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 dimensioned to 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/OBS network is evaluated through simulations with ns2. Results show that the relationship between the EPON cycle time and the burst assembly time has a fundamental role and requires proper tuning to optimize, e.g., the TCP throughput.
End-to-End Performance of Heterogeneous Multi-EPON/OBS Networks / M. Casoni; W. Cerroni. - ELETTRONICO. - (2011), pp. 1-6. (Intervento presentato al convegno 20th IEEE International Conference on Computer Communications and Networks (ICCCN 2011) tenutosi a Maui, HI, USA nel July 31 - Aug. 4, 2011) [10.1109/ICCCN.2011.6005797].
End-to-End Performance of Heterogeneous Multi-EPON/OBS Networks
CERRONI, WALTER
2011
Abstract
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 dimensioned to 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/OBS network is evaluated through simulations with ns2. Results show that the relationship between the EPON cycle time and the burst assembly time has a fundamental role and requires proper tuning to optimize, e.g., the TCP throughput.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
