Re: 60 ms cross-continent

Speed of light in glass ~200 km/s 100 km rtt = 1ms Coast-to-coast ~6000 km ~60ms Tim:> On Sat, Jun 20, 2020 at 12:27 PM William Herrin <bill@herrin.us> wrote:

Howdy,

Why is latency between the east and west coasts so bad? Speed of light accounts for about 15ms each direction for a 30ms round trip. Where does the other 30ms come from and why haven't we gotten rid of it?

c = 186,282 miles/second 2742 miles from Seattle to Washington DC mainly driving I-90

2742/186282 ~= 0.015 seconds

Thanks, Bill Herrin

-- William Herrin bill@herrin.us https://bill.herrin.us/

-- Tim:>