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ETSI EN 302 636-6-1-2014 Intelligent Transport Systems (ITS) Vehicular Communications GeoNetworking Part 6 Internet Integration Sub-part 1 Transmission of IPv6 Packets over GeoNetw_1.pdf

1、 ETSI EN 302 636-6-1 V1.2.1 (2014-05) Intelligent Transport Systems (ITS); Vehicular Communications; GeoNetworking; Part 6: Internet Integration; Sub-part 1: Transmission of IPv6 Packets over GeoNetworking Protocols European Standard ETSI ETSI EN 302 636-6-1 V1.2.1 (2014-05)2Reference REN/ITS-003003

2、7 Keywords addressing, Autonomic Networking, IPv6, ITS, network, protocol ETSI 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)

3、N 7803/88 Important notice The present document can be downloaded from: http:/www.etsi.org 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 au

4、thorization of ETSI. In case of any existing or perceived difference 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 shou

5、ld be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http:/portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following ser

6、vices: http:/portal.etsi.org/chaircor/ETSI_support.asp 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

7、 be modified without the written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2014. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are Trade Marks of ETSI registered for the

8、benefit of its Members. 3GPPTM and LTE are 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 EN 302 636-6-1 V1.2.1 (2014-05)3Contents Intellectual Property

9、 Rights 6g3Foreword . 6g3Introduction 6g31 Scope 8g32 References 9g32.1 Normative references . 9g32.2 Informative references 10g33 Definitions, symbols and abbreviations . 12g33.1 Definitions 12g33.2 Symbols 12g33.3 Abbreviations . 12g34 GN6ASL in the ITS station architecture 13g35 IPv6 link models

10、and interfaces . 14g35.1 Rationale. 14g35.2 Properties of supported IPv6 link models . 15g35.2.1 Geographical virtual links . 15g35.2.1.1 Static geographical virtual links 15g35.2.1.2 Dynamic geographical virtual links 15g35.2.2 Topological virtual links . 16g35.2.3 Virtual links indexing . 16g35.3

11、Properties of virtual interfaces 16g35.3.1 Number and types of virtual interfaces . 16g35.3.2 Usage of specific virtual interfaces . 17g35.3.2.1 Ethernet V2.0/IEEE 802.3 LAN virtual interfaces 17g36 Bridging support . 18g36.1 Rationale. 18g36.2 Required properties 20g36.3 Media-dependent implementat

12、ions 20g36.3.1 IEEE 802 integration service 20g37 IPv6/GeoNetworking interface service specification . 20g38 Encapsulation characteristics . 21g38.1 Maximum transmission unit . 21g38.2 Packet delivery . 21g38.2.1 Outbound traffic 21g38.2.2 Inbound traffic 22g38.3 Frame format 24g39 IPv6 multicast an

13、d anycast support 24g39.1 Overview 24g39.2 IPv6 multicast support 25g39.2.1 IPv6 link-local multicast . 25g39.2.2 IPv6 wider-scope multicast. 25g39.2.3 Geocasting of IPv6 multicast traffic . 26g39.3 IPv6 anycast support 26g39.4 Geographic IPv6 anycast support . 26g310 IPv6 neighbor discovery support

14、 27g310.1 On-link determination 27g310.2 Address configuration 27g310.2.1 Stateless address autoconfiguration 27g310.2.2 Stateful address configuration. 28g310.2.3 Manual address configuration . 28g3ETSI ETSI EN 302 636-6-1 V1.2.1 (2014-05)410.3 Address resolution 28g310.3.1 Non-ND-based address res

15、olution 28g310.3.2 ND-based address resolution 29g310.4 Neighbor unreachability detection . 29g310.5 Protocol constants. 29g311 Support for pseudonym change 30g311.1 Rationale. 30g311.2 Required operations 30g3Annex A (normative): ASN.1 encoding of the GN6ASL MIB 31g3A.1 Modules 31g3A.1.1 ITSGN6ASL-

16、MIB 31g3Annex B (normative): MIB attributes 35g3B.1 ITSGN6ASL-MIB attributes values . 35g3Annex C (informative): IPv6/GeoNetworking data SAP 36g3C.1 Basic data SAP (GN6_SAP) 36g3C.1.1 Overview 36g3C.1.2 Service primitives . 36g3C.1.2.1 GN6-UNITDATA.request 36g3C.1.2.1.1 Semantics 36g3C.1.2.1.2 When

