10/6/116watch project 1 6watch: gauging the global rollout of ipv6 dan massey dave meyer lixia zhang...
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10/6/11 6Watch Project 1
6Watch: Gauging the Global Rollout of IPv6
Dan Massey Dave Meyer Lixia ZhangColorado State U. Oregon UCLA
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Some Background
The global IPv4 address pool, managed by IANA, is exhausted.
The regional registries still have some space left, but time is running out.
10/6/11 26Watch Project
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IPv6 Solves The Problem IPv6 uses 128-bit addresses. v6-compatible hosts need to communicate
across and to the v4 network. Dual-stack 6to4 Teredo
But global v6 deployment still lagging And North America is behind the curve
10/6/11 36Watch Project
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410/6/11 6Watch Project
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510/6/11 6Watch Project
But only 7K in the current table!
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Underlying RouteViews Data RouteViews Part of
6Watch Team Source of Raw Data
IPv4 and IPv6 10+ Years of global data
Data Cited by Everyone, Hundreds of cites Every major networking
conference
10/6/11 66Watch Project
This funding is essential to RouteViews operations.RouteViews is essential to global research and operations.
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Global or Region Reachability Cumulative Routes and Current Routes Differ
25K cumulative compared to 7K current Do different ISPs see different tables?
Tracked Prefixes with Reachability Differences At least one peer At least one day
Compare Tables With Hurricane Electric Claim HE is close to “center” of IPv6
10/6/11 76Watch Project
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Comparing RouteViews Tables
10/6/11 86Watch Project
Track Number of Identical Prefixes Most (5.9K out of 7K) prefixes visible everywhere
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The Unreachable Prefixes
10/6/11 96Watch Project
Many Transient Events But others persist
Differences Due to More Specific Routes
Doesn’t reflect reachability at control plane, 6spider checking data plane…
Remainder are unreachable address space
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Unreachability Heatmap Grouped by RIR
ARIN (169), RIPE (195), LACNIC (39), APNIC (26), AfriNIC (2)
6to4 + Teredo on right Surprising Results
Ipv4 transition sites are in the problem set
ARIN (North America) 2nd largest contributor to problem set
10/6/11 106Watch Project
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Looking Forward• Complete data plane monitoring implementation• Correlate control plane with data plane to provide
a comprehensive overview of IPv6 deployment• Working on diagnosis
10/6/11
6Watch Project
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The 6Watch Team
10/6/11 6Watch Project
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Additional Information
10/6/11 6Watch Project
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What Shows US is Behind?Why Pick HE As the Center?
10/6/11 146Watch Project
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Some More Detail on An EyeP Entry
10/6/11 6Watch Project
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6to4 and Teredo Reachability
Both prefixes showed up all 20 days 6to4 (2002::/16) Teredo (2001::/32)
Unreachable by two peers Both from the same AS Not a significant reachability issue Possibly a (mis)configuration issue
10/6/11 166Watch Project
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Is Geography To Blame?
Very little geographical bias Except for LACNIC
ARIN and RIPE had the most reachability holes Also have the largest v6 allocations Generally not considered deployment leaders
APAN (Japanese ISP) Most reachability holes Smallest RIB table
10/6/11 176Watch Project