> Is there case where we would ever want to treat BUSY responses differently > from timeouts?
I doubt it for a single MAD, but I can't say what people may have implemented. The main difference I can think of is that a busy response requires a retry, whereas a timeout does not. This affects the retry policy when multiple MADs are outstanding. E.g. if there are 10 requests outstanding and the first times out, we may only resend the first request and increase the timeouts of the other 9. If the 10 requests all receive a busy, then they must all be retried. To me, it looks like it makes more sense to never send busy, except maybe when receive buffer space is full consumed, but implement a more intelligent timeout/retry mechanism on the sender side. The SA almost needs some sort of MRA like message. - Sean
