The TNETX4080 is an 8-port 100-Mbit/s nonblocking EthernetTM switch with an on-chip address-lookup engine. The TNETX4080 provides a low-cost, high-performance switch solution. The TNETX4080 is a fully manageable desktop switch solution achieved by combining the TNETX4080 with physical interfaces and high-bandwidth rambus-based packet memory and a CPU. The TNETX4080 also provides an interface capable of receiving and transmitting simple-network management protocol (SNMP) and bridge protocol data units (BPDU) (spanning-tree) frames.