SMDS, which stands for Switched Multi-megabit Data Services, was a connectionless service used to connect LANs, MANs and WANs to exchange data. SMDS was based on the IEEE 802.6 DQDB standard. SMDS fragmented its datagrams into smaller "cells" for transport, and can be viewed as a technological precursor of ATM.
Increases in raw data rates removed the need for fragmentation into cells, and SMDS' niche market position ensured that it remained a high-priced service. As a result, SMDS has been supplanted by IP-based and Ethernet-based services and MPLS.
SMDS: a phone service for computers. (Switched Multimegabit Data Service, includes related articles)(SMDS: The First Broadband Public Network Service)
Jun 01, 1992; It's never easy to condense the description of a new networking service technology to a single sentence, but in the case of...