Optimal provisioning of light-trails for optical storage area networks | |
| Author | Phay Thet Lwin |
| Call Number | AIT RSPR no.TC-06-03 |
| Subject(s) | Storage area networks (Computer networks) Optical communications |
| Note | A research study submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Research studies project report ; no. TC-06-03 |
| Abstract | Storage area networks (SANs) are potential applications of current optical communications. Contemporary SANs over optical networks use the optical layer for pure transport with minimal intelligence, leading to over-provisioning and high cost. Light-trail technology can play a role in extending SANs into the wide area networks (WANs). Since a light-trail is an optical path that allows multiple nodes along its route to communicate in one direction, this multi-node bus-like structure allows efficient aggregation of backup data on the way to the data center without the need of expensive optical and electronic switches. In the other direction, a light-trail allows multicasting of recovery data from the data center to all the nodes along its route. We investigate optimal provisioning of light-trails in SANs with general mesh topologies. We formulate the problem in general as an Integer Linear Programming (ILP) optimization problem whose objective is to minimize the maximum link load, yielding high wavelength utilizations. For specific results, we solve the formulated ILP problem for a national SAN designed based on the geography of Myanmar. We vary the locations of the data center and investigate the amount of capacities required for different locations. We observe that locations that require the minimum number of wavelengths are the nodes with high node degrees in the SAN topology |
| Year | 2006 |
| Corresponding Series Added Entry | Asian Institute of Technology. Research studies project report ; no. TC-06-03 |
| Type | Research Study Project Report (RSPR) |
| School | School of Engineering and Technology (SET) |
| Department | Department of Information and Communications Technologies (DICT) |
| Academic Program/FoS | Telecommunications (TC) |
| Chairperson(s) | Poompat Saengudomlert ; |
| Examination Committee(s) | Erke, Tapio J. ;Teerapat Sanguankotchakorn ; |
| Scholarship Donor(s) | AIT Fellowship; |
| Degree | Research Studies Project Report (M. Eng.) - Asian Institute of Technology, 2006 |