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Researchers demonstrate a different view of SDN

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November 12, 2014

New Zealand and American researchers have recently demonstrated a different view of SDN, creating a test network that spanned three border gateway protocol (BGP) domains and two countries as well.

Calling it the first “Internet-Scale” software defined network (SDN), the Kiwi research network REANNZ, America's ESnet research network, and Corsa Technology joined forces to implement an SDN that joined together ESnet at Berkeley and REANNZ's Wellington facility.

Google's research deployment at New Zealand's Victoria University in Wellington was also part of the project as well.

At the ESnet node, Corsa's DP-6420 640 Gbps data plane acted as the OpenFlow packet forwarder, using the open source Vandervecken SDN controller which uses RouteFlow and the Quagga software routing suite.

Data transport came from California's CENIC research network, the PacificWave peering exchange, and Australia's AARNET.

As REANNZ's media release notes depicts, the demonstration “reveals the potential for a full internet-scale routing to be successfully set up over an international network of mixed SDN and non-SDN autonomous systems.”

The group hopes to attract other campuses to the network, under an international project called Treehouse.

REANNZ's CEO Steve Cotter said that “establishing an end-to-end SDN BGP, the multi-AS network is an important milestone in the development of next-generation IP networks and peering fabrics”.

ESnet CTO Inter Monga said the demonstration shows off how SDN challenges such as policy-based routing, multi-domain peering and interoperation can be solved.

Source: The SSRC.

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