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4map6 Segments for IPv4 Service delivery over IPv6-only underlay networks
draft-dong-spring-sr-4map6-segments-05

Document Type Expired Internet-Draft (individual)
Expired & archived
Authors Guozhen Dong , Chongfeng Xie , Xing Li , Shuping Peng , Eduard Metz
Last updated 2026-05-06 (Latest revision 2025-11-02)
Replaces draft-dong-spring-sr-4map6-segment
RFC stream (None)
Intended RFC status (None)
Formats
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date (None)
Responsible AD (None)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:

Abstract

This document defines a new type of segment for Segment Routing, 4map6 segment, along with its corresponding End.4map6 endpoint behavior. This behavior performs stateless IPv4/IPv6 translation or encapsulation at PE nodes based on stateless mapping rules, thereby enabling the delivery of IPv4 services over an IPv6-only network. At the same time, the BGP Prefix-SID attribute SRv6 Service TLVs is extended to transmit IPv4/IPv6 address mapping rules in IPv6-only domain and cross-domain.

Authors

Guozhen Dong
Chongfeng Xie
Xing Li
Shuping Peng
Eduard Metz

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)