1、 I n t e r n a t i o n a l T e l e c o m m u n i c a t i o n U n i o n ITU-T G.9961 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Amendment 3 (02/2018) SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS Access networks In premises networks Unified high-speed wire-line based hom
2、e networking transceivers Data link layer specification Amendment 3 Recommendation ITU-T G.9961 (2015) Amendment 3 ITU-T G-SERIES RECOMMENDATIONS TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS INTERNATIONAL TELEPHONE CONNECTIONS AND CIRCUITS G.100G.199 GENERAL CHARACTERISTICS COMMON TO
3、 ALL ANALOGUE CARRIER-TRANSMISSION SYSTEMS G.200G.299 INDIVIDUAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE SYSTEMS ON METALLIC LINES G.300G.399 GENERAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE SYSTEMS ON RADIO-RELAY OR SATELLITE LINKS AND INTERCONNECTION WITH METALLIC LINES G.400G
4、.449 COORDINATION OF RADIOTELEPHONY AND LINE TELEPHONY G.450G.499 TRANSMISSION MEDIA AND OPTICAL SYSTEMS CHARACTERISTICS G.600G.699 DIGITAL TERMINAL EQUIPMENTS G.700G.799 DIGITAL NETWORKS G.800G.899 DIGITAL SECTIONS AND DIGITAL LINE SYSTEM G.900G.999 MULTIMEDIA QUALITY OF SERVICE AND PERFORMANCE GEN
5、ERIC AND USER-RELATED ASPECTS G.1000G.1999 TRANSMISSION MEDIA CHARACTERISTICS G.6000G.6999 DATA OVER TRANSPORT GENERIC ASPECTS G.7000G.7999 PACKET OVER TRANSPORT ASPECTS G.8000G.8999 ACCESS NETWORKS G.9000G.9999 Metallic access networks G.9700G.9799 Optical line systems for local and access networks
6、 G.9800G.9899 In premises networks G.9900G.9999 For further details, please refer to the list of ITU-T Recommendations. Rec. ITU-T G.9961 (2015)/Amd.3 (02/2018) i Recommendation ITU-T G.9961 Unified high-speed wireline-based home networking transceivers Data link layer specification Amendment 3 Summ
7、ary Recommendation ITU-T G.9961 belongs to the family of ITU-T G.996x Recommendations. Recommendation ITU-T G.9961 specifies the data link layer (DLL) for wireline-based home networking transceivers capable of operating over premises wiring including inside telephone wiring, coaxial cable, and power
8、-line wiring. It complements the system architecture and physical (PHY) layer specification in Recommendation ITU-T G.9960, and the power spectral density (PSD) specification in Recommendation ITU-T G.9964. Amendment 1 included a new way of generating LPDUs, a piggybacked acknowledgement mechanism a
9、nd an alternative method for flow establishment. Amendment 2 included support for compression of BAT and BMAT messages, and support for indicating PSD capabilities of a node. Corrigendum 3 included corrections to the LCMP messages in clause 8.22.3 and the NDIM interference report indication in claus
10、e 8.14.9.12. Corrigendum 4 included: Revision of the text of clause 8.6.1.1.4.1, Registration request message (ADM_NodeRegistrRequest.req). Revision of the text of clause 8.8.5, Auxiliary information field. Revision of the text of clause 8.8.5.15, Additional domain information sub-field. Amendment 3
11、 includes the addition of new capabilities to the Layer 2 configuration and management protocol (LCMP) and to the neighbouring domain interference mitigation (NDIM) mechanism. It also provides alignment of this Recommendation to new Recommendation ITU-T G.9978 on secure admission in G.hn-based netwo
12、rks. History Edition Recommendation Approval Study Group Unique ID* 1.0 ITU-T G.9961 2010-06-11 15 11.1002/1000/10706 1.1 ITU-T G.9961 (2010) Cor. 1 2011-12-16 15 11.1002/1000/11145 1.2 ITU-T G.9961 (2010) Amd. 1 2012-09-21 15 11.1002/1000/11144 1.3 ITU-T G.9961 (2010) Cor. 2 2013-07-12 15 11.1002/1
13、000/11899 1.4 ITU-T G.9961 (2010) Amd.2 2014-04-04 15 11.1002/1000/12085 2.0 ITU-T G.9961 2014-04-04 15 11.1002/1000/12086 3.0 ITU-T G.9961 2015-07-03 15 11.1002/1000/12401 3.1 ITU-T G.9961 (2015) Cor. 1 2015-11-22 15 11.1002/1000/12535 3.2 ITU-T G.9961 (2015) Amd. 1 2015-11-22 15 11.1002/1000/12536
14、 3.3 ITU-T G.9961 (2015) Cor. 2 2016-04-13 15 11.1002/1000/12822 3.4 ITU-T G.9961 (2015) Amd. 2 2016-07-22 15 11.1002/1000/12823 3.5 ITU-T G.9961 (2015) Cor. 3 2016-11-13 15 11.1002/1000/13115 3.6 ITU-T G.9961 (2015) Cor. 4 2017-08-13 15 11.1002/1000/13339 3.7 ITU-T G.9961 (2015) Amd. 3 2018-02-09 1
15、5 11.1002/1000/13338 * To access the Recommendation, type the URL http:/handle.itu.int/ in the address field of your web browser, followed by the Recommendations unique ID. For example, http:/handle.itu.int/11.1002/1000/11830-en. ii Rec. ITU-T G.9961 (2015)/Amd.3 (02/2018) FOREWORD The International
16、 Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications, information and communication technologies (ICTs). The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating
