JP3984181B2 - Error information notification and processing method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a technical field for performing service management of communication services using a computer.
[0002]
[Prior art]
In order to smoothly provide communication services, an OSS (Operation Support System) for managing and operating various communication devices is provided. According to various standard recommendations by ITU-T, TMF, etc., the functional layer of OSS is in the direction of progressing maintenance for each functional layer such as a service management function layer, a network management function layer, and a device management function layer. On the other hand, the exchange of information such as commands and notifications exchanged between OSSs is also being standardized. By adopting standardized specifications, it can be expected that the production cost of OSS will be reduced and that multi-vendor communication devices will be supported.
[0003]
The lower OSS 2 (see FIG. 1A) and the communication device 3 (see FIG. 1B) that have transmitted the control command 4 from the upper OSS 1 and received the control command 4 as shown in FIG. A system that returns a control command response 5 to the host OSS 1 is taken as an example. Here, the upper OSS 1 represents a management system, and the lower OSS 2 and the communication device 3 represent controlled target management systems.
[0004]
Standardization of the control command 4 that gives commands to the lower-level OSS 2 and the communication device 3 is also in progress. The target error information of the control command response 5 is a response that is returned to the command request source host OSS 1 when the corresponding processing cannot be performed in the lower OSS 2 or the communication device 3 that has received the control command 4. There are various methods for expressing error information depending on the lower-level OSS 2 and the communication device 3, but numerical values, character strings, enumeration types, and combinations thereof are applied.
[0005]
1. Error information expression method There are two types of error information notification standard provided by each communication protocol and error information notification defined in the process of OSS production.
[0006]
In SNMP (Simple Network Management Protocol), which is one of the standard communication protocols, tooBig (1), noSuchName (2), and badValue (3) are standard errors in RFC1157 (see Non-Patent Document 1) established by IETF. , ReadOnly (4), and genErr (5) are defined. However, with this information alone, it is difficult to define a handling method in the host OSS 1 that has received the error information. In order for the host OSS 1 to know more detailed error information, it is necessary for the OSS application creator to independently create a process for obtaining detailed information.
[0007]
In addition, in CMIP (Common Management Information Protocol) which is one of communication protocols, CMIS errors defined by the CMIS used are defined by the CMIS standard of ISO / IEC 9595. The CMIS error is a character string type. However, since it is difficult to receive information necessary for the maintenance operation of the communication device only with the standard CMIS error, ITU-T X. In 711 (see Non-Patent Document 2), an OSS application producer can set arbitrary error information so that more detailed error information can be obtained in addition to the standard CMIS error for a processing failure which is one of CMIS errors. It is prescribed as follows. However, ITU-T X. In the processing failure rule of 711, there is no mention of a specific naming method and operation method of error information.
[0008]
Further, CORBA (Common Object Request Broker Architecture), which is one of communication protocols established by OMG, which is a standardization organization, provides standard exceptions as error information. This is described in a string type. In addition, an exception can be defined by an OSS application producer. ITU-T X. The exception format for the CORBA operation rules defined in 780 is described in a character string type. Each standard that uses CORBA as a communication protocol specifies the ITU-T X. Error information is standardized with reference to 780 (see Non-Patent Document 3). As a result, the application producer can describe arbitrary error information as a character string. However, it is difficult to deal with the case where the error information is represented by a combination of a numerical value, a character string, or the like in the lower OSS 2 or the communication device 3.
[0009]
2. Error information operation method The following two operation methods will be described.
[0010]
(1) Response to standard recommendations, etc. The error information of control command response 5 in FIG. 1 defined by standard recommendations established by various standardization organizations is based on the assumption that the OSS is operating in a normal state. It is defined assuming standard operation considering operation flow-through, and is assumed to be used in an abnormal state such as an OSS or server system failure or communication line failure. There are fewer types than the error information of the control command response 5 that is considered necessary when actually applying.
[0011]
Therefore, it is not sufficient for the upper OSS 1 to deal with only error information defined in the standard recommendation or the like. On the other hand, it is difficult to cope with error information of all control command responses 5 that may be transmitted in advance in any lower-level OSS 2 or communication device 3.
