1、 ETSI TS 103 443-3 V1.1.1 (2016-08) Integrated broadband cable telecommunication networks (CABLE); IPv6 Transition Technology Engineering and Operational Aspects; Part 3: DS-Lite TECHNICAL SPECIFICATION ETSI ETSI TS 103 443-3 V1.1.1 (2016-08)2 Reference DTS/CABLE-00018-3 Keywords cable, HFC, IPv6 ET
2、SI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice The present document can be downloaded from: http
3、:/www.etsi.org/standards-search The present document may be made available in electronic versions and/or in print. The content of any electronic and/or print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any existing or perceived d
4、ifference in contents between such versions and/or in print, the only prevailing document is the print of the Portable Document Format (PDF) version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or
5、 change of status. Information on the current status of this and other ETSI documents is available at https:/portal.etsi.org/TB/ETSIDeliverableStatus.aspx If you find errors in the present document, please send your comment to one of the following services: https:/portal.etsi.org/People/CommiteeSupp
6、ortStaff.aspx Copyright Notification No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm except as authorized by written permission of ETSI. The content of the PDF version shall not be modified without the written authoriz
7、ation of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2016. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM and LTE ar
8、e Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TS 103 443-3 V1.1.1 (2016-08)3 Contents Intellectual Property Rights 6g3Foreword . 6g3Modal verbs termi
9、nology 6g3Introduction 6g31 Scope 8g32 References 8g32.1 Normative references . 8g32.2 Informative references 11g33 Definitions and abbreviations . 11g33.1 Definitions 11g33.2 Abbreviations . 11g34 Considerations 14g34.1 Background 14g34.2 General Overview. 14g35 Gap Analysis 15g36 Domain Functional
10、ity . 16g36.1 End to End Network Domains 16g36.2 DS-Lite Domain Topologies 17g36.3 CPE Home Network Domain . 19g36.4 Access Network Domain 20g36.5 Core Network Domain . 20g36.6 Data Centre Network Domain 21g36.7 DMZ Service Domain 21g36.8 Transit and Peering Service Domain 21g36.9 Management and Mon
11、itoring Domain . 21g36.9.1 General Considerations. 21g36.9.2 OSS . 21g36.9.3 B4 Remote Management 22g36.9.4 IPv4 Connectivity Checks 22g36.9.5 B4 Provisioning 22g36.9.6 AFTR Provisioning . 22g36.10 Security Domain . 23g37 Engineering Requirements . 23g37.1 Key Requirements 23g37.1.1 AFTR 23g37.1.2 C
12、PE Cable Gateway Device . 23g37.2 DS-Lite Technology Feature Requirements . 24g37.3 Detailed AFTR Engineering Requirements 28g37.3.1 AFTR Hardware Feature/Topology 28g37.3.1.1 Role/Location 28g37.3.1.2 Type 28g37.3.1.3 Memory . 28g37.3.1.4 Integrated forwarding and AFTR function 28g37.3.1.5 Forwardi
13、ng Architecture . 28g37.3.2 AFTR DS-Lite specific engineering requirements . 29g37.3.2.1 Tunnel Identifiers/Client-Customer ID . 29g37.3.2.2 MTU Sizing/TCP MSS . 29g37.3.2.3 Load balancing 29g37.3.2.4 IPv4 Private Subnet Segmentation 29g37.3.2.5 Non-ALG Deployment 29g37.3.2.6 Traffic Prioritization
14、29g37.3.2.7 Data retention (DR) . 29g3ETSI ETSI TS 103 443-3 V1.1.1 (2016-08)4 7.3.2.8 UPnP/Port forwarding/PCP . 29g37.3.3 AFTR General software engineering requirements 30g37.3.3.1 Topology dependency . 30g37.3.3.2 Integrated topology engineering requirements 30g37.3.3.3 Hairpin topology engineeri
15、ng requirements 31g37.3.4 Scalability . 33g37.3.5 AFTR Performance . 33g37.3.5.1 General considerations 33g37.3.5.2 Throughput interfaces . 33g37.3.5.3 Node latency . 33g37.3.5.4 Flow throughput 33g37.3.5.5 Convergence 33g37.3.6 AFTR Application proxy 33g38 General Considerations 35g38.1 Hardware Co
16、nsiderations . 35g38.2 DS-Lite Scalability . 35g38.3 PCP Considerations 36g38.4 NDP Considerations . 36g39 Support Systems . 36g39.1 Testing 36g310 CPE Specifications for IPv6 . 38g310.1 Summary 38g310.1.1 Reference Architecture . 38g310.1.2 CPE Requirements 39g310.1.2.1 General 39g310.1.2.2 Cable M
17、odem 39g310.1.2.2.1 DOCSIS 2.0 + IPv6 Cable Modem 39g310.1.2.2.2 DOCSIS 3.0 Cable Modem . 39g310.1.2.3 eRouter/Home Gateway 40g310.1.2.4 LAN-side Interface 40g310.1.2.5 Software Features 40g310.1.2.5.1 Static Configuration . 40g310.1.2.5.2 Tunnel Bindings 40g310.1.2.5.3 P2P 41g310.1.2.5.4 Gi-DS-Lite
