JP2000295221A - Network monitoring system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a database capable of quickly dealing with and maintaining a network monitoring system for network where a plurality of transmitters placed in each area are interconnected with path lines. SOLUTION: A processing section 10 automatically generates a path line name database 6 where transmitter information is in cross-reference with each path line on the basis of a path line name table 1 that defines all path lines, a path line connection table 2 that defines all path lines having host layer path lines, a path line block table 3 that adds information of a termination transmitter to all highest layer path lines, a frame information table 4 that defines cross-reference between transmitter information in alarm information and serial numbers of alarm collectors 12-1, 12-2 to unfiedly identify the alarm collectors collecting alarm information of a message form issued from a transmitter on the occurrence of a fault, and preferably a conversion table 5 that indicates a position accommodated in a transmitter in terms of a code.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a network monitoring apparatus, and more particularly to a network monitoring apparatus in which a plurality of transmission devices arranged in each area are connected by a path line.

A path line connecting a plurality of transmission apparatuses is usually hierarchized logically, and it is necessary to identify a failed transmission apparatus and the path line connected thereto. is there.

[0003]

2. Description of the Related Art As shown in FIG. 22, for example, a general communication network is composed of a plurality of transmission devices and a path line (sometimes abbreviated as "path") connecting the transmission devices. ing.

That is, transmission apparatuses A to C, D to F, and G to I are provided in stations in Tokyo, Osaka, and Fukuoka, respectively. The Osaka station and the Fukuoka station use the path lines A and B for the Tokyo station, respectively. The transmission devices A to C are interconnected by path lines DG, the transmission devices DF are path lines H and I, and the transmission devices GI are path lines J and K.
Are interconnected by

In order to monitor the network, there are provided collection devices 12-1 to 12-3 for collecting alarm information issued from each transmission device and a network monitoring device 20 for monitoring the alarm information. As shown in FIG. 23, for example, three 50 Mbps “paths E1 to E1”
E3 "and can be bundled to a speed of 150 Mbps. Each of the “paths E1 to E3” is composed of seven 6.3 Mbps “paths E11 to E17”. Accordingly, the number of 6.3 Mbps lines in a 150 Mbps path line is 21 lines.

When an abnormality occurs in a path line, alarm information in the form of a message indicating an abnormality in the path line is issued from a transmission device constituting the path line. This alarm information is obtained by extracting only the section between the Tokyo and Osaka stations in FIG.
When an error occurs in the "path line E11" of the "interval", the transmission device "device C" and the "device B" that terminate the "path line E1" which is the upper-layer path line because the "path line E11" cannot be used. , "Equipment B" and "Equipment E" terminating "path line D1", and "Equipment E" and "Equipment F" terminating "path line I1", respectively, relate to "path line E11". Alarm information is issued.

[0007] The issued alarm information is stored in the collection device 12.
Collected by -1 to 12-3, occurrence / recovery is determined by the monitoring device 20, and notified to the operator. This alarm information includes
Includes generator location information that can specify the location of the occurrence, and information on the path line connected to the transmission device.

Further, the monitoring device 20 specifies a path line that has become unusable as an abnormality from the alarm information,
You must notify the pass line user. However, the received alarm information is all data coded in a message format, and it is difficult for an operator to specify whether or not the path line has become unusable at a glance using only that information.

Therefore, it is necessary to define the following two pieces of information. Names that are easy for the operator to understand (path line names) for all path lines Alarm information in the form of messages (location information of generating units)
To all the alarm information that can generate the path line name defined in the above. Now, assuming that the path line name is assigned to the alarm information in the message format issued for the failure shown in FIG. As shown in (1), 24 data definitions (path line database) are required. The alarm information in the message format changes according to the number of transmission devices, and cannot be easily set because the setting method is different.

When a path line is set by full mounting,
50 Mbps x 3 (accommodated at 150 Mbps) = 3, 6.3 Mb
ps × 7 (accommodated in 50 Mbps) × 3 (50 Mbps) = 21
Therefore, if the path line name is assigned to the alarm information in the message format, 10 + 8 × 3 + 6 × 2
One = 160 data definitions are required.

[0011]

In the above case, since all the path lines existing in the network and the alarm information (position information of the generating unit) issued from the transmission device are manually defined, if the network increases, There is a problem that management man-hour becomes enormous, and (1) reduction of man-hour required for database creation becomes an issue.

