Back in the 90s, I was doing telecommunications standards and one operator proposed storing all the performance information right on the optical switches. Given that a large amount of performance metrics were being generated every second, the vendors all had looks of horror on their face. Seeing that nobody else from a vendor was going to speak up, I calmly explained just what he was asking for. We could theoretically do it, but the cost would be massive. He promptly dropped the proposal.