Title :
Computing the Availability and MTTF of Shared Protection Systems
Author :
Ozaki, Hirokazu ; Kara, Atsushi
Author_Institution :
NEC Corp., Tokyo
Abstract :
In this paper we investigate the reliability of shared protection systems such as one for N (1:N) that can be applied to access network node devices. We describe the effectiveness of such a protection system in a quantitative manner. The mathematical analysis gives closed form solutions of the availability and MTTF (Mean Time to Failure) perceived by an arbitrary end user. We also describe the effectiveness of priority switching control in shared protection systems. These analyses provide some useful information for the design and control of not only the access network node devices but also other general shared protection systems that are subject to service level agreements (SLA) involving reliability measures.
Keywords :
failure analysis; subscriber loops; telecommunication control; telecommunication network reliability; time-varying systems; MTTF; access network node devices; mathematical analysis; mean time to failure; priority switching control; service level agreements; shared protection systems; Availability; Closed-form solution; Computer networks; Control systems; Information analysis; Maintenance; Mathematical analysis; Passive optical networks; Protection; Telecommunication network reliability;
Conference_Titel :
Computer and Information Technology, 2007. CIT 2007. 7th IEEE International Conference on
Conference_Location :
Aizu-Wakamatsu, Fukushima
Print_ISBN :
978-0-7695-2983-7
DOI :
10.1109/CIT.2007.113