[0012] As shown in FIG. 26, the path lines constituting the transmission devices include physical path lines (“path line E”, “path line D”, “path line A”,
And "path line H"), and the physical path line is a multiplexed logical path line ("path line E").
1 "and" path line D1 ". Furthermore, the logical path also accommodates a multiplexed logical path line (“path line E14”).

The alarm information (originating unit position information) issued from the transmission device is provided with physical path line information and logical path line information (accommodated position information). The alarm information in message format includes various types of alarm information for each device type of the transmission device, and the alarm information changes depending on the network configuration of the transmission device.

Therefore, in order to define / input the alarm information and the name of the path line, much specialized knowledge is required, and there is a problem that only a specific worker can create a database. The issue is that there is no specific limitation on the aged (no need for specialized knowledge).

Further, regarding the above-mentioned problems (1) and (2),
(3) Automatic creation of the path line name database is an issue in consideration of shortening the data creation time of the "path line name database" and providing accurate data. Therefore, in order to solve the above-mentioned problem, the present invention analyzes the alarm information in the form of a message issued from a transmission device in a network, and determines the affected path line from the position of the generating unit of the transmission device in which the alarm is occurring. It is an object of the present invention to provide a network monitoring apparatus having a database capable of promptly responding / maintaining a corresponding path line by specifying the name of the network monitoring apparatus.

[0016]

The concept of a network monitoring apparatus according to the present invention will be described with reference to FIG. First,
A "path line name table" 1, a "path line connection table" 2, a "path line section table" 3, and a "bridge information table" 4 are prepared. These tables can be created from the input operation unit 7 via the processing unit 10, for example.

The "path line name table" 1 can be composed of a line serial number, a line name, and a line type. The “path line connection table” 2 specifies the line serial number of the upper-layer path line from the line number of the logical (virtual) path line arranged hierarchically under the physically existing path line. It is defined to be able to.

The "path line section table" 3
Based on the "path line connection table" 2, it is defined such that the transmission device terminating the path line can be specified from the line serial numbers of all the top-level path lines. Further, the “bridge information table” 4 collects alarm information in a message format of the transmission device from the transmission devices 11-1 to 11-4 via the collection devices 12-1 and 12-2, and cannot be used as a failure. The relationship between the serial number of the collection device and the transmission device is defined so that the transmission device can be specified.

In addition to the above tables 1 to 4, a "conversion table" 5 for specifying a code system of alarm information in a message format related to the path line can be prepared. The processing unit 10 of the network monitoring apparatus of the present invention shown in FIG.
The concept of automatically generating the "path line name database" 6 will be described below.

First, data matching the "line serial number" defined in the "path line name table" 1 (this path line is hereinafter referred to as "path line 1") is retrieved from the "path line connection table" 2. Thus, the "line serial number" of the upper-layer path line (this path line is hereinafter referred to as "path line 2") can be specified, and the "upper-layer path line" can be specified.

The "termination device" for terminating the "path line 2" is specified as follows. The highest hierarchical path line existing on the uppermost direction side (lower direction side) of “path line 2” is specified. For all “path lines 2”, “upper-layer path line serial numbers” with “minimum connection order” are searched in the same manner as described above.
When the “upper / lower inversion flag” is “1”, the upper / lower inversion flag is set to “1” next because the upper / lower direction is all considered to be reversed on the data. Until “line” is searched, the path line with the largest connection order in the subsequent search is the highest-order side.

Further, this search processing is repeated until there is no more data that matches the search. The “upper-layer path line serial number” of the last retrieved data is the “upper-layer path line” (hereinafter, referred to as “path line 3”) existing at the uppermost direction side of “path line 2”.

Similarly, for all “path lines 2”,
By retrieving the “line serial number” of the “higher-level path line” that has the “maximum connection order”, the “highest-layer path line” (hereinafter referred to as “the highest-level path line”) that exists in the lowest direction of “path line 2”
The "line serial number" of "path line 4" can be specified.

As described above, when the "upper / lower inversion flag" is "1", the upper / lower inversion flag is set to "1" in order to consider the upper / lower direction in the data.
Until “upper-layer path line” in which “1” is found, the path line having the smallest connection order in the subsequent search is the lowest direction side. “Transmission device that terminates“ path line 2 ”” is specified.

