If you want point-to-point communication between two network namespaces, you should use veths[1]. I think virtual patch cables is a good mental model for veths.
If you want multiple participants, you use bridges, which are roughly analogous to switches.
That would create an excessive amount of bridges in my case. Also this is another trivial suggestion that anyone can find with a quick search or asking an LLM. Not helpful.
I'm not sure why people are replying to my comment with solutioning and trivial suggestions. All I did was encourage the thread OP to publish their notes. FWIW I've already been through a lot of options for solving my issue, and I've settled on one for now.
