overlay network


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overlay network

A logical network that runs on top of another network. For example, peer-to-peer networks are overlay networks on the Internet. They use their own addressing system to determine how files are distributed and accessed, thus providing a layer on top of the Internet's IP addressing.

A quality of service (QoS) system is also called an overlay network, because it uses an additional addressing mechanism that may change the route normally taken in the underlying network. See also over-the-top broadcasting and over-the-top messaging.
References in periodicals archive ?
Spurred by the observation that a few relay nodes with high betweenness centrality can provide more optimal routes for a large number of node pairs, we propose a resilient routing overlay network construction method by introducing Super-Relay nodes.
The Sixth International Conference on Peer-to-Peer Computing (P2P2006) is the most recent in a series of annual conferences concerned with overlay network technologies.
The Company offers competitive local exchange carrier services using its overlay network in Moscow, Kiev, St.
com), which has established an overlay network by peering arrangements with many major backbones, along with a network operations center that monitors backbone conditions in real time and controls their customers' routing accordingly.
Enterprises looking to extend compute capacity past their own data centers can now use the Terremark vCloud Express and VPN-Cubed to create a seamless and secure overlay network between their data center and their cloud-based assets.
The VPN-Cubed overlay network provides four key capabilities public cloud users currently cannot control: static addressing for the user's cloud devices; topology control by using VPN-Cubed managers as virtual routers; use of popular enterprise protocols like UDP Multicast for service discovery; and lastly encrypted communications between all devices on the overlay network.
The Riverbed Cascade product family is an application-aware NPM solution to leverage this performance information about overlay network and UDP-encapsulated traffic to provide comprehensive and unified visibility across the WAN, LAN, virtual overlay networks and data centers in the cloud.
DAYTON, Ohio -- STRATACACHE, a leading provider of scalable, high-performance content delivery, network acceleration and digital media solutions, today announced ActiVia SNet, a STRATACACHE network application enabling an application-level secure IP overlay network for public network content and media delivery.
Smith will disclose TippingPoint's vision for comprehensive network security via an overlay network model where attack control, application control, and access control are applied as an overlay to the existing network.
The Company offers voice, data, and Internet services to corporations, operators, and consumers using its metropolitan overlay network in major cities including Moscow, Kiev, St.
Alternatively, they can deploy a separate overlay network of dedicated security sensors, which doubles equipment costs and substantially increases ongoing maintenance expenses.
Auto-discovery capabilities speed deployment and eliminate the need for a separate overlay network.