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Software defined networking for the private cloud network bottleneck?
This article is part of the Network Evolution issue of October 2012 Vol 3, No. 5
You've heard it before, but it bears repeating: Networks are bottlenecks in the private cloud. Server and storage technologies have evolved into pooled resources that cloud administrators can spin up on the fly, but networks remain manual. To be more agile, private cloud networks must be virtualized, and software defined networking offers a cost-effective method for getting there. "wEnterprises need to be like service providers and react as quickly as they can for internal customers. They need to enable self-service IT. The biggest roadblock to that is networking," said Ben Cherian, chief strategy officer with Midokura, a Japanese startup that is developing SDN-based network virtualization technology. "Armies of CCIEs are running around making little changes to switches and routers that have requisition times of weeks," he said. Meanwhile, in many cases cloud providers can click a button to make changes. Essentially, SDN technology decouples and centralizes the control plane from the data-forwarding plane of individual network ...
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Features in this issue
Software-defined networking could solve the problems that Ethernet and IP networking pose to Network-as-a-Service by centralizing a connection permission policy.
To handle mass server virtualization and Infrastructure-as-a-Service, IT teams need network virtualization with fluid provisioning. Will that require a network hypervisor?
Manual networks stifle the otherwise automated private cloud. Can software defined networking and network virtualization solve the problem?
News in this issue
Network virtualization tool FlowVisor boosts software defined networking by allowing easy slicing of physical networks into multiple logical pieces.
The software-defined networking battle boils down to one basic difference in strategy: open source or proprietary. Which side will win? Maybe neither one.