1、Dynamic modules Part 6-10: Design guide Intermediate controller for multiple dynamic module systems PD IEC/TR 62343-6-10:2017 BSI Standards Publication WB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06National foreword This Published Document is the UK implementation of IEC/TR 62343-6-10:2017
2、. The UK participation in its preparation was entrusted by Technical Committee GEL/86, Fibre optics, to Subcommittee GEL/86/3, Fibre optic systems and active devices. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport
3、to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017. Published by BSI Standards Limited 2017 ISBN 978 0 580 92875 8 ICS 33.180.01; 33.180.99 Compliance with a British Standard cannot confer immunity from leg
4、al obligations. This Published Document was published under the authority of the Standards Policy and Strategy Committee on 30 April 2017. Amendments/corrigenda issued since publication Date Text affected PUBLISHED DOCUMENT PD IEC/TR 62343-6-10:2017 IEC TR 62343-6-10 Edition 1.0 2017-03 TECHNICAL RE
5、PORT 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 Registered trademark of the International Electrotechnical Commission Warning! Make sure that you obtaine
6、d this publication from an authorized distributor. colour inside PD IEC/TR 62343-6-10:2017 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 Bac
7、kground 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
8、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 informa
9、tion 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 mul
10、tiple 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-degr
11、ee 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 PD IEC/TR 62343-6-10:2017IEC 62343-6-10:2017 IEC 2017 3 INTERNATIONAL ELECTROT
12、ECHNICAL COMMISSION _ DYNAMIC MODULES Part 6-10: Design guide Intermediate controller for multiple dynamic module systems FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National
13、Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly A
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21、y nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the refe
22、renced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. The m
23、ain task of IEC technical committees is to prepare International Standards. However, a technical committee may propose the publication of a technical report when it has collected data of a different kind from that which is normally published as an International Standard, for example “state of the ar
24、t“. 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/14
25、22/RVC PD IEC/TR 62343-6-10:2017 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
26、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 relate
27、d to the specific document. At this date, the document will be reconfirmed, withdrawn, replaced by a revised edition, or amended. A bilingual version of this publication may be issued at a later date. IMPORTANT The colour inside logo on the cover page of this publication indicates that it contains c
28、olours which are considered to be useful for the correct understanding of its contents. Users should therefore print this document using a colour printer. PD IEC/TR 62343-6-10:2017IEC 62343-6-10:2017 IEC 2017 5 INTRODUCTION Software defined networking (SDN) technology is widely recognized as a promi
29、sing 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
30、 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
31、 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 reconfi
32、gurable 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 contro
33、ller 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 sta
34、ndardization of basic requirements of the dynamic optical path networks using the intermediate controller. PD IEC/TR 62343-6-10:2017 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, whic
35、h 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
36、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 u
37、se 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
38、 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 defi
39、ned networking TPA transponder aggregator Tx transmitter Tx/Rx transceiver PD IEC/TR 62343-6-10:2017IEC 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 f
40、or 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 separat
41、e 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/contentionle
42、ss 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 inte
43、rface 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 quick network building without hardware restrictions. 5 Research activities on hig
44、h-performance node systems where intermediate controller plays key role 5.1 Photonic network with OpenFlow 1controller There are several kinds of high-performance node systems for recent high-speed communication systems, such as the internet protocol (IP) router in the field of data communication an
45、d the reconfigurable optical add-drop multiplexing (ROADM) system in transport systems. A high-performance node system itself is supported on an agile control basis. OpenFlow is the first standard communication interface defined between the controlling and forwarding plane of an SDN architecture. Th
46、e OpenFlow controller is a well- organized network control method that enables the realization of flexible network control. The OpenFlow controller, which handles the OpenFlow protocol, was initiated by the Open Networking Foundation that grew out of work at Stanford University. Several vendors are
47、already supporting OpenFlow to be featured in multi-vendor interoperability, scalability and support of diverse environments. As a result, network users can make an independent control environment from network configurations. The technical documents are already available for practical use 1 2 . 5.2
48、Dynamic optical path network with a network controller Dynamic optical path switching systems can provide an end-to-end connection in a network with huge-capacity links. In a network configuration having optical switches mutually connected in a mesh configuration in a transport network, the optical
49、link services are dynamically provisioned in an end-to-end manner. In this case, energy consumption would be much smaller compared to high-end router chains. The National Institute of Advanced Industrial Science and Technology (AIST) proposes to call such networks dynamic optical path networks 2. Of course, this system requires an additional control plane network; therefore, the necessary communication capacity for the control plane network is prepared. In this network, dynam
