CA2343695C - Tree hierarchy and description for generated logs - Google Patents

Tree hierarchy and description for generated logs Download PDF

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Publication number
CA2343695C
CA2343695C CA002343695A CA2343695A CA2343695C CA 2343695 C CA2343695 C CA 2343695C CA 002343695 A CA002343695 A CA 002343695A CA 2343695 A CA2343695 A CA 2343695A CA 2343695 C CA2343695 C CA 2343695C
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CA
Canada
Prior art keywords
logs
rule set
tree hierarchy
set criteria
ones
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
CA002343695A
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French (fr)
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CA2343695A1 (en
Inventor
Tonis Kasvand
Thomas Gray
Brian Mooy
Dennis Fortin
Audil Virk
Tyler Elliott
Rebecca Jones
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Mitel Networks Corp
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Mitel Networks Corp
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Publication date
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Publication of CA2343695A1 publication Critical patent/CA2343695A1/en
Application granted granted Critical
Publication of CA2343695C publication Critical patent/CA2343695C/en
Anticipated expiration legal-status Critical
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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/22Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks comprising specially adapted graphical user interfaces [GUI]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06Management of faults, events, alarms or notifications
    • H04L41/0631Management 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06Management of faults, events, alarms or notifications
    • H04L41/069Management of faults, events, alarms or notifications using logs of notifications; Post-processing of notifications
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/08Indicating faults in circuits or apparatus
    • H04M3/10Providing fault- or trouble-signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q3/00Selecting arrangements
    • H04Q3/0016Arrangements providing connection between exchanges
    • H04Q3/0062Provisions for network management
    • H04Q3/0075Fault management techniques
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q3/00Selecting arrangements
    • H04Q3/58Arrangements providing connection between main exchange and sub-exchange or satellite
    • H04Q3/62Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/42Systems providing special services or facilities to subscribers
    • H04M3/42314Systems providing special services or facilities to subscribers in private branch exchanges
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1305Software aspects
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13166Fault prevention
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1322PBX
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13343Neural networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13349Network management

Abstract

A method of generating a tree hierarchy display of error logs received fr om network devices and applications, each of the logs including a brief description of error cause and predetermined higher level ones of the logs being created in response to generation of predetermined combinations of lower level ones of the logs in accordance with user defined rule set criteria. The method comprises the ste ps of generating a user interface for entering explanations associated with predetermined ones of the error logs, storing the lower level ones of the logs used in meeting the rule set criteria, and displaying a tree hierarchy of the logs for any fully satisfied rule set criteria by attaching links between the logs in relation to the rule set criteria.

