
leaf gain-degrade-high {
type dbm-t;
units "dBm";
default 1;
description "
High Optical Power gain threshold
- this is used to rise Power alarm ";
}
}
grouping power-degrade-high-alarm-grp {
description "
High Optical Power gain alarm ";
leaf gain-degrade-high {
type dbm-t;
units "dBm";
default 1;
description "Low Gain Degrade Value";
}
}
grouping power-degrade-low-alarm-grp {
description "
Low Optical Power gain alarm ";
leaf power-degrade-low {
type dbm-t;
units "dBm";
default -1;
description "High Gain Degrade Value";
}
}
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grouping noise {
leaf noise {
type decimal64 {
fraction-digits 2;
}
units "dB";
description "Noise feasibility - reference ITU-T G.680
OSNR added to the signal by the OMS. The noise is intended
per channel and is independent of the number of active
channels in OMS";
}
description "Noise feasibility";
}
grouping noise-sigma {
leaf noise-sigma {
type decimal64 {
fraction-digits 2;
}
units "dB";
description "Noise Sigma feasibility - accuracy of the
OSNR added to
the signal by the OMS";
}
description "Noise Sigma feasibility";
}
grouping chromatic-dispersion {
leaf chromatic-dispersion {
type decimal64 {
fraction-digits 2;
}
units "ps/nm";
description "Chromatic Dispersion (CD) related to the OMS";
}
description "Chromatic Dispersion (CD) feasibility";
}
grouping chromatic-dispersion-slope {
leaf chromatic-dispersion-slope {
type decimal64 {
fraction-digits 2;
}
units "ps/nm^2";
description "Chromatic Dispersion (CD) Slope related to
the OMS";
}
description "Chromatic Dispersion (CD) Slope feasibility";
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}
grouping pmd {
leaf pmd {
type decimal64 {
fraction-digits 2;
}
units "ps";
description "Polarization Mode Dispersion (PMD) relared
to OMS";
}
description "Polarization Mode Dispersion (PMD) feasibility";
}
grouping pdl {
leaf pdl {
type decimal64 {
fraction-digits 2;
}
units "dB";
description "Polarization Dependent Loss (PDL) related to
the OMS";
}
description "Polarization Dependent Loss (PDL) feasibility";
}
grouping drop-power {
leaf drop-power {
type decimal64 {
fraction-digits 2;
}
units "dBm";
description "Drop Power value at the DWDM Transceiver RX
side";
}
description "Drop Power feasibility";
}
grouping drop-power-sigma {
leaf drop-power-sigma {
type decimal64 {
fraction-digits 2;
}
units "db";
description "Drop Power Sigma value at the DWDM Transceiver
RX side";
}
description "Drop Power Sigma feasibility";
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}
grouping ripple {
leaf ripple {
type decimal64 {
fraction-digits 2;
}
units "db";
description "Channel Ripple";
}
description "Channel Ripple";
}
grouping ch-noise-figure {
list ch-noise-figure {
description "Channel signal-spontaneous noise figure";
leaf input-to-output {
type decimal64 {
fraction-digits 2;
}
units "dB";
description "from input port to output port";
}
leaf input-to-drop {
type decimal64 {
fraction-digits 2;
}
units "dB";
description "from input port to drop port";
}
leaf add-to-output {
type decimal64 {
fraction-digits 2;
}
units "dB";
description "from add port to output port";
}
}
description "Channel signal-spontaneous noise figure";
}
grouping dgd {
leaf dgd {
type decimal64 {
fraction-digits 2;
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}
units "db";
description "differential group delay";
}
description "differential group delay";
}
grouping ch-isolation {
list ch-isolation {
description "adjacent and not adjacent channel isolation";
leaf ad-ch-isol {
type decimal64 {
fraction-digits 2;
}
units "dB";
description "adjecent channel isolation";
}
leaf no-ad-ch-iso {
type decimal64 {
fraction-digits 2;
}
units "dB";
description "non adjecent channel isolation";
}
}
description "djacent and not adjacent channel isolation";
}
grouping ch-extinction {
leaf cer {
type decimal64 {
fraction-digits 2;
}
units "db";
description "channel extinction";
}
description "channel extinction";
}
grouping att-coefficient {
leaf att {
type decimal64 {
fraction-digits 2;
}
units "db";
description "Attenuation coefficient (for a fibre segment)";
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}
description "Attenuation coefficient (for a fibre segment)";
}
}
}
<CODE ENDS>
10. Security Considerations
The YANG module defined in this memo is designed to be accessed via
the NETCONF protocol [RFC6241]. he 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 operation and
content.
