WO2000025527A3 - Alarm correlation in a large communications network - Google Patents

Alarm correlation in a large communications network Download PDF

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Publication number
WO2000025527A3
WO2000025527A3 PCT/SE1999/001696 SE9901696W WO0025527A3 WO 2000025527 A3 WO2000025527 A3 WO 2000025527A3 SE 9901696 W SE9901696 W SE 9901696W WO 0025527 A3 WO0025527 A3 WO 0025527A3
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WO
WIPO (PCT)
Prior art keywords
alarm
nes
domains
alarms
alarmed
Prior art date
Application number
PCT/SE1999/001696
Other languages
French (fr)
Other versions
WO2000025527A2 (en
Inventor
Edwin Tse
Nicolas Gosselin
Original Assignee
Ericsson Telefon Ab L M
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to CA002348766A priority Critical patent/CA2348766A1/en
Priority to AU63807/99A priority patent/AU6380799A/en
Priority to BR9914830-7A priority patent/BR9914830A/en
Publication of WO2000025527A2 publication Critical patent/WO2000025527A2/en
Publication of WO2000025527A3 publication Critical patent/WO2000025527A3/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges
    • H04Q3/0062—Provisions for network management
    • H04Q3/0075—Fault management techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0631—Management of faults, events, alarms or notifications using root cause analysis; using analysis of correlation between notifications, alarms or events based on decision criteria, e.g. hierarchy, tree or time analysis
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0604—Management of faults, events, alarms or notifications using filtering, e.g. reduction of information by using priority, element types, position or time
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13103—Memory
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13106—Microprocessor, CPU
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13162—Fault indication and localisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13163—Fault alarm
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13349—Network management

Abstract

A system and method of correlating alarms from a plurality of network elements (NEs) in a large communications network. A plurality of uncorrelated alarms are collected by an alarm collector (11) from alarm reporters (12). An alarm correlator (15) then partitions the alarms into correlated alarm clusters (61-63) such that alarms of one cluster have a high probability that they are caused by one network fault. The partitioning of the alarms is performed by creating alarm sets, expanding the alarm sets into alarm domains, and merging the alarm domains into alarm clusters if predefined conditions are met. The sets are formed by selecting an alarmed NE at the highest network hierarchy level which is not tagged, finding all of its contained NEs, and finding NEs that are peer-related to those contained NEs that are in an alarmed state (31-39). The sets are expanded into domains by finding NEs that are not in an alarmed state which contain the highest level alarmed NE in each alarm set (41-47). The domains are merged into one alarm cluster if the two domains have at least one common NE, at least one of the common NEs is not tagged, and the majority of the NEs contained by the non-tagged common NE are in an alarmed state (51-59).
PCT/SE1999/001696 1998-10-28 1999-09-24 Alarm correlation in a large communications network WO2000025527A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA002348766A CA2348766A1 (en) 1998-10-28 1999-09-24 Alarm correlation in a large communications network
AU63807/99A AU6380799A (en) 1998-10-28 1999-09-24 Alarm correlation in a large communications network
BR9914830-7A BR9914830A (en) 1998-10-28 1999-09-24 System for correlating alarms of a plurality of network elements (nes) in a large communications network, and, method for correlating alarms of network elements (nes) in a large communications network

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/181,583 US6253339B1 (en) 1998-10-28 1998-10-28 Alarm correlation in a large communications network
US09/181,583 1998-10-28

Publications (2)

Publication Number Publication Date
WO2000025527A2 WO2000025527A2 (en) 2000-05-04
WO2000025527A3 true WO2000025527A3 (en) 2000-08-17

Family

ID=22664896

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1999/001696 WO2000025527A2 (en) 1998-10-28 1999-09-24 Alarm correlation in a large communications network

Country Status (5)

Country Link
US (1) US6253339B1 (en)
AU (1) AU6380799A (en)
BR (1) BR9914830A (en)
CA (1) CA2348766A1 (en)
WO (1) WO2000025527A2 (en)

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US9027121B2 (en) 2000-10-10 2015-05-05 International Business Machines Corporation Method and system for creating a record for one or more computer security incidents

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Also Published As

Publication number Publication date
US6253339B1 (en) 2001-06-26
WO2000025527A2 (en) 2000-05-04
AU6380799A (en) 2000-05-15
BR9914830A (en) 2001-11-06
CA2348766A1 (en) 2000-05-04

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