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 Corrigendum 4 (08/2017) SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS Access networks In premises networks Unified high-speed wire-line based h
2、ome networking transceivers Data link layer specification Corrigendum 4 Recommendation ITU-T G.9961 (2015) Corrigendum 4 ITU-T G-SERIES RECOMMENDATIONS TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS INTERNATIONAL TELEPHONE CONNECTIONS AND CIRCUITS G.100G.199 GENERAL CHARACTERISTICS COM
3、MON TO 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
4、G.400G.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 PERFORMAN
5、CE GENERIC 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 ne
6、tworks 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)/Cor.4 (08/2017) i Recommendation ITU-T G.9961 Unified high-speed wireline-based home networking transceivers Data link layer specification Corrigendu
7、m 4 Summary 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, a
8、nd power-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 mec
9、hanism and 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 includes corrections to the LCMP messages in clause 8.22.3 and the NDIM interference report indication
10、in clause 8.14.9.12. Corrigendum 4 includes: 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. His
11、tory 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 11.1002/1000/1189
12、9 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 3.3 ITU
13、-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 * To access the Recommendation, type the URL http:/
14、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)/Cor.4 (08/2017) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency
15、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 and tariff questions and issuing Recommendations on them with a view to
16、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 Recommendations on these topics. The approval of ITU-T Recommendations
17、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 Recommendation, the expression “Administration“ is used for conciseness t
18、o 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., interoperability or applicability) and compliance with the Recommendation is
19、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 that compliance with the Recommendation is required of any party. INTELLEC
20、TUAL 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, validity or applicability of claimed Intellectual Property Rights, whethe
21、r 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 required to implement this Recommendation. However, implementers are cautione
22、d 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 2017 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU.
23、 Rec. ITU-T G.9961 (2015)/Cor.4 (08/2017) 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 network architecture and reference models . 10 6 Profiles 10 7 Physical l
24、ayer 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 APC, LLC, and MAC . 55 8.5 Functions of the endpoint node 59 8.6 Domain
25、 master node functional capabilities 75 8.7 Addressing scheme . 174 8.8 Medium access plan (MAP) frame . 175 8.9 Retransmission and acknowledgement protocol 207 8.10 Management and control message format 220 8.11 Channel estimation protocol . 232 8.12 Connection management 253 8.13 Message flooding
26、259 8.14 Operation in the presence of neighbouring domains 259 8.15 Coexistence with alien power-line networks 308 8.16 PHY multicast binding protocol . 308 8.17 DLL multicast stream . 318 8.18 Inter-bandplan interoperability . 330 8.19 Node information and capabilities exchange . 332 8.20 Metrics a
27、cquisition . 332 8.21 Operation in power saving modes 334 8.22 Layer 2 Configuration and Management Protocol (LCMP) . 341 8.23 Run-length compression of fields of management messages . 347 9 Security . 349 9.1 Encryption 349 9.2 Authentication and key management procedures . 355 iv Rec. ITU-T G.9961
28、 (2015)/Cor.4 (08/2017) Page Annex A Application protocol convergence sublayer 378 A.1 Ethernet APC (EAPC) 378 A.2 Other types of APC 381 Annex X Test vectors 383 X.1 CCM encryption . 383 X.2 PAK test vectors . 384 Bibliography. 388 Rec. ITU-T G.9961 (2015)/Cor.4 (08/2017) 1 Recommendation ITU-T G.9
29、961 Unified high-speed wireline-based home networking transceivers Data link layer specification Corrigendum 3 Editorial note: This is a complete-text publication. Modifications introduced by this corrigendum are shown in revision marks relative to Recommendation ITU-T G.9961 (2015) plus its Corrige
30、ndum 1, Corrigendum 2 Corrigendum 3, Amendment 1 and Amendment 2. 1 Scope This Recommendation specifies reference models and functionality for all components of the data link layer (DLL) of home network transceivers designed for the transmission of data over premises wiring including inside telephon
31、e 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 confidentiality for the home network, including authentication, encryption a
32、nd 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; power-saving mechanisms; bidirectional transmission; neighbouring domain i
33、nterference mitigation; network management procedures, such as: network initialization procedures, admission control, node authentication and encryption key assignment, connection management, channel estimation, bandwidth reservation and flow control, topology maintenance and routing mechanisms, and
34、 recovery procedures after domain master failure. 2 Rec. ITU-T G.9961 (2015)/Cor.4 (08/2017) 2 References The following ITU-T Recommendations and other references contain provisions which, through reference in this text, constitute provisions of this Recommendation. At the time of publication, the e
35、ditions 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 Recommendations and other references listed below. A list of the currently v
36、alid 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 (2015), Unified high-speed wireline-based home networking transceivers Syste
37、m 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 Recommendation ITU-T G.9972 (2010), Coexistence mechanism for wireline home netw
38、orking transceivers. ITU-T X.1035 Recommendation ITU-T X.1035 (2007), Password-authenticated key exchange (PAK) protocol. IEEE 802.1ad IEEE 802.1ad-2005, IEEE Standard for Local and metropolitan area networks: Provider Bridges. IEEE 802.1D IEEE 802.1D-2004, IEEE Standard for Local and metropolitan a
39、rea networks Media Access Control (MAC) Bridges. IEEE 802.1Q IEEE 802.1Q-2005, IEEE Standard for Local and Metropolitan Area Networks Virtual Bridged Local Area Networks Revision. IEEE 802.3 IEEE 802.3-2008, IEEE Standard for Information technology-Specific requirements Part 3: Carrier Sense Multipl
40、e Access with Collision Detection (CSMA/CD) Access Method and Physical Layer Specifications. NIST FIPS 197 FIPS-PUB-197-2002, Specification for the Advanced Encryption Standard (AES), National Institute of Standards and Technology, November, 2001. NIST 800-38C Special Publication 800-38C, Recommenda
41、tion for Block Cipher Modes of Operation: the CCM Mode for Authentication and Confidentiality, National Institute of Standards and Technology, 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
42、 Terms defined elsewhere None. Rec. ITU-T G.9961 (2015)/Cor.4 (08/2017) 3 3.2 Terms defined in this Recommendation This Recommendation defines 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
43、 through which these application entities can be reached. 3.2.2 automatic traffic classification: A service that enables a node to establish 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 d
44、ata 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 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
45、.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 domain. 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 communic
46、ations medium used for the purpose of passing data between two or more nodes. 3.2.6 client: An application entity distinguished in the network 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 parameter
47、s carried in the PHY-frame header: Source ID (SID); Destination ID (DID); Multicast indication (MI); and Connection identifier (CONNECTION_ID). 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 fo
48、r 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 within a shared transmission opport
49、unity assigned to a single node. 3.2.11 contention-free transmission opportunity (CFTXOP): A transmission opportunity allocated to a single node. 3.2.12 data: Bits or bytes transported over the medium or across a reference point that individually convey information. Data includes both user (application) data and any other auxiliary information (overhead, including control, management, etc.). Data does not include bits or bytes t
