Title :
The impact of SONET digital cross-connect system architecture on distributed restoration
Author :
Wu, Tsong-Ho ; Kobrinski, Haim ; Ghosal, Dipak ; Lakshman, T.V.
Author_Institution :
Bellcore, Red Bank, NJ, USA
fDate :
1/1/1994 12:00:00 AM
Abstract :
The viability of distributed control restoration using digital cross-connect systems (DCS) depends on its capability for restoring services within specified time requirements, and its economics for providing restoration compared to other alternatives. The authors report a Bellcore study for the impact of the DCS architecture on distributed restoration. This study concludes that currently proposed distributed control DCS self-healing schemes may not meet the 2 second restoration objective for large metropolitan local exchange carrier´s networks, regardless of the distributed algorithm used, if the present DCS system architecture which uses serial message processing and serial path cross-connection remains unchanged. They also discuss several DCS architecture enhancement options, including a parallel processing/cross-connect DCS architecture, which may improve the service restoration time
Keywords :
SONET; digital communication systems; distributed control; economics; metropolitan area networks; parallel processing; reliability; telecommunication services; telecommunications computing; telecommunications control; Bellcore; DCS architecture; SONET; digital cross-connect system; distributed algorithm; distributed control restoration; economics; local exchange carrier; metropolitan networks; network survivability; parallel processing architecture; self-healing schemes; serial message processing; serial path cross-connection; service restoration time; system architecture; Centralized control; Distributed algorithms; Distributed control; Mesh networks; Protection switching; Routing; SONET; Sections;
Journal_Title :
Selected Areas in Communications, IEEE Journal on
