Switched Multi-Megabit Data service (SMDS) A WAN technology similar to ATM that has a 53-byte fixed-length cell and no error checking. Switched Multi-Megabit Data service (SMDS) offers
Gigabit Ethernet Gigabit Ethernet is an IEEE standard (802.3z) that allows for 1000 Mbps transmission using CSMA/CD and Ethernet frames.