LAB-06OPERATIONAL

Networking Lab

Department of Distance

Cables, patch panels and a wall-sized map of round trips. We simulate the physics of distance so nobody has to learn about latency during an incident.

PACKETS MAY BE LOST

DNSTCPTLSHTTP/2HTTP/3CDNcaching

USER → DNS → TLS
 → SERVER
 → RESPONSE
rtt 150ms

LAB-06

Standing bench

Initialising benchEquipment warms up. Knowledge does not require it.

Experiments

networkingSYSTEMS
Why does a fast network still feel slow?
Bandwidth doubled. Nothing got faster. The variable you changed was not the one that mattered.
networking12 min

Myths filed against this lab

ClaimIT DEPENDS
“Adding a cache always makes it faster.”
A cache with a poor hit rate adds a lookup, a write, an eviction policy and an invalidation bug, in exchange for very little.
SYSTEMSnetworking

Standing bench

Experiments

Why does a fast network still feel slow?

Myths filed against this lab

“Adding a cache always makes it faster.”