Chongyang Xie

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The advance reservation of network connections is an area of growing interest and a range of service models and algorithms have been proposed to achieve various scheduling objectives, i.e., including optimization based strategies and heuristic schemes. Now given the time-shifted nature of future requests, rerouting strategies have also been considered to(More)
Advances in SONET/SDH technologies have introduced novel features for improved services mapping and provisioning, enabling many new avenues for new Carrier Ethernet support. However Ethernet-over-SONET studies have mostly focused on provisioning point-to-point Ethernet private line offerings. This paper considers the more challenging case of provisioning(More)
Recent studies on inter-domain DWDM networks have focused on topology abstraction for state summarization, i.e., transforming a physical topology to a virtual mesh, tree, or star network. Although these schemes give very good inter-domain blocking reduction, associated inter-domain routing overheads are significant, particularly as the number of domains and(More)
notably, the ubiquity of Ethernet data interfaces on most computing gears has generated immense commercial interest in extending Ethernet services beyond the traditional local area network (LAN) space and on into larger metro and wide area domains [1]. Furthermore, many applications are also demanding much improved carrier-grade service qualities for these(More)