Managing network access based on ranging information
First Claim
1. A method comprising:
- obtaining, for a network element of a passive optical network, an identifier and ranging information corresponding to a present distance between a first geographic location where the network element is connected to the passive optical network and an optical line terminal (OLT);
identifying, from a database and based on the identifier of the network element, stored ranging information corresponding to a previous distance between a second geographic location where the network element was previously connected to the passive optical network and the OLT;
determining, based on a comparison of the obtained ranging information corresponding to the present distance between the first geographic location and the OLT with the identified stored ranging information corresponding to the previous distance between the second geographic location and the OLT, that the present distance between the first geographic location and the OLT has changed from the previous distance between the second geographic location and the OLT by more than a specified amount and the network element is connected to the passive optical network at an unauthorized location; and
outputting an alert in response to determining that the present distance between the first geographic location and the OLT has changed from the previous distance between the second geographic location and the OLT by more than the specified amount and the network element is connected to the passive optical network at the unauthorized location.
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Accused Products
Abstract
Methods, systems, and apparatus for restricting use of a network element outside an authorized location range are disclosed. In one aspect a method includes obtaining, for a network element of a passive optical network, an identifier and ranging information corresponding to a present location of the network element; identifying, from a database and based on the identifier of the network element, stored ranging information specifying a previous location of the network element; determining, based on a comparison of the ranging information with the stored ranging information, that the location of the network element has changed more than a specified amount; and outputting an alert in response to determining that the location of the network element has changed more than a specified amount.
29 Citations
22 Claims
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1. A method comprising:
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obtaining, for a network element of a passive optical network, an identifier and ranging information corresponding to a present distance between a first geographic location where the network element is connected to the passive optical network and an optical line terminal (OLT); identifying, from a database and based on the identifier of the network element, stored ranging information corresponding to a previous distance between a second geographic location where the network element was previously connected to the passive optical network and the OLT; determining, based on a comparison of the obtained ranging information corresponding to the present distance between the first geographic location and the OLT with the identified stored ranging information corresponding to the previous distance between the second geographic location and the OLT, that the present distance between the first geographic location and the OLT has changed from the previous distance between the second geographic location and the OLT by more than a specified amount and the network element is connected to the passive optical network at an unauthorized location; and outputting an alert in response to determining that the present distance between the first geographic location and the OLT has changed from the previous distance between the second geographic location and the OLT by more than the specified amount and the network element is connected to the passive optical network at the unauthorized location. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A device, comprising:
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a memory storing identifiers and ranging information of at least one network element of a passive optical network; and one or more optical network devices that interact with the memory and execute instructions that cause the device to be configured to; obtain, for a network element among the at least one network element of the passive optical network, an identifier and ranging information corresponding to a present distance between a first geographic location where the network element is connected to the passive optical network and an optical line terminal (OLT); identify, from a database and based on the identifier of the network element, stored ranging information specifying a previous distance between a second geographic location where the network element was previously connected to the passive optical network and the OLT; determine, based on a comparison of the obtained ranging information corresponding to the present distance between the first geographic location and the OLT with the identified stored ranging information corresponding to the previous distance between the second geographic location and the OLT, that the present distance between the first geographic location and the OLT has changed from the previous distance between the second geographic location and the OLT by more than a specified amount and the network element is connected to the passive optical network at an unauthorized location; and output an alert in response to determining that the present distance between the first geographic location and the OLT has changed from the previous distance between the second geographic location and the OLT by more than the specified amount and the network element is connected to the passive optical network at an unauthorized location. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A system, comprising:
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at least one network element of an optical network; an optical line terminal (OLT) that is connected to the optical network; and a network distribution element of the optical network including one or more data processing devices configured to; obtain, for a network element among the at least one network element of the optical network, an identifier and ranging information corresponding to a present distance between a first geographic location where the network element is connected to the optical network and the OLT; identify, from a database and based on the identifier of the network element, stored ranging information specifying a previous distance between the a second geographic location where network element was previously connected to the optical network and the OLT; determine, based on a comparison of the obtained ranging information corresponding to the present distance between the first geographic location and the OLT with the identified stored ranging information corresponding to the previous distance between the second geographic location and the OLT, that the present distance between the first geographic location and the OLT has changed from the previous distance between the second geographic location and the OLT by more than a specified amount and the network element is connected to the optical network at an unauthorized location; and output an alert in response to determining that the present distance between the first geographic location and the OLT has changed from the previous distance between the second geographic location and the OLT by more than the specified amount and the network element is connected to the optical network at the unauthorized location. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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Specification