I see you haven't met Google's production backbone network(s)... We intentionally didn't connect the Middle East and India (due to a combination of geopolitics and concerns around routing instability), so any traffic between the two would go the long way around the world, incurring a 200+ ms RTT penalty.
Agreed entirely on your point that if you're buying multiple redundant links, you're responsible for making sure that they're actually relying on different underlying fiber spans.
I see you haven't met Google's production backbone network(s)... We intentionally didn't connect the Middle East and India (due to a combination of geopolitics and concerns around routing instability), so any traffic between the two would go the long way around the world, incurring a 200+ ms RTT penalty.
(There was a ThousandEyes report back in 2018 that gave us a black eye. See pages 20-22 of https://pc.nanog.org/static/published/meetings/NANOG75/1909/...)
Agreed entirely on your point that if you're buying multiple redundant links, you're responsible for making sure that they're actually relying on different underlying fiber spans.