Searching system for determining alternative routes during failu

Details Searching system for determining alternative routes during failu Searching system for determining alternative routes during failu

1995-03-17

1996-04-30

Beausoliel, Jr., Robert W.

39518319, G06F 1300, H04L 1200, H04Q 1104

Patent

active

055133452

ABSTRACT:
A system for searching for alternative routes in a network at the time of a failure in a node or link which executes a stage for initiation of failure restoration processing which starts up failure restoration processing in accordance with various types of messages when a failure occurs at a link or node, a stage for processing a restoration message for searching for an alternative route, a stage for processing an acknowledgment message for reserving an alternative route, a stage for processing a cancellation message for cancelling reservation of an alternative route, a stage for processing a confirmation message for confirming a reserved alternative route and making a switching of cross-connect equipment, a stage for processing a cross-connection completion message for notifying the completion of switching of the cross-connect equipment to the nodes, a stage for processing a cross-connection acknowledgment message for confirming the completion of switching of all of the cross-connect equipment on the alternative route, and a stage for processing a cross-connection confirmation message for performing processing to complete the search for an alternative route and which thereby searches for alternative routes autonomously in a distributed manner.

REFERENCES:
patent: 4686669 (1987-09-01), Chang
patent: 4905233 (1990-02-01), Cain et al.
patent: 4999771 (1991-03-01), Ralph et al.
patent: 5086499 (1992-02-01), Mutone
patent: 5113390 (1992-05-01), Hayashi et al.
patent: 5367642 (1994-11-01), Dally
patent: 5377333 (1994-12-01), Nakagoshi et al.
patent: 5396638 (1995-03-01), Kanekura
Grover, W. D., "The Selfhealing.TM. Network: A Fast Distributed Restoration Technique for Networks Using Digital Crossconnect Machines", Globecom '88, pp. 28.2.1-28.2.6, Nov. 1987.
Grover, W. D., et al., "Performance Studies of a Selfhealing Network Protocol in Telecom Canada Long Haul Networks", Globecom '90, pp. 403.3.1-403.3.7, Dec. 1990.
Yang, C. Han, et al., "Fitness: Failure Immunization Technology for Network Service Survivability", Globecom '88, pp. 47.31-47.3.6, Dec. 1988.
Miyazaki, K. et al., "Spare Capacity Assignment for Muliptle-Link Failure", IWACA '92, Mar. 1992.
Sakau Chi, H., et al., "A Self-Healing Network with an Economical Spare-Channel Assignment", Globecom '90, pp. 403.1.1-403.1.6, Dec. 1990.
Chujo, T., et al., "The Design and Simulation of an Intelligent Transport Network with Distributed Control", NOMS '90, pp. 11.4.1-11.4.12, Feb. 1990.
Komine, H., et al., "A Distributed Restoration Algorithm for Multiple-Link and Node Failures of Transport Networks", Globecom '90, pp. 403.4.1-403.4.5, Dec. 1990.

Affiliated with

Also associated with

Rating

Searching system for determining alternative routes during failu does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Searching system for determining alternative routes during failu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Searching system for determining alternative routes during failu will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-636796