[Show abstract][Hide abstract] ABSTRACT: A new analysis model in which the link time delay is taken into account is proposed to investigate ASON blocking probability. By NS2 simulation, how the routing protocol such as OSPF and OSPF-TE influence the blocking probability is discussed. The result reveals that the OSPF-TE cannot reduce the whole ASON network blocking probability but it can reduce the connection lose and improve the network performance.
No preview · Article · Oct 2006 · Proceedings of SPIE - The International Society for Optical Engineering
[Show abstract][Hide abstract] ABSTRACT: There are many factors which may effect network blocking probability in automatically switched optical network (ASON), such as call rate, average connection holding time, bandwidth etc. In this paper, the ASON network is simulated by Network Simulator 2 (NS2) and two uniform models which contain these factors are proposed to investigate ASON blocking probability. One model is focused on the call characteristic and another model is focused on the resource occupation. The simulation result shows that the two models can reflect ASON network blocking well. Other factors which may influence ASON blocking probability but cannot put into the models are also discussed, including: link time delay, control plane topology and transport plane topology. These models and factors can give an overall description of network blocking in ASON
[Show abstract][Hide abstract] ABSTRACT: In this paper, dynamic OVPN service based on optical OBS technology is proposed and analyzed from prospective view of ASON. With the proposed ASON-OBS -ext architecture, it is also possible to solve the common "contention resolution" problem of OBS network with priority scheme and JIT-RSVP-TE joint scheme. Also, OBS node structure with GSMP protocol is proposed with the consideration of ASON.