Path Performance: Latency vs. Bandwidth

The highest bandwidth path is not always the highest throughput path!

vBNS

DREN

SprintNAP, NJ

SDSC, CA

Host A

Perryman, MD

Host B

Aberdeen, MD

OC3 Path

DS3 Path

• Host A&B are 15 miles apart

• DS3 path is ~250 miles

• OC3 path is ~6000 miles

The network chose the OC3

path with 24x the rtt

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