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IPv6 Address Provisioning
In this test, we investigate the IPv6 address
provisioning capabilities using two mechanisms, namely stateful DHCPv6 [11]
and stateless IPv6 address autoconfiguration [12]. We compare the latency performance
of these two mechanisms using the BSD machines in our testbed. We tested
the performance of the autoconfiguration mechanism with both the default
setting [13]
(where the transmission interval for the router advertisements ranges from
200s to 600s) as well as the “fastest” setting [13]
(where the transmission interval ranges from 3s to 4s). As seen from Table
V, the time to obtain an IP address with DHCPv4 is shorter compared to
DHCPv6. We also see that the time to obtain an IPv6 address with DHCPv6 is
shorter compared to the autoconfiguration mechanism with the default setting.
However, the autoconfiguration mechanism with the fastest setting performs
the best, compared with the other address provisioning mechanisms, albeit
with the tradeoff of increased control overhead messages due to the more
frequent router advertisements.
Table V. Address Provisioning Results
(with default settings)
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Auto-Conf
(Fastest)
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Auto-Conf
(Default)
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DHCPv6
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DHCPv4
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Avg (s)
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2.99
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204.92
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48.68
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7.14
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Max (s)
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4.24
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400.51
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223.54
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9.47
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Min (s)
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1.45
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17.38
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9.38
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3.06
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SD (s)
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1.15
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130.58
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64.57
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1.84
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