Definitions for "Switched Multimegabit Data Service"
An emerging high-speed datagram-based public data network service developed by Bellcore and expected to be widely used by telephone companies as the basis for their data networks. See also: Metropolitan Area Network. [Source: RFC1208
A suite of services defined primarily by BellCore to provide for Metropolitan Area Network services. SMDS services usually run at speeds from 1.544 Mbps to 150 Mbps. Click here to view a diagram.
broadband communications standard for the Public Switched Telphone Network.
A precursor to ATM that is capable of shared service at bandwidth levels from 56K to FT3.