Advance Bandwidth Scheduling in Software-Defined Networks

Dharam, Poonam; Wu, Chase Q.; Rao, Nageswara S. V.

doi:10.1109/glocom.2015.7416950

Cited by 2 publications

(1 citation statement)

References 10 publications

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“…The authors in [23] expanded the works in [22] to exhaustively combine different path and bandwidth constraints and formulate four types of advance bandwidth scheduling problems. In [24], they resolved the problem of balancing the time cost and the network state accuracy in multiple SDN controller advance reservation environments to reduce the blocking rate. In [25], AR was deployed in a cloud computing environment to improve the resource utilization.…”

Section: Related Workmentioning

confidence: 99%

Elastic Timeslot-Based Advance Reservation Algorithm for Enterprise Video Conferencing Systems

Liao

Zhang

2020

IEEE Access

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In an enterprise network, it is common to have hundreds of video conferences held simultaneously such that a large number of video streams need to be transmitted between participants in different geographical locations. For such a large transmission demand, an advance reservation (AR) system deployed for the video conferencing system can provide quality-of-service (QoS) guarantees to users and improve the resource utilization of the network. However, the effective resource reservation strategies for a heavy traffic case still remains open. In this paper, we propose an algorithm called the elastic timeslot-based advance reservation algorithm (ETARA), which aims at improving the resource utilization and reducing the computational complexity. A new time processing method, elastic timeslot, is proposed for the time domain management. Moreover, ETARA takes not only the processing time but also the resource usage into account. Comparative simulations with the existing two popular approaches, the dynamic timeslot-based approach and timeslot-based flexible approach, have been performed in terms of the acceptance ratio and runtime. The results show that with the same acceptance ratio, the runtime of ETARA can be up to 57 times lower than that of the flexible timeslot-based approach. Though ETARA has a slightly longer runtime than the dynamic approach, the acceptance ratio of ETARA can be twice as high as that of the dynamic timeslotbased approach. INDEX TERMS Enterprise video conferencing system, advance reservation (AR), bandwidth reservation, QoS.

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Section: Related Workmentioning

confidence: 99%

Elastic Timeslot-Based Advance Reservation Algorithm for Enterprise Video Conferencing Systems

Liao

Zhang

2020

IEEE Access

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SDN‐based fault‐tolerant on‐demand and in‐advance bandwidth reservation in data center interconnects

Subedi

Nguyen

Cheriet

2017

Int J Communication

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are typically shared by multiple services through on-demand and in-advance resource reservations, resulting in varying bandwidth availability in future time periods. Such an inter-data center network provides a dynamic and virtualized environment when augmented with cloud infrastructure supporting end-host migration. In such an environment, dynamically provisioned network resources are recognized as extremely useful capabilities for many types of network services. However, the existing approaches to in-advance reservation services provide limited reservation capabilities, eg, limited connections over links returned by the traceroute over traditional IP-based networks. Moreover, most existing approaches do not address fault tolerance in the event of node or link failures and do not handle end-host migrations; thus, they do not provide a reliability guarantee for in-advance reservation frameworks. In this paper, we propose using multiple paths to increase bandwidth usage in the WAN links between data centers when a single path does not provide the requested bandwidth.Emulation-based evaluations of the proposed path computation show a higher reservation acceptance rate compared to state-of-art reservation frameworks, and such computed paths can be configured with a limited number of static forwarding rules on switches. Our prototype provides the RESTful Web service interface for link-fail and end-host migration event management and reroutes paths for all the affected reservations.

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Advance Bandwidth Scheduling in Software-Defined Networks

Cited by 2 publications

References 10 publications

Elastic Timeslot-Based Advance Reservation Algorithm for Enterprise Video Conferencing Systems

Elastic Timeslot-Based Advance Reservation Algorithm for Enterprise Video Conferencing Systems

SDN‐based fault‐tolerant on‐demand and in‐advance bandwidth reservation in data center interconnects

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