6rd: A Transition mechanism for IPv6 Hernán Contreras G,
[email protected] CSE, Cisco Systems Chile © 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 1 A Rationale for IPv6 Adoption IPv4 Run-Out is here now Native IPv6 Internet is years and years away Entering a period of IPv4/IPv6 Coexistence Legacy (IPv4) and new (IPv6) apps and services can only function over an IPv4/IPv6 Coexistence Infrastructure Thus we need tools, methods, products and solutions that –Help address IPv4 run-out NOW –Offer incremental means to build out IPv4/IPv6 coexistence infrastructure Not one size fits all Presentation_ID © 2006 Cisco Systems, Inc. All rights reserved. Cisco Confidential 2 Enabling an Orderly, Incremental Transition Boundless service opportunities with Smart Grid, Connected Cities, Mobile Video, Cloud Computing Today Private IP 6-over-4 Transitiona 4-over-6 All IPv6 l Business / Consumer IP NGN Prosper Prepare Preserve Smart Grid Opportunity: 110 million households = IPv4 = Private IP = IPv6 in US alone Presentation_ID © 2006 Cisco Systems, Inc. All rights reserved. Cisco Confidential 3 IPv6 Strategy in Broadband Access IPv4 IPv6 Internet Internet ISP ISP ISP IPv4 core Dual stack Core dual stackCore dual stack Core Dual stack P NAT44 LNS 6rd BR AFTR 4rd BR PE NAT64 Core + Access LISP, 4rd, DS-lite 4rd, LISP, LISP, 4rd, DS-lite 4rd, LISP, LISP, 6rd, L2TP 6rd, LISP, LISP, 6rd, L2TP 6rd, LISP, IPv4 Access IPv4 Access IPv6 Access IPv6 Access Network Network Network Network PE PE PE PE PE CPE NAT44 CPE 6rd RG CPE CPE CPE Subscriber Subscriber Subscriber Subscriber Subscriber Network Network Network Network Network Carrier Grade NAT IPv6 Rapid Deployment Native Dual Stack IPv6 –Only Access IPv6-Only Subscriber Preserve Prepare Prosper Presentation_ID © 2006 Cisco Systems, Inc.