When you build a new grid one of the elements that will make your grid a success is to build one that scales, because if your grid scales well then it should be able to cope with a wide range of load types and situations. In this first part of a two-part series on designing a scalable grid I look at the main network architecture of your grid and how you can use these different architectures to suit your grid type. Read: Design a scalable grid, Part 1: Network architecture