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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/18596

Title: The Limits of Architectural Abstraction in Network Function Virtualization
Authors: Nemeth, Balazs
Simonart, Xavier
Oliver, Neal
Lamotte, Wim
Issue Date: 2015
Publisher: IEEE
Citation: 2015 IFIP/IEEE International Symposium on Integrated Network Management (IM), p. 633-639
Abstract: 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 implementation of individual network functions, but also to their placement within an NFV platform. For this reason, emerging NFV standards will confront the challenge of exposing certain platform architectural parameters to enable services to be orchestrated in an effective manner. The goal of the paper is to show that underlying technologies must be exposed to the Orchestrator during service deployment as incorrect placement can have a very significant impact on performance. We illustrate this by describing a “proof-of-concept” implementation of Quality of Service (QoS) for a Broadband Remote Access Service (BRAS)/Border Network Gateway (BNG). Our work focuses on studying performance implications related to PCIe bandwidth constraints, Virtual Network Function (VNF) placement, message buffer (mbuf) size and memory channel utilization.
URI: http://hdl.handle.net/1942/18596
DOI: 10.1109/INM.2015.7140348
ISI #: 000380495900078
ISBN: 9783901882760
ISSN: 1573-0077
Category: C1
Type: Proceedings Paper
Validation: ecoom, 2017
vabb, 2017
Appears in Collections: Research publications

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