Multimedia requirements of the 1990s drove wired and optical network architects to examine how to combine the advantages of packet switching with the long proven methods of circuit-switching to implement traffic engineering to reduce variance in end-to-end delay. Methods, such as asynchronous transfer mode (ATM) and multiprotocol label switching (MPLS), have been used to create virtual circuits. Because both are mature and proven technologies for wired and optical network architectures, much research has been done to apply these methods to wireless mesh networks (WMNs). But as these are applied, optimal performance improvement eludes WMN designers because of the inherent shortcomings of contention-based WMNs and the differences between the wired/optical and wireless environments in the provision of noninterfering unidirectional internodal links. This chapter will present issues regarding the development of such low-latency WMNs to include multiple orthogonal channels, virtual cut-through and wormhole switching, physical layer circuit switch design, and reservation protocols.