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Protecting control planes in networking hardware from high rate packets is a critical issue for networks under operation. One common approach for conventional networking hardware is to offload expensive functions onto hard-wired offload engines as ASICs. OpenFlow networks are expected to provide greater network control flexibility by an open interface to the packet-forwarding plane and by centralized...
This paper presents Blender, a framework that enables network operators to improve tenant performance by tailoring the network's behavior to tenant needs. Tenants may upgrade their provisioned portion of the network with specific features, such as multi-path routing, isolation, and failure recovery, without modifying hosted application code. Network operators may differentiate themselves based on...
Internet users are interested in content regardless of its location; however, the current client/server architecture still requires requests to be directed to a specific server. Information-centric networking (ICN) is a recent vein that relaxes this requirement through the use of name-based forwarding, where forwarding decisions are based on content names instead of IP addresses. Despite previous...
The literature review shows a trend to arbitrary number of multi-field packet classification is evolved from standard 5-tuple matching to support new applications like OpenFlow switch which processes upto 15 fields [1]. However, arbitrary number of multi-field packet classification becomes a great challenge regarding to performance, memory requirement, and update cost. In this paper, a high performance...
Energy efficient routers (EERs) are promising devices to achieve green communications for ISP to save energy and cost. However, deploying this kind of routers may introduce severe accumulated packet delay, especially for high-end optical routers. In this paper, we present three contributions to solve the above issue with dynamically balancing QoS and the energy consumption, while preserve the real...
In this paper, we propose a scalable routing and admission control model for Software Defined Networks (SDN). We use pre-established multi-path (PMP) model to increase routing scalability and reduce admission control time.
In this paper we present an architecture for a secure embedded system that is resilient to tempering and code injection attacks and offers anti-piracy protection for the software and hardware Intellectual Property (IP). We incorporate digital Physical Unclonable Functions (PUFs) in an authentication mechanism at the machine code level. The digital PUFs are used to de-obfuscate, at run time, a firmware...
Archiving of the Internet traffic is essential for analyzing network events in the field of network security and network forensics. The bitmap index is widely used to achieve fast searching in archival traffic data requiring a large storage space. As current state-of-art, WAH, PLWAH and COMPAX are proposed for compressing bitmap indexes. In this paper, a new bitmap index compression scheme, named...
Software Defined Networking (SDN) has become a popular paradigm for centralized control in many modern networking scenarios such as data centers and cloud. For large data centers hosting many hundreds of thousands of servers, there are few thousands of switches that need to be managed in a centralized fashion, which cannot be done using a single controller node. Previous works have proposed distributed...
Measurement is at least half of network management. Many data centers require huge capital investments to build larger networks with higher link speeds; yet provide surprisingly little visibility into the network and traffic. Switch vendors often treat measurement as a second-class citizen, devoting most resources to control functions. Operators have limited control over what (not) to measure, and...
Communications systems make heavy use of FPGAs; their programmability allows system designers to keep up with emerging protocols and their high-speed transceivers enable high bandwidth designs. While FPGAs are extensively used for packet parsing, inspection and classification, they have seen less use as the switch fabric between network ports. However, recent work has proposed embedding a network-on-chip...
Named Data Networking (NDN) uses content names as routing entries, and thus the scalability of NDN routing is of primary concern. NDN allows in-network caching as a built-in functionality; however, if network nodes make caching decisions individually, duplicate copies of the same content may exist among nearby nodes. To address these problems, we propose Coordinated Routing and Caching (CoRC) that...
Flexible datacenters rely on high-bandwidth server-rack fabrics to allocate their distributed computing and storage resources anywhere, anyhow, and anytime demanded. We describe the multicast architecture of a distributed server-rack fabric, which is arranged around a spine-leaf topology and connects 640 Ethernet ports running at 100G. To cope with the immense fabric speed, we resort to hierarchical,...
As processor power density increases, thermal and power control becomes critical for packet processing on a processor. In “run-to-finish” applications, power consumption is stable and temperature simply rises to saturation point and then stabilizes. But, network applications feature ON/OFF execution pattern, which causes frequent temperature and power consumption changes in the processor. We propose...
Energy efficient router is one of the most important and promising devices in the roadmap towards green communication and networking. In recent years, automatical power scaling adapting with real-time network traffic in a router has been proved to be practical on real hardware, which is an implementation under the traffic aware philosophy. In this paper, we further explore this direction, and present...
Heterogeneous and asymmetric computing systems are composed by a set of different processing units, each with its own unique performance and energy characteristics. Still, the majority of current network packet processing frameworks targets only a single device (the CPU or some accelerator), leaving other processing resources idle. In this paper, we propose an adaptive scheduling approach that supports...
Wireless sensor networks (WSNs) are used in the many critical applications, such as, military, health, and civil applications. Sometimes such applications require that the WSNs to be randomly deployed in inaccessible terrains such as a remote territory. As a result, the sensors are left unattended and become a potential target for an adversary. Therefore, we propose a highly Secure and Efficient Key...
In this paper we introduce WASP, a general communication layer for hybrid wireless networks where multiple networks are used to complement each other. In our system, we capitalize on an infrastructure with a ubiquitous, wide-area network to help enable the creation of a local mobile ad-hoc network in an efficient, scalable, evolvable, and manageable way. In particular, in an architecture inspired...
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