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We propose a quality of service (QoS) aware resource allocation algorithm for virtual machines (VMs) in cloud servers. The proposed scheme consists of two parts: a service profiler that describes the relationship between QoS and resource utilization, and a resource controller that determines an appropriate VM resource configuration. The performance of the proposed VM resource allocation scheme is...
Infrastructure visualization based on monitored resource status is essential for the effective operation of modern SDN (Software-Defined Networking)-enabled cloud. More specifically, collecting and visualizing visibility information about both physical & virtual (p+v) types of resources is one of key requirement for multi-site cloud operators. However, most existing visualization tools fall short...
Cloud computing paradigm has been driving the cloud-leveraged refactoring of existing ICT services including VoIP. In this paper, we design and prototype secured mobile VoIP services with open-source Asterisk PBX software by employing Docker lightweight virtualization for mobile devices. We also experimentally verify the quality of secured voice and the associated communication delay over distributed...
This paper shows a prototyping and operating effort for a federated multisite SDN-Cloud playground that leverages open-source software such as OpenStack cloud, ONOS SDN controller, and Quagga router. A SDN-based federation possibility for distributed multisite cloud is verified by providing an open playground over three international sites under separate administrative domains.
SmartX-mini playground is a miniaturized IoT-Cloud environment, where DevOps-based automation can be practiced to develop and operate various IoT-Cloud services. Enabling visibility over the targeted playground is critical for the automated operation and effective resource utilization. Thus, in this paper, by leveraging various open-source software tools over small-size boxes, we design and prototype...
This paper proposes a software defined storaging method to converge the network virtualization technique and the RAID of distributed hybrid cloud storage environment. The proposed method designs software-defined based storage which it apply a flexible control and maintenance of distributed hybrid cloud storages. In addition, the method overcomes the restricted of physical storage capacity and cut...
Resource-level monitoring and visualization are important operation activities for OF@TEIN (OpenFlow @ Trans-Eurasian Information Network) SDN-enabled multi-site cloud. The SDN/Cloud integrated environment demands considerably different resource-level visibility solution from traditional ones. A distinctive, component-based, data-oriented approach is required for resource-level visibility of OF@TEIN...
SmartX playgrounds for multi-site OpenStack-based cloud (e.g., OF@KOREN and OF@TEIN) have brought several operational challenges including resource-aware orchestration. The default OpenStack Nova scheduler is not aware of locality (i.e., affinity) aspects for multi-site distributed cloud. To partially address this limitation, we discuss about resource-aware orchestration for multi-site cloud, where...
Recently diverse testbeds are built to experiment and verify new service ideas on SDN/Cloud-leveraged networking. In the early stage of verification, easy and speedy execution of experiments is required. Thus, in this paper, we introduce S-Box virtualized playground, where lightweight experiments are automatically executed only with the virtualized resources in a single box. The proposed S-Box concept...
The VoIP technology is being revisited to support diversified services and mobile computing has been changing to mobile cloud computing paradigm. In this paper, we design and implement cloud-leveraged secured voice services, enabled by the combination of open-source software PBX (private branch exchange), shared hardware platform, and mobile devices. We also test and verify the end-to-end delay of...
In this paper, we discuss about how to orchestrate service function chaining (SFC) with distributed cloud VMs (virtual machines). By introducing an automated tool for graph-based SFC over cloud-based infrastructure, we attempt to satisfy service realization challenges such as large-scale support and underlay-aware improvement.
In this paper, we discuss about a futuristic design for multi-level connectivity that plays the pivotal role in enabling IoT services employing the hyper-convergent SmartX Boxes.
In this paper, we propose the security tactics for secured cloud computing resources. It is composed by multistage anomaly detection scheme and honeypot in outside of cloud computing, and attribute-based access control in inside of cloud computing for secured cloud computing resource in order to support safety future services.
Future Internet Groups have been studying networking virtualization and computing virtualization for Test bed. Specially, GENI have adopted cloud computing as computing virtualization technique. In this paper, we describe the multistage anomaly detection scheme of anomaly and symptoms of DDoS attacks for secured cloud computing resource. This scheme is composed by 3 stages. Monitoring stage performs...
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