Connecting IPv6 Islands over IPv4 MPLS Using IPv6 Provider Edge Routers (6PE)
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Auteur(s) :
F. Le Faucheur,
D. Ooms,
J. De Clercq,
S. Prevost
Classé sous :
Mp-bgp
Network Working Group J. De Clercq
Request for Comments: 4798 Alcatel-Lucent
Category: Standards Track D. Ooms
OneSparrow
S. Prevost
BT
F. Le Faucheur
Cisco
February 2007
Connecting IPv6 Islands over IPv4 MPLS Using
IPv6 Provider Edge Routers (6PE)
Status of This Memo
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 "Internet
Official Protocol Standards" (STD 1) for the standardization state
and status of this protocol. Distribution of this memo is unlimited.
Copyright Notice
Copyright (C) The IETF Trust (2007).
Abstract
This document explains how to interconnect IPv6 islands over a
Multiprotocol Label Switching (MPLS)-enabled IPv4 cloud. This
approach relies on IPv6 Provider Edge routers (6PE), which are Dual
Stack in order to connect to IPv6 islands and to the MPLS core, which
is only required to run IPv4 MPLS. The 6PE routers exchange the IPv6
reachability information transparently over the core using the
Multiprotocol Border Gateway Protocol (MP-BGP) over IPv4. In doing
so, the BGP Next Hop field is used to convey the IPv4 address of the
6PE router so that dynamically established IPv4-signaled MPLS Label
Switched Paths (LSPs) can be used without explicit tunnel
configuration.
De Clercq, et al. Standards Track [Page 1]