17、and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T study groups which, in turn, produce
18、 Recommendations on these topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this R
19、ecommendation, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. Compliance with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory provisions (to ensure, e.g., inter
20、operability or applicability) and compliance with the Recommendation is achieved when all of these mandatory provisions are met. The words “shall“ or some other obligatory language such as “must“ and the negative equivalents are used to express requirements. The use of such words does not suggest th
21、at compliance with the Recommendation is required of any party. INTELLECTUAL PROPERTY RIGHTSITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, v
22、alidity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Recommendation development process. As of the date of approval of this Recommendation, ITU had received notice of intellectual property, protected by patents, which may be requi
23、red to implement this Recommendation. However, implementers are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2018 All rights reserved. No part of this publication may be reproduce
24、d, by any means whatsoever, without the prior written permission of ITU. Rec. ITU-T G.9961 (2015)/Amd.3 (02/2018) iii Table of Contents Page 1 Scope . 1 2 References . 2 3 Definitions 2 3.1 Terms defined elsewhere 2 3.2 Terms defined in this Recommendation . 3 4 Abbreviations and acronyms 6 5 Home n
25、etwork architecture and reference models . 10 6 Profiles 10 7 Physical layer specification 10 8 Data link layer specification . 11 8.1 Functional model and frame formats 11 8.2 MAP controlled medium access . 25 8.3 Transmission opportunities (TXOPs) and time slots (TSs) 27 8.4 Control parameters for
26、 APC, LLC, and MAC . 55 8.5 Functions of the endpoint node 59 8.6 Domain master node functional capabilities 75 8.7 Addressing scheme . 175 8.8 Medium access plan (MAP) frame . 176 8.9 Retransmission and acknowledgement protocol 211 8.10 Management and control message format 224 8.11 Channel estimat
27、ion protocol . 237 8.12 Connection management 258 8.13 Message flooding 264 8.14 Operation in the presence of neighbouring domains Distributed domain coordination (NDIM) 264 8.15 Coexistence with alien power-line networks 313 8.16 PHY multicast binding protocol . 313 8.17 DLL multicast stream . 323
28、8.18 Inter-bandplan interoperability . 335 8.19 Node information and capabilities exchange . 337 8.20 Metrics acquisition . 337 8.21 Operation in power saving modes 339 8.22 Layer 2 Configuration and Management Protocol (LCMP) . 346 8.23 Run-length compression of fields of management messages . 352
29、9 Security . 354 9.1 Encryption 354 9.2 Authentication and key management procedures . 360 iv Rec. ITU-T G.9961 (2015)/Amd.3 (02/2018) Page Annex A Application protocol convergence sublayer 383 A.1 Ethernet APC (EAPC) 383 A.2 Other types of APC 386 Annex X Test vectors 388 X.1 CCM encryption . 388 X
30、.2 PAK test vectors . 389 Bibliography. 393 Rec. ITU-T G.9961 (2015)/Amd.3 (02/2018) 1 Recommendation ITU-T G.9961 Unified high-speed wireline-based home networking transceivers Data link layer specification Amendment 3 Editorial note: This is a complete-text publication. Modifications introduced by
31、 this amendment are shown in revision marks relative to Recommendation ITU-T G.9961 (2015) plus its Corrigenda 1 to 4 and Amendments 1 and 2. 1 Scope This Recommendation specifies reference models and functionality for all components of the data link layer (DLL) of home network transceivers designed
32、 for the transmission of data over premises wiring including inside telephone wiring, coaxial cable, and power-line wiring, and combinations of these. This includes support of: contention-free TDMA and contention-based CSMA medium access control; parameter-based and priority-based QoS; security and
33、confidentiality for the home network, including authentication, encryption and key management procedures; hidden nodes and data relaying; internal and external management communications; unicast and multicast retransmission based on selective acknowledgement and frame-based acknowledgement protocols
34、; power-saving mechanisms; bidirectional transmission; neighbouring domain interference mitigation; network management procedures, such as: network initialization procedures, admission control, node authentication and encryption key assignment, connection management, channel estimation, bandwidth re