[0012]
Further, the communication device 3 and the lower level such that there are more types of error information defined in the new communication device 3 and the lower OSS 2 than those defined in the operating system are newly added to the operating system. When adding OSS 2, (1) a method of newly adding an error information rule, and (2) a method of transmitting it considering existing error information items can be considered.
[0013]
In the case of the above (1), there is a demerit that the existing upper OSS 1 needs to be added with functions, the OSS production cost becomes higher, and the service start is delayed due to the longer OSS 1 production period. In the case of (2) above, it is not necessary to add the function of the upper OSS 1 as in the case of (1). However, when error information of the control command response 5 is received during operation, which error information actually causes it. There is a demerit that it is unclear whether there is any.
[0014]
(2) Processing after receiving error information The host OSS 1 cannot continue the scheduled business process flow by receiving the error information control command response 5. Usually, it is rolled back to the state before the start of the corresponding series of business process flows. The operator will investigate and isolate the error information individually. Depending on the error information, the error handling method can be handled automatically by the OSS, or there may be multiple causes of the error and analysis by the operator or the like may be required. I can't.
[0015]
[Non-Patent Document 1]
J. Case, M. Fedor, M. Schoffstall, J. Davin, “A Simple Network Management Protocol (SNMP)”, May 1990, [online], [March 11, 2003 search], Internet <http: / /www.ietf.org/rfc/rfc1157.txt?number=1157>
[Non-Patent Document 2]
ITU-T, “RECOMMENDATION X.711”, 10/1997, [online], [March 11, 2003 search], Internet <http://www.itu.int/ITU-T/asn1/database/ itu-t / x / x711 / 1997 / ＞
[Non-Patent Document 3]
ITU-T, “Recommendation X.780.1”, 08/2001, [online], [March 11, 2003 search], Internet <http://www.itu.int/rec/recommendation.asp?type= items & lang = E & parent = T-REC-X.780.1-200108-I>
[0016]
[Problems to be solved by the invention]
An object of the present invention is to establish a method for defining error information of a control command response 5 and a processing method in the host OSS 1 in order to cope with reduction of OSS application production cost and multi-vendor communication devices.
[0017]
[Means for Solving the Problems]
1. Error Information Representation Method Consider a general method for representing error information separately from normal error information. Communication protocols such as CMIP, SNMP, and CORBA are mainly used for exchanging messages such as commands between OSS and communication devices, particularly in the field of telecommunications. The format of the variable defined by the exchanged message includes (1) numeric type (2) character string type (3) enumeration type (enumerate) (4) logical type (boolean). Of these, (4) logical type is not used to represent error information. (3) Since the enumerated type contents can be expressed by numerical values or character strings, it is only necessary to have numerical values or character strings or both numerical values and character strings in order to express error information in a general manner. . Therefore, a structure type variable consisting of a numeric type variable and a character string type variable is defined in the error information.
[0018]
2. Error Information Operation Method Regarding the error information notation method, the error information of the structure type variable composed of the numeric type variable and the character string type variable and the error information normally used are used in combination. In this way, for example, error information such as what is defined in the standard recommendation and what is not, and information in which maintenance reaction is automatically performed by the host OSS and information that is not so are classified.
[0019]
That is, the present invention relates to a management system that transmits a control command to a controlled object management system or a communication device and receives a control command response, and a controlled object that receives a control command from the management system and transmits a control command response. An error information notification and processing method in a system having a management system or a communication device, wherein the management system transmits a control command to the controlled object management system or communication device, and the controlled object management system or communication device, receiving a control command from the management system, the controlled object management system or communication device, if it can not implement the corresponding process requesting the control command received from the management system, to be returned The error information has passed standardized error information regulations. A step of determining whether or not the controlled object management system or communication device has passed the standardized error information specification, normal standardized error information, and otherwise, a non-standardized error information. Returning error information having information indicating that it is information to the management system as a control command request source, and the management system sends a control command response from the controlled management system or communication device And when the management system is error information having information indicating that the received control command response is non-standard error information, the error information is displayed. seen containing a step of automatically executing the processing flow are, and Do is the standardized The error information having information indicating that it is error information is structural type error information composed of a combination of a numeric type variable and a string type variable, and the numeric type variable is the controlled object management system or communication The error information number specified by the device is used, and the character string type variable uses the specification of the error information specified by the controlled object management system or communication device as it is, and only one is specified. The error information notification and processing method is characterized in that only the specified one is applied in the case, and the variable value of the non-specified one is a default value .
