Title:
INTEGRATION OF A CENTRALIZED NETWORK RESTORATION SYSTEM WITH A DISTRIBUTED NETWORK RESTORATION SYSTEM
Document Type and Number:
WIPO Patent Application WO1998030034
Kind Code:
A3
Abstract:
A centralized restoration system and a distributed restoration system for restoring a network are integrated. Trunks within the network that have failed are first processed by the distributed restoration system to attempt restoration of the failed trunks. Trunks that cannot be restored by the distributed restoration system and trunks that are designated for restoration by the centralized restoration system are then restored by the centralized restoration system. The centralized restoration system and distributed restoration system communicate to keep each other aware of their respective actions. Mechanisms are utilized to prevent conflict between the two types of restoration systems. The integration of the two types of restoration systems causes high-priority trunks to be quickly restored by the distributed restoration system and lower-priority trunks to be restored by the centralized restoration system to balance the workload of restoration.
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Inventors:
CROSLIN WILLIAM D
Application Number:
PCT/US1997/022897
Publication Date:
October 22, 1998
Filing Date:
December 15, 1997
Export Citation:
Assignee:
MCI COMMUNICATIONS CORP (US)
International Classes:
H04Q3/00; (IPC1-7): H04Q/
Foreign References:
| US5435003A | 1995-07-18 | |||
| EP0494513A2 | 1992-07-15 |
Other References:
NEDERLOF L ET AL: "A NEW DISTRIBUTED RESTORATION ALGORITHM TO PROTECT ATM MESHED NETWORKS AGAINST LINK AND NODE FAILURES", ISS '95. INTERNATIONAL SWITCHING SYMPOSIUM, ADVANCED SWITCHING TECHNOLOGIES FOR UNIVERSAL TELECOMMUNICATIONS AT THE BEGINNING OF THE 21ST. CENTURY, vol. VOL. 2, no. SYMP. 15, 23 April 1995 (1995-04-23) - 28 April 1995 (1995-04-28), BERLIN (GERMANY), VERBAND DEUTSCHER ELEKTROTECHNIKER (VDE) ET AL, pages 398 - 402, XP000495690
S. HASEGAWA ET AL.: "DYNAMIC RECONFIGURATION OF CROSS-CONNECT SYSTEMS WITH NETWORK CONTROL AND MANAGEMENT", I.E.E.E GLOBAL TELECOMMUNICATIONS CONFERENCE, 15 November 1987 (1987-11-15) - 18 November 1987 (1987-11-18), Tokyo (Japan), pages 1096 - 1100, XP002071554
S. HASEGAWA ET AL.: "DYNAMIC RECONFIGURATION OF CROSS-CONNECT SYSTEMS WITH NETWORK CONTROL AND MANAGEMENT", I.E.E.E GLOBAL TELECOMMUNICATIONS CONFERENCE, 15 November 1987 (1987-11-15) - 18 November 1987 (1987-11-18), Tokyo (Japan), pages 1096 - 1100, XP002071554
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