Several optical network switching paradigms have been under intensive research
to support rapidly increasing bandwidth requirements. Of all these paradigms, optical burst
switching (OBS) is a promising switching paradigm for the next-generation Internet
infrastructure. Despite the significant contributions of OBS to high speed networks such as
dynamic connection setup and strong separation between data and control plane, there are
several issues that are to be resolved because the present OBS research studies have many
differences and thus need further study. In this paper, some of author’s own past researches
have been summarized to overcome few issues of OBS; related to network architectures,
contention, burst assembly, congestion, complex scheduling schemes, quality of service
(QoS), burst dropping , routing etc.
