[Softwires] RFC 8638 on IPv4 Multicast over an IPv6 Multicast in Softwire Mesh Network
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Subject: [Softwires] RFC 8638 on IPv4 Multicast over an IPv6 Multicast in Softwire Mesh Network
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A new Request for Comments is now available in online RFC libraries.
RFC 8638
Title: IPv4 Multicast over an IPv6 Multicast
in Softwire Mesh Networks
Author: M. Xu,
Y. Cui,
J. Wu,
S. Yang,
C. Metz
Status: Standards Track
Stream: IETF
Date: September 2019
Mailbox: xumw@tsinghua.edu.cn,
cuiyong@tsinghua.edu.cn,
jianping@cernet.edu.cn,
yang.shu@szu.edu.cn,
chmetz@cisco.com
Pages: 19
Characters: 41530
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-softwire-mesh-multicast-25.txt
URL: https://www.rfc-editor.org/info/rfc8638
DOI: 10.17487/RFC8638
During the transition to IPv6, there are scenarios where a backbone
network internally running one IP address family (referred to as the
internal IP or I-IP family) connects client networks running another
IP address family (referred to as the external IP or E-IP family).
In such cases, the I-IP backbone needs to offer both unicast and
multicast transit services to the client E-IP networks.
This document describes a mechanism for supporting multicast across
backbone networks where the I-IP and E-IP protocol families differ.
The document focuses on the IPv4-over-IPv6 scenario, due to lack of
real-world use cases for the IPv6-over-IPv4 scenario.
This document is a product of the Softwires Working Group of the IETF.
This is now a Proposed Standard.
STANDARDS TRACK: This document specifies an Internet Standards Track
protocol for the Internet community, and requests discussion and suggestions
for improvements. Please refer to the current edition of the Official
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