An Analytical Model and A Fast Mechanism for Fault Restoration in IP over WDM Networks Based on n:m Scheme

Author

Xiansi, Tan ; Liang, Ou ; Wenqing, Cheng

Author_Institution

Dept. of Radar Syst. & Eng., Air Force of Radar Acad., Wuhan

fYear

2005

fDate

17-17 Nov. 2005

Firstpage

226

Lastpage

233

Abstract

The fault restoration technique based on n:m scheme can improve system availability with small cost increases for WDM networks, where it is possible that n faults occur synchronously in a protection domain or a protection entity, but it has rarely been implemented or standardized. In this paper, an analytical model for mean restoration time of restoration mechanism based on n:m scheme is developed. As a general model, it aims at the WDM networks with the restoration paths created in advance of fault occurrence without wavelength reserved. In particular, the proposed protocol for processing faults has been improved to make the restoration based on n:m scheme as fast as that based on 1:1 or n:1 scheme

Keywords

IP networks; fault diagnosis; optical fibre networks; protocols; telecommunication network reliability; wavelength division multiplexing; 1:1 scheme; IP over WDM networks; analytical model; fast mechanism; fault occurrence; fault restoration technique; mean restoration time; n:1 scheme; n:m scheme; protection entity; system availability; Analytical models; Costs; Intelligent networks; Optical fiber networks; Protection; Protocols; Radar; Systems engineering and theory; WDM networks; Wavelength division multiplexing;

fLanguage

English

Publisher

ieee

Conference_Titel

Local Computer Networks, 2005. 30th Anniversary. The IEEE Conference on

Conference_Location

Sydney, NSW

ISSN

0742-1303

Print_ISBN

0-7695-2421-4

Type

conf

DOI

10.1109/LCN.2005.26

Filename

1550861