By searching the “path line section table” 3 for data that matches the “line serial number” of the “path line 3”, the transmission device that terminates the upper and lower directions of the “path line 3” is determined. Can be identified. inside that,
The data whose “upper / lower” is “upper“ 1 ”” is the transmission device on the uppermost direction terminating “path line 2”. It should be noted that in the search for “path line 3”,
If the “lower” direction is “inverted”, “lower data” is adopted.

Similarly, data matching the "line serial number" of the "path line 4" is searched from the "path line section table" 3, and the "upper / lower" is "lower" 2 "". This is a transmission device whose data is in the lowest direction terminating "path line 2". If the “upper / lower” direction is “reversed” in the “path line 4” search,
Adopt "high-order data".

By retrieving data corresponding to the transmission device information specified as described above from the "bridge information table" 4, "collection" of the alarm collection device for collecting alarm information in the form of a message issued by the transmission device is performed. Device serial number ”can be specified.

Further, by searching the "conversion table" 5 for data that matches the line type defined in the "path line name table" 1 and the "transmission device type" specified as described above, the conversion type is changed. can get. By selecting a conversion method corresponding to the conversion type from the table, it is possible to specify data to be included in (the "conversion data portion") of the alarm information in the message format.

As described above, if the operator only needs the entire network configuration diagram as shown in FIG. 22 and the path line configuration diagram as shown in FIG. The "line connection table" 2, the "path line section table" 3, and the "bridge information table" 4 can be easily set, and the "path line name database" 6 can be automatically created using these tables 1 to 4. . Since this "path line name database" 6 has the same message format as the alarm information, there is no need to be particularly aware of the alarm information.

Therefore, the number of steps required to create a database is reduced and specialized knowledge is not required, so that there is no particular limitation on the database creator.

[0031]

FIG. 2 shows an embodiment of a network monitoring apparatus according to the present invention. In this embodiment, particularly, in the network shown in FIG. 24 and FIG. A case where the path line name database 6 when the upper path line E (150 Mbps) is formed by adding another two path lines E2 and E3 (both are 50 Mbps) to the path line E1 (50 Mbps) between them is automatically generated. Is shown.

Next, embodiments of tables 1 to 6 shown in FIG. 2 will be described below. (1) First, as shown in FIG. 3, the "path line name table" 1 contains three "line serial numbers", "line names", and "line types" for all the path lines as follows. Is defined as one data.

Line serial number: A number defined for each path line so that the path line can be uniquely identified in data management. Line name: All path lines for easy understanding by a user of the network monitoring device. Line type: Path line type defined by code information. (2) Next, as shown in FIG. For all path lines where path lines exist, “upper line serial number” and “upper line accommodation position” are defined as one data for “line serial number” of the own path line as described below.

Line serial number: the line serial number of the own path line defined in the path line name table Upper line serial number: the line serial number defined in the path line name table
Line serial number of the path line located in the upper layer as viewed from the own path line Upper line accommodation position: Position where the own path line is accommodated in the upper layer path line represented by the upper line serial number Upper / lower inversion flag: own path line Indicates whether the upper direction of the upper layer path line as viewed from the own path line is the same direction (0) or the opposite direction (1). Since the upper / lower direction of the path line is defined for convenience of data management, the lower-layer path line and the upper-layer path line are not necessarily in the same direction. Therefore, the direction is determined based on the “upper / lower inversion flag”.

Connection order: When there are a plurality of upper-layer path lines as viewed from the own path line, the number indicates the order of the path line as viewed from the upper direction of the own path line. (3) As shown in FIG. 5, the "path line section table" 3 defines "line serial number", "upper / lower", and "device information" as one data for all uppermost path lines as follows. .

Line serial number: The line serial number of the own path line defined in the path line name table Upper / lower: Since the path line is terminated by two transmission devices at both ends, the transmission device that terminates the path line is There are two. In terms of data management, by defining the upper direction / lower direction with respect to the path line, a “transmission device that terminates the upper direction of the path line” and a “transmission device that terminates the lower direction of the path line” are identified.

The “upper / lower” indicates which of the following transmission apparatuses terminates the “upper direction (1)” or the “lower direction (2)” of the path line. Equipment information: “Equipment type”, “station”, “floor No.”, “group No.”, “frame N” of the transmission equipment terminating the path line
o. "," SYS No. "," IF No. ", and" HW No. "
Consists of code information. (4) As shown in FIG. 6, the "frame information table" 4 is used to collect the alarm information in the form of a message issued from the transmission device. The number “collection device serial number” is defined, and the correspondence between the transmission device that issues the alarm information in the message format and the “collection device serial number” of the alarm collection device that collects the message format alarm information is defined.

