That is, the sender was busy only 2.7 hundredths of one percent of the time!
Viewed another way, the sender was able to send only 1,000 bytes in 30.008 milliseconds, an effective throughput of only 267 kbps—even though a 1 Gbps link was
available! Imagine the unhappy network manager who just paid a fortune for a gigabit capacity link but manages to get a throughput of only 267 kilobits per second!
This is a graphic example of how network protocols can limit the capabilities