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Running MPLS on an IPv6-only Network

Running MPLS on an IPv6-only Network. Wes George (operator asking for it) Vishwas Manral Rajiv Asati Rajiv Papneja Carlos Pignataro. IPv6-only Network Realization: Use case. Service Providers, Cable Companies, Mobile Operators, WiFi providers

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Running MPLS on an IPv6-only Network

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  1. Running MPLS on an IPv6-only Network Wes George (operator asking for it) Vishwas Manral Rajiv Asati Rajiv Papneja Carlos Pignataro

  2. IPv6-only Network Realization: Use case Service Providers, Cable Companies, Mobile Operators, WiFi providers • Thousands (or millions) of devices that need to be IP-addressable • Set Top boxes, macro/micro/femto/picocell devices, WiFi APs, M2M/IoT • Today: Massive overlap/reuse of RFC1918, squat, little public IPv4 space available • ASAP: Endpointsonly get IPv6 addresses, preserve IPv4 for customers • What happens when I need to extend my MPLS infrastructure/features/services to/through these IPv6-only nodes? • Does everything still work? • And don’t assume we can put IPv4 addresses on upstream PE or P routers either

  3. MPLS IPv6 network: Use case time-line • But isn’t IPv6-only networking a long way off? • Deploying IPv6-only devices TODAY • MPLS/LDP on IPv6-only networks isn’t needed yet, but let’s assume it will be within ~5 years: • IETF protocol dev process = 2+ years • Vendor Implementation and test = 1-2 years • Carrier test and roll-out = 1-2 years • Get IPv6-only support on MPLS ahead of when we need it • MUST NOT require IPv4 for proper and complete function (RFC6540)

  4. Proposal: A Gap Analysis • Assuming a network of IPv6-only PE/P routers • Assuming all services defined for MPLS Today

  5. Gap Analysis: Possible impact on IPv6 only MPLS networks Assuming a network of IPv6-only PE/P routers • L2VPN/VPLS/MPLS-TP • L3VPN (4PE/4VPE??) • NG-MVPN (v4 and v6 multicast) • Control plane, LDP, TE • OAM • Both classical LDP and GRE/L2TPv3 over IPv6 transport (non-MPLS core) • Ensure that user data address family is agnostic of transport network address family • Some ongoing efforts in IETF to address known gaps • Updates to LDP for IPv6: draft-ietf-mpls-ldp-ipv6-08 • Router-Alert : draft-manral-mpls-rsvpte-ipv6 • Definitions of Textual Conventions (TCs) for Multiprotocol Label Switching (MPLS) Management : draft-manral-mpls-rfc3811bis-01

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