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OpenFlow/Software-Defined Networking (SDN) is a new networking paradigm that virtualizes network infrastructure by decoupling the control and data plane logic of traditional network devices. The controller of SDN has the overall look about network topology and hence provides flexibility to network operators to implement its own routing approaches. However, it could not control the way client works...
In the traditional Publish/Subscribe (Pub/Sub) paradigm, most of the responsibilities lie with the broker, thus making it burdened. It also takes a considerable amount of time to first route the publications and subscriptions towards the broker, and then to further route the notifications to the subscribers. This leads to delays in data delivery. Besides delay and bandwidth consumption, the number...
The emergence of Software Defined Network(SDN) gives the demand of big data and network management a chance. SDN separates the control and forwarding in traditional network through OpenFlow protocol. In the software-defined network, SDN controller is an important integral part that is the core of SDN. In this paper, firstly we summarize the common SDN controller, and choose two popular, wider using...
Multipath TCP is an extension to TCP protocol that allows a single connection to be split across multiple paths. MPTCP overcomes few limitations of TCP thereby offering added benefits like increased throughput and network resource utilization and resilience to possible link failures. Different data paths over the network face different end-to-end path delay. The performance of MPTCP is affected not...
This paper addresses one serious SDN-specific attack, i.e., data-to-control plane saturation attack, which overloads the infrastructure of SDN networks. In this attack, an attacker can produce a large amount of table-miss packet_in messages to consume resources in both control plane and data plane. To mitigate this security threat, we introduce an efficient, lightweight and protocol-independent defense...
Network Virtualization Overlays (NVO3) provides multi-tenancy services in cloud data centers with existing networking equipment. IP tunneling is an essential technology to logically separate each virtual traffic, in particular, Stateless Transport Tunneling (STT) is considered to achieve better performance using TCP Segmentation Offload (TSO) feature. Currently, there is no openly available implementation...
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