Switched Multimegabit Data Service (SMDS)

Definition - What does Switched Multimegabit Data Service (SMDS) mean?

A switched multimegabit data service (SMDS) is a connectionless telecommunications service allowing organizations to exchange large amounts of data over a wide area network (WAN) on a non-constant or burst basis. SMDS is usually provided by telephone companies as a value-added service.

SMDS extends the abilities of an organization’s local area network (LAN) over a wide area on an as-needed basis. If a regional office of a commercial bank only needs to send data once a day to the central headquarters, there is no need to have a dedicated wide area network (WAN) connection, which will be idle most of the day. SMDS offers a solution through use of public telecommunications facilities to periodically send a burst of data, but only when and as needed.

Techopedia explains Switched Multimegabit Data Service (SMDS)

SMDS is not a protocol but rather a telecommunications service. It can be used by any protocol supporting connectionless communications. A connectionless communication is one in which the sender does not check the existence of the receiver before sending. It is analogous to sending letters through the post office without verifying the correct receiving address.

Though SMDS is a reliable and high-speed solution, it is quite expensive. It has been largely replaced by newer technologies such as multiprotocol label switching (MPLS) and IP-based telecommunications.

Share this:

Connect with us

Email Newsletter

Join thousands of others with our weekly newsletter

The 4th Era of IT Infrastructure: Superconverged Systems
The 4th Era of IT Infrastructure: Superconverged Systems:
Learn the benefits and limitations of the 3 generations of IT infrastructure – siloed, converged and hyperconverged – and discover how the 4th...
Approaches and Benefits of Network Virtualization
Approaches and Benefits of Network Virtualization:
Businesses today aspire to achieve a software-defined datacenter (SDDC) to enhance business agility and reduce operational complexity. However, the...
Free E-Book: Public Cloud Guide
Free E-Book: Public Cloud Guide:
This white paper is for leaders of Operations, Engineering, or Infrastructure teams who are creating or executing an IT roadmap.
Free Tool: Virtual Health Monitor
Free Tool: Virtual Health Monitor:
Virtual Health Monitor is a free virtualization monitoring and reporting tool for VMware, Hyper-V, RHEV, and XenServer environments.
Free 30 Day Trial – Turbonomic
Free 30 Day Trial – Turbonomic:
Turbonomic delivers an autonomic platform where virtual and cloud environments self-manage in real-time to assure application performance.