17、generated . 36g3C.1.2.1.3 Effect on receipt 36g3C.1.2.2 GN6-UNITDATA.indication 37g3C.1.2.2.1 Semantics 37g3C.1.2.2.2 When generated . 37g3C.1.2.2.3 Effect on receipt 37g3C.2 Experimental extended data SAP (EGN6_SAP) 37g3C.2.1 Overview 37g3C.2.2 Service primitives . 38g3C.2.2.1 EGN6-UNITDATA.request

18、 38g3C.2.2.1.1 Semantics 38g3C.2.2.1.2 When generated . 38g3C.2.2.1.3 Effect on receipt 38g3C.2.2.2 EGN6-UNITDATA.indication . 39g3C.2.2.2.1 Semantics 39g3C.2.2.2.2 When generated . 39g3C.2.2.2.3 Effect on receipt 39g3Annex D (informative): Geographic IPv6 multicast support (experimental) . 40g3D.1

19、Overview 40g3D.2 Pre-defined geographical IPv6 multicast groups 40g3D.3 Other studied mechanisms 40g3Annex E (informative): Implementation examples . 42g3E.1 Virtual links and interfaces . 42g3E.2 Packet delivery with Ethernet V2.0/IEEE 802.3 LAN virtual interfaces . 42g3E.2.1 Outbound traffic . 42g

20、3E.2.2 Inbound traffic 43g3E.3 GeoNet project implementations results 43g3Annex F (informative): Support for Network Mobility Basic Support . 44g3F.1 Purpose of this annex . 44g3ETSI ETSI EN 302 636-6-1 V1.2.1 (2014-05)5F.2 Mode of operation via GN6ASL 44g3F.3 Sub-optimal routing issues . 44g3Annex

21、G (informative): Security and privacy considerations 45g3G.1 Recommendations for security mechanisms 45g3G.2 Recommendations for privacy-protecting deployment 45g3Annex H (informative): Bibliography . 46g3History 47g3ETSI ETSI EN 302 636-6-1 V1.2.1 (2014-05)6Intellectual Property Rights IPRs essenti

22、al 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 members and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially

23、 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 (http:/ipr.etsi.org). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarant

24、ee 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 the present document. Foreword This European Standard (EN) has been produced by ETSI Technical Committee Intelligent Transport

25、 Systems (ITS). The present document is part 6, sub-part 1 of a multi-part deliverable. Full details of the entire series can be found in ETSI EN 302 636-1 3. National transposition dates Date of adoption of this EN: 3 February 2014 Date of latest announcement of this EN (doa): 31 May 2014 Date of l

26、atest publication of new National Standard or endorsement of this EN (dop/e): 30 November 2014 Date of withdrawal of any conflicting National Standard (dow): 30 November 2015 Introduction The ETSI GeoNetworking protocol as defined in ETSI EN 302 636-4-1 7 and given in ETSI TS 102 636-4-2 i.23 is a n

27、on-IP network-layer protocol that provides geographic addressing and forwarding and belongs to the position-based routing protocols category. Applications and facilities specifically designed for GeoNetworking exploit these functionalities, for example to disseminate warning or generic information m

28、essages to geographically scoped areas. The GeoNetworking protocol satisfies the requirements of several ITS services, whose application domain is limited to networks that are disconnected from large existing network infrastructures. However, several ITS applications require the integration of ITS s

29、tations with larger networks such as private transport networks or the Internet. In order to connect networks based on GeoNetworking to networks running the Internet Protocol (IP), which represent the majority of currently deployed large networks, it is necessary to allow GeoNetworking ITS stations

30、to act like Internet hosts or routers. The ETSI Technical Committee ITS recognizes IP version 6 as defined in IETF RFC 2460 8 as the primary version of IP to be necessarily supported by ITS stations. The present document introduces a set of mechanisms that allow the GeoNetworking protocol to transpo

31、rt IPv6 packets without introducing modifications to existing IPv6 protocol implementations. By deploying these mechanisms, the following two main advantages are achieved: 1) coverage offered by points-of-attachment to the Internet, such as road-side ITS stations, is extended by means of sub-IP geog

32、raphic routing; and 2) IPv6 multicast traffic can be geocasted, i.e. addressed and delivered to all ITS stations currently located within a geographic area. ETSI ETSI EN 302 636-6-1 V1.2.1 (2014-05)7The present document includes a data SAP that enables an IPv6 protocol entity to send and receive pac

33、kets over the GeoNetworking protocol. This SAP is described in the informative annex C. The present document does not include a management SAP towards the ITS station management entity. NOTE: In the reminder of the present document, when the sole term “GeoNetworking“ is used, it is to be regarded as

