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Connectivity
In this test, we used ping and ping6 to investigate
the connectivity of IPv6, as compared to IPv4. Table II shows the average
percentage of the 2014 sites that are reachable by IPv6/IPv4 during our
tests. The results show that over 90% of the sites are reachable by both
IPv6 and IPv4, with the IPv6 tests achieving more than 95% connectivity to
the dual-stack sites. This represents a vast improvement compared to previous
results ([1],
[5]) where only 68.6% and 66.0% of the dual-stack sites
could be reached via IPv6, indicating that the availability and stability
of IPv6 has been increasing. The results also show that the connectivity figures
during weekday and weekend tests do not show significant differences.
Therefore, in the rest of this study, the results are averaged over all the
tests, instead of being separated into weekday and weekend results.
Table
II. Connectivity Test Results (out of 2014 sites)
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Native IPv6
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Native IPv4
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Weekday
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97.56%
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90.74%
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Weekend
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96.57%
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89.84%
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