In this chapter, a customer engagement is recreated that includes the design and testing of a data center security solution. The security is provided by Juniper Networks SRX5800 Series Services Gateways (SRXs) embedded in a Cisco infrastructure. To say the least, this engagement tested the technical and political skills of our small Juniper Networks warrior tribe: competing tribes had to work together to meet the demands of the customer, and bury the hatchet, so to speak, for the betterment of the project. It was a tough engagement, but in the end, it allowed Juniper Networks to get a foothold in a Cisco shop (something that has occurred more and more regularly in the last decade).