11. IANA Considerations
This document registers a URI in the IETF XML registry [RFC3688].
Following the format in [RFC3688], the following registration is
requested to be made:
URI: urn:ietf:params:xml:ns:yang:ietf-interfaces:ietf-ext-xponder-
wdm-if
Registrant Contact: The IESG.
XML: N/A, the requested URI is an XML namespace.
This document registers a YANG module in the YANG Module Names
registry [RFC6020].
This document registers a YANG module in the YANG Module Names
registry [RFC6020].
prefix: ietf-ext-xponder-wdm-if reference: RFC XXXX
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12. Acknowledgements
Marco Cardani.
13. Contributors
Dean Bogdanovic
Juniper Networks
Westford
U.S.A.
email deanb@juniper.net
Walid Wakim
Cisco
9501 Technology Blvd
ROSEMONT, ILLINOIS 60018
UNITED STATES
email wwakim@cisco.com
Marco Cardani
Cisco
vis S.Maria Molgora, 46b
20871 - Vimercate
Monza Brianza
Italy
email mcardani@cisco.com
Giovanni Martinelli
Cisco
vis S.Maria Molgora, 46b
20871 - Vimercate
Monza Brianza
Italy
email giomarti@cisco.com
14. References
14.1. Normative References
[RFC2863] McCloghrie, K. and F. Kastenholz, "The Interfaces Group
MIB", RFC 2863, DOI 10.17487/RFC2863, June 2000,
<http://www.rfc-editor.org/info/rfc2863>.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119,
DOI 10.17487/RFC2119, March 1997,
<http://www.rfc-editor.org/info/rfc2119>.
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[RFC2578] McCloghrie, K., Ed., Perkins, D., Ed., and J.
Schoenwaelder, Ed., "Structure of Management Information
Version 2 (SMIv2)", STD 58, RFC 2578,
DOI 10.17487/RFC2578, April 1999,
<http://www.rfc-editor.org/info/rfc2578>.
[RFC2579] McCloghrie, K., Ed., Perkins, D., Ed., and J.
Schoenwaelder, Ed., "Textual Conventions for SMIv2",
STD 58, RFC 2579, DOI 10.17487/RFC2579, April 1999,
<http://www.rfc-editor.org/info/rfc2579>.
[RFC2580] McCloghrie, K., Ed., Perkins, D., Ed., and J.
Schoenwaelder, Ed., "Conformance Statements for SMIv2",
STD 58, RFC 2580, DOI 10.17487/RFC2580, April 1999,
<http://www.rfc-editor.org/info/rfc2580>.
[RFC3591] Lam, H-K., Stewart, M., and A. Huynh, "Definitions of
Managed Objects for the Optical Interface Type", RFC 3591,
DOI 10.17487/RFC3591, September 2003,
<http://www.rfc-editor.org/info/rfc3591>.
[RFC6205] Otani, T., Ed. and D. Li, Ed., "Generalized Labels for
Lambda-Switch-Capable (LSC) Label Switching Routers",
RFC 6205, DOI 10.17487/RFC6205, March 2011,
<http://www.rfc-editor.org/info/rfc6205>.
[ITU.G698.2]
International Telecommunications Union, "Amplified
multichannel dense wavelength division multiplexing
applications with single channel optical interfaces",
ITU-T Recommendation G.698.2, November 2009.
[ITU.G709]
International Telecommunications Union, "Interface for the
Optical Transport Network (OTN)", ITU-T Recommendation
G.709, March 2003.
[ITU.G872]
International Telecommunications Union, "Architecture of
optical transport networks", ITU-T Recommendation G.872,
November 2001.
