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Measuring IPv6 Deployment

Measuring IPv6 Deployment. Geoff Huston George Michaelson research@APNIC.net. Available data sets. We have access to dual stack data for:. Available data sets. We have access to dual stack data for: BGP Route table DNS server traffic WEB Server access

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Measuring IPv6 Deployment

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  1. Measuring IPv6 Deployment Geoff Huston George Michaelson research@APNIC.net

  2. Available data sets We have access to dual stack data for:

  3. Available data sets We have access to dual stack data for: • BGP Route table • DNS server traffic • WEB Server access and the data sets go back over the past 4 years

  4. The BGP view of IPv6 1500 1000 400 2006 2008 2004

  5. The BGP view of IPv4 280K 200K 120K 2004 2008 2006

  6. BGP: IPv6 and IPv4 300K 150K 0 2004 2008 2006

  7. BGP IPv6 : IPv4 0.6% 0.45% 0.3% 2006 2008 2004

  8. What’s this saying? IPV6 is 0.5% of IPv4 in terms of routing table entries

  9. What’s this saying? • But the routing domain of IPv4 is heavily fragmented, while IPv6 is not, so this figure is not a good reflection of relative deployment

  10. Let’s refine the question: How much of the Internet todayis capable of running IPv6? One way to answer this is to look at the BGP table on a per AS basis

  11. IPv6 AS Count 1000 600 300 2004 2008 2006

  12. IPv4 AS Count 30K 24K 16K 2004 2006 2008

  13. AS Count IPv6 : IPv4 3.8% 3.0% 2.2% 2008 2006 2004

  14. What’s this saying? The number of AS’s announcing IPv6 routes has risen from 2% to 4% in 4 years

  15. That 4% is not uniform 15% ofIPV4 Transit AS’s also announce IPv6 routes 2% ofIPV4 Stub AS’salso announce IPv6 routes

  16. Capability vs Actual Use If 15% of the number of transit AS’s are announcing IPv6 address prefixes, does this mean that 15% of the Internet’s “core” is running IPv6 right now?

  17. DNS Reverse Query Load Examine the average query load for reverse PTR queries for IPv6 and IPv4 zones for each of these server sets

  18. Relative DNS Query Load 2% 1% 0 2004 2008 2006

  19. What’s this saying? • Reverse DNS queries for IPv6 addresses are around 0.2% of the IPv4 query load • AsiaPac IPv6 query load is higher than for other regions • Query load has increased since 2007 • The interactions of forwarders and caches with applications that perform reverse lookups imply a very indirect relationship between actual use of IPv6 and DNS reverse query data

  20. What’s this saying? • Reverse DNS queries for IPv6 addresses are around 0.2% of the IPv4 query load • AsiaPac IPv6 query load is higher than for other regions • Query load has increased since 2007 • The interactions of forwarders and caches with applications that perform reverse lookups imply a very indirect relationship between actual use of IPv6 and DNS reverse query data Interpretation of DNS reverse resolution data is really tough!

  21. Web Server Stats • Take a couple of dual-homed web servers: http://www.apnic.net http://www.ripe.net • Count the number of distinct IPv4 and IPv6 query addresses per day • Not the number of ‘hits’, just distinct source addresses that access these sites, to reduce the relative impact of robots and crawlers on the data and normalize the data against different profiles of use • Look at the V6 / V4 access ratio

  22. Web Server Stats What proportion of end host systems will prefer end-to-end IPv6, when there is a choice? • Take a couple of dual-homed web servers: http://www.apnic.net http://www.ripe.net • Count the number of distinct IPv4 and IPv6 query addresses per day • Not the number of ‘hits’, just distinct source addresses that access these sites, to reduce the relative impact of robots and crawlers on the data and normalize the data against different profiles of use • Look at the V6 / V4 access ratio

  23. APNIC Web Server Stats 1.0% 0.5% 0.0% 2004 2008 2006

  24. RIPE NCC Web Server Stats 1.0% 0.5% 0.0% 2005 2006 2008 2007

  25. Combined Stats 1.0% 0.5% 0.0% 2004 2006 2008

  26. Combined Stats 1.0% APNIC Meetings RIPE Meetings 0.5% 0.0% 2004 2006 2008

  27. What’s this saying? Relative use of IPv6 has slowly increased over four years to reach 0.4% today Is interest in IPv6 slowing picking up again? Or Are we seeing Increased use of auto-tunnelling of IPv6 on end host stacks?

  28. Use of V6 Transition Tools 100% 6to4 50% Teredo 0% 2008 2004 2006

  29. Use of V6 Transition Tools 100% 6to4 50% Teredo 0% 2008 2004 2006

  30. What’s this saying? Around 25%of IPv6 clients appear to use tunnels to reach IPv6 servers And that hasn’t changed much over time

  31. Where are we with IPv6? 15%,or aroundone in six, of the transit ISPs of the IPv4 Internet are playing with IPv6 in some fashion

  32. Where are we with IPv6? The “size” of the IPv6 deployment in terms of end host IPv6 capability is around 4 parts per thousandInternet end hosts at present

  33. Where are we with IPv6? Buts that’s probably overstating it! • Widespread NAT use in IPv4 undercounts IPv4 host counts • These web sites are tech weenie web sites. More general sites may have less IPv6 clients

  34. Where are we with IPv6? The “size” of the IPv6 deployment in terms of end host IPv6 capability is around 2 parts per thousandInternet end hosts at present

  35. Where is IPv6? Today IPv4 Pool Size Size of the Internet ? IPv6 Transition IPv6 Deployment 0.2% Time

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