Yeah, for example, there are web services whose design goal is <30ms completed request so they can guarantee their client timely data based on a SLA. If this "real-time" project can't guarantee time of transactions, it's not "real-time".
I'm probably just being ignorant lol. Can you point me to an example company offering a service like this?
Thanks.
In general these services are not available through the public internet so routers with clogged buffers are not usually an issue. But it depends on the SLA.