Device information: Information on a transmission device that issues alarm information in the form of a message collected by the alarm collection device (each collection device serial number). “Device information”, “Station”,
It consists of code information representing “floor No.”, “group No.”, and “frame No.”. Collection device serial number: A number defined to uniquely identify the alarm collection device. (5) As shown in FIG. 7 as the "conversion table" 5, in the message format of the alarm information, the line type of the path line serving as the information source In consideration of the fact that the code system changes depending on the type of the transmission device to which the path line is connected, the conversion type corresponding to the line type and the device type is defined as follows.

Line type: Indicates the line type of the path line serving as the information source of the alarm information in the message format. Device type: Indicates the device type of the transmission device that issues the alarm information in the message format.

Transmission speed: Represents the transmission speed of the path line which is the source of alarm information in message format. Conversion types 1 to n: represent a method of converting alarm information in the message format into data that enters the conversion data section. That is, the data to be included in the “conversion data 1 to n” portion has several patterns, and is defined as “conversion type” in the conversion type correspondence table shown in FIG.

In this case, the conversion type 1 is "S" shown in FIG.
YS "(short for SYSTEM, simply shown as SY in the figure), and there is only one pattern. The conversion type 2 includes two patterns, one is a fixed value and the other is “IF”. The conversion type 3 includes three patterns, and selects “HW” or “HW / AU” in addition to a fixed value. Conversion type 4 includes four patterns, and includes “current (OxFFFF) / reserve (Ox03E7)” and “TUG + T” in addition to fixed values.
U ”or“ TUG ”.

Here, AUGNo .: line capacity 150 Mbps AUNo .: line capacity 50 Mbps TUGNo .: line capacity 6.3 Mbps TUNo .: line capacity 1.5 Mbps (6) "Path line name database" 6 is as shown in FIG. In addition, it consists of "collection device serial number", "device information", "transmission speed", "conversion data 1 to n", "path line name" and "path line serial number", and "path line name" and "path It has the same data format as the alarm information ALM except for the “line serial number”. Also, alarm information ALM
Has the same data format as the “conversion table” 5 except for the “collection device serial number”.

FIG. 10 shows an example of a configuration showing path lines between Tokyo and Osaka in the network shown in FIG. 22, and FIG. 11 shows the path lines collectively.
FIGS. 12 to 16 show examples (search examples) of the tables 1 to 6 shown in FIGS. 3 to 9, and FIG. 17 shows these tables 1 to 6 as a whole.

The procedure for automatically generating a path line name database will be described below with reference to FIGS. 12 to 17 based on the flowchart shown in FIG. [1] Retrieve line serial number (FIGS. 12, 17, and 18)
(See (1)). "Path line name table" 1 is selected and this table 1
Then, "line serial number" of "path E11" is searched.

From the retrieved data, the "line serial number" of "path E11" is found as follows, and is saved in the work area (FIG. 18 (1a)). “Line serial number” of “path E11” = 100 [2] A higher-level path line of “path E11” is searched (see the same and (2)).

Data matching "line serial number = 100" is retrieved from the "path line connection table" 2. Then, the “line serial number” of the higher-layer path line of the “path E11” is found from the retrieved data as follows. “Line serial number” of upper-layer path line of “path E11” = 1
0,11,12 [3] Search for the highest hierarchical path line located on the highest / lowest direction side of “line serial number = 10,11,12 ” (FIGS. 13 to 17 and 18 (3 ), (4)). In the case of “line serial number = 10” The upper layer path line of “line serial number = 10” is searched from the “path line connection table” 2 and the following result is obtained.

“Line serial number” = 4 is equivalent to “line serial number” = 10
Upper-layer path line Further, an upper-layer path line of "line serial number = 4" is searched from the "path line connection table" 2, and the following result is obtained. "No applicable data" → "Line serial number" = 10 highest hierarchy
If the path line is “line serial number” = 4 and “line serial number = 11”, the upper layer path line of “line serial number = 11” is searched from the “path line connection table” 2 and the following result is obtained.

“Line serial number” = 1, 2, 3 is “line serial number”
= 11 Upper layer path line “Path line connection table” 2 Referring to “connection order”,
When looking at the “line serial number 11”, a path line in the highest direction (connection order is the smallest) and a path line in the lowest direction (connection order is the largest) are searched, and the following result is obtained.

