000000120 001__ 120
000000120 005__ 20190117192730.0
000000120 037__ $$aCONF
000000120 245__ $$aFault Localisation for optical networks
000000120 269__ $$a1998
000000120 260__ $$c1998
000000120 336__ $$aConference Papers
000000120 520__ $$aA single failure in a communication network may trigger many alarms. When the communication network uses optical fibres as a transmission medium and increases its capacity by using Wavelength Division Multiplexing (WDM) and Space Division Multiplexing (SDM), the number of alarms and the difficulty to locate the failure are considerably higher. In this scenario, a single failure may interrupt several channels and the quantity of lost information is larger. We propose an alarm filtering algorithm for the fault management of an optical network that supports multiple failures and works in the presence of passives elements. A passive element is an netwrok element which may fail but never generates an alarm (e. g. an optical fiber). Our algorithm avoids the use of failure probabilities because they are difficult to estimate. The algorithm also accepts alarm losses. It presents to the human manager a list of faults which may have caused the observed alarms. We present a definition of teh problem and its abstraction. A feature of the algorithm is that it does not need a global knowledge of the network topology. The algorithm will be applied to the optical network of the ACTS COBNET project.
000000120 6531_ $$aAlarm filtering
000000120 6531_ $$aoptical communication networks
000000120 6531_ $$afault diagnosis
000000120 700__ $$aMas, Carmen
000000120 700__ $$0241098$$aLe Boudec, Jean-Yves$$g105633
000000120 7112_ $$aPhotonics East- All-optical networking: architecture, control and management$$cBoston
000000120 773__ $$q408-419$$tPhotonics East- All-optical networking: architecture, control and management
000000120 909CO $$ooai:infoscience.tind.io:120$$pconf$$pIC
000000120 909C0 $$0252614$$pLCA$$xUS00024
000000120 909C0 $$0252453$$pLCA2$$xU10427
000000120 937__ $$aLCA-CONF-1998-015
000000120 970__ $$a249/LCA
000000120 973__ $$aEPFL$$sPUBLISHED
000000120 980__ $$aCONF