The holy grail of network engineer is building a completely redundant network with no single point of failure, where outages are never seen by the end users and the network team is a happy upbeat group of individuals who never get blamed for anything. The problem adding redundancy is the added complexity needed. Sadly in the lust for more 9s of uptime you can build what I call the Rube Goldberg Network.
For those of you not familiar with what a Rube Goldberg machine is, here's the definition from Wikipedia:
"A Rube Goldberg machine, contraption,invention, device, or apparatus is a deliberately over-engineered or overdone machine that performs a very simple task in a very complex fashion..."
