What the Internet Is

Internet Basics · L1 · 第 1 / 6 节 · 约 8 分钟

The Internet is a network of networks. Data moves as packets across independent routes and is reassembled at the destination.

Verify

ping -c 4 1.1.1.1
traceroute 1.1.1.1

Use repeated samples; one lost packet is not proof of an outage.