Analysis of impact of control-plane on an efficient switching paradigm: OBS of IP/WDM networks

In high speed optical burst switched (OBS) networks two parallel networks, namely a data and a control network (plane), suffers from contention, insufficient offset-time, average burst length and scheduling operations causing excessive delay in processing of control packets in an electronic core-node controller, thus as a result incur higher blocking probability, inefficient bandwidth utilization, etc. In this paper, to address this, we provide an analytical modeling, detailed analysis of control plane and its impact on OBS performance. Based on above, we select optimal performance oriented parameters such as average burst length, sufficient offset-time duration and scheduling and reservation operations in order to show that the impact of control-plane is negligible (as compared to data-plane) on OBS based system performance.