34、 the ETSI GeoNetworking protocol combining the media-independent part outlined in ETSI EN 302 636-4-1 7 and at least one of the media-dependent parts (such as ETSI TS 102 636-4-2 i.23). It should be noted that the media-dependent extensions do not represent distinct protocol layers. ETSI ETSI EN 302

35、 636-6-1 V1.2.1 (2014-05)81 Scope The present document specifies the transmission of IPv6 packets over the ETSI GeoNetworking protocol as defined in ETSI EN 302 636-4-1 7 via a protocol adaptation sub-layer referred to as the GN6ASL (GeoNetworking to IPv6 Adaptation Sub-Layer). The scope of the pres

36、ent document is limited to the GN6ASL. The techniques specified in the present document fulfil the requirements for GeoNetworking and IPv6 integration described in ETSI EN 302 636-1 3. In particular, these techniques allow for the transport of IPv6 packets by ETSI GeoNetworking protocol given in ETS

37、I EN 302 636-4-1 7, enabling sub-IP multi-hop delivery of IPv6 packets, e.g. in a vehicular network. As a result, the connectivity provided by points-of-attachment to IPv6 infrastructure networks is extended by means of mobile relay nodes. In addition to that, the techniques described in the present

38、 document allow for geocasting of IPv6 multicast packets. The scope of the GN6ASL is limited to the fulfilment of the requirements for GeoNetworking and IPv6 integration described in ETSI EN 302 636-1 3, clause 5.9, by enabling an ITS station including a GeoAdhoc router as given in ETSI EN 302 636-4

39、-1 7 running the GeoNetworking protocol and an IPv6-compliant protocol layer to: exchange IPv6 packets with other ITS stations; acquire globally routable IPv6 unicast addresses and communicate with an arbitrary IPv6 host located in the Internet, whenever an ITS station including a GeoAdhoc router an

40、d including or connected to an access router 5 providing IPv6 connectivity to the Internet is reachable directly or via other relay ITS stations; perform the operations required by IETF RFC 3963 14 for a Mobile Router whenever: a) an ITS mobile router supporting Network Mobility Basic Support (NEMO

41、BS) as defined in IETF RFC 3963 14 is present in the ITS station and runs on top of the GN6ASL; and b) an ITS station including a GeoAdhoc router and including or connected to an access router as defined in ETSI TS 102 636-3 5 providing IPv6 connectivity to the Internet is reachable directly or via

42、other relay ITS stations. NOTE: The present document adopts the definition of “IPv6-compliant“ and “sub-IP multi-hop delivery“ introduced in clause 3.1. Extending the IPv6 basic standards IETF RFC 2460 8, IETF RFC 4291 9, IETF RFC 4007 10, IETF RFC 4861 11 and IETF RFC 4862 13 to support new feature

43、s is outside the scope of the present document. Extensions to NEMO BS as given in IETF RFC 3963 14 are outside the scope of the present document. Mechanisms for the dissemination of IPv6 routing information for hosts and routers not directly attaching to the network where GeoNetworking is used are o

44、utside the scope of the present document (e.g. discovery of IPv6 in-vehicle prefixes). However, the present document aims at providing the underlying support for the dissemination of such routing information, i.e. IPv6 multicast support for the network where the GeoNetworking protocol is used. With

45、respect to IPv6 multicast and anycast support, the present document is limited to the support required to enable distribution of IPv6 multicast and anycast traffic on a shared link. Amendments to specific IPv6 multicast forwarding mechanisms are out of the scope of the present document. However, the

46、 present document aims at not preventing existing IPv6 multicast forwarding mechanisms from being used in conjunction with the GN6ASL. In order to facilitate the deployment of ITS systems, the present document aims at maintaining backward compatibility with pre-existent IPv6-compliant protocol imple

47、mentations and NEMO BS implementations compliant with IETF RFC 3963 14. A usage example of NEMO BS with the GN6ASL is presented in the informative annex F. The mechanisms specified in the present document are distinct from but compatible with the IPv6-related functionalities given in ISO 21210-2010

48、i.20, which specifies how IPv6 networking is generally operated in ITS stations. The techniques described in the present document provide a way to transport IPv6 packets that is fully compatible with the IPv6 specifications and pre-existing implementations, and hence is compatible with ISO 21210-201

49、0 i.20. ETSI ETSI EN 302 636-6-1 V1.2.1 (2014-05)92 References References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the reference document (including any amendments) applies. Referenced documents which are not found to be publicly available in the expected location might be found at http:/docbo0x.etsi.org/Reference. NOTE: While any hyperlinks incl

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