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Deep programmability of dataplane pipelines is one of the tenets of the evolving Software Defined Networking (SDN) paradigm. Despite recent efforts on high performance programmable devices, achieving fully programmability (protocol independent) of heterogeneous dataplane implementations still pose numerous challenges. The P4 language is emerging as a strong candidate top-down approach to describe...
This work shows how the performance of a network function can be estimated with an error margin that is small enough to properly support orchestration of network functions virtualization (NFV) platforms. Being able to estimate the performance of a virtualized network function (VNF) on execution hardware of various types enables its optimal placement, while efficiently utilizing available resources...
In this demo we show a fully-optimized, high-performance OpenFlow datapath with virtual execution environment support. With this we want to show that an OpenFlow based, configurable, flexible software datapath can perform as well as purpose-written software and its performance is also comparable to hardware solutions. This way flexibility and performance will come hand in hand unlike today where one...
Discontinuous Reception (DRX) in Long Term Evolution (LTE) is used to reduce the energy consumption when there is no data transfer for a given user. Current DRX works on a per-UE basis but works with fixed DRX. That is, DRX does not take into account that different services and different terminals have different requirements on Quality of Experience (QoE). We propose an efficient adaptive DRX method...
Telecom providers struggle with low service flexibility, increasing complexity and related costs. Although "cloud" has been an active field of research, there is currently little integration between the vast networking assets and data centres of telecom providers. UNIFY considers the entire network, from home networks up to data centre, as a "unified production environment" supporting...
Software-Defined Networking (SDN) promises the vision of more flexible and manageable networks, but requires certain level of programmability in the data plane. Such a flexible, programmable data plane implementation is OpenFlow (OF) which these days is seen as primary model of SDN data plane. In this paper we focus on the limitations of OF in packet switching performance. We share some measurement...
Channel switching in HSPA networks is used to reduce the channel occupancy when there is no data transfer for the given user, this way reducing battery consumption. This paper is the first dealing with another important aspect that is the CPU load on the radio network controller (RNC) caused by channel switching. This is an optimization task, in which both the channel switching and staying on the...
In this paper we introduce a novel framework for traffic identification that employs machine learning techniques focusing on the estimation of multiple traffic influencing factors. The effect of these factors is handled with the training of several machine learning models. We utilize the outcome of the multiple models via a recombination algorithm to achieve high overall true positive and true negative...
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