draft-ietf-v6ops-3gpp-cases-00.txt		draft-ietf-v6ops-3gpp-cases-01.txt
	Internet Draft J. Soininen,		Internet Draft J. Soininen,
	Document: draft-ietf-v6ops-3gpp-cases-00.txt Editor		Document: draft-ietf-v6ops-3gpp-cases-01.txt Editor
	Expires: March 2003 Nokia		Expires: June 2003 Nokia
	September 2002		December 2002
	Transition Scenarios for 3GPP Networks		Transition Scenarios for 3GPP Networks
	Status of this Memo		Status of this Memo
	This document is an Internet-Draft and is in full conformance with		This document is an Internet-Draft and is in full conformance with
	all provisions of Section 10 of RFC2026.		all provisions of Section 10 of RFC2026.
	Internet-Drafts are working documents of the Internet Engineering		Internet-Drafts are working documents of the Internet Engineering
	Task Force (IETF), its areas, and its working groups. Note that		Task Force (IETF), its areas, and its working groups. Note that
	skipping to change at page 1, line 30		skipping to change at page 1, line 30
	Internet-Drafts are draft documents valid for a maximum of six months		Internet-Drafts are draft documents valid for a maximum of six months
	and may be updated, replaced, or obsoleted by other documents at any		and may be updated, replaced, or obsoleted by other documents at any
	time. It is inappropriate to use Internet-Drafts as reference		time. It is inappropriate to use Internet-Drafts as reference
	material or to cite them other than as "work in progress."		material or to cite them other than as "work in progress."
	The list of current Internet-Drafts can be accessed at		The list of current Internet-Drafts can be accessed at
	http://www.ietf.org/ietf/1id-abstracts.txt		http://www.ietf.org/ietf/1id-abstracts.txt
	The list of Internet-Draft Shadow Directories can be accessed at		The list of Internet-Draft Shadow Directories can be accessed at
	http://www.ietf.org/shadow.html.		http://www.ietf.org/shadow.html.
			Copyright Notice
			Copyright (C) The Internet Society (2002). All Rights Reserved.
	Abstract		Abstract
	This document describes different scenarios in Third Generation		This document describes different scenarios in Third Generation
	Partnership Project (3GPP) defined packet network, i.e. General		Partnership Project (3GPP) defined packet network, i.e. General
	Packet Radio Service (GPRS) that would need IP version 6 and IP		Packet Radio Service (GPRS) that would need IP version 6 and IP
	version 4 transition. The focus of this document is on the scenarios		version 4 transition. The focus of this document is on the scenarios
	where the User Equipment (UE) connects to nodes in other networks,		where the User Equipment (UE) connects to nodes in other networks,
	e.g. in the Internet. GPRS network internal transition scenarios,		e.g. in the Internet. GPRS network internal transition scenarios,
	i.e. between different GPRS elements in the network, are out of scope		i.e. between different GPRS elements in the network, are out of scope
	of this document.		of this document.
	The purpose of the document is to list the scenarios for further		The purpose of the document is to list the scenarios for further
	discussion and study.		discussion and study.
	Table of Contents		Table of Contents
	1. Introduction...................................................2		1. Introduction...................................................2
	2. Scope of the document..........................................2		2. Scope of the document..........................................2
	3. Brief description of the 3GPP network environment..............2		3. Brief description of the 3GPP network environment..............3
	3.1 GPRS architecture basics...................................3		3.1 GPRS architecture basics...................................3
	3.2 IP Multimedia Core Network Subsystem (IMS).................3		3.2 IP Multimedia Core Network Subsystem (IMS).................4
	4. Transition scenarios...........................................5		4. Transition scenarios...........................................5
	4.1 GPRS Scenarios.............................................5		4.1 GPRS Scenarios.............................................5
	4.2 Transition scenarios with IMS..............................8		4.2 Transition scenarios with IMS..............................8
	5. Security Considerations........................................8		5. Security Considerations........................................9
	6. Changes from Last version......................................9
	Authors...........................................................9		Authors...........................................................9
	References.......................................................10		References.......................................................10
	Editor's Address.................................................10		Editor's Address.................................................10
	Copyright		Copyright
	(C) The Internet Society (2002). All Rights Reserved.		(C) The Internet Society (2002). All Rights Reserved.
	1. Introduction		1. Introduction
	This document will describe the transition scenarios in 3GPP packet		This document will describe the transition scenarios in 3GPP packet
	data networks that might come up in the deployment phase of IPv6.		data networks that might come up in the deployment phase of IPv6.
	The main purpose of this document is to identify, and document those		The main purpose of this document is to identify, and document those
	scenarios for further discussion, and for study in the V6OPS working		scenarios for further discussion, and for study in the v6ops working
	group.		group.
	This document gives neither an overview, nor an explanation of 3GPP		This document gives neither an overview, nor an explanation of 3GPP
	or the 3GPP packet data network, GPRS. A good overview of the 3GPP		or the 3GPP packet data network, GPRS. A good overview of the 3GPP
	specified GPRS can be found from [1]. The GPRS architecture		specified GPRS can be found from [1]. The GPRS architecture
	specification is defined in [2].		specification is defined in [2].
