Enterprise network managers are faced with networks that are growing in size and complexity. They need streamlined solutions to improve the performance and simplicity of their networks. Alcatel-Lucent Enterprise has added many new technologies to address these needs. Key among them is Shortest Path Bridging MAC-In-MAC mode (SPB-M). SPB-M helps improve network performance and stability while offering great flexibility. This paper explores the many improvements SPB-M offers over older bridging and routing technologies.