Gary W. Atkinson

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—The recent advances in generalized multiprotocol label switching/multiprotocol label switching (GMPLS/MPLS) and extensive study and understanding of packet-over-optical network architecture have made it possible to manage the resources of the packet network and underlying optical transport network in an interoperable manner. This opens up the possibility(More)
Recent advances in generalized multiprotocol label switching (GMPLS) [1,12] and the extensive study and understanding of packet-over-optical network architecture, has made it possible for a single integrated control plane to manage the resources of the packet network and underlying optical transport network in an unified manner. This opens up the(More)
We present an analytical model to estimate the expected minimum numbers of network elements required to support traffic demands in a multilayer service transport network for the case where grooming of demands into channels is permitted at all nodes. This new scalable formulation expands upon earlier models and makes use of global expectation values, the(More)
— A novel joint multilayer restoration scheme for IP-over-DWDM networks is proposed, where the restoration algorithm manages network resources from both the IP layer and the optical layer in a synergistic manner. Since IP router ports are typically more expensive than optical switch ports, the essence of the approach is to attempt to reuse IP service ports(More)
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