I think this is the right place..question about packet switching.

I’m not a computer science person, really just learning about networking, the like. But, I was wondering, if one was using packet switching as a method to send a piece of data through a network and the packets themselves are all the same, so the message is not being split up....but each one with different identifiers showing the first hub it needs to hit...., what would be the best way to garantee or make the odds high that that the message will be received at the destination...given that each hub may or not forward the data. So the hub knows where it received the data from, and is given the instruction to send the data on, but it can send it to any other hub in the network. And it is also not required to send it, so it essentially has a 50 percent chance of sending the data on to some other hub.

This is probably pretty confusing, but if anyone can help me out or point in the right direction, that would be so much appreciated.

Thanks!