“Line serial number = 2” of “connection order = 1”
“Line sequence number = 3”, which is “connection order = 3” existing in the highest direction, is the lowest direction
Furthermore present on, searches the upper layer path line "Line serial number = 2", to obtain the following results.

“No applicable data” → “line serial number” = 11
In the case of “line serial number” = 2,3 “line serial number = 12”, the upper layer path line of “line serial number = 12” is searched from the “path line connection table” 2 and the following result is obtained. obtain.

“Line serial number” = 5 is equivalent to “line serial number” = 12
Upper-layer path line Further, an upper-layer path line of "line serial number 4" is searched from the "path line connection table" 2, and the following result is obtained. "Applicable
"No data" → "line serial number" = 12 top-level hierarchical path times
As for the line, “line serial number” = 5 [4] Search for a transmission device terminating “line serial number = 10, 11, 12” (FIGS. 14 to 17 and FIGS. 17, 18 (5),
(6)). In the case of “line serial number = 10”, the transmission device terminating the upper direction side of “line serial number = 10” is equal to the transmission device terminating the upper direction side of “line sequence number = 4” which is the highest hierarchical path line. .

This transmission device can be specified by searching the “path line section table” 3 for data matching “line serial number = 4” and “upper / lower = 1 (upper)”. Similarly, the transmission devices terminating the lower side of “line serial number = 10” are “line serial number = 4” and “upper / lower = 2”.
(Lower order) "can be specified as follows by searching from the" path line section table "3.

Terminating the upper side of “line serial number” = 10
Transmission device: “Device B” Transmission device that terminates the lower-order side of “line serial number” = 10:
In the case of “apparatus C” and “line serial number = 11”, the transmission device that terminates the upper direction side of “line serial number = 11” is “line serial number = 11” in the highest hierarchical path line.
This is equivalent to a transmission device that terminates the upper direction side of “line serial number = 2”, which is the path line that exists at the uppermost direction side as viewed from the side.

However, “line serial number = 2” is replaced by “line serial number = 1”.
1 ”is“ reversed ”in the upper direction (see FIG. 10).
), The data is equal to the transmission device that terminates the lower side of “line serial number = 2” instead of the upper side (illustrated by crosses). This transmission apparatus has “line serial number = 2” and “upper /
Data matching "lower order = 2 (lower order)" can be specified by searching from the "path line section table" 3.

The transmission apparatus that terminates the lower side of “line serial number = 11” is the path line that is the lowest one of the highest-layer path lines when viewed from “line serial number = 11”. This is equivalent to a transmission device that terminates the lower side of “line serial number = 3”. This transmission device can be specified as follows by searching the “path line section table” 3 for data matching “line serial number = 3” and “upper / lower = 2 (lower)”.

Terminating the upper direction side of “line serial number” = 11
Transmission device: “Device B” “Line serial number” = Transmission device that terminates in the lower direction of 11:
“Equipment E” In the case of “line serial number = 12” The transmission device that terminates the upper direction of “line serial number = 12” terminates the upper direction of “line serial number = 5” which is the highest hierarchical path line. Equivalent to transmission equipment.

This transmission apparatus can be specified by searching the “path line section table” 3 for data matching “line serial number = 5” and “upper / lower = 1 (upper)”. Similarly, the transmission devices terminating the lower side of “line serial number = 12” are “line serial number = 5” and “upper / lower = 2”.
(Lower order) "can be specified as follows by searching from the" path line section table "3.

Terminating the upper side of “line serial number” = 12
Transmission device: “Device E” “Line serial number” = Transmission device that terminates in the lower side of 12:
"Device F" In addition, the line serial number / line name already saved in the work area is set in the "line name database" 6 for the number of hits in the "path line section table" 3 (see FIG.
a)). [5] Search for an alarm collection device that collects alarm information in the form of a message issued by the transmission device (see FIG. 15, FIG. 17, and FIG. 18 (7)).

