The Broadband Forum, through its MPLS in Mobile Backhaul Initiative (MMBI), aims to define reference architectures and technical specifications for mobile backhaul deployments in collaboration with vendors and service providers. The initiative motivates vendors to offer products and services on a commonly agreed framework and enables service providers to offer new services with reduced risk and improved time to market. This paper targets vendors and service providers that are in various stages of planning for mobile backhaul for LTE.