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US 8,509,093 B2Granted
Outage analysis system
AssigneeVerizon Patent and Licensing Inc.
InventorsJim N Russell, Kenny M Hawkins, Bob E Taylor, Paul P Hulm
Life of this patent
Estimating the term…
Abstract
A device may receiving alarms identifying failures of network elements, create a site table that includes a list of sites at which the alarms are generated and a number of alarms for each of the sites, determine whether an outage has occurred based on the alarms, analyze whether the outage is a false outage based on a failure of a probe that generates the alarms, and provide a notification that includes the site table, an indication of whether the outage has occurred, or an indication whether the outage is a false outage.
Claims18
A method comprising:
- receiving, over a network including a plurality of sites, a plurality of alarms identifying alarm-related information associated with failures of network elements and failures of links between the network elements associated with one or more of the sites;
- creating, from the alarm-related information, a first table including:
- a list of different types of the links with which the alarms are associated wherein the different types correspond to multiple Digital Signal Levels,
- an aggregated number of the plurality of alarms associated with each of the different type of the listed links,
- a list of the sites with which the alarms are associated, and
- an aggregated number of the plurality of alarms associated with each of the listed sites;
- determining that a potential outage has occurred based on an analysis of at least a portion of the alarm-related information with respect to a threshold value for an unavailable link equivalent corresponding to a particular amount of bandwidth, wherein the at least a portion of the alarm-related information includes at least one of:
- an amount of unavailable bandwidth per unit time, or
- a number of unavailable links per unit time;
- analyzing whether the potential outage is a false outage by determining that a probe, used to generate at least one of the plurality of alarms, has failed based on the at least one of the plurality of alarms indicating a failure of the probe;
- and
- providing a notification including:
- the first table, and
- an indication of whether the potential outage corresponds to an outage that has occurred or the potential outage is a false outage.
11 more elements
A device comprising:
- a processor to:
- receive, over a network including a plurality of sites, a plurality of alarms that identify alarm-related information associated with failures of network elements and failures of links between the network elements associated with one or more of the sites;
- determine that a potential outage has occurred based on an analysis of at least a portion of the alarm-related information with respect to a threshold value for an unavailable link equivalent corresponding to a particular amount of bandwidth indicated in the at least a portion of the alarm-related information;
- create, from the alarm-related information, a first table including:
- a list of the sites with which the alarms are associated,
- an aggregated number of the plurality of alarms associated with each of the listed sites,
- a list of different types of the links with which the alarms are associated, wherein the different types correspond to multiple Digital Signal Levels, and
- an aggregated number of the plurality of alarms associated with each of the different types of the listed links;
- determine whether the potential outage is a false outage by determining that an alarm-feed, via which at least one of the plurality of alarms was generated, has failed based on the at least one of the plurality of alarms indicating a failure of the alarm feed;
- and
- store information regarding whether the potential outage corresponds to an outage that has occurred.
8 more elements
A non-transitory computer-readable medium comprising computer-executable instructions, the computer-executable instructions comprising:
- instructions for querying a database for a plurality of alarms that are carried over a network and indicate alarm-related information associated with failures of network elements and failures of different types of links between the network wherein the different types correspond to multiple Digital Signal Levels elements associated with one or more of sites in the network wherein the different types correspond to multiple Digital Signal Levels;
- instructions for summarizing the alarm-related information and correlating information, provided in circuit layout records, to produce tables aggregating the plurality of alarms associated with each of the different types of the links and aggregating the plurality of alarms associated with each of the one or more sites;
- instructions for determining that a potential outage has occurred based on an analysis of at least a portion of the alarm-related information with respect to a threshold value for an unavailable link equivalent, wherein the at least a portion of the alarm-related information includes an amount of unavailable bandwidth that is equivalent to a particular number of unavailable links;
- instructions for determining whether the potential outage is a false outage based on a response, from the database to the query for the plurality of alarms, the response including, when a probe that has generated a number of the plurality of alarms has failed, a first alarm that indicates a failure of the probe;
- and
- instructions for updating a status of an outage, that has occurred, in the database and for sending email reports that include the tables.
3 more elements
Dependencies are inferred from the claim text.