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Status:

PROPOSED STANDARD

Authors:

J. De Clercq
D. Ooms
S. Prevost
F. Le Faucheur

Stream:

IETF

Source:

idr (rtg)

Cite this RFC:TXT  | XML  |  BibTeX

DOI:  https://doi.org/10.17487/RFC4798

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Abstract

This document explains how to interconnect IPv6 islands over aMultiprotocol Label Switching (MPLS)-enabled IPv4 cloud. Thisapproach relies on IPv6 Provider Edge routers (6PE), which are DualStack in order to connect to IPv6 islands and to the MPLS core, which is onlyrequired to run IPv4 MPLS. The 6PE routers exchange the IPv6reachability information transparently over the core using theMultiprotocol Border Gateway Protocol (MP-BGP) over IPv4. In doingso, the BGP Next Hop field is used to convey the IPv4 address of the 6PErouter so that dynamically established IPv4-signaled MPLS LabelSwitched Paths (LSPs) can be used without explicit tunnelconfiguration. [STANDARDS-TRACK]

For the definition ofStatus,seeRFC 2026.

For the definition ofStream, seeRFC 8729.