Hello all, I update my draft. 4PE is introduced in this doc to meet the gap pointed out in RFC7439. 4PE routers in IPv6-only MPLS network can use MP-BGP extended in this doc to connect IPv4-only islands.. Your comments are very appreciated.
[email protected] From: internet-drafts Date: 2016-03-09 09:54 To: Zhenqiang Li Subject: New Version Notification for draft-li-bess-4pe-01.txt A new version of I-D, draft-li-bess-4pe-01.txt has been successfully submitted by Zhenqiang Li and posted to the IETF repository. Name: draft-li-bess-4pe Revision: 01 Title: Connecting IPv4 Islands over IPv6 MPLS Using IPv4 Provider Edge Routers (4PE) Document date: 2016-03-08 Group: Individual Submission Pages: 9 URL: https://www.ietf.org/internet-drafts/draft-li-bess-4pe-01.txt Status: https://datatracker.ietf.org/doc/draft-li-bess-4pe/ Htmlized: https://tools.ietf.org/html/draft-li-bess-4pe-01 Diff: https://www.ietf.org/rfcdiff?url2=draft-li-bess-4pe-01 Abstract: This document explains how to interconnect IPv4 islands over a Multiprotocol Label Switching (MPLS)-enabled IPv6-only core. This approach relies on IPv4 Provider Edge routers (4PE), which are Dual Stacks in order to connect to IPv4 islands and to the MPLS core. The 4PE routers exchange the IPv4 reachability information transparently over the core using the Multiprotocol Border Gateway Protocol (MP- BGP). MP-BGP is extended to do this. A new Subsequence Address Family Identifier (SAFI) with corresponding new format Network Layer Reachability Information (NLRI), is introduced. The BGP Next Hop field is used to convey the IPv4 address of the 4PE router, a field is added in Network Layer Reachability Information (NLRI) to convey the IPv6 address of the 4PE router, so that dynamically established IPv6-signaled MPLS Label Switched Paths (LSPs) can be used without explicit tunnel configuration. Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. The IETF Secretariat
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