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Examples

This page is intended for showing cases where database techniques such as GeoIpTool and Networld are very inaccurate and hence measurement based techniques such as ACBG and CBG are required. There is also a Confluence Page on this topic.

ae-6-6.ebr2.Frankfurt1.Level3.net

The name of the router suggests that it is near Frankfurt and that's what both ACBG and CBG estimates convey, GeoIP and Networld however show it in USA.


ae-48-48.ebr1.Amsterdam1.Level3.net

The name of the router suggests that it is in Amsterdam and that's what both ACBG and CBG estimates convey, GeoIP and Networld however show it in USA.

kanscr5-ip-a-denvcr5.es.net

The name of the router suggests that it is somewhere is kansas and that's what both ACBG and CBG estimates convey, the database tools however show them as being on the opposite corners of the country

kansas

denvcr5-ip-b-denvcr2.es.net

ACBG and CBG find the router to be in Denver city which is what the name implies. The result of GeoIpTool points to San Francisco where as Networld suggests it is in New York City.

sacrcr5-ip-a-sunncr5.es.net

The name of the router suggests that it is in Sacramento and that's what both ACBG and CBG estimates convey, GeoIP however show them as being in San Francisco and Networld thinks it in NewYork.

chiccr5-ip-a-kanscr5.es.net

The name of the router suggests that it is in Chicago and that's what both ACBG and CBG estimates convey, GeoIP however show them as being in San Francisco and Networld thinks it in NewYork.

nust.edu.pk

This webserver is in NUST Main Campus, ACBG got it exactly right, CBG got in narrowed down to the city with the marker in right place. GeoIP gives the location as Center of Pakistan and Networld has no idea at all.