In this paper end-to-end performance is evaluated when multiple high-speed access networks, based on the Ethernet Passive Optical Network (EPON) technology, are interconnected through an Optical Burst Switching (OBS) core network. The inter-working unit, or edge node, between these two different networks is properly studied and discussed. A time-based burst assembly algorithm is assumed, which is analyzed and dimensionedto cope with multiple EPONs. The role of a key parameter,such as the EPON cycle time used in the multiple access scheme,is assessed. Transport layer performance of the multi-EPON/OBSnetwork is evaluated through simulations with ns2. Results showthat the relationship between the EPON cycle time and the burstassembly time has a fundamental role and requires proper tuningto optimize, e.g., the TCP throughput.
End-to-End Performance of Heterogeneous Multi-EPON/OBS Networks / Casoni, Maurizio; W., Cerroni. - ELETTRONICO. - (2011), pp. 1-5. (Intervento presentato al convegno 2011 20th International Conference on Computer Communications and Networks, ICCCN 2011 tenutosi a Maui, HI, usa nel July 31-August 4 2011) [10.1109/ICCCN.2011.6005797].