We offer high-performance silicon-proven as measured by resource use, gate count, and latency. The IP cores provide FlexE 2.1/2.0 functionality and execute on multi-rate Ethernet PCS and MAC. It focuses on 200 & 400-Gbps Ethernet MAC and PCS requirements for a variety of applications, inclusive of low-latency switches, packet processing based on the quality of service (QoS), test and tracking equipment and other systems intended for such desired markets as data center and high-frequency deal. This adaptable device allows users to add or drop sub-channels or merge channels. These active changes do not affect traffic on existing channels. The core is responsible for channel alignment and FEC (where applicable).