Dynamic modules - Part 6-10: Design guide - Intermediate controller for multiple dynamic module systems

IEC TR 62343-6-10:2017(E) which is a Technical Report, discusses the rationale, conceptual definition, and minimum list of functions for an intermediate controller that delivers a dynamic control signal to multiple dynamic modules. These modules are included in an optical-switch-based network node, according to the upper layer controller of software-defined optical networking.

General Information

Status
Published
Publication Date
21-Mar-2017
Current Stage
PPUB - Publication issued
Start Date
22-Mar-2017
Completion Date
22-Mar-2017
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IEC TR 62343-6-10
Edition 1.0 2017-03
TECHNICAL
REPORT
colour
inside
Dynamic modules –
Part 6-10: Design guide – Intermediate controller for multiple dynamic module
systems
IEC TR 62343-6-10:2017-03(en)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC TR 62343-6-10
Edition 1.0 2017-03
TECHNICAL
REPORT
colour
inside
Dynamic modules –
Part 6-10: Design guide – Intermediate controller for multiple dynamic module
systems
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.180.01, 33.180.99 ISBN 978-2-8322-4127-1

Warning! Make sure that you obtained this publication from an authorized distributor.

® Registered trademark of the International Electrotechnical Commission
---------------------- Page: 3 ----------------------
– 2 – IEC 62343-6-10:2017 © IEC 2017
CONTENTS

FOREWORD ........................................................................................................................... 3

INTRODUCTION ..................................................................................................................... 5

1 Scope .............................................................................................................................. 6

2 Normative references ...................................................................................................... 6

3 Terms, definitions and abbreviated terms ........................................................................ 6

3.1 Terms and definitions .............................................................................................. 6

3.2 Abbreviated terms ................................................................................................... 6

4 Background of the software defined networking and its control plane for optical

nodes .............................................................................................................................. 7

5 Research activities on high-performance node systems where intermediate

controller plays key role ................................................................................................... 7

5.1 Photonic network with OpenFlow® controller .......................................................... 7

5.2 Dynamic optical path network with a network controller ........................................... 7

5.3 Control interface of the Photonic Layer-2 ................................................................ 8

6 Intermediate controller for multiple dynamic module systems ........................................... 8

6.1 Description of the controller .................................................................................... 8

6.1.1 Controller of multiple dynamic modules for a network node .............................. 8

6.1.2 Structure of the intermediate controller ............................................................ 9

6.2 Functions .............................................................................................................. 10

6.3 Shared information between the control interface and the network control

plane .................................................................................................................... 11

7 Example of multi-degree ROADM systems ..................................................................... 12

8 Conclusion .................................................................................................................... 14

Bibliography .......................................................................................................................... 15

Figure 1 – Conceptual block of the control interface for multiple dynamic modules and

network devices ...................................................................................................................... 8

Figure 2 – Basic block of the control interface for multiple dynamic modules.......................... 9

Figure 3 – Difference between connection information and configuration information ........... 10

Figure 4 – Function coverage of the intermediate controller .................................................. 11

Figure 5 – Example of a multiple dynamic module system ..................................................... 12

Figure 6 – Example of 4-degree ROADM node architecture .................................................. 13

Figure 7 – 3-degree ROADM node with colourless, non-directional add/drop ports ............... 13

Figure 8 – Compact PLC-based transponder aggregator for colourless and

directionless ROADM ............................................................................................................ 14

Table 1 – Shared information in the intermediate controller ................................................... 12

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IEC 62343-6-10:2017 © IEC 2017 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
DYNAMIC MODULES –
Part 6-10: Design guide – Intermediate controller
for multiple dynamic module systems
FOREWORD

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The main task of IEC technical committees is to prepare International Standards. However, a

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example "state of the art".

IEC TR 62343-6-10, which is a technical report, has been prepared by subcommittee 86C:

Fibre optic systems and active devices, of IEC technical committee TC 86: Fibre optics.

