Topology-based reasoning apparatus for root-cause analysis of network faults
AssigneeTti-Team Telecom International Ltd.
InventorsDoron Valadarsky, Adir Pridor, Nir Kaftan, Shlomo Mallal, Alexander Pavlenko, Yuval Lifshitz, Lev Bregman, Alexander Virtser, Igor Kouperchimdt
Life of this patent
Estimating the term…
Abstract
A root cause analysis system operative in conjunction with fault management apparatus, the system includes a topology-based reasoning system (TRS) operative to topologically analyze alarms in order to identify at least one root cause thereof.
Claims51
A root cause analysis system operative in conjunction with fault management apparatus, the system comprising:
- a topology-based reasoning system (TRS) operative to topologically analyze alarms in order to identify at least one root cause thereof,
- wherein conditional probabilities derived from assuming that various probable causes are the root cause, are compared, in order to select one of the probable causes as the root cause.
A root cause analysis method operative in conjunction with fault management apparatus, the method comprising:
- performing topology-based reasoning including topologically analyzing alarms in order to identify at least one root cause thereof;
- and
- adapting said topology-based reasoning for use with a different type of network by adding at least one rule to an existing rule set employed in the course of said performing topology-based reasoning.
A root cause analysis system operative in conjunction with fault management apparatus, the system comprising:
- a topology-based reasoning system (TRS) operative to topologically analyze alarms in order to identify at least one root cause thereof,
- wherein said TRS is operative to make at least one root-cause decision based at least partly on the following parameter:
- the distance between the location in the network of the suspected root-cause and the point of origin of each alarm related to it.
A root cause analysis system operative in conjunction with fault management apparatus, the system comprising:
- a topology-based reasoning system (TRS) operative to topologically analyze alarms in order to identify at least one root cause thereof,
- wherein said TRS is operative to make at least one root-cause decision based at least partly on the following parameter:
- the amount of alarms received out of all the alarms that system expects for that root cause.
A root cause analysis system operative in conjunction with fault management apparatus, the system comprising:
- a topology-based reasoning system (TRS) operative to topologically analyze alarms in order to identify at least one root cause thereof,
- wherein said TRS is operative to identify at least one incoming alarm generated by at least one network maintenance activity.
A root cause analysis system operative in conjunction with fault management apparatus, the system comprising:
- a topology-based reasoning system (TRS) operative in topologically analyze alarms in order to identify at least one root cause thereof;
- and
- an event stream including a sequence of events, less than all of which are deemed alarms,
- wherein said TRS can be connected to the event stream directly.
A root cause analysis system operative in conjunction with fault management apparatus, the system comprising:
- a topology-based reasoning system (TRS) operative in topologically analyze alarms in order to identify at least one root cause thereof,
- wherein said TRS imitates the flow of alarms in the network, thereby allowing anyone with good knowledge of the alarm flow in a given network type to generate the rules for that network type.
Dependencies are inferred from the claim text.