ETSI TS 102 232-2006 Lawful Interception (LI) Handover specification for IP delivery (V1 5 1 Release 7)《合法侦听(LI) IP传送的切换规范(版本1 4 1)》.pdf
《ETSI TS 102 232-2006 Lawful Interception (LI) Handover specification for IP delivery (V1 5 1 Release 7)《合法侦听(LI) IP传送的切换规范(版本1 4 1)》.pdf》由会员分享,可在线阅读,更多相关《ETSI TS 102 232-2006 Lawful Interception (LI) Handover specification for IP delivery (V1 5 1 Release 7)《合法侦听(LI) IP传送的切换规范(版本1 4 1)》.pdf(44页珍藏版)》请在麦多课文档分享上搜索。
1、 ETSI TS 102 232 V1.5.1 (2006-10)Technical Specification Lawful Interception (LI);Handover specification for IP deliveryETSI ETSI TS 102 232 V1.5.1 (2006-10) 2 Reference RTS/LI-00034 Keywords handover, IP, Lawful Interception, security ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRA
2、NCE 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 Individual copies of the present document can be downloaded from: http:/www.etsi.org The present document may b
3、e made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF versio
4、n 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 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
5、 you find errors in the present document, please send your comment to one of the following services: http:/portal.etsi.org/chaircor/ETSI_support.asp Copyright Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to repr
6、oduction in all media. European Telecommunications Standards Institute 2006. All rights reserved. DECTTM, PLUGTESTSTM and UMTSTM are Trade Marks of ETSI registered for the benefit of its Members. TIPHONTMand the TIPHON logo are Trade Marks currently being registered by ETSI for the benefit of its Me
7、mbers. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. ETSI ETSI TS 102 232 V1.5.1 (2006-10) 3 Contents Intellectual Property Rights6 Foreword.6 Introduction 6 1 Scope 7 2 References 7 3 Definitions and abbreviations.9 3.1 Definitions
8、9 3.2 Abbreviations .9 4 General .10 4.1 Functionality.10 4.2 Intercepted data types.10 4.2.1 Interception at network operator or access provider.11 4.2.2 Interception at service providers.11 4.3 Relationship to other standards 11 4.3.1 Handover for GPRS / UMTS PS 12 5 Headers.12 5.1 General .12 5.2
9、 Description and purpose of the header fields .13 5.2.1 Version13 5.2.2 LIID 13 5.2.3 Authorization country code.13 5.2.4 Communication identifier .13 5.2.5 Sequence number14 5.2.6 Payload timestamp14 5.2.7 Payload direction 14 5.2.8 Payload type14 5.2.9 Interception type .15 5.2.10 IRI type .15 5.2
10、.11 Interception Point Identifier15 5.3 Encoding of header fields.15 6 Data exchange 15 6.1 Introduction 15 6.2 Handover layer .16 6.2.1 General16 6.2.2 Error reporting 17 6.2.3 Aggregation of payloads.17 6.2.4 Sending a large block of application-level data 17 6.2.5 Padding data18 6.3 Session layer
11、.18 6.3.1 General18 6.3.2 Opening and closing connections .18 6.3.3 Buffering.19 6.3.4 Keep-alives .19 6.4 Transport layer .19 6.4.1 Introduction.19 6.4.2 TCP settings20 6.4.3 Acknowledging data .20 6.5 Network layer.20 7 Delivery networks 20 7.1 Types of network20 7.1.1 General20 ETSI ETSI TS 102 2
12、32 V1.5.1 (2006-10) 4 7.1.2 Private networks .20 7.1.3 Public networks with strict control .20 7.1.4 Public networks with loose control.21 7.2 Security requirements.21 7.2.1 General21 7.2.2 Confidentiality and authentication21 7.2.3 Integrity 21 7.3 Further delivery requirements 22 7.3.1 Test data22
13、 7.3.2 Timeliness.23 Annex A (normative): ASN.1 syntax trees .24 A.1 ASN.1 syntax tree for HI2 and HI3 headers.24 A.2 ASN.1 specification24 A.3 Importing parameters from other standards .28 Annex B (informative): Requirements .29 B.1 Types of intercepted information .29 B.2 Identification of traffic
14、 .29 B.3 Performance .29 B.4 Timeliness 30 B.5 Reliability and availability .30 B.6 Discarding information.30 B.7 Security.30 B.8 Other.31 Annex C (informative): Notes on TCP tuning32 C.1 Implement RFC 2581 .32 C.2 Minimize roundtrip times.32 C.3 Enable maximum segment size option.32 C.4 Path MTU di
15、scovery 32 C.5 Selective acknowledgement .32 C.6 High speed options.32 C.7 PUSH flag 33 C.8 Nagles algorithm33 C.9 Buffer size 33 Annex D (informative): IRI-only interception .34 D.1 Introduction 34 D.2 Definition HI information 34 D.3 IRI deriving 34 D.4 IRI by post and pre-processing HI3 informati
16、on35 Annex E (informative): Purpose of profiles .36 E.1 Formal definitions 36 E.2 Purpose of profiles .36 ETSI ETSI TS 102 232 V1.5.1 (2006-10) 5 Annex F (informative): Traffic management of the handover interface.38 F.1 Background 38 F.1.1 Burstiness .38 F.1.2 Mixed content.38 F.1.3 Network facilit
17、ies for traffic management39 F.1.4 Evidentiary considerations .39 F.1.5 National considerations 39 F.2 Traffic management strategies .39 F.3 Bandwidth estimation.40 F.4 National considerations 40 F.5 Implementation considerations.40 F.5.1 Volatile versus non-volatile storage .40 F.5.2 Maximum buffer
18、ing time .41 F.5.3 Transmission order of buffered data.41 F.5.4 Buffer overflow processing 41 Annex G (informative): Bibliography.42 Annex H (informative): Change request history43 History 44 ETSI ETSI TS 102 232 V1.5.1 (2006-10) 6 Intellectual Property Rights IPRs essential or potentially essential
19、 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 Essential, IPRs notified t
20、o ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http:/webapp.etsi.org/IPR/home.asp). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be g
21、iven 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 Technical Specification (TS) has been produced by ETSI Technical Committee Lawful Interception (LI).
22、Introduction The objective of the present document is to form the basis for a standardized handover interface for use by both telecommunications service providers and network operators, including Internet Service Providers, that will deliver the interception information required by Law Enforcement A
23、uthorities under various European treaties and national regulations. The present document describes how to handover intercepted information via IP-based networks from a CSP to an LEMF. The present document covers the transportation of traffic, but does not specify functionality within CSPs or LEMF (
24、see clause 4.1). It handles the transportation of intercepted traffic (HI3) and intercept-related information (HI2) but not the tasking and management of Lawful Interception (HI1). The present document is intended to be general enough to be used in a variety of situations: it is not focused on a par
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