Communication network managment system, method and program, and management computer
First Claim
1. A communication network management system comprising:
- a communication network including a plurality of nodes and a plurality of links connecting between said plurality of nodes; and
a management computer connected to said plurality of nodes,wherein a loop-shape communication route in said communication network is a loop route,wherein said management computer transmits a frame to one node on said loop route,wherein when receiving said frame, each node on said loop route forwards said received frame to a subsequent node along said loop route and, if a predetermined condition is satisfied, returns a response back to said management computer,wherein said management computer determines whether or not a failure is occurring, based on reception state of said response.
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Accused Products
Abstract
A communication network management system has: a communication network including a plurality of nodes and a plurality of links connecting between the plurality of nodes; and a management computer connected to the plurality of nodes. A loop-shape communication route in the communication network is a loop route. The management computer transmits a frame to one node on the loop route. When receiving the frame, each node on the loop route forwards the received frame to a subsequent node along the loop route and, if a predetermined condition is satisfied, returns a response back to the management computer. The management computer determines whether or not a failure is occurring, based on reception state of the response.
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Citations
15 Claims
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1. A communication network management system comprising:
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a communication network including a plurality of nodes and a plurality of links connecting between said plurality of nodes; and a management computer connected to said plurality of nodes, wherein a loop-shape communication route in said communication network is a loop route, wherein said management computer transmits a frame to one node on said loop route, wherein when receiving said frame, each node on said loop route forwards said received frame to a subsequent node along said loop route and, if a predetermined condition is satisfied, returns a response back to said management computer, wherein said management computer determines whether or not a failure is occurring, based on reception state of said response. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A management computer that manages a communication network including a plurality of nodes and a plurality of links connecting between said plurality of nodes,
said management computer comprising: -
a storage unit in which loop route information indicating a loop route being a loop-shape communication route in said communication network is stored; an entry control unit configured to instruct each node on said loop route; and a monitoring unit configured to transmit a frame to one node on said loop route, wherein said entry control unit instructs said each node to, when receiving said frame, forward said received frame to a subsequent node along said loop route and, if a predetermined condition is satisfied, return a response back to said management computer, wherein said monitoring unit determines whether or not a failure is occurring, based on reception state of said response. - View Dependent Claims (13)
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14. A communication network management method that manages a communication network by using a management computer,
wherein said communication network includes a plurality of nodes and a plurality of links connecting between said plurality of nodes, wherein a loop-shape communication route in said communication network is a loop route, wherein said communication network management method comprises: - transmitting a frame from said management computer to one node on said loop route;
forwarding, by each node on said loop route, said frame to a subsequent node along said loop route and, if a predetermined condition is satisfied, returning a response back to said management computer; and determining whether or not a failure is occurring, based on reception state of said response in said management computer.
- transmitting a frame from said management computer to one node on said loop route;
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15. A management program recorded on a tangible computer-readable medium that, when executed, causes a management computer to perform management processing of a communication network,
wherein said communication network includes a plurality of nodes and a plurality of links connecting between said plurality of nodes, wherein said management processing comprises: -
storing loop route information indicating a loop route being a loop-shape communication route in said communication network, in a storage device; instructing each node on said loop route to, when receiving a frame, forward said received frame to a subsequent node along said loop route and, if a predetermined condition is satisfied, return a response back to said management computer; transmitting a frame to one node on said loop route; and determining whether or not a failure is occurring, based on reception state of said response.
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Specification