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This paper introduces Fibre Channel about its layers, topologies and class services. Emphasis is placed on the discussion of device login procedure and frame format in different topologies. Based on Xilinx FPGA chip, the design and implementation of the system uses the hardware and software cooperation model. In the experiment, we connect the system with Qlogic2340F and Brocade 200E Fabric switch...
In the recent years, the use of real-time Ethernet protocols becomes more and more relevant for time-critical networked industrial applications. In this context, this paper presents a method to compute the worst-case packet delays on switched Ethernet. Based on an evaluation of the packet delays at each switch port and the network topology, we construct a weighted directed graph that allows to find...
This paper introduces the Axon, an Ethernet-compatible device for creating large-scale datacenter networks. Axons are inexpensive, practical devices that are demonstrated using prototype hardware. Functionally, Axons replace Ethernet switches and maintain full compatibility with existing Ethernet hosts. Between themselves, however, Axons transparently use source-routed Ethernet. This unlocks many...
InfiniBand networks are aimed to fulfill increasing communication demand of parallel applications in high performance clusters. However, the dynamic behavior of communication load may cause bottlenecked link(s) which lead to message congestion. Congestion spreading increases latency and reduces network throughput causing important performance degradation. In this paper, we propose a congestion control...
The agile all-photonic network (AAPN) is a network that uses time division multiplexing (TDM) to better utilize the bandwidth of WDM systems. AAPN uses agile all-photonic switches as advances in the photonic switching technology made the design of all-photonic devices with switching latency in the sub-microseconds feasible. It proposes a simplified overlaid star network architecture that is deployable...
Most network operators have considered reducing Label Switched Routers (LSR) label spaces (i.e. the number of labels that can be used) as a means of simplifying management of underlaying Virtual Private Networks (VPNs) and, hence, reducing operational expenditure (OPEX). This letter discusses the problem of reducing the label spaces in Multiprotocol Label Switched (MPLS) networks using label merging...
This paper describes a new path computation model in Multi-protocol Label Switching (MPLS) and Generalized MPLS (GMPLS) networks. It introduces a path computation element (PCE), which is functionally separate from label switching routers (LSRs). The Path Computation Element (PCE) is an entity that is capable of computing a network path or route based on a network graph, and applying computational...
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