Policy-Based Admission Control in GMPLS Optical Networks
BROADNETS '04 Proceedings of the First International Conference on Broadband Networks
Policy-Based fault management for integrating IP over optical networks
IPOM'05 Proceedings of the 5th IEEE international conference on Operations and Management in IP-Based Networks
Service level agreement and provisioning in optical networks
IEEE Communications Magazine
Traffic grooming in WDM networks: past and future
IEEE Network: The Magazine of Global Internetworking
IEEE Network: The Magazine of Global Internetworking
A traffic engineering system for multilayer networks based on the GMPLS paradigm
IEEE Network: The Magazine of Global Internetworking
A review of fault management in WDM mesh networks: basic concepts and research challenges
IEEE Network: The Magazine of Global Internetworking
Optical Switching and Networking
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This work presents a discussion about policies and architecture to aggregate Internet Protocol/Multiprotocol Label Switching (IP/MPLS) traffics within lightpaths. The scenario is that of IP/MPLS client networks over an optical network. It is well known that aggregating lower traffic flows (e.g., packet-based LSPs--Label Switched Path) within higher traffic flows (e.g., lambda-based LSPs) is considered an effective way to maximize the use of the optical network resources. In this work, the policies are divided into two groups. The first one, which solely considers the class of the flow (High Priority--HP or Low Priority--LP), consists of simple policies meant to aggregate packet-based LSPs within lightpaths. In this group, the policies we have defined intend to reduce the optical network overhead to remove and reroute LP LSPs. The second group presents more sophisticated policies taking into account the possibility of having to deal with further transport faults. In this case, the grooming is better planned and the defined policies tend to reduce the negative impact when a failure is detected in the optical transport network. Our approach has been implemented to validate the policies and the results for each group are showed and discussed.