Description

Tree Hierarchy and Description for Generated Logs Field of the Invention This invention relates in general to network diagnostics, and more particularly to a network administration system for utilizing the results generated by rule sets to display the tree hierarchy of the logs that satisfy the rule sets' criteria and provide a full explanation of the problems that triggered the logs.
Background of the Invention It is well known in traditional computer and digital communication networks for technicians to respond to the generation of error logs by notifying affected users of system problems, analyzing and then fixing the problems using an assortment of software commands and/or tools. It is known in the art for logs to be filtered through 'rule sets' to determine if a combination of logs (Low bevel Logs (LLL)) satisfies a given criteria. If the criteria is satisfied, another log is generated (High Level Log (HLL)) to give an overall summary or description of the problem to the network administrator.
Summarv of the Invention According to the present invention, a network administration system is provided for displaying the logs that have satisfied a rule-set criteria using a tree hierarchy with full explanations for each LLL and HLL,. This display makes it easier for the user to see the flow of logs and also demonstratf;s the true cause of a problem.
Using this information, the user may fix the root of the problem and avoid wasting time on proliferated failures caused by a root source.
Possible applications of the system according to. the present invention are:
- Monitor the status of developing code (testing/debugg;ing);
- Quick and summarized reports of a systems status;
- Customer support usage of tree hierarchical logs to either assist with customers faster or pass the information as a problem report.
2 - Marketing and Sales research of customer product usage (e.g. monitoring specific system activities and describing the usage behavior of customers).
Brief Description of the Drawings A detailed description of the preferred embodiment is set forth herein below with reference to the following drawings, in which:
Figure 1 is a block diagram of an exemplary network incorporating the system of the present invention;
Figure 2 is a table of a set of rules that have been defined for use in the network of Figure 1;
Figure 3 is a table showing an exemplary list of logs generated by the network of Figure 1;
Figure 4 (consisting of Figures 4a and 4b) shows a tree hierarchy generated from the logs generated in Figure 3, according to the present invention;
Figure 5 shows a graphical user interface of a tree hierarchy menu for use in the system of the present invention; and Figure 6 is a flowchart showing process flow for building a tree hierarchy according to the preferred embodiment.
Detailed Description of the Preferred Embodiment Traditionally, system error logs have been analyzed through human intervention in order to determine the sources of and to correct system errors.
Thousands of logs can be generated by a single problem. For example, if a T1 line goes down, error logs could be generated by thousands of phones that cannot find a dial tone. It is known in the prior art to automatically filter error logs through "rule
3 sets" to determine if a combination of logs satisfies a given criteria. One example of such an automated process is a product from PlexisTM called Plexis EDI
ToolkitTM.
If the criteria is satisfied, it is known in the art either to generate a further log or to provide an overall summary for describing the problem to the technician. Thus, it is known to generate Higher Level Logs (HLL) from Lower Level Lags (LLL) in response to predetermined rule sets being satisfied. The Lower Level Logs (LLL) are generated by network applications or devices. Such systems are valuable because the HLLs help to explain to the system administrator/designer what is really going on in the system.
There are instances where HLL's generate more HLL logs, or combinations of LLL's and HLL's generate new HLL's. Since HLL's are generated by LLL's and possibly other HLL's, the technician needs to see how the HLL's are triggered since rule-sets can be complex and not easily understood.
According to the present invention, each LLL that is part of a satisfied rule-set is displayed as a node with a link to the HLL node output from the satisfied rule-set. If an HLL is part of a different and satisfied rule-set, then a link is made from the HLL node to the other HLL node output from the satisfied rule-set. The size of the tree depends on the number of LLL and HLL that satisfy the rule-sets. A
log that does not satisfy any rule-set may be shown as an independent node with no links to other nodes.
Figure 1 shows a typical network comprising a plurality of phones (P2 to P4) connected to a server implemented PBX (PBX 1), a further phone Pl connected to a client server C1, both the client C1 and PBX 1 being connected to a PBX2. The PBX2 is connected to a Ti trunk in a well known manner. Each of the devices shown in Figure l, with the exception of the trunk, has the capability of generating logs to-inform a technician of the device status. The tree hierarchy is generated using software tools (Visual BasicTM, C++) to read the logs, parse the logs to determine LLL's and HLL's, use a Graphical User Interface (GUI) as shown in Figure 5 to show the tree links, and assign boxes for each log with an explanation field for users to enter their comments or read previously saved explanations.
4 The network configuration of Figure 1 is for illustration purposes only, and may incorporate a host of other devices and networks.
As indicated above, Figure 2 demonstrates a set of rule sets that are defined for use in the network in Figure 1, and Figure 3 shows a typical list of logs (HLL's and LLL's) that are generated from the network in Figure 1. The system parses the Brief Description in order to identify the source of a particular error log.
According to the invention, a network administration system is provided for displaying a tree hierarchy in response to the generation of error logs.
Operation of the system to generate the tree hierarchy is set forth in greater detail below with reference to Figures 4, 5 and b. Returning to Figure 1, the inventive system is incorporated into PBX 2. Alternatively, the network administration system may be implemented in a separate server connected to the network.
As shown in Figure 4, a tree hierarchy is generated for showing links between HLLs and LLLs to facilitate the identification and correction of network problems.
For the illustrated example, error logs P6000, P6001 and P6002 are generated by devices in the network, resulting in creation of HLL001. LogC3000 and LogPBX2000 result in creation of HLL002. Furthermore, HLL001 and HLL002 result in creation of HLL003. When displayed to the user via a monitor at PBX 2, the identification and solution of network problems is greatly simplified over prior art techniques.
Returning to Figure 5, a logs tree hierarchy menu GUI screen is shown for assigning boxes to each log with an explanation field for users to enter their comments or read previously saved explanations.
As shown in Figure 6, and as set forth in pseudo-code herein below, the received error logs are compared to active rule sets (Figure 2). If the log is used in one of the rule sets, it is saved. Otherwise, the program ends. If the criteria for any of the stored rule sets is satisfied, then the system builds a tree hierarchy (Figure 4) from logs specified by the satisfied rule set. After building the tree hierarchy, or in the event that none of the rule set criteria are fully satisfied, the program ends.

