World's first development of bio-inspired 'Yuragi' algorithm for network virtualization

Jan 24, 2013
Credit: 2013 Nippon Telegraph and Telephone Corporation

Nippon Telegraph and Telephone Corporation, Osaka University, and The University of Electro-Communications have developed a biologically-inspired "Yuragi (fluctuations)" algorithm for virtual network control technology. By deploying the newly developed technology, researchers can provide the rapid recovery of a network service in case of unexpected disasters or congestions.

At the upcoming JGN-X demonstration event sponsored by the National Institute of Information and Communications Technology (NICT), from February 5-7, 2013, researchers plan to demonstrate a congestion avoidance experiment using the developed technology. In the demonstration, video streaming traffic will be transferred from Okinawa to Sapporo on JGN-X, and developers will confirm the from a congestion caused by additional background traffic.

The recent rapid spread of cloud computing and emerging applications such as M2M/IoT has led to sudden traffic demand changes. As multiple logical networks are operated on a common physical network infrastructure, it has become increasingly important to operate such networks in the stable manner in order to maintain the stability of each service from the view point of BCP (business continuity planning).

To cope with these issues, multiple virtual networks, each of which corresponds to a service network or a customer network, should be constructed on a common physical ; at the same time, those networks should support the customization of network function and operation policies. Moreover, it is also necessary to accommodate unexpected sudden traffic demand changes imposed by cloud computing or emerging applications.

Thus, the research and development of a network virtualization technology based on the Yuragi algorithm, which is originally proposed by Osaka University, under the collaboration of NTT, Osaka University, and UEC.

Credit: 2013 Nippon Telegraph and Telephone Corporation

As each virtual network is able to autonomously compute nearly optimal route or network topology, the computation time is much faster compared to conventional optimization technologies and ensure adaptability to unexpected environmental changes. This enables rapid network recovery that satisfies practical requirements in case of a large-scale disaster or congestion. Osaka University carried out the theoretical study and developed control algorithms, while NTT improved control algorithm to be applied for an operational network and developed network control server to demonstrate the developed technology.

Osaka University developed a scheme for stabilizing the behavior of multiple virtual networks through the feedback of other virtual network status, while NTT developed a resource access mechanism that isolates the behavior of a specific from others. Those two technologies enable efficient network resource usage by adequately distributing traffic load. The LLR scheme keeps the information of top-rank links, ordered by link load, in a ranking table. Only the information that relates to the ranking table is advertised. With the LLR scheme, the number of advertisements is 78% reduced, comparing to the general OSPF-TE .

Explore further: Creating the fastest outdoor wireless Internet connection in the world

Provided by Nippon Telegraph and Telephone Corporation

5 /5 (1 vote)
add to favorites email to friend print save as pdf

Related Stories

On the path to 1 terabit-per-second networks

Mar 01, 2012

As IP traffic continues to increase and the router interface rate extends beyond 100 gigabits-per-second (Gb/s), future optical networks—ones that would achieve unprecedented speeds of 1 terabit-per-second (Tb/s)—will ...

Recommended for you

Cyclist's helmet, Volvo car to communicate for safety

16 hours ago

Volvo calls it "a life-saving wearable cycling tech concept." The car maker is referring to a connected car and helmet prototype that enables two-way communication between Volvo drivers and cyclists for proximity ...

California puzzles over safety of driverless cars

17 hours ago

California's Department of Motor Vehicles will miss a year-end deadline to adopt new rules for cars of the future because regulators first have to figure out how they'll know whether "driverless" vehicles ...

Britain's UKIP issues online rules after gaffes

17 hours ago

UK Independence Party (UKIP), the British anti-European Union party, has ordered a crackdown on the use of social media by supporters and members following a series of controversies.

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.