18、 . 41g310.1.2.5.5 Tunnel Identifiers/Client-Customer ID (flow label identifier) 41g310.1.2.5.6 MTU Sizing/TCP MSS 41g310.1.2.5.7 Non-ALG Deployment 41g310.1.2.5.8 DNS over IPv6 41g310.1.2.5.9 Port Forwarding . 41g310.1.2.5.10 SI . 41g310.1.2.5.11 DHCPv4 Internal . 41g310.1.2.5.12 DHCPv6 - PD Interna
19、l and external 41g310.1.2.5.13 Non-ALG Deployment 42g310.1.2.5.14 Customer Management (Access and Reporting) . 42g310.1.2.5.15 Cable Operators Corporate Management (IPv6 or IPv4) 42g310.1.2.5.16 Port Forwarding . 42g310.1.2.5.17 UPnP 42g310.1.2.5.18 Firewall 42g310.1.2.5.19 Standard Hardware and Sof
20、tware Features for the CPE 42g310.1.2.6 Performance 43g310.1.2.6.1 Forwarding 43g310.1.2.6.2 Node latency 43g310.1.2.6.3 Max sessions 43g310.1.2.7 DS-Lite 43g310.1.2.7.1 General 43g310.1.2.7.2 WAN requirements: . 43g310.1.2.7.3 Security Considerations. 44g310.1.2.7.4 Security requirements: . 44g310.
21、2 DHCP . 44g3ETSI ETSI TS 103 443-3 V1.1.1 (2016-08)5 10.2.1 DHCPv6 - PD Internal and external . 44g310.3 DNS over IPv6 . 44g310.4 Client Reactivity . 44g310.5 Monitoring and Logging 44g310.6 Resource Management . 45g310.7 Placement of function on LSN or CPE . 45g310.8 Security 47g310.8.1 SNMP . 47g
22、310.8.1.1 SNMP Management 47g3History 48g3ETSI ETSI TS 103 443-3 V1.1.1 (2016-08)6 Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI m
23、embers and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (https:/ipr.e
24、tsi.org/). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to
25、the present document. Foreword This Technical Specification (TS) has been produced by ETSI Technical Committee TC CABLE. The present document is part 3 of a multi-part deliverable. Full details of the entire series can be found in part 1 34. Modal verbs terminology In the present document “shall“, “
26、shall not“, “should“, “should not“, “may“, “need not“, “will“, “will not“, “can“ and “cannot“ are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in di
27、rect citation. Introduction Considering the depletion of IPv4 addresses, transition to IPv6 is required in order to enable continued growth of the customer base connected to cable networks and ensure service continuity for existing and new customers. High-quality connectivity to all kinds of IP-base
28、d services and networks is essential in todays business and private life. The present document accommodates an urgent need in the industry to implement and integrate the IPv6 transition technologies as specified by ETSI TS 101 569-1 1 into their cable networks. The choice of the technology implement
29、ed depends on factors such as the business needs, current deployed architectures and plans for cost effectively transition from IPv4 to IPv6. Current global IPv4 address space was projected to be depleted around the middle of 2012; depletion for the operator was estimated around end 2012. As part of
30、 the resulting roll-out of IPv6 in the operators network, specific measures had to be taken to allow a smooth transition and coexistence between IPv4 and IPv6. ETSI developed requirements to address transition from IPv4 to IPv6 specifying six transition technologies as given by ETSI TS 101 569-1 1 t
31、hat were at the time considered to be the most appropriate to assist cable operators to transition there cable networks to IPv6. Since then the industry has acquired more experience with the technology options settling in the main for DS-Lite across the cable network market and NAT64 IPv6 transition
32、 technologies across the mobile market. The objective of the present document is to define the operational and engineering requirements to enable engineers to implement a seamless transition of the cable networks to IPv6 with the application of the DS-Lite transition technology. The present document
33、 is the final part of a companion of ETSI standards developed in 4 phases to provide the cable sector in particular cable operators engineering and operational staff a standardized approach when integrating one of the five IPv6 transition technologies, NAT64, DS-Lite, 464XLAT, 6RD and MAP-E. ETSI ET
34、SI TS 103 443-3 V1.1.1 (2016-08)7 The first phase assessed the different IPv6 transition technology options being defined by industry with recommendation for the most appropriate with consideration of current network architectures, ensuring adequate scale and a cost effective transition approach fro
