Analysis of the End-to-End Protection and Restoration Algorithm in the IP over WDM Network
ICOIN '02 Revised Papers from the International Conference on Information Networking, Wireless Communications Technologies and Network Applications-Part I
Network Resilience in Multilayer Networks: A Critical Review and Open Issues
ICN '01 Proceedings of the First International Conference on Networking-Part 1
Survivability in IP-over-WDM networks
IP Over WDM
Practical adaptive routing schemes considering load balancing in WDM networks
HSI'03 Proceedings of the 2nd international conference on Human.society@internet
Dynamic recovery algorithm for the multiple failures in the WDM based UMTS networks
ICCSA'03 Proceedings of the 2003 international conference on Computational science and its applications: PartII
Minimum interference path selection based on maximum degree of sharing
HPCC'05 Proceedings of the First international conference on High Performance Computing and Communications
Dynamic establishment of differentiated survivable lightpaths in WDM mesh networks
Computer Communications
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Previous advances in WDM technology are now beginning to shift the focus more toward optical networking and network-level issues. Providing survivability at the optical layer is inherently attractive, but whether it makes practical sense, given similar mechanisms that are already available at the higher layers, poses serious challenges and raises many questions. Today's core network architecture model has functional overlap among its layers, contains outdated functionality, and is too slow to scale. If IP can be mapped directly onto the WDM layer, some of the unnecessary network layers can be eliminated, opening up new possibilities for developing a simple and integrated-protection/restoration scheme that can be coordinated at both the IP and WDM layers. This article presents an overview of existing optical protection/restoration schemes. Then we present a novel mesh-based hybrid optical protection scheme that utilizes multifiber physical links along with a hierarchical OXC structure. An overview of the envisioned IP-centric DWDM-based optical data network architecture is then presented. The basis of how to implement a more direct IP standard-based approach for closer and efficient IP-WDM integration is also discussed. Finally, we articulate a view of how to provide a joint protection/restoration scheme that is coordinated at both the IP and WDM layers