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Current network switches cannot be programmed and flexibly controlled. Then, developers of a data center application system, which is composed of software and computers connected with a network, are not able to optimize behavior of network switches on which the application is running. On the other hand, Deeply Programmable Network (DPN) switches can completely analyze packet payloads and be profoundly...
The application scope of VPN is increasing day by day as the organizations are creating private networks through public Internet using VPN tunneling instead of leased line. VPN protocols are classified into site-to-site and remote access VPN which exhibits different set of characteristics in terms of security mechanism. But there is no VPN preferences based on the organizational application requirements...
This paper presents the architecture, functionality, and performance of the SpW Interface Node IP which constitutes a configurable IP Core from which non-SpW experts can tailor a customized SpW interface for integration into their developments. The IP core offers numerous configurability options and is also expandable to include additional blocks as the SpW protocol family evolves.
In this paper, we describe a new generic interface to a software-defined switch allowing the controller to inform the switch of the existence of an external function. Through the same generic interface, the switch can call for the external function during its internal forwarding processes. Such innovating interface allows the network operator to add new functionalities to the switch, in the form of...
We had proposed a distributed storage system which relocates data blocks autonomously among the storage nodes. Generally, owing to requirement of exchanging the management information frequently, such autonomous block migration tends to increase network traffic. Our previous work has presented a scheme to reduce network traffic by appending the management information onto an iSCSI short packet. In...
Man-in-the-Middle (MITM) attack enables an attacker to monitor the communication exchange between two parties by directing the traffic between them to pass through the attacker's machine. Most existing schemes for discovering MITM attack focus on detecting the mechanism used to direct the traffic through the attacker machine. This paper presents a new detection scheme that is based on matching the...
In this paper, we propose a distributed storage system which relocates data blocks autonomously among the storage nodes. In the system which is composed of heterogeneous storage nodes, there are performance gaps among the storage devices. The storage tiers are made by such gaps in the system. When frequently accessed data blocks are placed on improper storage tier, system performance may decline....
Software-Defined Networking (SDN) is widely studied in research community. Although OpenFlow switches are considered one of the promising SDN technologies, even the latest version of OpenFlow (1.3) only handles 40 tuples including Layer 2 to Layer 4 (L2–L4) headers. However, application developers and end users may not often find "flow" based traffic control. In this paper, we propose L7...
As there is a rapid growth in use of consumer embedded products from past decade, new tendencies forecast highly the usage of heterogeneous Multi-Processor Systems-On-Chip (MPSoCs) consisting of complex integrated components communicating with each other at very high-speed rates. As MPSoCs are made up of hundreds of cores, Intercommunication requirements will not be feasible using a single shared...
Autonomic management capabilities of the Future Internet can be provided through a recently proposed service architecture called NetServ. It consists of the interconnection of programmable nodes which enable dynamic deployment and execution of network and application services. This paper shows how this architecture can be further improved by introducing the OpenFlow architecture and implementing the...
Growing concern for reduced power dissipation, cost and latency demands in next generation Data Centers (DC) motivates us to revisit header optimizations. Headers contribute to about 30–40% of DC traffic and is responsible for equal proportion of consumed power. This amounts to significant overhead on per byte transfer of payload. In the past, highly inflexible switches have limited the focus of header...
Over the past 20 years, IPv4 network development for the computer to make a great contribution, however, gradually revealed its flaws. IPv6 to replace IPv4 with its inevitability. However, because these two protocols are very different. And the transition to equipment and software with updates and upgrades, and how to minimize the cost to achieve the campus network from IPv4 to IPv6 transition is...
Due to the lack of multicast services in the Internet, applications based on single source multiple destinations transfers such as video conferencing, IP radio, IPTV must use unicast or application layer multicast. This in turn has several well-known drawbacks. A basic insight is that this type of traffic exhibits high redundancy with temporal clustering of duplicated packets. The redundancy originates...
A new cloud computing architecture introducing customization of network functions based on active network is studied. To flexibly reconfigure the network functions depending on the requirement of each cloud computing environment, network functions are deployed on a virtual machine. Customizable sequences of network functions are essential for cloud computing environments. The content-based packet...
Driven by the idea to converge to the Internet of things, we searched within the course of a FP6-project for a suitable mechanism to transport IP packets on ad-hoc wireless personal area networks (WPANs). Prior work was already done and so we decided to start with RFC4944, which was probably the best working solutions for this problem. But since the design of RFC4944 was only targeted to a point-to-point...
Current DVB-RCS systems present an IPv4-interface and no commercial RCS systems have yet offered IPv6 support. This paper explores encapsulation issues for next generation DVB-RCS terminals that will support IPv6. It assess two alternatives: the Unidirectional Lightweight Encapsulation (ULE) and the Generic Stream Encapsulation (GSE). These are shown to improve efficiency and performance and have...
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