The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
We highlight the advantages of dynamic wavelength allocation and path rerouting in hybrid optical flow-switched data center networks compared with static electronic packet-switched data center networks. Current electronic packet-switched networks perform routing based on lookup tables and shortest path routing over high speed optical connections. However, load balancing and path rerouting are not...
In this work, we provide design concepts of efficient physical and lightpath topology architectures for a LAN/MAN all-optical network that support optical flow switching. We found good architectures are coupled intimately with media access control protocol designs and must be optimized jointly. Two architectures that represent extreme cases were examined: Quasi-Static Architecture and Dynamic Per...
Switching-induced physical layer impairments in EDFA-amplified optical links pose significant challenges to the applicability of optical flow switching (OFS). Based on measured data we have developed a model to predict lightpath quality and a scheduling algorithm that guarantees quality of lightpaths. Our algorithm greatly reduces control complexity and control traffic and can set up new lightpaths...
Future large Internet transactions (“Elephants”) will not be supported efficiently by TCP/IP Internet Protocols and traditional switching and routing paradigms. This talk describes an entire optical network architecture from the Physical Layer to the Application Layer that will support “elephants” much more efficiently and economically. In particular, bursty dynamic elephant traffic can cause serious...
In this paper we explore scalable power efficient architectures for optical WAN. The network traffic we assume is 10–100 times larger than what it is today, the rationale being power efficiency will become the paramount obstacle in the next decade when network demands dramatically increases by orders of magnitude. We find using optical by bypass, optical switching at major nodes, WAN topology and...
In this paper an OFS architecture that exploits the strength of optics to serve large transactions is described. The shift towards OFS requires some architectural elements of the network- from the physical layer to the higher network layers, as well as network management and control, be substantially redesigned at the fundamental level for the network architecture to be scalable and implementable.
We will explore a new network transport ”optical flow switching-OFS”, that will enable significant data rate growth and cost-effective scalability of next-generation networks. The talk will concentrate on the tough network management/control issues of OFS.
Present-day networks are being challenged by dramatic increases in bandwidth demand of emerging applications. We will explore a new transport, ??optical flow switching??, that will enable significant growth, power-efficiency and cost-effective scalability of next-generation networks.
We conduct a throughput-cost study of several (hybrid) multi-tiered optical network architectures comprising two large groups of users, each in a distinct MAN, which wish to communicate over a WAN.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.