The Internet bandwidth usage continues to grow as more people come online for the first time and more devices are connected per user. With this trend, it is no surprise that the demand for high-capacity systems and larger port densities is increasing rapidly. At the same time, we still also have a need for lower port densities to aggregate traffic from multiple channels.
With these requirements in mind, Cisco designed the NCS-57C1-48Q6-SYS. It is a fixed chassis that combines low port densities of 1GE/10GE/25GE with higher port densities of 50GE/100GE/400GE and QSFP-DD optics, deep packet buffering, MACsec, Class C 1588 Precision Time Protocol (PTP), and Synchronous Ethernet (SyncE) in an extremely power-efficient, 1-rack-unit package.