Method and system for automatically identifying a logical circuit failure in a data network
First Claim
1. A method for automatically identifying a failure in a logical circuit in a data network, the method comprising:
- polling first and second switches in the logical circuit of the data network based on a predetermined schedule to retrieve status information associated with a failure status of at least one of a first network-to-network interface or a second network-to-network interface, wherein the logical circuit connects a host device to a remote device via first and second local access and transport areas and an inter-exchange carrier, wherein the host device is in communication with the first local access and transport area, wherein the first local access and transport area is in communication with the inter-exchange carrier via the first switch in the first local access and transport area forming the first network-to-network interface, wherein the inter-exchange carrier is in communication with the second local access and transport area via the second switch in the second local access and transport area forming the second network-to-network interface, and wherein the second local access and transport area is in communication with the remote device; and
identifying a failure of the logical circuit based on the status information without manual intervention, wherein identifying the failure of the logical circuit comprises determining if at least one frame has been discarded.
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Accused Products
Abstract
For automatically identifying a failure in a logical circuit in a data network without manual intervention, the logical circuit includes one or more logical connections for communicating data in the data network. A network management module periodically requests trap data indicating the status of the logical connections in the logical circuit. After the trap data has been received by the network management module, the trap data is analyzed to determine whether any of the logical connections has failed. If it is determined that a logical connection has failed, the network management module may wait a predetermined time period to determine whether the failed logical connection has been restored. If after the predetermined time period the logical connection has not been restored, then the logical circuit is identified as having failed.
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Citations
28 Claims
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1. A method for automatically identifying a failure in a logical circuit in a data network, the method comprising:
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polling first and second switches in the logical circuit of the data network based on a predetermined schedule to retrieve status information associated with a failure status of at least one of a first network-to-network interface or a second network-to-network interface, wherein the logical circuit connects a host device to a remote device via first and second local access and transport areas and an inter-exchange carrier, wherein the host device is in communication with the first local access and transport area, wherein the first local access and transport area is in communication with the inter-exchange carrier via the first switch in the first local access and transport area forming the first network-to-network interface, wherein the inter-exchange carrier is in communication with the second local access and transport area via the second switch in the second local access and transport area forming the second network-to-network interface, and wherein the second local access and transport area is in communication with the remote device; and identifying a failure of the logical circuit based on the status information without manual intervention, wherein identifying the failure of the logical circuit comprises determining if at least one frame has been discarded. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for automatically identifying a logical circuit failure in a data network, the system comprising:
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a first network device in a first local access and transport area forming a first network-to-network interface connecting the first local access and transport area to an inter-exchange carrier to establish a logical circuit connecting the first local access and transport area to a second local access and transport area via the inter-exchange carrier, the network device to collect status information indicative of a failure status of the first network-to-network interface; a logical element module in communication with the first network device to receive the status information, the logical element module further in communication with a second network device of the second local access and transport area, the second network device forming a second network-to-network interface connecting the inter-exchange carrier to the second local access and transport area; and a network management module, in communication with the logical element module, to; periodically monitor the logical circuit for the status information, wherein periodically monitoring the logical circuit comprises polling only switches carrying logical circuits indicating a problem; periodically retrieve the status information through the polling when the logical circuit indicates a problem; and identify a failure of the logical circuit based on the status information without manual intervention. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method for automatically identifying a failure in a logical circuit in a data network, the method comprising:
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after identifying the existence of a problem in the logical circuit, polling a first network device of the logical circuit to retrieve first status information, the logical circuit connecting a host device to a remote device via first and second local access and transport areas and an inter-exchange carrier, the first network device forming a first network-to-network interface connecting the first local access and transport area to the inter-exchange carrier, and the first status information indicative of a failure status of the first network-to-network interface; after confirming a failure in the first network-to-network interface based on the first status information, determining whether the first network-to-network interface has been restored after waiting a predetermined duration; and when the first network-to-network interface has not been restored after the predetermined duration, indicating that the logical circuit has failed; and after indicating that the logical circuit has failed, rerouting data via a failover network in communication with the first and second local access and transport areas to bypass the first network-to-network interface, the inter-exchange carrier, and a second network-to-network interface connecting the inter-exchange carrier to the second local access and transport area. - View Dependent Claims (26, 27, 28)
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Specification