On 7/19/24 8:44 PM, joel jaeggli wrote:
On 7/19/24 15:07, Sean Donelan wrote:
What is the current estimated diameter of the Internet?
Maximum (worst-case) RTT edge-to-edge?
Most public latency data is now edge-to-cloud, not edge-to-edge. Cloud engineers have done a great
job, and edge-to-cloud less than 1-sec RTT.
Where have the long-slow pipes gone?
https://www.cloudping.co/grid
https://learn.microsoft.com/en-us/azure/networking/azure-network-latency?tabs=Americas%2CWestUS
https://www.verizon.com/business/terms/latency/
The RTT across geostationary satellites has remained stubbornly constant we just don't use them
unless there's no other alternative. A colleague sent me a trace the other day while flying from
hawaii to los vegas that was otherwise performant but still incurs the overhead.
Geosync is probably the highest unloaded latency, but add in a little bufferbloat and you can easily
get way more latency...I've definitely seen a minute+ pings on a plane, which is almost all queuing.
I assume airplanes are not the only place with such horrendous queuing, even if most networks have
done a good job at reducing that nonsense over the last decade.
Matt
