> This does not really have anything to do with either kubernetes or networks.
The article is literally about an issue that was experienced while operating kkbernetes clusters.
FTA:
> Essentially, applications running on our Kubernetes clusters would observe seemingly random latency of up to and over 100ms on connections, which would cause downstream timeouts or retries.
Sounds like a problem affecting Kubernetes to me, and an important one.
More importantly, it sounds like a non-trivial problem that others operating Kubernetes clusters would be interested in learning how to identify and how to search for the root cause.