Where are the Delays? .Insights from a major ISP

POP

POP

POP

POP

Measurement Station

Newsfeps

Msmt Agent

Mailfeps

Webfeps

DNS Servers

Well engineered ISP network

with mail, news and web

servers.

Summer 1997

Measurement tools formed .basis for HP Firehunter

POPs distributed across USA.

 POPs

򗧈 servers

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