The text of this technical report is based on the following documents:
Enquiry draft Report on voting
86C/1381/DTR 86C/1422/RVC
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– 4 – IEC 62343-6-10:2017 © IEC 2017

Full information on the voting for the approval of this technical report can be found in the

report on voting indicated in the above table.

This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

A list of all parts in the IEC 62343 series, published under the general title Dynamic modules,

can be found on the IEC website.

The committee has decided that the contents of this document will remain unchanged until the

stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to

the specific document. At this date, the document will be
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• withdrawn,
• replaced by a revised edition, or
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IEC 62343-6-10:2017 © IEC 2017 – 5 –
INTRODUCTION

Software defined networking (SDN) technology is widely recognized as a promising solution

for flexible and efficient provisioning of networks by virtualizing their infrastructures, which

results in cost-effective realization of high capacity, low energy consumption and even low

latency. SDN technology will remain highly influential over global industries, societies, and the

environment for many years to come.

Optical fibre communication technology has offered sufficient transport capacity with a fixed

physical topology. However, recent technological progress in optical networking enables

physical reconfiguration of optical paths by controlling multiple dynamic modules such as

wavelength division multiplexing (WDM) devices and switching devices. Here, the key is to

have an intermediate controller that controls and maintains the multiple dynamic modules in

an integrated fashion, according to the upper layer controller of the SDN.

In order to realize such a reconfigurable and/or dynamically switchable optical network

infrastructures at a hardware level in a cost-effective, reliable, scalable and low-carbon

manner, it is important to initiate, in a timely manner and to a wide extent, conceptual and

technical discussions, particularly on the intermediate controller for future standardization.

It is very important for industries to identify requirements for network architecture and

devices/components in a timely manner, and to improve the technology development and

investment efficiencies.

The objective of this part of IEC 62343 is to contribute to the standardization of basic

requirements of the dynamic optical path networks using the intermediate controller.

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– 6 – IEC 62343-6-10:2017 © IEC 2017
DYNAMIC MODULES –
Part 6-10: Design guide – Intermediate controller
for multiple dynamic module systems
1 Scope

This part of IEC 62343, which is a Technical Report, discusses the rationale, conceptual

definition, and minimum list of functions for an intermediate controller that delivers a dynamic

control signal to multiple dynamic modules. These modules are included in an optical-switch-

based network node, according to the upper layer controller of software-defined optical

networking.
2 Normative references
There are no normative references in this document.
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
No terms and definitions are listed in this document.

ISO and IEC maintain terminological databases for use in standardization at the following

addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.2 Abbreviated terms
AWG arrayed waveguide grating

C/D/C-ROADM colourless/directionless/contentionless reconfigurable optical add-drop

multiplexing
I/F interface
IP internet protocol
mI/F module side interface
MCOS multicast optical switch
OCM optical channel monitor
ODU optical data unit
OXC optical cross connect
PLC planar lightwave circuit
ROADM reconfigurable optical add-drop multiplexing
Rx receiver
SDN software defined networking
TPA transponder aggregator
Tx transmitter
Tx/Rx transceiver
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IEC 62343-6-10:2017 © IEC 2017 – 7 –
WDM wavelength division multiplexing
WSS wavelength selective switch
WXC wavelength cross connect
4 Background of the software defined networking and its control plane for
optical nodes

Optical networks are evolving from static link services to flexible link services to provide

future dynamic transport services. Software defined networking (SDN) is one of the network

architectures that enable flexible and dynamic network control. The basic idea of SDN is to

separate the control plane from the data plane, allowing consolidation of hardware

infrastructure to save the overhead associated with per-service deployment of a closed set of

resources such as computation, storage, and network. For optically switched networks such

as colourless/directionless/contentionless reconfigurable optical add-drop multiplexing

(C/D/C-ROADM) based mesh networks to be dynamically controlled through SDN, the control

scheme should be designed to be as simple as possible, as they associate with complex

configurations of multiple dynamic modules. In particular, common control interface is a key

for realizing the control plane for such an optically switched node; thus, these interfaces

should be properly defined from not only the software, but also the hardware aspect. Such an

interface enables qu
...

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