Multi-layer real-time restoration for survivable networks

Author

Chng, R.S.K. ; Sinclair, M.C. ; Botham, C.P. ; Mahony, M. J O

Author_Institution

Dept. of Electron. Syst. Eng., Essex Univ., Colchester, UK

fYear

1993

fDate

10/21/1993 12:00:00 AM

Firstpage

42583

Lastpage

42587

Abstract

With the increased bandwidth capabilities offered by fibre optic transmission, the loss of a single fibre-optic cable can affect a vast number of voice circuits. Protection against failure has been an important aspect of most modern transmission systems. There are two approaches towards the survivability of an optical network: the conventional approach which is based on 1:1 protection switching using diverse routes; or the new approach which is based on the rapid reconfiguration of a high-speed digital cross-connect system (DCS). The authors examine the restoration strategy based on DCS reconfiguration, which has a higher potential to provide a high degree of protection and flexibility at lower cost. Five distributed restoration algorithms are examined and compared. A multi-layer real-time restoration algorithm is presented as an effective solution to achieve extremely fast network failure restoration

Keywords

computerised control; distributed algorithms; failure analysis; optical cables; optical communication; real-time systems; telecommunications computing; DCS reconfiguration; bandwidth capabilities; distributed restoration algorithms; extremely fast network failure restoration; fibre optic transmission; fibre-optic cable; high-speed digital cross-connect system; multi-layer real-time restoration algorithm; optical network; restoration strategy; survivability; voice circuits;

fLanguage

English

Publisher

iet

Conference_Titel

Safety Critical Distributed Systems, IEE Colloquium on

Conference_Location

London

Type

conf

Filename

274524