By retrieving data corresponding to the information of each transmission device retrieved in the above [4] from the "bridge information table" 4, an alarm collection device for collecting alarm information in a message format issued by each device is provided. "Collection device serial number"
Is specified as follows. An alarm collection device that collects monitoring information for "Device B"
"Collection device serial number" = 01 The alarm collection device that collects the monitoring information of "device C"
"Collection device serial number" = 01 The alarm collection device that collects monitoring information for "device E"
“Collection device serial number” = 02 The alarm collection device that collects the monitoring information of “device F”
"Collecting device serial number" = 02 Then, the collecting device serial number, device type, floor No., group No. and rack No. are set in the "line name database" (FIG. 18 (7a)). [6] Search for a conversion method for the data entering the conversion data section (see FIG. 16 and FIGS. 17, 18 (8), (9)). The line type of "path E11" is searched from "path line name table" 1 as follows.

The line type of “path E11” = 05 The “ line type = 05 ” of “path E11” and the transmission devices “device B”, “device C”,
Data matching the conversion type in the “conversion table” 5 (see FIG. 7) of the “device E” and the “device F” is searched as follows. Note that these conversion type data are set in advance for each device.

Conversion Conversion Conversion Conversion type 1 Type 2 Type 3 Type 4 “Device B” (Device type: 02) 1 2 3 4 “Device C” (Device type: 03) 1 2 2 4 “Device E” (Device type) : 02) 1 2 3 4 "Apparatus F" (apparatus type: 03) 1 2 24 From the conversion type-conversion method correspondence table (see FIG. 8), the data to be put in the conversion data section of the path line name database 6 is as follows. Specify as follows.

Conversion data 1 Conversion data 2 Conversion data 3 Conversion data 4 "Equipment B" SYSNo. IFNo. HWNo./AUNo. TUGNo. "Equipment C" SYSNo. IFNo. HWNo. TUGNo. "Equipment E" SYSNo. IFNo. HWNo./AUNo. TUGNo. “Equipment F” SYSNo. IFNo. HWNo. TUGNo. “SYSNo.”, “IFNo.” And “HWNo.”
Is the "path line section table" 3 retrieved in [4] above.
The “TUG No.” is determined from the device information of FIG. 5 (see FIG. 5), and the “path line connection table” 2 (see FIG.
(See Reference).

The data obtained as described above is automatically defined in the “path line name database” 6 (see FIG. 17). FIG. 19 shows that the alarm information ALM1 and ALM2 in the embodiment shown in FIG.
And D issued from the network monitoring device 2 according to the present invention via the collection devices 12-1 and 12-2.
0 is "path line name database" 6 as described above.
Is generated.

For example, regarding the alarm information ALM1,
Floor No. 1, group No. 1 of transmission device A of device type "01",
It is shown that the data is generated from the rack No. A001 via the collection device 12-1, and the transmission rate is “01”, the conversion type 1 is SYS No. 1, the conversion types 2 and 3 according to the conversion table and the correspondence table. Is a fixed value of “0xFFF” and the conversion type 4 is “0
xFFFF "is set to a fixed value.

The network monitoring device 20 that has received such alarm information ALM1 compares it with the “path line name database” 6 prepared in advance as described above.
The matching path line name can be searched, and the path line user can be notified of the Japanese name of the unusable path line by alarm.

FIGS. 20 and 21 show the display unit 8 (see FIG. 1) when the alarm information is issued from the collection device after the "name database" 6 of each path line is automatically generated as described above. 2 shows an example of the screen displayed. FIG. 20 shows an example of a display screen when the transmission device C shown in FIG. 10 (and FIG. 25) breaks down. At this time, the alarm information is "1" and is at the end of the path line E. "4", "2" and "5" at the end of the path line E1,
"3" and "24" at the end of the path line E11 are indicated.
When this matches one record in the database 6, each station, device type, transmission speed and rack number are displayed on the screen of FIG.

The transmission line and the path line name are displayed on the screen of FIG. When the transmission device A fails, the screens shown in FIGS. 21A and 21B are displayed in the same manner.

[0068]

As described above, according to the network monitoring apparatus of the present invention, there is a path line name table defined for all the path lines and an upper-layer path line as viewed from the own path line. A path line connection table defined for all path lines, a path line section table in which information of a terminating transmission device is added to all top-level path lines, and a message-type alarm issued from the transmission device when a failure occurs. A rack information table that defines a correspondence between a collection device serial number that uniquely identifies an alarm collection device that collects information and transmission device information in the alarm information, and a conversion that preferably indicates a position accommodated in the transmission device by a code. Based on the table, the processing unit is configured to automatically create a path line name database in which the transmission device information is associated with each path line. Since the, the following effects can be obtained.

