Title :
Availability model of bidirectional line switched ring
Author :
Rados, Ivan ; Turalija, Pero ; Sunaric, Tanja
Author_Institution :
HPT d.o.o. MOSTAR, Slovakia
Abstract :
This paper analyzes the availability of a bidirectional line switched ring (BLSR). Some reasons for the introduction of synchronous digital hierarchy are listed as well as a survey of protection mechanisms development. The main concepts related to availability are defined as well as the availability of serial and parallel structures. Further, the working principle is explained and analysis of BLSR availability is made. The availability model of the nodes is examined and their influence is analysed as well as the influence of optical cable availability to the total availability of a 2 Mb/s signal between two nodes inside BLSR. Calculation of the availability of BLSR is made using data pertaining to the failures of optical cables and equipment which are obtained during years-long observation of the SDH network of HPT Mostar as well as those obtained from manufacturers
Keywords :
network topology; optical cables; optical communication equipment; optical switches; synchronous digital hierarchy; telecommunication network reliability; 2 Mbit/s; HPT Mostar; SDH network; availability model; bidirectional line switched ring; network availability; network nodes; optical cable availability; optical cable failure; optical equipment failure; parallel structures; protection mechanisms; serial structures; synchronous digital hierarchy; Availability; Bandwidth; Equipment failure; Manufacturing; Optical fiber cables; Optical fiber devices; Optical fibers; Protection; Synchronous digital hierarchy; Telecommunication traffic;
Conference_Titel :
Transparent Optical Networks, 2001. Proceedings of 2001 3rd International Conference on
Conference_Location :
Cracow
Print_ISBN :
0-7803-7096-1
DOI :
10.1109/ICTON.2001.934778
