Now-a-days data centers are experiencing rapid increase in network traffic and the number of servers in racks due to exponential increase of data, at the same time they have to cope with the demands of cloud computing and several emerging web applications. Keeping all these in mind we also have to consider compatibility when we will interconnect several data centers. Present data centers networ...

This paper proposes a two-stage optical packet switch with second stage of recirculate switch of FDL to reduce the number of the FDL used in the switch for contention resolution. The contention resolution scheme with priority in packet releasing from FDL is tested in the two-stage switch for performance evaluation. Simulation result shows that zero packet loss rate achievable with < 0.8 for 32x...

This paper proposes a novel traffic engineering method for improving the throughput characteristics of optical packet forwarding in an optical packet / path integrated network. This method is based on bypassing optical packets rejected from a highly-loaded optical packet switch onto one of the adjacent packet switches via an optical path to increase the network throughput. Since the formation o...

This work introduces a significant improvement for optical packet switching network based on OC processing. The key point of this method is the generalization of the optical label switching concept to forward optical packet without label swapping and O/E/O procedure. Our proposed method simplifies the design of switch devices in optical domain and packet forwarding process which speeds up packe...

This paper describes new optical switching architectures supporting asynchronous variable-length packets. Output line contention is resolved by optical delay line buffers. By introducing a WDM technology, parallel buffer can be equipped with multiple wavelengths on the optical delay line buffer. Using an ul-trafast photonic label processing technique, an implementation of our architecture would...

Recently, optical packet switch architectures, composed of devices such as optical switches, fiber delay lines, and passive couplers, have been proposed to overcome the electromagnetic interference (EMI), pinout and interconnection problems that would be encountered in future large electronic switch cores. However, attaining the buffer size (buffer depth) in optical packet switches required in ...

Operation without packet alignment of an all-optical packet switch is proposed and predicted feasible through a detailed trafic analysis. Packet alignment units are eliminated resulting in a simple switch architecture while optimal traffic perfarmancc is maintained through t ~ i e ~ e x ~ b i ~ ~ ~ ~ r o v ~ d e d by WDM.

This paper presents an architecture and implementation issues of an “almost-all” optical packet switch that does not rely on recirculating loops for storage implementation. The architecture is based on two rearrangeably nonblocking stages interconnected by optical delay lines with different amounts of delay. We investigate the probability of loss and the switch latency as a function of link uti...

In this paper we discussed different switch architectures. We focus mainly on optical buffering. We investigate an all-optical buffer architecture comprising of cascaded stages of quantum-dot semiconductor optical amplifier-based tunable wavelength converters, at 160 Gb/s. We also propose the optical buffer with multi-wavelength converters based on quantum-dot semiconductor optical amplifiers. ...