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Traffic grooming technique is one of the important candidates to save energy for networks. In order to minimize the energy consumption using Integer Linear Program (ILP) or Mixed Integer Linear Program (MILP), the assumption has to be made that all the connection requests are accepted in the IP over WDM network. However, a connection request may be blocked in a real network. In this paper, a bi-objective...
Concurrent Multipath Transfer (CMT) using multiple paths for simultaneous parallel transmission is a promising technology in next generation mobile networks, especially for bandwidth-hungry services. Due to the multi-homing feature of Stream Control Transmission Protocol (SCTP), researchers proposed to extend it to support CMT in order to distribute packets within the same flow over independent homogeneous...
To reduce handoff latency (resulting in packet losses) and packet transfer delay (due to triangular routing) in NEMO Basic Support Protocol (NBSP), we propose Fast and Route Optimized NEMO (FRONEMO), which brings in the concept of IP pre-fetching and advance-registration to acquire care-of-address for the anticipated future cells. Also, FRONEMO uses the prefix delegation technique in route optimization...
Storage Area Networks (SAN) are the leading storage infrastructure in modern data centers. A traditional SAN deployment relies on the Fibre Channel Protocol (FCP) over an over-engineered and expensive Fibre Channel network to provide lossless communication and predictable performance. Alternatives were proposed to reduce the deployment cost: (1)iSCSI over Ethernet, and (2) Fibre Channel over Ethernet...
Wireless Embedded Internet aims for efficient connectivity for embedded devices to the internet. This requires the embedded devices to run IPv6 protocol. The 6LoWPAN was introduced to enable IPv6 internet connectivity for WPAN. Enabling IPv6 in wireless, small size, low power, low rate, limited memory and limited computation capabilities devices, with a limited frame size, is not directly applicable...
Multi field packet classification is the enabling function for many novel and emerging network applications. Exponential growth of Internet traffic and classification rule sets demand novel hardware based architectural approaches to packet classification. Even though this is an immensely studied area, packet classification that supports scalability in both line rates and rule sets is scarce. In this...
An architecture of WinPcap based virtual NIC driver is proposed for developing embedded network applications. It makes it possible to develop applications with real network traffic using simulation environment in PC rather than the embedded hardware, reduce development cycles while keeping the cost down. A test method with the tool of Iperf is proposed to test the throughput, packet loss rate for...
Wireless mesh network (WMN) forms a wireless backbone which extend the coverage area via multi-hop relay function. The performance of WMNs can be further boosted by employing multiple gateways. In this paper, we address the implementation issues for deploying WMN test bed with multiple gateways and propose a channel load aware airtime(CL_AIR) metric based path and gateway selection scheme to balance...
In recent years, several TCP congestion control algorithms have been proposed to increase the ability of TCP in high-speed and long distance networks. One of TCP implementations, which in MANET, opened new challenges for those algorithms to demonstrate the stability, scalability, and efficiency of the mechanism. This paper compared two TCP congestion control algorithms, namely Cubic TCP and Yeah TCP...
Cloud networking imposes new requirements in terms of connection resiliency and throughput among virtual machines, hypervisors and users. A promising direction is to exploit multipath communications, yet existing protocols have a so limited scope that performance improvements are often unreachable. Generally, multipathing adds signaling overhead and in certain conditions may in fact decrease throughput...
Recently, the Graphics Processing Unit (GPU) has been proved to be an exciting new platform for software routers, providing high throughput and flexibility. However, it is still a challenging task to deploy some core routing functions into GPU-based software routers with anticipatory performance and scalability, such as IP address lookup. Existing solutions have good performance, but their scalability...
We introduce Snap, a framework for packet processing that outperforms traditional software routers by exploiting the parallelism available on modern GPUs. While obtaining high performance, it remains extremely flexible, with packet processing tasks implemented as simple modular elements that are composed to build fully functional routers and switches. Snap is based on the Click modular router, which...
The SIP(Session Initiation Protocol) is the core control protocol of the Next Generation Networks(NGN), which is used for initiating, modifying and tearing down multimedia sessions on IP data network. Because the SIP server is the core facility of NGN, its realization is especially important. One way to realize the SIP server is the proxy server, which mainly provides routing service. Namely, it ensures...
Cloud networking imposes new requirements in terms of connection resiliency and throughput among virtual machines, hypervisors and users. A promising direction is to resort to multipath communications, yet existing protocols still struggle to take advantage of the path diversity offered by IP networks. Multipath TCP (MPTCP) can create several TCP subflows on different interfaces and concurrently forward...
Future of IP addressing is totally dependent on IPv6 rather than IPv4 to assure the Quality of Service (QoS) requirements and IPv6 have noteworthy advantages over present IPv4. Presently, the conversion mechanisms in Dual Stack Transition Mechanism (DSTM) is taking bit more time, which hampers the overall performance of the network. In this paper we have reduced the time delay of data packets transmission...
Low-dimensional k-ary n-cubes were the most popular topologies in parallel computers, and they are still gaining a great interest in the context of on-chip networks. Clustered networks have been suggested to further reduce the diameter of low-dimensional k-ary n-cubes such as mesh and torus. This paper studies the performance merits of clustering with torus topology in terms of average message latency,...
In this paper, we proposed a parallel IP address lookup architecture, which is a novel concept based on graphics processing unit (GPU) via Compute Unified Device Architecture (CUDA). Device function in GPU only performs IP address lookup. Host function is exploited to construct and update the data structure of IP address lookup. Both host and device functions can be executed simultaneously to fully...
IPSec (IP Security) is a robust technique for securing communications over the Internet. Due to security algorithms used, transferring data using IPSec is known to be significantly slow. In this paper using a test bed environment for a site to site IPSec, we present new results on performance of IPSec for both IPv4 and IPv6 using Fedora 15 operating system and wireless network. Compared to open system,...
This study presents a broad selection of methods and techniques for data transfers, starting with the TCP/IP protocol, its main enhancements, new non TCP protocols, and the class of applications and libraries able to sustain massive bulk transfers in HBDP networks. Distinctive features and comparison based on performance, effectiveness, efficiency and fairness are emphasized in each case. As a result,...
In the "Youtube Era", mobile consumption of video, such as Video on Demand (VoD) and User Generated Content (UGC), has been steadily increasing. However, mobile networks are showing to be unprepared for such phenomenal traffic volume, whereas the devices' multiple interfaces are being exploited to address this problem. As such, the interest in offloading techniques has significantly increased,...
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