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Method and system for providing a protection path for connection-oriented signals in a telecommunications network
| Details |
Inventors: Mo, Li; Widjaja, Indra; Sullivan, Edward T.; Wynn, David W.;
Assignee: Fujitsu Network Communications, Inc. (Richardson, TX)
Primary Examiner: Kizou; Hassan
Assistant Examiner: Elallam; Ahmed
Attorney, Agent or Firm: Baker Botts L.L.P.
A system is provided for providing a protection path for connection-oriented signals in a telecommunications network comprising a plurality of nodes. The system includes a source node, a destination node and a penultimate node. The source node is operable to transmit traffic. The destination node is operable to receive traffic from the source node. The penultimate node is operable to receive traffic from the source node, to transmit traffic directly to the destination node, to designate one of the nodes as a reflector and to generate a first segment of a protection path from the penultimate node through the reflector to the destination node. |
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DETAILED DESCRIPTION In accordance with the present invention, a method and system for providing a protection path for connection-oriented signals in a telecommunications network are provided that substantially eliminate or reduce disadvantages and problems associated with previously developed systems and methods.
In particular, reflectors are used to provide a plurality of segments for a protection path, thereby reducing overall packet delay and satisfying Quality of Service requirements.
In one embodiment of the present invention, a system is provided for providing a protection path for connection-oriented signals in a telecommunications network comprising a plurality of nodes.
The system includes a source node, a destination node and a penultimate node.
The source node is operable to transmit traffic.
The destination node is operable to receive traffic from the source node.
The penultimate node is operable to receive traffic from the source node, to transmit traffic directly to the destination node, to designate one of the nodes as a reflector and to generate a first segment of a protection path from the penultimate node through the reflector to the destination node.
In another embodiment of the present invention, a node is provided in a telecommunications network.
The node includes an ingress port, a reflector identifier, a protection path generator, and an egress port.
The ingress port is operable to receive traffic.
The traffic comprises a working path, a protection path, working traffic and protection traffic.
The reflector identifier is operable to identify the node as a reflector based on the received traffic.
The protection path generator is operable to generate a protection path based on an identification of the node as a reflector.
The egress port is operable to transmit traffic.
Technical advantages of the present invention include providing an improved method for providing a protection path for connection-oriented signals in a telecommunications network.
In particular, a penultimate node in the working path designates a reflector and generates a segment of a protection path from the penultimate node through the reflector to the destination node
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I/O Systems 
