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Stuart Clayman
University College London
49Publications
15H-index
994Citations
Publications 49
Newest
#1Francesco Tusa (UCL: University College London)H-Index: 11
#2Stuart Clayman (UCL: University College London)H-Index: 15
Last.Alex Galis (UCL: University College London)H-Index: 24
view all 4 authors...
This work presents the deployment of a hierarchical multi‐MANO environment for the instantiation and management of end‐to‐end 5G network services in a slice‐enabled infrastructure.
Source
#2Fabio L. VerdiH-Index: 9
Last.Stuart Clayman (UCL: University College London)H-Index: 15
view all 11 authors...
Cloud network slicing can be defined as the process that enables isolated end-to-end and on-demand networking abstractions, which: (a) contain both cloud and network resources, and (b) are independently controlled, managed and orchestrated. This paper contributes to the vision of the NECOS project and relevant platform, that aim to address the limitations of current cloud computing infrastructures to accomplish the challenging requirements of the slicing approach. The NECOS platform implements t...
Source
#1Francesco Tusa (UCL: University College London)H-Index: 11
#2Stuart Clayman (UCL: University College London)H-Index: 15
Last.Alex Galis (UCL: University College London)H-Index: 24
view all 3 authors...
Slicing is a move towards segmentation of resources and deployment of NFV for the purpose of enhanced services and applications on globally shared resources. The slicing approach in this paper considers Data Center slicing and the VIM on-demand model. We focus on the monitoring of Data Center slices, showing what is needed from the monitoring perspective and how the monitoring should be done. The proposed monitoring approach is validated on a platform that supports the on-demand creation of ligh...
Source
#1Stuart Clayman (UCL: University College London)H-Index: 15
#2Francesco Tusa (UCL: University College London)H-Index: 11
Last.Alex Galis (UCL: University College London)H-Index: 24
view all 3 authors...
This paper explores some of the mechanisms, components, and abstractions that can be utilized in order to encompass network slicing into a bigger picture for NFV delivery. In particular, we make the case for Data Center (DC) infrastructure slicing, as part of the full NFVI foundation, to ensure that the attributes prescribed to network slices are propagated into the Data Center. We show how creating a VIM (Virtual Infrastructure Manager) on-demand and dynamically allocating a new VIM for each sl...
2 CitationsSource
#1Francesco TusaH-Index: 11
#2Stuart ClaymanH-Index: 15
Last.Alex GalisH-Index: 24
view all 4 authors...
3 CitationsSource
#1Francesco Tusa (UCL: University College London)H-Index: 11
#2Stuart Clayman (UCL: University College London)H-Index: 15
Last.Alex Galis (UCL: University College London)H-Index: 24
view all 3 authors...
This paper explores new scenarios where Cloud Network Service Providers take advantage of using more flexible resource management and orchestration solutions in the form of dynamic virtualised compute, network and storage resources. The main focus of this work is to analyse how those challenges will considerably impact the requirements of the monitoring process. A framework in the context of 5G is here presented to support the dynamic on-demand management, configuration and control of a monitori...
1 CitationsSource
#1Stuart Clayman (UCL: University College London)H-Index: 15
#2Reza Shokri Kalan (Ege University)H-Index: 2
Last.Muge Sayit (Ege University)H-Index: 5
view all 3 authors...
Web-caches play an important role in the architecture of a Dynamic Adaptive Streaming over HTTP (DASH) system, which can bring video files near to the clients. In such systems, the placement of the caches affects the performance of the video streaming applications. In this paper we select the optimal network nodes for cache placement by taking into account characteristics such as the bandwidth of the paths, the places, and the number of the online clients, for a given network graph. For this pur...
1 CitationsSource
#1Leandro A. Freitas (UFG: Universidade Federal de Goiás)H-Index: 3
#2Vinícius G. Braga (UFG: Universidade Federal de Goiás)H-Index: 1
Last.Kleber V. Cardoso (UFG: Universidade Federal de Goiás)H-Index: 6
view all 7 authors...
In the context of 5G networks, the concept of network slicing allows network providers to flexibly share infrastructures with mobile service providers and verticals. While this concept has been widely investigated considering mostly the network issues, in this work we focus on a slice as a service model that takes into account the data center (DC) perspective. In particular, we propose an architecture where DC slices are created over transformable (compute and storage) resources, which can be vi...
3 CitationsSource
#1Stuart Clayman (UCL: University College London)H-Index: 15
This talk is focussed towards people in the arenas of orchestration and higher level management, where they are attempting the role out of SDN, NFV, and SFC. • It is a talk with no measurements and no experiments ! • It is not really about right / wrong, more that there are opportunities to use working and well tested concepts. • This is about a perspective from the viewpoint of operating systems and programming languages. • We need to encourage people to design / built / utilize more in the are...
#1Stuart Clayman (UCL: University College London)H-Index: 15
#2Daphne Tuncer (UCL: University College London)H-Index: 8
The trend of softwarization within networks, such as SDN, NFV, and 5G, has increased the need for a network operating system and all its associated elements. In this paper we discuss how the layering and abstractions that commonly appear within computer operating systems are missing within the domain of networking. As such, the lack of abstractions means that interacting with and managing networks has already become a difficult and sometimes cumbersome task. The softwarization process is magnify...
1 CitationsSource
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