Publications
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The Limits of Architectural Abstraction in Network Function Virtualization Hasselt University
Network Function Virtualization (NFV) is the paradigm of implementing network services as a network of functions on top of commodity off-the-shelf (COTS) servers. It is of profound interest to telecommunications network operators because of the promise of bringing the economics of data centers into the network. However, existing CPU, memory, and network interface architectures cause network service performance to be sensitive both to the ...
Management and orchestration challenges in network functions virtualization University of Antwerp
Network Function Virtualization (NFV) continues to draw immense attention from researchers in both industry and academia. By decoupling Network Functions (NFs) from the physical equipment on which they run, NFV promises to reduce Capital Expenses (CAPEX) and Operating Expenses (OPEX), make networks more scalable and flexible, and lead to increased service agility. However, despite the unprecedented interest it has gained, there are still ...
Network service chaining with optimized network function embedding supporting service decompositions Ghent University
Network service chaining with efficient network function mapping based on service decompositions Ghent University
Network Service Chaining (NSC) is a service concept which promises increased flexibility and cost-efficiency for future carrier networks. The two recent developments, Network Function Virtualization (NFV) and Software-Defined Networking (SDN), are opportunities for service providers to simplify the service chaining and provisioning process and reduce the cost (in CAPEX and OPEX) while introducing new services as well. One of the challenging ...
VNF-AAP : accelerator-aware Virtual Network Function placement Ghent University
Network Function Virtualization aims to migrate packet-processing tasks from special-purpose appliances to Virtual Network Functions (VNFs) running on x86 or ARM servers. However, achieving the line-rate packet-processing for VNFs running on CPUs can be a challenging task. External hardware accelerators can be used to offload heavy-lifting tasks (e.g. en/decryption and hashing) from performance-critical VNFs.State-of-the-art VNF placement ...
Stimulating green FTTH networks using home router virtualization Ghent University
Telecom networks consume a considerable amount of electrical energy and according to the environmental guidelines, just as other businesses, telecom should aim at continuously lowering this consumption. Still in a telecom network a lot of the energy consumption is hidden under the radar, as a large part of the energy consumption is caused by the customer premises equipment (CPE), often installed by the network operator. As this equipment is ...
A Functional and Performance Benchmark of Lightweight Virtualization Platforms for Edge Computing Interuniversity Microelectronics Centre
The recent rise of edge computing and FaaS triggered a revolution in the field of software virtualization, improving performance and security. This paper benchmarks various lightweight virtualization platforms, such as microVMs and containers, in the context of edge microservices. Factors taken into account include toolchain maturity, networking capabilities, boot time, resource use, microservice performance, and ARM architecture readiness. We ...