Performance Evaluation of Two-Stage Shared FDL Optical Packet Switch using Contention Resolution Scheme with Packet Releasing Priority

TL;DR

This paper evaluates a two-stage shared FDL optical packet switch with a contention resolution scheme prioritizing packet releasing, demonstrating zero packet loss at certain load levels through simulation.

Contribution

It introduces a novel two-stage switch architecture with a priority-based contention resolution scheme to improve performance and reduce FDL usage.

Findings

Achieves zero packet loss at load < 0.8 for 32x32 switch

Reduces FDL usage compared to traditional designs

Demonstrates effective contention resolution with priority scheme

Abstract

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 {\i}< 0.8 for 32x 32 two-stage switch.