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below.
[0022]
1. Error Information Representation Method When CMIP is used as a communication protocol, in addition to error information standardized in Processing Failure, a structural variable consisting of a numeric variable and a string variable is specified in Processing Failure. Represents error information that does not apply.
[0023]
Further, in addition to character string type exceptions defined by standardization in CORBA, the communication protocol defines structural type variables consisting of numeric type variables and character string type variables, and represents error information not applicable to the standard recommendation.
[0024]
2. Error information operation method The following two operation methods will be described.
[0025]
(1) Correspondence to the standard recommendation, etc. Of the error information of the control command response 5 defined by the lower level OSS 2 or the communication device 3, the same applies if the error information of the control command response 5 defined by the standard recommendation is the same The error information of the control command response 5 such as the corresponding standard recommendation is transmitted to the host OSS 1. On the other hand, when the error information of the control command response 5 specified by the standard recommendation or the like does not apply, the control command response 5 specified by the structural type format composed of a combination of a numeric type variable and a character string type variable. Error information is sent to the host OSS 1.
[0026]
The host OSS 1 is designed to process the error information of the control command response 5 defined in advance by a standard recommendation or the like. On the other hand, it is produced so as to perform processing such as screen display so that it can respond to the error information specification of the control command response 5 specified by the structure type format composed of the combination of the numeric type variable and the character string type variable. .
[0027]
As a result, the communication device 3 and the lower OSS 2 are newly added to the operating system such that the types of error information defined in the new communication device 3 and the lower OSS 2 are larger than those defined in the operating system. When adding error information that matches the error information of the standard recommendation, etc., it is mapped as such and sent in the normal error information format, and other error information is a structured type consisting of numeric type variables and string type variables. Sends out variable error information.
[0028]
(2) Processing after receiving error information Among the error information of the control command response 5 defined by the communication lower level OSS2 and the communication device 3, the information corresponding to the processing flow that is automatically handled by the higher level OSS1 is lower order OSS2. The error information of the corresponding control command response 5 is transmitted from the communication device 3, and the host OSS 1 performs the creation such as performing automatic processing. On the other hand, the error information of the control command response 5 defined by the structure type format composed of a combination of a numeric type variable and a character string type variable is not obtained for the processing flow that is not automatically handled by the host OSS 1. It is assumed that the message is sent to the host OSS1. The host OSS 1 performs a process that can cope with the error even if the error information is not displayed in advance.
[0029]
Of the structural type error information consisting of a combination of the numeric type variable and the character string type variable defined above, the numeric type variable indicates the error information number defined by the lower OSS 2 or the communication device 3 and the character string. The variable of the type uses the specification of the error information specified in the lower OSS 2 or the communication device 3 as it is, and if only one is specified, only the specified one is applied, and the variable value of the one not specified Leave the default value. The maintenance reaction after receiving the error information of the control command response 5 can also be that of the lower OSS 2 or the communication device 3. This method of representing general-purpose error information makes it possible to supplement standard specifications.
[0030]
[Example]
An example of the processing flow of the lower OSS 2 or the communication device 3 of the embodiment of the present invention is shown in FIG. 2A, and an example of the processing flow of the upper OSS 1 of the embodiment of the present invention is shown in FIG.
