Virtual Routers as a Service: The Routeflow Approach Leveraging Software-Defined Networks

ABSTRACT The networking equipment market is being transformed by the need for greater openness and flexibility, not only for research purposes but also for in-house innovation by the equipment owners. In contrast to networking gear following the model of computer mainframes, where closed software runs on proprietary hardware, the software-defined networking approach effectively decouples the data from the control plane via an open API (i.e., OpenFlow protocol) that allows the (remote) control of packet forwarding engines. Motivated by this scenario, we propose RouteFlow, a commodity routing architecture that combines the line-rate performance of commercial hardware with the flexibility of open-source routing stacks (remotely) running on general purpose computers. The outcome is a novel point in the design space of commodity routing solutions with far-reaching implications towards virtual routers and IP networks as a service. This paper documents the progress achieved in the design and prototype implementation of our work and outlines our research agenda that calls for a community-driven approach

Load Balancing Algorithms In Software Defined Network

Compared with the traditional networks, the SDN networks have shown great advantages in many aspects, but also exist the problem of the load imbalance. If the load distribution uneven in the SDN networks, it will greatly affect the performance of network. Many SDN-based load balancing strategies have been proposed to improve the performance of the SDN networks. Therefore, in this paper a finding form comprehensive review help to improve further understanding of lead b balancing algorithms in SDN

A Logically Centralized Approach for Control and Management of Large Computer Networks

Management of large enterprise and Internet Service Provider networks is a complex, error-prone, and costly challenge. It is widely accepted that the key contributors to this complexity are the bundling of control and data forwarding in traditional routers and the use of fully distributed protocols for network control. To address these limitations, the networking research community has been pursuing the vision of simplifying the functional role of a router to its primary task of packet forwarding. This enables centralizing network control at a decision plane where network-wide state can be maintained, and network control can be centrally and consistently enforced. However, scalability and fault-tolerance concerns with physical centralization motivate the need for a more flexible and customizable approach. This dissertation is an attempt at bridging the gap between the extremes of distribution and centralization of network control. We present a logically centralized approach for the design of network decision plane that can be realized by using a set of physically distributed controllers in a network. This approach is aimed at giving network designers the ability to customize the level of control and management centralization according to the scalability, fault-tolerance, and responsiveness requirements of their networks. Our thesis is that logical centralization provides a robust, reliable, and efficient paradigm for management of large networks and we present several contributions to prove this thesis. For network planning, we describe techniques for optimizing the placement of network controllers and provide guidance on the physical design of logically centralized networks. For network operation, algorithms for maintaining dynamic associations between the decision plane and network devices are presented, along with a protocol that allows a set of network controllers to coordinate their decisions, and present a unified interface to the managed network devices. Furthermore, we study the trade-offs in decision plane application design and provide guidance on application state and logic distribution. Finally, we present results of extensive numerical and simulative analysis of the feasibility and performance of our approach. The results show that logical centralization can provide better scalability and fault-tolerance while maintaining performance similarity with traditional distributed approach

Virtual Routers As A Service: The Routeflow Approach Leveraging Software-defined Networks

The networking equipment market is being transformed by the need for greater openness and flexibility, not only for research purposes but also for in-house innovation by the equipment owners. In contrast to networking gear following the model of computer mainframes, where closed software runs on proprietary hardware, the software-defined networking approach effectively decouples the data from the control plane via an open API (i.e., OpenFlow protocol) that allows the (remote) control of packet forwarding engines. Motivated by this scenario, we propose RouteFlow, a commodity routing architecture that combines the line-rate performance of commercial hardware with the flexibility of open-source routing stacks (remotely) running on general purpose computers. The outcome is a novel point in the design space of commodity routing solutions with far-reaching implications towards virtual routers and IP networks as a service. This paper documents the progress achieved in the design and prototype implementation of our work and outlines our research agenda that calls for a community-driven approach. © 2011 ACM.3437Future Internet Forum (FIF),Asia Future Internet (AsiaFI),Korea Internet and Security Agency (KISA),Korea Institute of Science and Technology Information (KISTI),Korea Institute of Information Science and Engineering (KIISE)Azodolmolky, S., Integrated OpenFlow - GMPLS Control Plane: An Overlay Model for Software Defined Packet over Optical Networks (2011) ECOC'11, , SepBolte, M., Sievers, M., Birkenheuer, G., Niehörster, O., Brinkmann, A., Non-intrusive virtualization management using libvirt (2010) DATE '10Bozakov, Z., Architecture and Algorithms for Virtual Routers as a Service (2011) IWQoS, , JuneCaesar, M., Casado, M., Koponen, T., Rexford, J., Shenker, S., Dynamic route recomputation considered harmful (2010) SIGCOMM CCR, 40, pp. 66-71. , AprilCasado, M., Koponen, T., Ramanathan, R., Shenker, S., Virtualizing the network forwarding plane (2010) PRESTO '10Grasa, E., MANTICORE II: IP Network as a Service pilots at HEAnet, NORDUnet and RedIRIS (2010) TERENA Networking Conference 2010Feamster, N., Balakrishnan, H., Rexford, J., Shaikh, A., Van Der Merwe, J., The case for separating routing from routers (2004) FDNA '04Greenberg, A., Hjalmtysson, G., Maltz, D.A., Myers, A., Rexford, J., Xie, G., Yan, H., Zhang, H., A clean slate 4D approach to network control and management (2005) Computer Communication Review, 35 (5), pp. 41-54. , DOI 10.1145/1096536.1096541Greene, K., TR10: Software-Defined Networking (2009) MIT Technology ReviewGude, N., NOX: Towards an operating system for networks (2008) SIGCOMM CCR, 38. , JulyHamilton, J., Networking: The Last Bastion of Mainframe Computing, , http://perspectives.mvdirona.com/2009/12/19/ NetworkingTheLastBastionOfMainframeComputing.aspxKeller, E., Rexford, J., The 'Platform as a Service' model for networking (2010) INM/WREN 10, , AprKhosravi, H., Anderson, T., Requirements for separation of ip control and forwarding (2003) RFC, 3654. , NovLakshman, T.V., The SoftRouter architecture (2004) HotNets-IIIMcKeown, N., Anderson, T., Balakrishnan, H., Parulkar, G., Peterson, L., Rexford, J., Shenker, S., Turner, J., Openflow: Enabling innovation in campus networks (2008) SIGCOMM CCR, 38, pp. 69-74. , MarchNascimento, M.R., Rothenberg, C.E., Salvador, M.R., Magalhães, M.F., QuagFlow: Partnering Quagga with OpenFlow (2010) SIGCOMM CCR, 40, pp. 441-442. , AugustRamjee, R., Separating control software from routers (2006) COMSWARE'06Sarrar, N., Feldmann, A., Uhlig, S., Sherwood, R., Huang, X., (2010) EuroView 2010, , FIBIUM - Towards Hardware Accelerated Software Routers. (poster session), AugustSplit Architecture Carrier Grade Networks, , http://www.fp7-sparc.eu/Koponen, T., Onix: A distributed control platform for large-scale production networks (2010) OSDI '10, , Oc