4.10
OpenState: Programming Platform-independent Stateful OpenFlow Applications Inside the Switch
1.Software Defined Networking envisions smart centralized controllers governing the forwarding behavior of dumb low-cost switches.
2.As argued above, our belief is that a major shortcoming of OpenFlow is its inability to permit the programmer to deploy states inside the device itself.
3.Moreover, a viable solution must come along with two fundamental attributes.
4.Our work mainly focuses on this second aspect:...
5.Rather, our main contribution consists in the proposal of...
As a compromise
Nevertheless
4.11
OpenBox: A Software-Defined Framework for Developing, Deploying, and Managing Network Functions
1.OpenBox effectively decouples the control plane of NFs from their data plane, similarly to SDN solutions that only address the network’s forwarding plane.
2.Second, a logically-centralized OpenBox controller is able to merge logic of multiple NFs, possibly from multiple tenants, and to use a network-wide view to efficiently deploy and scale NFs across the network data plane.
3.Finally, OpenBox instances constitute OpenBox’s data plane and are implemented either purely in software or contain specific hardware accelerators (e.g., a TCAM).
4.···and our experiments indeed show a significant improvement of the network per- formance when using OpenBox.
5.Moreover, OpenBox readily supports...
4.12
OpenBox: A Software-Defined Framework for Developing, Deploying, and Managing Network Functions
1.Software-defined networking (SDN) has been a tremendous game-changer, as it decouples the control plane of network forwarding appliances (e.g., switches and routers) from their data plane.
2.However, in current SDN solutions, such as OpenFlow [15], only the forwarding appliances are software-defined, while the other data plane appliances continue to suffer from all of the above problems.
3.Traditionally, each middlebox was marketed as a single piece of hardware, with its proprietary software already installed on it, for a high price.
4.Our OpenBox framework addresses the challenges of ... , whose highlights are presented in this paper.
4.14
Network Virtualization: State of the Art and Research Challenges
Recently network virtualization has been pushed forward by its proponents as a long-term solution to the gradual ossification problem faced by the existing Internet and proposed to be an integral part of the next-generation networking paradigm.
By allowing multiple heterogeneous network architectures to cohabit on a shared physical substrate, network virtualization provides flexibility, promotes diversity, and promises security and increased manageability.
However, many technical issues stand in the way of its successful realization. This article investigates the past and the state of the art in network virtualization along with the future challenges that must be addressed to realize a viable network virtualization environment.
4.15
High Speed Network Traffic Analysis with Commodity Multi-core Systems
Multi-core systems are the current dominant trend in computer processors.
exploit
legacy code, resource competition
The result is that packet capture, the core operation in every network monitoring application, may even experience performance penalties when adapted to multi-core architectures.
This work presents common pitfalls of network monitoring applications ...
We showcase that we can achieve high packet capture performance on modern commodity hardware.