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This paper proposes Floodless Carrier-grade Scalable Ethernet Architecture (FCSEA) as a completely floodless enhancement of EtherProxy to meet scalability and protection switching requirements of Ethernet in carrier networks. FCSEA uses a priority based cache retention principle, exploits attempt from end node/host to verify connectivity during commissioning and intercepts dynamic configuration (DHCP)...
End-to-end network latency has become an important issue for parallel application on large-scale high performance computing (HPC) systems. It has been reported that randomly-connected inter-switch networks can lower the end-to-end network latency. The trade-off is a large amount of routing information. For irregular networks, minimal routing is achieved by using routing tables for all destinations...
Due to the increased demand for internet services, the challenges that large data centers must handle are bigger. Therefore, in recent years the development of networks defined by software (SDN) has caught the attention of the scientific community, mainly because of the flexibility it presents in its model of centralized management, which facilitates the development of solutions according to demand...
We propose a vertex-centric distributed resource orchestration algorithm for finding all feasible mappings of a service function chain in multi-domain networks. Simulation results show superior efficiency and scalability for computing large service function chain requests.
There is a huge number of SDN experimental platforms available such as simulators, emulators and actual testbeds, each of them having different performance metrics. This paper presents a series of performance tests, that can be performed in each of the available platforms, in order to evaluate and rank them in various performance categories. These tests cover performance categories such as experiment...
Computation of service function chains in multi-domain networks is critical for enabling the wide deployment of network function visualization for providing end-to-end network services. In this paper, we present a vertex-centric distributed orchestration framework for multi-domain networks, in which physical infrastructure information is maintained locally within each domain without infrastructure...
Quality of Information (QoI) provides a context-dependent measure of the utility that a network delivers to its users by incorporating non-traditional information attributes. Quickly and easily predicting performance and limitations of a network using QoI metrics is a valuable tool for network design. Even more useful is an understanding of how network components like topology, bandwidth, protocols,...
Pub/Sub communication model becomes a basis of various applications, e.g. IoT/M2M, SNS. These application domains require new properties of the Pub/Sub infrastructure, for example, supporting a large number of devices with widely distributed manner, handling emergency messaging with priority control and so on. In order to meet the demands, we proposed Software Defined Network Aware Pub/Sub (SAPS)...
The SDNs promise is to provide flexibility, programmability and scalability, while reducing the infrastructure costs to Networks Operators (NO) by centralizing and softwarizing the control plane. Nonetheless, this centralization process goes against the distribution of the control that prevailed, until now, in telecommunication networks. Despite the hopes it raises, it brings new issues mainly related...
Mobile Ad Hoc Networks (MANETs) are increasingly being used in various applications for civilian, commercial, and military uses. However, unique characteristics of MANETs introduce several challenges such as routing and mobility management. Nodes frequent movements make routing more difficult due to frequent topology changes. Dynamic Source Routing (DSR) routing protocol is among the common routing...
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