35、m IPv4 to IPv6 as the IPv4 addresses deplete. The objective being to examine the pros and cons of the IPv6 transition technologies and recommend the most cost effective solution that would enable the cable operators to minimize the cost of upgrades to their existing network plant whilst maintain con
36、tinuity of services to their present and new added customers. The details of the study are given by ETSI TR 101 569 i.5. In the second phase an ETSI technical specification was developed to specify technical requirements for six transition technologies that industry were considering for use by Cable
37、 Operators depending on the current state of their deployed cable network architecture, service model requirements and their IPv6 transition strategy as the IPv4 addresses depleted. These six IPv6 transition technologies are specified by ETSI TS 101 569-1 1, covering NAT64, DS-Lite, 6RD, NAT44, 464X
38、LAT and MAP-E. In the third phase ETSI developed a series of conformance test specifications to enable the compliance verification of the five IPv6 transition technologies, NAT64, DS-Lite, 464XLAT, 6RD and MAP-E that were specified during phase 2 standardization. The conformance tests are developed
39、against the requirements given by the ETSI TS 101 569-1 1. The series of conformance tests developed for each of the four transition technologies, are as given by ETSI TS 103 238 parts 1 2 to 3 4 respectively for NAT64; ETSI TS 103 239 parts 1 5 to 3 7 respectively for MAP-E; ETSI TS 103 241 parts 1
40、 8 to 3 10 respectively for DS-Lite; ETSI TS 103 242 parts 1 11 to 3 13 respectively for XLAT and ETSI TS 103 243 parts 1 14 to 3 16 respectively for 6RD. Phase 4 is the present project phase for development of technical specifications covering the operational and engineering requirements with the p
41、resent document being part 3 of a multi-part series covering the IPv6 transition technology DS-Lite. DOCSISis a registered Trade Mark of Cable Television Laboratories, Inc., and is used in the present document with permission. ETSI ETSI TS 103 443-3 V1.1.1 (2016-08)8 1 Scope The present document pre
42、sents the engineering and operational requirements for the application of the IPv6 transition technology DS-Lite as defined by ETSI TS 101 569-1 1 (IPv6 Transition Requirements) implemented within an integrated broadband cable network end to end across its network domains. The present document is pa
43、rt 3 of a multi-part series and presents the operational aspects of the IPv6 transition technology DS-Lite across the cable network domains. Only those elements of the network that have to be engineered to operate the IPv6 transition technology DS-Lite are presented. Descriptions and interface detai
44、ls of network elements that do not change are already addressed by the relevant equipment cable standards and therefore this information is not included in the present document. The conformity of the DS-Lite implementation is relevant when assessing its implementation and operational requirements ac
45、ross the cable network to ensure the implementation is correctly engineered to conform to the requirements of the base standard ETSI TS 101 569-1 1. These conformance tests are not specified in the present document as they are already specified by ETSI TS 103 241 parts 1 to 3 8, 9 and 10. The operat
46、ional aspects for the IPv6 transition technology DS-Lite are considered when engineered end to end across the cable network domains: CPE Home Networking Domain Access Network Domain Core Network Domain Data Center Domain DMZ Service Domain Transit and Peering Domain Management and Monitoring Domain
47、Security Domain The present document specifies the requirements to be considered when the defined IPv6 transition technology DS-Lite is engineered across the cable network domains. 2 References 2.1 Normative references References are either specific (identified by date of publication and/or edition
48、number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. Referenced documents which are not found to be publicly available in the expected locatio
49、n might be found at http:/docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee their long term validity. The following referenced documents are necessary for the application of the present document. 1 ETSI TS 101 569-1: “Integrated Broadband Cable Telecommunication Networks (CABLE); Cable Network Transition to IPv6 Part 1: IPv6 Transition Requirements“. ETSI ETSI TS 103 443-3 V1.1.1 (2016-08)9 2 ETSI TS 103 238-1: “Integrated b
