Switched Ethernet

Design a modular switched Ethernet model capable of simulating 1, 10, and 40 GbE links, with MAC-based auto-learning of I/O ports, support for pluggable scheduling algorithms (FCFS, WRR), while remaining extensible for future support of VLAN and Spanning Tree protocols, introduce enhanced EthernetNetDevice model with point-to-point–like NetDevice abstraction for switched Ethernet, an EthernetChannel capable of simulating both half-duplex and full-duplex modes of operation responsible for modeling transmission delay and errors.