Publications de Nedeljko Vasic

Accelerating resource allocation in virtualized environments using workload classes and/or workload signatures

Dejan Novakovic, Dejan Kostic, Nedeljko Vasic, Ricardo Bianchini

Systems, methods, and apparatus for managing resources assigned to an application or service. A resource manager maintains a set of workload classes and classifies workloads using workload signatures. In specific embodiments, the resource manager minimizes ...

2013

Automatic Failure Recovery for Software-Defined Networks

Dejan Kostic, Marco Canini, Peter Peresini, Maciej Leszek Kuzniar, Nedeljko Vasic

2013

DeepDive: Transparently Identifying and Managing Performance Interference in Virtualized Environments

Dejan Novakovic, Dejan Kostic, Nedeljko Vasic, Ricardo Bianchini, Stanko Novakovic

2013

OF.CPP: Consistent Packet Processing for OpenFlow

Dejan Kostic, Marco Canini, Peter Peresini, Maciej Leszek Kuzniar, Nedeljko Vasic

This paper demonstrates a new class of bugs that is likely to occur in enterprise OpenFlow deployments. In particular, step-by-step, reactive establishment of paths can cause network-wide inconsistencies or performance- and space-related inefficiencies. Th ...

2013

DejaVu: Accelerating Resource Allocation in Virtualized Environments

Dejan Novakovic, Dejan Kostic, Nedeljko Vasic, Ricardo Bianchini

Effective resource management of virtualized environments is a challenging task. State-of-the-art management systems either rely on analytical models or evaluate resource allocations by running actual experiments. However, both approaches incur a significa ...

Acm Order Department, P O Box 64145, Baltimore, Md 21264 Usa2012

Energy-Proportional and Scalable Networks

Nedeljko Vasic

The power consumption of the Internet and datacenter networks is already significant due to a large degree of redundancy and high idle power consumption of the network elements. Therefore, dynamically matching network resources to the actual load is highly ...

EPFL2011

Identifying and Using Energy-Critical Paths

Dejan Novakovic, Dejan Kostic, Marco Canini, Nedeljko Vasic

2011

Bandwidth Adaptation in Streaming Overlays

Dejan Kostic, Nedeljko Vasic, Simon Schubert

A major challenge for real-time streaming overlays is to distribute high bit-rate streams with uninterrupted playback. Hosts usually have sufficient inbound bandwidth to support streaming, but due to the prevalence of asymmetric links in broadband networks ...

2010

Energy-Aware Traffic Engineering

Dejan Kostic, Nedeljko Vasic

Energy consumption of the Internet is already substantial and it is likely to increase as operators deploy faster equipment to handle popular bandwidth-intensive services, such as streaming and video-on-demand. Existing work on energy saving considers loca ...

2010

Simplifying Distributed System Development

Viktor Kuncak, Dejan Kostic, Maysam Yabandeh, Nedeljko Vasic

Distributed systems are difficult to design and develop. The difficulties arise both in basic safety correctness properties, and in achieving high performance. As a result of this complexity, the implementation of a distributed system often contains the ba ...

2009