| Using Internet topology (1) |
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| • | Only
some ASes participate in blocking, rather than |
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| every
host. |
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| • | Simulation
based on: |
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| – | 359,000
IP addresses of CodeRed v2 victims July 19th |
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| – | AS
routing topology derived from RouteViews July 19th |
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| – | 100
runs of each scenario |
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| • | AS
routing paths derived from: |
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| – | shortest
paths on AS adjacencies graph |
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| – | ties
for equal-cost paths broken by total outdegree on path |
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