Exemplary pseudo-code of the process for implementing the network administration system of the present invention is as follows:
Program function log tree hierarchy Retrieve log $ Compare log to active rule sets If any rule bet uses log Store log If any rule set fully satisfied Attach links to logs in relation to satisfied rule sets 1 ~ Parse description in logs Attach explanations to each log While(HLLs in tree not connected to related rule sets) Traverse tree to fmd HLL
If current HLL came from a different rule set 1$ Attach link from current HLL to its ancestor HLL
endif endif endwhile endif 2~ End of log tree hierarchy Alternatives and modifications of the invention are possible within the sphere and scope as set forth in the claims appended hereto.

Claims (4)

What is claimed is:
1. A network administration system for generating a tree hierarchy display of error logs received from network devices and applications, each of said logs including a brief description of error cause and predetermined higher level ones of said logs being created in response to generation of predetermined combinations of lower level ones of said logs in accordance with user defined rule set criteria, said system comprising:
a user interface for entering explanations associated with predetermined ones of said error logs; and a computer readable medium having computer readable code means thereon, said code means for storing said lower level ones of said logs used in meeting said rule set criteria, and for any fully satisfied rule set criteria automatically displaying a tree hierarchy of said logs by attaching links between said logs in relation to said rule set criteria wherein said code means further includes parsing means for parsing the description in each of said logs, and attachment means for automatically attaching said descriptions and explanations to said logs.
2. The system of claim 1, wherein said code means further includes means for traversing said tree hierarchy to identify any of said higher level ones of said logs not connected via said links and automatically attaching said logs to their ancestor logs.
3. A method of generating a tree hierarchy display of error logs received from network devices and applications, each of said logs including a brief description of error cause and predetermined higher level ones of said logs being created in response to generation of predetermined higher level ones of said logs being created in response to generation of predetermined combinations of lower level ones of said logs in accordance with user defined rule set criteria, said method comprising the steps of:
generating a user interface for entering explanations associated with predetermined ones of said error logs;
storing said lower level ones of said logs used in meeting said rule set criteria, and automatically displaying a tree hierarchy of said logs for any fully satisfied rule set criteria by attaching links between said logs in relation to said rule set criteria, automatically attaching said descriptions and explanations to said logs for display within said tree hierarchy.
4. The method of claim 3, further comprising the step of traversing said tree hierarchy to identify any of said higher level ones of said logs not connected via said links and attaching said logs to their ancestor logs.
CA002343695A 2000-04-12 2001-04-10 Tree hierarchy and description for generated logs Expired - Lifetime CA2343695C (en)

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Application Number Priority Date Filing Date Title
GB0009067A GB2361382A (en) 2000-04-12 2000-04-12 Tree hierarchy and description for generated logs
GB0009067.0 2000-04-12

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CA2343695C true CA2343695C (en) 2006-01-24

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EP (1) EP1146689B1 (en)
CA (1) CA2343695C (en)
DE (1) DE60114070T2 (en)
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Also Published As

Publication number Publication date
EP1146689B1 (en) 2005-10-19
DE60114070T2 (en) 2006-07-20
EP1146689A3 (en) 2003-04-16
CA2343695A1 (en) 2001-10-12
US6816576B2 (en) 2004-11-09
EP1146689A2 (en) 2001-10-17
GB0009067D0 (en) 2000-05-31
DE60114070D1 (en) 2006-03-02
GB2361382A (en) 2001-10-17
US20020021788A1 (en) 2002-02-21

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