[0031]
As shown in FIG. 2A, the lower OSS 2 or the communication device 3 (controlled system management system) receives a control command from the upper OSS 1 (management system) and cannot execute the corresponding process requested by the control command. Error processing is started (S10). When the error process is started, it is determined whether or not the error information to be returned passes the error information rule of the standard recommendation (S11). If the error information rules of the standard recommendation are passed, the error information of the standard recommendation is transmitted to the host OSS 1 as a control command response (S12). On the other hand, if the error information rule of the standard recommendation is not passed, error information having information indicating that it is non-standardized error information defined in the present invention as a control command response is transmitted to the host OSS 1 (S13). ).
[0032]
As shown in FIG. 2B, the upper OSS 1 (management system) receives the control command response transmitted by the lower OSS 2 or the communication device 3 (controlled target management system) (S21). If the received control command response is standard recommendation control command response error information (S22), the processing flow for the prepared standard error information is automatically executed (S23). On the other hand, if the received control command response 5 is control command response error information having information indicating that it is non-standardized error information defined in the present invention (S24), the error information value, characters, etc. are displayed on the screen. Displayed (S25). Thereafter, analysis / separation by a specialized department or the like is performed (S26), and countermeasures are implemented (S27).
[0033]
Although the invention made by the present inventor has been specifically described based on the above-described embodiment, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. Of course.
[0034]
【The invention's effect】
As described above, according to the present invention, the lower OSS 2 and the communication device 3 do not consider the implementation of the upper OSS 1 and the control command response 5 of the control command response 5 specified by the standard recommendation is not included. Matters that correspond to error information are applied as per the standard recommendation, and error information that does not correspond to those of the control command response 5 specified in the structural type format consisting of the combination of the numeric type variable and the character string type variable. There is an effect that it is possible to transmit the error information of the control command response 5 to the upper OSS 1 by describing it according to the error information rule.
[0035]
Further, the upper OSS 1 prepares a flow corresponding to the error information of the control command response 5 defined by the standard recommendation and the like, and the error information of the control command response 5 unique to the lower OSS 2 and the communication device 3 cannot be predicted. It suffices to be able to receive and display the error information rule defined in the structural type format composed of the combination of the numeric type variable and the character string type variable. This eliminates the need for creation corresponding to the error information of the control command response 5 each time a new OSS or communication device 3 is generated, and has the effect of reducing the cost of software creation.
[0036]
Further, there is an effect that the lower OSS 2 and the communication device 3 in which the error information of the control command response 5 is defined as in the standard recommendation can be incorporated into the system without adding a function.
[Brief description of the drawings]
FIG. 1 is a diagram showing an overall system configuration.
FIG. 2 is a diagram showing an example of a processing flow of the upper OSS 1 and the lower OSS 2 or the communication device 3 according to the embodiment of the present invention.
[Explanation of symbols]
1: Upper OSS
2: Lower level OSS
3: Communication device 4: Control command 5: Control command response

Claims (1)

A management system that transmits a control command to a controlled object management system or communication apparatus and receives a control command response; a controlled object management system or communication apparatus that receives a control command from the management system and transmits a control command response ; An error information notification and processing method in a system comprising :
The management system transmitting a control command to the controlled object management system or communication device;
The controlled object management system or communication device receiving a control command from the management system;
When the control target management system or the communication device cannot perform the corresponding process requested by the control command received from the management system, it is determined whether the error information to be returned has passed the standardized error information regulations. And steps to
When the controlled object management system or communication device passes standardized error information regulations, normal standardized error information is indicated; otherwise, information indicating nonstandardized error information is displayed. Returning error information having a control command response to the management system as a control command request source;
The management system receiving a control command response from the controlled object management system or a communication device;
When the management system is error information having information indicating that the received control command response is non-standard error information, the error information is displayed. Otherwise, the prepared processing flow is automatically displayed. Steps to perform;
Only including,
The error information having information indicating that the error information is not standardized is structured type error information including a combination of a numeric type variable and a character string type variable, and the numeric type variable is the controlled variable. The error information number specified in the target management system or communication device is used, and the character string type variable uses the error information description specification specified in the controlled target management system or communication device as it is. An error information notification and processing method characterized in that, if only specified, only the specified one is applied, and the variable value of the not specified is a default value .

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