	2. Scope of the document		2. Scope of the document
	The scope of this document is to describe the possible transition		The scope of this document is to describe the possible transition
	skipping to change at page 9, line 5		skipping to change at page 9, line 23
	| | | GGSN | | |+------+| IMS |		| | | GGSN | | |+------+| IMS |
	| IPv6 | | | | || IPv4 || |		| IPv6 | | | | || IPv4 || |
	+------+ +------+ +-----++------++-----+		+------+ +------+ +-----++------++-----+
	Figure 9: Two IMS islands connected over IPv4		Figure 9: Two IMS islands connected over IPv4
	5. Security Considerations		5. Security Considerations
	This document does not generate any additional security		This document does not generate any additional security
	considerations.		considerations.
	6. Changes from Last version
	Description of the 3GPP environment has been added - brief overview
	of both GPRS, and IMS.
	Pictures added to scenarios for better explanation.
	Authors deleted from the header, and design team members added to the
	end of the document instead.
	Authors		Authors
	This is document is a result of a joint effort of a design team. The		This is document is a result of a joint effort of a design team. The
	members of the design team are listed in the following.		members of the design team are listed in the following.
	Alain Durand, Sun Microsystems		Alain Durand, Sun Microsystems
	<Alain.Durand@sun.com>		<Alain.Durand@sun.com>
	Karim El-Malki, Ericsson Radio Systems		Karim El-Malki, Ericsson Radio Systems
	<Karim.El-Malki@era.ericsson.se>		<Karim.El-Malki@era.ericsson.se>
	Paul Francis, Tahoe Networks
	<francis@tahoenetworks.com>
	Niall Richard Murphy, Enigma Consulting Limited		Niall Richard Murphy, Enigma Consulting Limited
	<niallm@enigma.ie>		<niallm@enigma.ie>
	Hugh Shieh, AT&T Wireless		Hugh Shieh, AT&T Wireless
	<hugh.shieh@attws.com>		<hugh.shieh@attws.com>
	Jonne Soininen, Nokia		Jonne Soininen, Nokia
	<jonne.soininen@nokia.com>		<jonne.soininen@nokia.com>
	Hesham Soliman, Ericsson Radio Systems		Hesham Soliman, Ericsson Radio Systems
	<hesham.soliman@era.ericsson.se>		<hesham.soliman@era.ericsson.se>
	Margaret Wasserman, Wind River		Margaret Wasserman, Wind River
	<mrw@windriver.com>		<mrw@windriver.com>
	Juha Wiljakka, Nokia		Juha Wiljakka, Nokia
	<juha.wiljakka@nokia.com>		<juha.wiljakka@nokia.com>
	Acknowledgements		Acknowledgements
	The authors would like to thank Basavaraj Patil, Tuomo Sipila, Fred		The authors would like to thank Basavaraj Patil, Tuomo Sipil„, Fred
	Templin, Rod Van Meter, and Jens Staack for good input, and comments		Templin, Rod Van Meter, and Jens Staack for good input, and comments
	that helped writing this document.		that helped writing this document.
	References		References
	[1] Wasserman, M. et al, "Recommendations for IPv6 in 3GPP		[1] Wasserman, M., "Recommendations for IPv6 in Third Generation
	Standards", January 2002, draft-ietf-ipv6-3gpp-recommend-00.txt.		Partnership Project (3GPP) Standards", September 2002, RFC3314.
	[2] 3GPP TS 23.060 v 5.2.0, "General Packet Radio Service (GPRS);		[2] 3GPP TS 23.060 v 5.2.0, "General Packet Radio Service (GPRS);
	Service description; Stage 2(Release 5)", June 2002.		Service description; Stage 2(Release 5)", June 2002.
	[3] 3GPP TS 23.228 v 5.3.0, " IP Multimedia Subsystem (IMS); Stage		[3] 3GPP TS 23.228 v 5.3.0, " IP Multimedia Subsystem (IMS); Stage
	2(Release 5)", January 2002.		2(Release 5)", January 2002.
	[4] 3GPP TS 24.228 V5.0.0, "Signalling flows for the IP multimedia		[4] 3GPP TS 24.228 V5.0.0, "Signalling flows for the IP multimedia
	call control based on SIP and SDP; Stage 3 (Release 5)", March		call control based on SIP and SDP; Stage 3 (Release 5)", March
	2002.		2002.
	[5] 3GPP TS 24.229 V5.0.0, "IP Multimedia Call Control Protocol		[5] 3GPP TS 24.229 V5.0.0, "IP Multimedia Call Control Protocol
	based on SIP and SDP; Stage 3 (Release 5)", March 2002.		based on SIP and SDP; Stage 3 (Release 5)", March 2002.
	Editor's Address		Editor's Address
	Jonne Soininen		Jonne Soininen
	Nokia		Nokia
	313 Fair Child Dr. Phone: +1-650-864-6794		313 Fairchild Dr. Phone: +1-650-864-6794
	Mountain View, CA, USA Email: jonne.Soininen@nokia.com		Mountain View, CA, USA Email: jonne.Soininen@nokia.com
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