Homa was proposed as a datacenter-centric protocol for intra-DC traffic. In that context, with heterogeneous compute loads with various levels of criticality and confidentiality requirements, not considering how to layer encryption better is a design flaw.

So that any sensitive data stupidly uploaded doesn't get leaked, which includes "zero-retention" corporate stuff. Anything that could get sniffed by employees and other agents. It really should be standard practice for any data passing between nodes, even if it's all within a site.

> Why would you run encryption between nodes in an (...) cluster?

This is self-evident, isn't it?

Other than the buzzword factor, why do you think name-dropping AI makes a difference?