35、servation and flow control, topology maintenance and routing mechanisms, and recovery procedures after domain master failure. 2 Rec. ITU-T G.9961 (2015)/Amd.3 (02/2018) 2 References The following ITU-T Recommendations and other references contain provisions which, through reference in this text, con
36、stitute provisions of this Recommendation. At the time of publication, the editions indicated were valid. All Recommendations and other references are subject to revision; users of this Recommendation are therefore encouraged to investigate the possibility of applying the most recent edition of the
37、Recommendations and other references listed below. A list of the currently valid ITU-T Recommendations is regularly published. The reference to a document within this Recommendation does not give it, as a stand-alone document, the status of a Recommendation. ITU-T G.9960 Recommendation ITU-T G.9960
38、(2015), Unified high-speed wireline-based home networking transceivers System architecture and physical layer specification. ITU-T G.9963 Recommendation ITU-T G.9963 (2015), Unified high-speed wireline-based home networking transceivers Multiple input/multiple output specification. ITU-T G.9972 Reco
39、mmendation ITU-T G.9972 (2010), Coexistence mechanism for wireline home networking transceivers. ITU-T G.9978 Recommendation ITU-T G.9978 (2018), Secure admission in G.hn network. ITU-T X.1035 Recommendation ITU-T X.1035 (2007), Password-authenticated key exchange (PAK) protocol. IEEE 802.1ad IEEE 8
40、02.1ad-2005, IEEE Standard for Local and metropolitan area networks: Provider Bridges. IEEE 802.1D IEEE 802.1D-2004, IEEE Standard for Local and metropolitan area networks Media Access Control (MAC) Bridges. IEEE 802.1Q IEEE 802.1Q-2005, IEEE Standard for Local and Metropolitan Area Networks Virtual
41、 Bridged Local Area Networks Revision. IEEE 802.3 IEEE 802.3-2008, IEEE Standard for Information technology-Specific requirements Part 3: Carrier Sense Multiple Access with Collision Detection (CSMA/CD) Access Method and Physical Layer Specifications. NIST FIPS 197 FIPS-PUB-197-2002, Specification f
42、or the Advanced Encryption Standard (AES), National Institute of Standards and Technology, November, 2001. NIST 800-38C Special Publication 800-38C, Recommendation for Block Cipher Modes of Operation: the CCM Mode for Authentication and Confidentiality, National Institute of Standards and Technology
43、, May 2004. NIST FIPS 180-3 FIPS PUB 180-3 (2008), Secure Hash Standard (SHS), National Institute of Standards and Technology, October, 2008. 3 Definitions 3.1 Terms defined elsewhere None. Rec. ITU-T G.9961 (2015)/Amd.3 (02/2018) 3 3.2 Terms defined in this Recommendation This Recommendation define
44、s the following terms: 3.2.1 address association table (AAT): A table that associates MAC addresses of the application entities with the DEVICE_ID of the nodes through which these application entities can be reached. 3.2.2 automatic traffic classification: A service that enables a node to establish
45、a data flow automatically. This service is required to support client-based applications that are not capable of generating and transmitting a TSpec prior to data communication. The TSpec in this case is preconfigured in the node. 3.2.3 bit error ratio: A ratio of the number of data bits received in
46、 error to the total number of received data bits. The bit error ratio can be used for the total stream of data bits and for any of its tributary bit streams. 3.2.4 broadcast: A type of communication where a node sends the same frame simultaneously to all other nodes in the home network or in the dom
47、ain. 3.2.5 channel: A transmission path between nodes. One channel is considered to be one transmission path. Logically, a channel is an instance of a communications medium used for the purpose of passing data between two or more nodes. 3.2.6 client: An application entity distinguished in the networ
48、k by its unique address (e.g., MAC address). 3.2.7 connection: A flow between a node and one or more other nodes uniquely identified by the following parameters carried in the PHY-frame header: Source ID (SID); Destination ID (DID); Multicast indication (MI); and Connection identifier (CONNECTION_ID
49、). and the following parameter carried in the LPH of the associated LPDUs: Management queue flag (MQF). 3.2.8 contention-based time slot (CBTS): A time slot for which contention-based access is allowed amongst a group of nodes. 3.2.9 contention-based transmission opportunity (CBTXOP): A shared transmission opportunity for which only contention-based access is defined. 3.2.10 contention-free time slot (CFTS): A time slot with
