Existing hierarchical routing schemes, employing distance vector and link state routing algorithms, require the exchange of routing information for the construction and maintenance of routing tables [1]. As networks increase in size, the memory requirements for the routing tables and the time taken to search the tables increase proportionally [11]. Further, as the popularity of computer network...

This paper presents a novel countermeasure against Distributed Denial-of-Service (DDoS) attacks that we call the rouTer poRt mArking and paCKet filtering (TRACK), which includes the functions of both IP traceback and packet filtering. TRACK is a comprehensive solution that is composed of two components: a router port marking module and a packet filtering module. The former is a novel packet mar...

A new proposal for an optical packet-routed network based on a distributed router architecture in a WDM network is described. Buffering, scheduling and wavelength assignment functions are carried out in routers located at the edge of the network. The destination address is encoded by a given wavelength and allows wavelength-routing in optical core routers. This approach avoids processing and ad...

This paper investigates contention resolution schemes for optical packet switching networks from an end-to-end perspective, where the combined exploitation of both core routers and edge routers are highlighted. For the optical-core network, we present the architecture of an optical router to achieve contention resolution in wavelength, time, and space domains. Complementing the solution involvi...

A novel Dynamically Reconfigurable Optical Packet Switch (DROPS) that combines both spectral and spatial switching capabilities is proposed and experimentally demonstrated for the first time. Compared with an Arrayed Waveguide Grating Router (AWGR), the added spatial switching capability provided by the microelectromechanical systems (MEMS) enables dynamically reconfigurable routing that is not...

Abstrac: We present simulation results of an ultrafast alloptical interferometric switching devices based upon the resonant nonlinearity in a semiconductor optical amplifier (SOA). We have investigated two configurations: one based upon a Sagnac interferometer and one based upon a MachZehnder interferometer. The switches have been used to model a 1x2 all-optical OTDM router. Simulation results ...

In this paper, we demonstrate single-channel operation of the first InP monolithic tunable optical router (MOTOR) chip designed to function as the packet forwarding engine of an all-optical router. The device has eight-input and eight-output ports and is capable of 40-Gb/s operation per port with bit-error rates below 1E-9. MOTOR integrates eight wavelength-tunable differential Mach–Zehnder sem...

The recent advances in generalized multiprotocol label switching/multiprotocol label switching (GMPLS/MPLS) and extensive study and understanding of packet-over-optical network architecture have made it possible to manage the resources of the packet network and underlying optical transport network in an interoperable manner. This opens up the possibility for coordinated actions across the two n...

Given a parallel or distributed system, the interconnection network ensures the communication between the processors, the terminal nodes. Each intermediate node has a router, a dedicated co-processor which forwards the messages between processors through the links of the underlying topology. The routers run a distributed algorithm which specifies the way to go from a node of the network to anot...

A SpaceWire network comprises SpaceWire links, nodes and routers. The nodes are the functional units that wish to use the onboard communication services of the SpaceWire network and are fitted with one or more SpaceWire interfaces. These units are connected together directly using point-to-point SpaceWire links or indirectly via SpaceWire routers. SpaceWire interfaces, links and routers are the...