draft-ietf-softwire-mesh-multicast-11.txt   draft-ietf-softwire-mesh-multicast-12.txt 
Network Working Group M. Xu Softwire WG M. Xu
Internet-Draft Y. Cui Internet-Draft Y. Cui
Expires: August 7, 2016 J. Wu Intended status: Standards Track J. Wu
S. Yang Expires: October 6, 2016 S. Yang
Tsinghua University Tsinghua University
C. Metz C. Metz
G. Shepherd G. Shepherd
Cisco Systems Cisco Systems
February 4, 2016 April 4, 2016
Softwire Mesh Multicast Softwire Mesh Multicast
draft-ietf-softwire-mesh-multicast-11 draft-ietf-softwire-mesh-multicast-12
Abstract Abstract
The Internet needs to support IPv4 and IPv6 packets. Both address The Internet needs to support IPv4 and IPv6 packets. Both address
families and their related protocol suites support multicast of the families and their related protocol suites support multicast of the
single-source and any-source varieties. During IPv6 transition, single-source and any-source varieties. During IPv6 transition,
there will be scenarios where a backbone network running one IP there will be scenarios where a backbone network running one IP
address family internally (referred to as internal IP or I-IP) will address family internally (referred to as internal IP or I-IP) will
provide transit services to attached client networks running another provide transit services to attached client networks running another
IP address family (referred to as external IP or E-IP). It is IP address family (referred to as external IP or E-IP). It is
expected that the I-IP backbone will offer unicast and multicast expected that the I-IP backbone will offer unicast and multicast
transit services to the client E-IP networks. transit services to the client E-IP networks.
Softwire Mesh is a solution to E-IP unicast and multicast support Softwire Mesh is a solution to E-IP unicast and multicast support
across an I-IP backbone. This document describes the mechanisms for across an I-IP backbone. This document describes the mechanism for
supporting Internet-style multicast across a set of E-IP and I-IP supporting Internet-style multicast across a set of E-IP and I-IP
networks supporting softwire mesh. networks supporting softwire mesh.
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 August 7, 2016. This Internet-Draft will expire on October 6, 2016.
Copyright Notice Copyright Notice
Copyright (c) 2016 IETF Trust and the persons identified as the Copyright (c) 2016 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
carefully, as they describe your rights and restrictions with respect carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License. described in the Simplified BSD License.
This document may contain material from IETF Documents or IETF
Contributions published or made publicly available before November
10, 2008. The person(s) controlling the copyright in some of this
material may not have granted the IETF Trust the right to allow
modifications of such material outside the IETF Standards Process.
Without obtaining an adequate license from the person(s) controlling
the copyright in such materials, this document may not be modified
outside the IETF Standards Process, and derivative works of it may
not be created outside the IETF Standards Process, except to format
it for publication as an RFC or to translate it into languages other
than English.
Table of Contents Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 4 2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 4
3. Scenarios of Interest . . . . . . . . . . . . . . . . . . . . 6 3. Scenarios of Interest . . . . . . . . . . . . . . . . . . . . 6
3.1. IPv4-over-IPv6 . . . . . . . . . . . . . . . . . . . . . 6 3.1. IPv4-over-IPv6 . . . . . . . . . . . . . . . . . . . . . 6
3.2. IPv6-over-IPv4 . . . . . . . . . . . . . . . . . . . . . 7 3.2. IPv6-over-IPv4 . . . . . . . . . . . . . . . . . . . . . 7
4. IPv4-over-IPv6 Mechanism . . . . . . . . . . . . . . . . . . 9 4. IPv4-over-IPv6 Mechanism . . . . . . . . . . . . . . . . . . 9
4.1. Mechanism Overview . . . . . . . . . . . . . . . . . . . 9 4.1. Mechanism Overview . . . . . . . . . . . . . . . . . . . 9
4.2. Group Address Mapping . . . . . . . . . . . . . . . . . . 9 4.2. Group Address Mapping . . . . . . . . . . . . . . . . . . 9
skipping to change at page 20, line 36 skipping to change at page 20, line 36
Tsinghua University Tsinghua University
Department of Computer Science, Tsinghua University Department of Computer Science, Tsinghua University
Beijing 100084 Beijing 100084
P.R. China P.R. China
Phone: +86-10-6278-5983 Phone: +86-10-6278-5983
Email: jianping@cernet.edu.cn Email: jianping@cernet.edu.cn
Shu Yang Shu Yang
Tsinghua University Tsinghua University
Department of Computer Science, Tsinghua University Graduate School at Shenzhen
Beijing 100084 Shenzhen 518055
P.R. China P.R. China
Phone: +86-10-6278-5822 Phone: +86-10-6278-5822
Email: yangshu@csnet1.cs.tsinghua.edu.cn Email: yangshu@csnet1.cs.tsinghua.edu.cn
Chris Metz Chris Metz
Cisco Systems Cisco Systems
170 West Tasman Drive 170 West Tasman Drive
San Jose, CA 95134 San Jose, CA 95134
USA USA
 End of changes. 8 change blocks. 
21 lines changed or deleted 9 lines changed or added

This html diff was produced by rfcdiff 1.45. The latest version is available from http://tools.ietf.org/tools/rfcdiff/