Multiplex communications – Fault recovery – Bypass an inoperative switch or inoperative element of a...
Patent
1996-12-30
2000-02-29
Kizou, Hassan
Multiplex communications
Fault recovery
Bypass an inoperative switch or inoperative element of a...
370244, G01R 3108
Patent
active
060318198
ABSTRACT:
A system for establishing a restoral route to bypass a failed component in a communications network. The network has components that include nodes and links. Each link connected to a node is either an input or an output link for that node. When a component failure is detected on a output link of a node, the system selects a source node and a target node for the restoral route and sends messages through output links of the source node to establish a restoral route to the target node. When a message to establish a restoral route to the target node is received at a node, the node forwards the message through its output links. When a message that a restoral route has been established to the target node is received through an output link of a node, the node connects the input link through which the message to establish a restoral route was received to the output link, and forwards the message that a restoral route has been established through the input link. When a message that a restoral route has not been established to the target node is received through each output link of a node, the node forwards the message that a restoral route has not been established through the input link. Thus, the nodes of the network send messages to one another to effect the establishing of a restoral route in a distributed and dynamic manner.
REFERENCES:
patent: 4577066 (1986-03-01), Bimonte et al.
patent: 4920529 (1990-04-01), Sasaki et al.
patent: 4956835 (1990-09-01), Grover
patent: 5065399 (1991-11-01), Hasegawa
patent: 5187740 (1993-02-01), Swaim et al.
patent: 5335268 (1994-08-01), Kelly, Jr. et al.
patent: 5459716 (1995-10-01), Fahim et al.
patent: 5463615 (1995-10-01), Steinhorn
patent: 5636203 (1997-06-01), Shah
patent: 5646936 (1997-07-01), Shah et al.
Manione et al. "An Inconsistencies Tolerant Approach in the Fault Diagnosis of Telecommunications Networks" Feb. 14, 1994.
Bouloutas, et al. "Alarm Correlation and Fault Identification in Communication Networks" Feb. 1, 1994.
Hasegawa et al. "Dynamic Reconfiguration of Digital Cross-Connect Systems with Network Control and Management" IEEE.
Bellary, et al. "Intelligent Transport Network Survivability: Study of DIstributed and Centralized Control Techniques" IEEE 1990.
Shimazaki et al. "Neopilot: An Integrated ISDN Fault Management System" IEEE Feb. 1990.
Shimazaki et al. "Network Fault Management" Sep. 1992.
Newport, et al. "Network Survivability Through Connectivity Optimization" IEEE 1987.
Flanagan et al. "Principles and Technologies for Planning Survivability-A Metropolitan Case Study", IEEE 1989.
M. Wehr "Protection of Synchronous Transmission Networks", Commutation and Transmission, No. 4, 1993.
Coan, et al. "Using Distributed Topology Update and Preplanned Configurations to Achieve Trunk Network Survivability" IEEE Oct. 1991.
Kizou Hassan
MCI Communications Corporation
Slavitt Mitchell
LandOfFree
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