Publication

Design Protection for WDM Optical Networks

Jean-Yves Le Boudec
1997
Reports

Abstract

With WDM networks, the failure of a single link or component may cause the simultaneous failure of several optical channels, potentially making impossible the restoration by rerouting in higher layers directly using the optical network (SDH, ATM, IP). To address this, we introduce the concept of Design Protection, which aims at making such failure propagations impossible. We present the Disjoint Alternate Path (DAP) algorithm, which places optical channels in order to maximize design protection. We show the result on the example of the ARPA-2 network.

Official source

https://infoscience.epfl.ch/entities/publication/e5e24fe9-748f-4d7d-9ae9-b6558cb3295f

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Jean-Yves Le Boudec
1997
Reports

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/e5e24fe9-748f-4d7d-9ae9-b6558cb3295f

About this result

Related concepts (32)

Optical networking

Optical networking is a means of communication that uses signals encoded in light to transmit information in various types of telecommunications networks. These include limited range local-area networks (LAN) or wide-area networks (WAN), which cross metropolitan and regional areas as well as long-distance national, international and transoceanic networks. It is a form of optical communication that relies on optical amplifiers, lasers or LEDs and wave division multiplexing (WDM) to transmit large quantities of data, generally across fiber-optic cables.

Passive optical network

A passive optical network (PON) is a fiber-optic telecommunications technology for delivering broadband network access to end-customers. Its architecture implements a point-to-multipoint topology in which a single optical fiber serves multiple endpoints by using unpowered (passive) fiber optic splitters to divide the fiber bandwidth among the endpoints. Passive optical networks are often referred to as the last mile between an Internet service provider (ISP) and its customers. Many fiber ISPs prefer this technology.

Optical transport network

An optical transport network (OTN) is a digital wrapper that encapsulates frames of data, to allow multiple data sources to be sent on the same channel. This creates an optical virtual private network for each client signal. ITU-T defines an optical transport network as a set of optical network elements (ONE) connected by optical fiber links, able to provide functionality of transport, multiplexing, switching, management, supervision and survivability of optical channels carrying client signals.

Related publications (7)

Design Protection for WDM Optical Networks

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