draft-ietf-mboned-v4v6-mcast-ps-03.txt   draft-ietf-mboned-v4v6-mcast-ps-04.txt 
MBONED Working Group C. Jacquenet MBONED Working Group C. Jacquenet
Internet-Draft M. Boucadair Internet-Draft M. Boucadair
Intended status: Informational France Telecom Orange Intended status: Informational France Telecom Orange
Expires: December 07, 2013 Y. Lee Expires: March 10, 2014 Y. Lee
Comcast Comcast
J. Qin J. Qin
Cisco Systems Cisco Systems
T. Tsou T. Tsou
Huawei Technologies (USA) Huawei Technologies (USA)
Q. Sun Q. Sun
China Telecom China Telecom
June 05, 2013 September 06, 2013
IPv4-IPv6 Multicast: Problem Statement and Use Cases IPv4-IPv6 Multicast: Problem Statement and Use Cases
draft-ietf-mboned-v4v6-mcast-ps-03 draft-ietf-mboned-v4v6-mcast-ps-04
Abstract Abstract
This document discusses issues and requirements raised by IPv4-IPv6 This document discusses issues and requirements raised by intra-
multicast interconnection and co-existence scenarios. It also domain IPv4-IPv6 multicast interconnection and co-existence
discusses various multicast use cases which may occur during IPv6 scenarios. It also discusses various multicast use cases which may
transitioning. occur during IPv6 transitioning.
Status of This Memo Status of This Memo
This Internet-Draft is submitted in full conformance with the This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79. provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet- working documents as Internet-Drafts. The list of current Internet-
Drafts is at http://datatracker.ietf.org/drafts/current/. Drafts is at http://datatracker.ietf.org/drafts/current/.
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."
This Internet-Draft will expire on December 07, 2013. This Internet-Draft will expire on March 10, 2014.
Copyright Notice Copyright Notice
Copyright (c) 2013 IETF Trust and the persons identified as the Copyright (c) 2013 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of (http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents publication of this document. Please review these documents
skipping to change at page 3, line 17 skipping to change at page 3, line 17
example, the observed evolution of ADSL broadband access example, the observed evolution of ADSL broadband access
infrastructures from a service-specific, multi-PVC (Permanent Virtual infrastructures from a service-specific, multi-PVC (Permanent Virtual
Circuit) scheme towards a "service-agnostic", single PVC scheme, Circuit) scheme towards a "service-agnostic", single PVC scheme,
assumes the allocation of a globally unique IPv4 address on the WAN assumes the allocation of a globally unique IPv4 address on the WAN
(Wide Area Network) interface of the CPE (Customer Premises (Wide Area Network) interface of the CPE (Customer Premises
Equipment), or to a mobile terminal), whatever the number and the Equipment), or to a mobile terminal), whatever the number and the
nature of the services the customer has subscribed to. nature of the services the customer has subscribed to.
Likewise, the global IPv4 address depletion encourages the Likewise, the global IPv4 address depletion encourages the
development of IPv6 receivers while contents may very well remain development of IPv6 receivers while contents may very well remain
IPv4-formatted. There is therefore a need to make sure such IPv6 IPv4-formatted, i.e., sourced by an IPv4 application. There is
receivers can access IPv4-formatted contents during the transition therefore a need to make sure such IPv6 receivers can access
period. IPv4-formatted contents during the transition period.
During the transition period, the usage of the remaining global IPv4 During the transition period, the usage of the remaining global IPv4
address blocks will have to be rationalized for the sake of IPv4 address blocks will have to be rationalized for the sake of IPv4
service continuity. The current state-of-the-art suggests the service continuity. The current state-of-the-art suggests the
introduction of NAT (Network Address Translation) capabilities introduction of NAT (Network Address Translation) capabilities
(generally denoted as CGN, for Carrier-Grade NAT) in providers' (generally denoted as CGN, for Carrier-Grade NAT) in providers'
networks, so that a global IPv4 address will be shared between networks, so that a global IPv4 address will be shared between
several customers. several customers.
As a consequence, CPE or mobile UE (User Equipment) devices will no As a consequence, CPE or mobile UE (User Equipment) devices will no
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