Access "Software-defined networking could make Network-as-a-Service a reality"
This article is part of the October 2012 Vol 3, No. 5 issue of Are SDN solutions the answer to private cloud bottlenecks?
Buyers are already sold on Infrastructure-as-a-Service, Platform-as-a-Service and Software-as-a-Service, but what about Network-as-a-Service? Despite the fact that the cloud is created in and connected through the network, we hear little or nothing about a new network paradigm for the cloud. Network-as-a-service is not only real, but it is likely to become universal. However, it may take software-defined networking (SDN) in the form of OpenFlow to make that happen. Cloud computing deploys a public pool of resources that can be provisioned on demand. They also must provide connections to its users, storage access, inter-process communications, and resource allocation or management. Typical IP and Ethernet network technologies have shortfalls when it comes to the cloud, due to security, QoS, and operational cost scalability. At the heart of those limitations is the notion of “permissive connectivity.” IP and Ethernet presume that all endpoints can be addressed by others. This presumption of universal connectivity makes it harder to manage security and engineer... Access >>>
Premium Content for Free.
Software-defined networking could make Network-as-a-Service a reality
by Tom Nolle, Contributor
Software-defined networking could solve the problems that Ethernet and IP networking pose to Network-as-a-Service by centralizing a connection permission policy.
Software defined networking for the private cloud network bottleneck?
by Shamus McGillicuddy
Manual networks stifle the otherwise automated private cloud. Can software defined networking and network virtualization solve the problem?
- Software-defined networking could make Network-as-a-Service a reality by Tom Nolle, Contributor
Do we need a network hypervisor for virtualization?
by David Davis, Contributor
To handle mass server virtualization and Infrastructure-as-a-Service, IT teams need network virtualization with fluid provisioning. Will that require a network hypervisor?
- Do we need a network hypervisor for virtualization? by David Davis, Contributor
Building on OpenFlow, FlowVisor offers path towards open network virtualization
by Michael Morisy, Feature Writer
Network virtualization tool FlowVisor boosts software defined networking by allowing easy slicing of physical networks into multiple logical pieces.
Welcome to the software-defined networking holy war
by Rivka Gewirtz Little, Executive Editor
The software-defined networking battle boils down to one basic difference in strategy: open source or proprietary. Which side will win? Maybe neither one.
- Building on OpenFlow, FlowVisor offers path towards open network virtualization by Michael Morisy, Feature Writer
More Premium Content Accessible For Free
The nature of the branch office is changing. Previously, branch offices were small remote sites with groups of workers that had a single focus, such ...
As if network management isn’t hard enough, now engineers must find ways to manage physical networks, virtual networks and SDN environments. In this ...
Every access network now must be engineered to enable, manage and secure BYOD. In this edition of Network Evolution, we offer insight into ...