X.M. Niu, W.D. Zhong, and G.X. Shen (Singapore)
IP over optical networks, optical cross-connect, lightpath,
connection admission control.
We propose and investigate different connection
admission control (CAC) policies for the connection
establishment of label switched paths (LSPs) in IP over
optical networks. We examine the effect of the number of
add/drop ports of optical cross-connects (OXCs) on the
network performance for two different network
topologies. Simulation results show that the policy of
establishing LSP connections first in the optical layer
achieves a better network performance. It is shown that
the minimum number of add/drop ports required for
OXCs to achieve a good network performance depends on
the number of the wavelengths carried on each fiber link,
the traffic load and the network topology.