This has led to the bandwidths of communication networks achieving terabit per second transmission speeds. Potential uses include smart dust, low-power terabit wireless networks and photonics. The company's technology road map projects linecards' throughput to scale to 4 terabit and beyond. For example, 1.6 terabit Ethernet is predicted to become available by 2025. Waveguide over copper, which enables the Terabit DSL (TDSL). Also during this period, a multi terabit international cable Nava-1 was shelved. Terabit Ethernet or TbE is Ethernet with speeds above 100 Gbit/s. A terabit is a multiple of the unit bit for digital information or computer storage.