| Auxiliary Measurements |
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| • | Bandwidth
measurements: |
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| – | Good
news: many tools to pick from (ok, not many) |
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| – | Bad
news: they may all measure different things |
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| – | Worse
news: they don't work |
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| • | Interface
-> router mapping: |
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| – | works
sometimes, blows up sometimes |
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| • | Geographical
placement: |
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| – | very
difficult in general |
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| – | may
internally discard wildly bad data, leaving only hard to |
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| verify
bad data |
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| – | accuracy
can vary widely in geographically/economically |
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| biased ways |
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