FRAMINGHAM -- OpenFlow promises to make networking more programmable, and one early user is reaping the initial benefits.Genesis Hosting Solutions of Lake Zurich, Ill., implemented OpenFlow in ...

Earlier versions of OpenFlow from 1.0 through 1.2 relied on single-table implementations, i.e., using TCAMs only for flows. The optimization pretty much meant that a software layer would interpret the ...

OpenFlow checks certain fields in the header (the destination IP address, for example) and looks for a match in its flow tables. Having found a match, OpenFlow takes the action dictated in the table.

OpenFlow 1.0 specifies a single flow table for the switch must match on 12 fields. Because of this requirement, most early implementations used a ternary content addressable memory (TCAM) for the ...

I’ll review OpenFlow’s origins and the variety of problems it is solving, cover its current common architecture, and then look forward to why OpenFlow is such a disruptive technology that will ...