A Peek At Google's Software-Defined Network 54
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samzenpus
from the check-it-out dept.
from the check-it-out dept.
CowboyRobot writes "At the recent 2013 Open Networking Summit, Google Distinguished Engineer Amin Vahdat presented 'SDN@Google: Why and How', in which he described Google's 'B4' SDN network, one of the few actual implementations of software-defined networking. Google has deployed sets of Network Controller Servers (NCSs) alongside the switches, which run an OpenFlow agent with a 'thin level of control with all of the real smarts running on a set of controllers on an external server but still co-located.' By using SDN, Google hopes to increase efficiency and reduce cost. Unlike computation and storage, which benefit from an economy of scale, Google's network is getting much more expensive each year."