4 ms·

2e-3s*3e8 m/s=6e5m. So no, you are not going to get 2ms transatlantic ping.

• TheSpiceIsLife 8y ago
  Light travels something like 30% slower in fibre optic cable than vacuum. So would be more like 420 kilometres for 2ms.
  • ummonk 8y ago
    And that's round trip, so ~200 km away.
  • C1sc0cat 8y ago
    About .5c for both fibre and copper - from my memories on doing a CCNA a few years back.