System and method therefor of estimating optimal spare capacity for a distributed restoration scheme
First Claim
1. Apparatus for estimating an optimal amount of spare capacity to be provided for and allocated within a telecommunications network so that efficient distributed restoration of traffic may be effected on said network if a disruption of traffic occurs between at least two adjacent nodes of said network, comprising:
- network modelling tool means having predetermined engineering and design guidelines for calculating the amount of spare capacity required for said network if said network is defined to have a given topology of nodes and links and a predefined amount of traffic traversing therethrough;
implement means for provisioning said calculated amount of spare capacity to appropriate locations of said network;
control means for monitoring and determining whether said provisioned spare capacity provides for an efficient distributed restoration of traffic in said network when a traffic disruption fault occurs in said network, said control means providing a feedback to said network modelling tool means to enable said tool means to recalculate said amount of spare capacity required to obtain said optimal amount of spare capacity for said network if said control means determines said previously provisioned spare capacity fails to provide for said efficient distributed restoration of traffic.
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Accused Products
Abstract
To estimate an optimal amount of spare capacity for a network so that efficient distributed restoration of the network can take place in the event of a network failure, parameter assumptions and network design guidelines are provided to a network modeling tool to generate a desirable amount of spare links for the network. The spare links are allocated to the different nodes of the network. After a failure in the network, the result of the restoration of the network due to the failure is reported to the controller of the system. If necessary, the parameter assumptions and network design guidelines are updated and fed back to the network modeling tool for further refining the spare capacity of the network. An optimal amount of spare capacity is thus achieved by a continuous redeployment of the spare capacity output provided by the network modeling tool. Simulated failures and subsequent restorations of the network are provided to an exerciser periodically. Results from the exerciser further enhance the operations of the network modeling tool to provide an optimal amount of spare capacity for the telecommunications network.
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Citations
13 Claims
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1. Apparatus for estimating an optimal amount of spare capacity to be provided for and allocated within a telecommunications network so that efficient distributed restoration of traffic may be effected on said network if a disruption of traffic occurs between at least two adjacent nodes of said network, comprising:
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network modelling tool means having predetermined engineering and design guidelines for calculating the amount of spare capacity required for said network if said network is defined to have a given topology of nodes and links and a predefined amount of traffic traversing therethrough; implement means for provisioning said calculated amount of spare capacity to appropriate locations of said network; control means for monitoring and determining whether said provisioned spare capacity provides for an efficient distributed restoration of traffic in said network when a traffic disruption fault occurs in said network, said control means providing a feedback to said network modelling tool means to enable said tool means to recalculate said amount of spare capacity required to obtain said optimal amount of spare capacity for said network if said control means determines said previously provisioned spare capacity fails to provide for said efficient distributed restoration of traffic. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. Method of estimating an optimal amount of spare capacity to be provided for a telecommunications network for effecting efficient distributed restoration of traffic in said network if a disruption of traffic occurs between at least two adjacent nodes of said network, comprising the steps of:
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(a) providing predetermined engineering and design guidelines for said network to a modelling tool means; (b) defining said network to have a given topology of nodes and links and a predefined amount of traffic traversing therethrough; (c) calculating the amount of spare capacity required for said network; (d) provisioning said calculated amount of spare capacity to appropriate locations of said network; (e) monitoring and determining whether said provisioned spare capacity provides for an efficient distributed restoration of traffic in said network when a traffic disruption fault occurs in said network; and (f) providing a feedback to said network modelling tool means to enable said tool means to recalculate said amount of spare capacity required to obtain said optimal amount of spare capacity for said network if said previously provisioned spare capacity fails to provide for said efficient distributed restoration of traffic. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification