07313087 is referenced by 113 patents and cites 13 patents.

A system for responding to failures of connections in a network. In one embodiment, there is a system for responding to destination failures involving SPVx (switched-permanent virtual circuit) connections includes a primary source node. The system includes a primary source switch for producing an SPVx connection, the primary source node in communication with the primary source switch. The system includes a primary destination node. The system includes a primary destination switch for receiving the SPVx connection, the primary destination node in communication with the primary destination switch, the connection following a primary path between the primary source node and the primary destination node. The system includes an alternate destination node. The primary destination switch redirects automatically the primary connection to the alternate destination node along an alternate path when the primary destination switch detects a failure of the primary path. The alternate path is formed by the primary source node and the alternate destination node only after the primary path experiences a failure. The primary destination switch releases the SPVx connection after there is a fault detected on the primary path. The primary source switch makes multiple attempts to reestablish the SPVx connection with the primary destination node after a failure is detected on the primary path. The primary source switch redirects automatically the SPVx connection to the alternate destination node. The primary source switch re-establishes the SPVx connection to the primary destination node when the failure condition clears. A method for responding to failures of connections in a network.

Title
Distributed protection switching
Application Number
10/600184
Publication Number
7313087 (B2)
Application Date
June 20, 2003
Publication Date
December 25, 2007
Inventor
Harry Ostaffe
Cranberry Township
PA, US
Rajeev Sehgal
Wexford
PA, US
Harmeet Singh Sahni
Cranberry Township
PA, US
Barton J Milburn
Baden
PA, US
Lingaraj S Patil
Wexford
PA, US
Agent
Ansel M Schwartz
Assignee
Ericsson
SE
IPC
G01R 31/08
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