[ITU.G798]
International Telecommunications Union, "Characteristics
of optical transport network hierarchy equipment
functional blocks", ITU-T Recommendation G.798, October
2010.
G.Galimberti, et al. Expires May 4, 2017 [Page 19]
Internet-Draft draft-galimbe-ccamp-iv-yang-01 October 2016
[ITU.G874]
International Telecommunications Union, "Management
aspects of optical transport network elements",
ITU-T Recommendation G.874, July 2010.
[ITU.G874.1]
International Telecommunications Union, "Optical transport
network (OTN): Protocol-neutral management information
model for the network element view", ITU-T Recommendation
G.874.1, January 2002.
[ITU.G959.1]
International Telecommunications Union, "Optical transport
network physical layer interfaces", ITU-T Recommendation
G.959.1, November 2009.
[ITU.G826]
International Telecommunications Union, "End-to-end error
performance parameters and objectives for international,
constant bit-rate digital paths and connections",
ITU-T Recommendation G.826, November 2009.
[ITU.G8201]
International Telecommunications Union, "Error performance
parameters and objectives for multi-operator international
paths within the Optical Transport Network (OTN)",
ITU-T Recommendation G.8201, April 2011.
[ITU.G694.1]
International Telecommunications Union, "Spectral grids
for WDM applications: DWDM frequency grid",
ITU-T Recommendation G.694.1, June 2002.
[ITU.G7710]
International Telecommunications Union, "Common equipment
management function requirements", ITU-T Recommendation
G.7710, May 2008.
14.2. Informative References
[RFC3410] Case, J., Mundy, R., Partain, D., and B. Stewart,
"Introduction and Applicability Statements for Internet-
Standard Management Framework", RFC 3410,
DOI 10.17487/RFC3410, December 2002,
<http://www.rfc-editor.org/info/rfc3410>.
G.Galimberti, et al. Expires May 4, 2017 [Page 20]
Internet-Draft draft-galimbe-ccamp-iv-yang-01 October 2016
[RFC2629] Rose, M., "Writing I-Ds and RFCs using XML", RFC 2629,
DOI 10.17487/RFC2629, June 1999,
<http://www.rfc-editor.org/info/rfc2629>.
[RFC4181] Heard, C., Ed., "Guidelines for Authors and Reviewers of
MIB Documents", BCP 111, RFC 4181, DOI 10.17487/RFC4181,
September 2005, <http://www.rfc-editor.org/info/rfc4181>.
[I-D.ietf-ccamp-dwdm-if-mng-ctrl-fwk]
Kunze, R., Grammel, G., Beller, D., and G. Galimberti, "A
framework for Management and Control of DWDM optical
interface parameters", draft-ietf-ccamp-dwdm-if-mng-ctrl-
fwk-00 (work in progress), April 2016.
[RFC4054] Strand, J., Ed. and A. Chiu, Ed., "Impairments and Other
Constraints on Optical Layer Routing", RFC 4054,
DOI 10.17487/RFC4054, May 2005,
<http://www.rfc-editor.org/info/rfc4054>.
Appendix A. Change Log
This optional section should be removed before the internet draft is
submitted to the IESG for publication as an RFC.
Note to RFC Editor: please remove this appendix before publication as
an RFC.
Appendix B. Open Issues
Note to RFC Editor: please remove this appendix before publication as
an RFC.
Authors' Addresses
Gabriele Galimberti (editor)
Cisco
Via Santa Maria Molgora, 48 c
20871 - Vimercate
Italy
Phone: +390392091462
Email: ggalimbe@cisco.com
G.Galimberti, et al. Expires May 4, 2017 [Page 21]
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Ruediger Kunze
Deutsche Telekom
Dddd, xx
Berlin
Germany
Phone: +49xxxxxxxxxx
Email: RKunze@telekom.de
Dharini Hiremagalur (editor)
Juniper
1194 N Mathilda Avenue
Sunnyvale - 94089 California
USA
Email: dharinih@juniper.net
Gert Grammel (editor)
Juniper
Oskar-Schlemmer Str. 15
80807 Muenchen
Germany
Phone: +49 1725186386
Email: ggrammel@juniper.net
G.Galimberti, et al. Expires May 4, 2017 [Page 22]