Ashwin Gumaste

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Given the increasing adoption of DWDM networking technology, there is now a growing need to address distributed inter-domain lightpath provisioning issues. Although inter-domain provisioning has been well studied for packet/cell-switching networks, the wavelength dimension presents many additional challenges. To address this challenge, a detailed(More)
We propose a solution for implementing a conceptual framework for IP centric communication in the optical domain. The solution, termed Lighttrails, is a combination of node architecture and protocol for realizing efficient optical communications from IP bursts to dynamic lightpaths. It is a paradigm shift from conventional optical communication modes, in(More)
A light-trail is a generalization of a lightpath such that multiple nodes can take part in communication along the path. Light-trail based networks lead to dynamic provisioning and optical multicasting while deploying a pragmatic low-cost platform. Dynamic connections can be setup and torn down over semi-permanent light-trails facilitating(More)
International Telecommunication Union — Telecommunication Standardization Sector (ITU-T) G.709or ITU-T G.872-based optical transport network (OTN) [1, 2] is perhaps one of the most important standard technologies that govern the transport of data through the Internet. OTN has evolved as a telecommunication class transport mechanism that does away with some(More)
In this paper we address the problem of constrained optimization (ILP formulation) and propose a set of heuristic algorithms for assigning light-trails [1–4,7,10] to WDM ring networks to facilitate IP centric dynamic communication at the optical layer. A light-trail is a generalization of a lightpath such that multiple nodes can take part in communication(More)
Light-trails (LTs) have been proposed as a solution for optical networking to provide support for emerging services such as video-on-demand, pseudo-wires, data-centers, etc. To provision these services we require features such as dynamic bandwidth provisioning, optical multicasting, sub-wavelength grooming and a low-cost hardware platform-all of which are(More)
Light-trails communication [1] proposes a solution for implementing a conceptual framework for IP centric communication in the optical domain which is a combination of node architecture and protocol for realizing efficient optical communications from IP bursts to dynamic lightpaths. In this paper we introduce a Light-trails solution that is applicable to(More)
The rapid growth of IP centric communication in worldwide networks and the parallel mass deployment of fiber based WDM networks have propelled IP over WDM being considered as an eventual solution for bandwidth on demand to customers. Contemporary optical networks are, however, based on lightpath communication and a lightpath represents end-to-end optical(More)
A new scalable optical network infrastructure SMART is proposed based on light-trails and hypernetwork architecture. The underlying physical network of SMART is a reconfigurable WDM network with reconfigurability distributed over network nodes. The reconfigurable node architecture is capable of dynamically setting up, modifying, and tearing down connections(More)