PROCEEDINGS ARTICLE | November 19, 2009
Proc. SPIE. 7633, Network Architectures, Management, and Applications VII
KEYWORDS: Optical fibers, Lithium, Switching, Interfaces, Networks, Wavelength division multiplexing, Control systems, Optical networks, Performance modeling, Floods
A reconfigurable protection is extended in ASON survivability testbed SURBED, the performance and extra overhead
are presented and also compared with several survivability techniques (1+1, shared mesh, rerouting, etc) in SURBED.
Pre configured protection cycles (p-cycle) is a kind of preconfigured protection mechanism that can have mesh-like
resource efficiency and ring-link protection speed. But under multi-region survivable network, the topology and resource
information is not always available due to policy reasons or other else, so distributed approach with agent negotiation is
attractable. As the dimensions of WDM optical network grows larger and larger, it tends to be a mesh structure. Based
on SURBED, we take extensive simulation to investigate the performance of different signaling strategies by multiregion
agent negotiations. Unlike previous work, we focus on the reconfiguring process rather than the switching over
operation of control plane in ASON. The backbone is overlaid, in which most of devices are IP router networks. Routers
are interconnected by fibers or SDH or WDM links. It is the same with non-reconfigured p-cycle, the reconfiguration
need a criterion, and here we use the network real-time performance as a reconfiguration trigger to take actions on pcycle
reconfiguration.
