Abstracting network state in Software Defined Networks (SDN) for rendezvous services

Gurbani, Vijay K.; Scharf, Michael P.; Lakshman, T. V.; Hilt, Volker; Marocco, Enrico

doi:10.1109/icc.2012.6364858

Cited by 27 publications

(20 citation statements)

References 6 publications

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“…Since the SDN paradigm emerged, some authors have stated that ALTO fits perfectly into the SDN environment, where network state abstractions are envisaged [173]. They argue that ALTO can be used to provide network information to SDN applications able to use different replicas of the same resource to provide the service, which they call rendezvous applications.…”

Section: Mobilementioning

confidence: 99%

“…Regarding the optimality, the reviewed literature shows that ALTO can be used to maximise network utilisation and to improve other TE-related parameters in a wide range of scenarios, including DC networks [173], WAN [175] or mobile networks [179]. However, the coarse granularity of the technology, limited to IPv4 or IPv6 addresses and prefixes, impacts directly on the multi-path computation capabilities and the re-optimisation [112].…”

Section: Contributions Of A-cpi Protocols To Tementioning

confidence: 99%

See 1 more Smart Citation

A Survey on the Contributions of Software-Defined Networking to Traffic Engineering

Mendiola

Astorga

Jacob

et al. 2017

IEEE Commun. Surv. Tutorials

167

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Since the appearance of OpenFlow back in 2008, Software-Defined Networking (SDN) has gained momentum. Although there are some discrepancies between the standards developing organisations working with SDN about what SDN is and how it is defined, they all outline Traffic Engineering (TE) as a key application. One of the most common objectives of TE is the congestion minimisation, where techniques such as traffic splitting among multiple paths or advanced reservation systems are used. In such a scenario, this manuscript surveys the role of a comprehensive list of SDN protocols in TE solutions, in order to assess how these protocols can benefit TE. The SDN protocols have been categorised using the SDN architecture proposed by the Open Networking Foundation (ONF), which differentiates among Data-Controller Plane Interfaces, Application-Controller Plane Interfaces and Management Interfaces, in order to state how the interface type in which they operate influences TE. In addition, the impact of the SDN protocols on TE has been evaluated by comparing them with the Path Computation Element (PCE)based architecture. The PCE-based architecture has been selected to measure the impact of SDN on TE because it is the most novel TE architecture until the date, and because it already defines a set of metrics to measure the performance of TE solutions. We conclude that using the three types of interfaces simultaneously will result in more powerful and enhanced TE solutions, since they benefit TE in complementary ways.

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Section: Mobilementioning

confidence: 99%

Section: Contributions Of A-cpi Protocols To Tementioning

confidence: 99%

A Survey on the Contributions of Software-Defined Networking to Traffic Engineering

Mendiola

Astorga

Jacob

et al. 2017

IEEE Commun. Surv. Tutorials

167

View full text Add to dashboard Cite

show abstract

“…It introduces a corresponding end‐user API. ALTO hosts aggregated information to which each controller has a link. Its main goal is to guide applications to select one out of several hosts capable of providing the desired resource.…”

Section: Related Workmentioning

confidence: 99%

A flexible information service for management of virtualized software‐defined infrastructures

2016

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SUMMARYThere is a major shift in the Internet towards using programmable and virtualized network devices, offering significant flexibility and adaptability. New networking paradigms such as Software-Defined Networking (SDN) and Network Function Virtualization (NFV) bring networks and IT domains closer together using appropriate architectural abstractions. In this context, new and novel Information Management features need to be introduced. The deployed Management and Control Entities (MCEs) in these environments should have a clear, and often global, view of the network environment and should exchange information in alternative ways (e.g. some may have real-time constraints, while others may be throughput sensitive). Our work addresses these two network management features. In this paper we define the research challenges in information management for virtualized highly dynamic environments. Along these lines, we introduce and present the design details of the Virtual Infrastructure Information Service (VIS), a new management information handling framework that: (i) provides logicallycentralized information flow establishment, optimization, coordination, synchronization and management with respect to the diverse MCE demands, (ii) is designed according the characteristics and requirements of SDN and NFV, and (iii) inter-operates with our own virtualized infrastructure framework. Evaluation results demonstrating the flexible and adaptable behavior of VIS and its main operations are included in the paper.

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“…Gurbani et al proposed in [2] the application of ALTO service in the SDN application layer. They argue that the ALTO protocol is a well-defined and mature solution that provides powerful abstraction of network map and network state that can be leveraged by distributed services in SDNs.…”

Section: Alto-sdn Use Casementioning

confidence: 99%

“…The integration of ALTO service in SDNs (ALTO-SDN) has been proposed originally by Gurbani et al in [2]. Then, ALTO-SDN use cases have been proposed by Xie et al [3], as discussed in Section II-D.…”

Section: Introductionmentioning

confidence: 99%

Application-layer traffic optimization in software-defined mobile networks: A proof-of-concept implementation

Faigl

Péter

Schulcz

2014

2014 16th International Telecommunications Network Strategy and Planning Symposium (Networks)

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Integration of application layer traffic optimization (ALTO) in software-defined mobile networks could have several benefits for orchestration of endpoint selection for distributed services. ALTO can provide guidance, e.g., in the redirection of end users to appropriate in-network cache, content distribution network server or virtual network function instance during service chaining. ALTO service provides appropriate level of abstraction of network and cost maps, enforcing the policies of mobile network operator and optionally other actors, but keeping the privacy of network topology information. SDN controllers can enforce flow redirection and can dynamically provide abstracted network and cost maps to ALTO server. In this paper we present the operation of ALTO in software-defined networks from the point of view of mobile network operators, and describe our proof-of-concept implementation.

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Abstracting network state in Software Defined Networks (SDN) for rendezvous services

Cited by 27 publications

References 6 publications

A Survey on the Contributions of Software-Defined Networking to Traffic Engineering

A Survey on the Contributions of Software-Defined Networking to Traffic Engineering

A flexible information service for management of virtualized software‐defined infrastructures

Application-layer traffic optimization in software-defined mobile networks: A proof-of-concept implementation

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