(1) Since all patterns of coded monitoring information to be collected in the network monitoring system are automatically generated and made into a database, the number of man-hours is greatly reduced as compared with a case where a database is created manually. . (2) By creating a conversion table that defines the conversion patterns of the code system, it is possible to create a database for the conversion of the code system even if the person does not know all the patterns.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the principle configuration of a network monitoring device according to the present invention.

FIG. 2 is an embodiment diagram of a network monitoring device according to the present invention.

FIG. 3 is a format diagram of a path line name table used in the network monitoring device according to the present invention.

FIG. 4 is a format diagram of a path line connection table used in the network monitoring device according to the present invention.

FIG. 5 is a format diagram of a path line section table used in the network monitoring device according to the present invention.

FIG. 6 is a format diagram of a rack information table used in the network monitoring device according to the present invention.

FIG. 7 is a format diagram of a conversion table used in the network monitoring device according to the present invention.

FIG. 8 is a correspondence table of a conversion type and a conversion method used in the network monitoring device according to the present invention.

FIG. 9 is a diagram showing a format relationship between a path line database and message format alarm information used in the network monitoring device according to the present invention.

FIG. 10 is a diagram showing a configuration example of a path line between Tokyo and Osaka in an embodiment of the network monitoring apparatus according to the present invention.

11 is a diagram illustrating an example of a hierarchical configuration of the path line illustrated in FIG. 10;

FIG. 12 is a diagram showing a search example of a higher-order path line using a path line name table and a path line connection table in the network monitoring apparatus according to the present invention.

FIG. 13 is a diagram illustrating a search example (1) of a transmission device that terminates a path line based on a path line connection table in the network monitoring device according to the present invention.

FIG. 14 is a diagram showing an example (2) of searching for a transmission device terminating a path line based on a path line connection table in the network monitoring device according to the present invention.

FIG. 15 is a diagram illustrating a search example of an alarm collection device that collects monitoring information issued by a transmission device in the network monitoring device according to the present invention.

FIG. 16 is a diagram showing a search example of a conversion data creation method in the network monitoring device according to the present invention.

FIG. 17 is an overall flowchart of data in the network monitoring device according to the present invention.

FIG. 18 is a flowchart illustrating a procedure for generating a path line name database in the network monitoring device according to the present invention.

FIG. 19 is an overall view of an embodiment for determining a path line name from alarm information in the network monitoring apparatus according to the present invention.

FIG. 20 is a diagram showing an example (1) of an alarm display screen in the network monitoring device according to the present invention.

FIG. 21 is a diagram showing an example (2) of an alarm display screen in the network monitoring device according to the present invention.

FIG. 22 is a diagram illustrating an example of the entire configuration of a general network to which the present invention is applied.

FIG. 23 is a diagram showing a hierarchical structure of a general path line.

FIG. 24 is a diagram showing a general path line monitoring information issuing process.

FIG. 25 is a diagram showing a general path line monitoring information issuing position.

FIG. 26 is a diagram illustrating a connection relationship between a general path line and a transmission device.

[Explanation of symbols]

 1 path line name table 2 path line connection table 3 path line section table 4 frame information table 5 conversion table 6 path line name database 7 input operation unit 8 display unit 10 processing unit 11-1 to 11-n transmission device 12-1, 12-2 Alarm Collection Device 20 Network Monitoring Device ALM, ALM1, ALM2 Alarm Information In the drawings, the same symbols indicate the same or corresponding parts.

Continued on the front page F-term (reference)

Claims (7)

[Claims] 1. A network monitoring device in which a plurality of transmission devices arranged in each area are connected by a path line, a path line name table defined for all path lines, As shown, a path line connection table that defines all path lines in which an upper layer path line exists, a path line section table in which information of a terminating transmission device is added to all top layer path lines, A rack information table that defines the correspondence between a collection device serial number that uniquely identifies an alarm collection device that collects alarm information in the form of a message issued from a transmission device and the transmission device information in the alarm information. A processing unit for automatically creating a path line name database in which the transmission device information is associated with each path line based on the Network monitoring device for. 2. The path line name database according to claim 1, further comprising a conversion table indicating, by a code, a position accommodated in said transmission device, wherein said processing table also stores said conversion table when said path line name database is created. A network monitoring device characterized by being included. 3. The apparatus according to claim 2, wherein when the processing unit searches the path line name database for the path line that matches the alarm information, the processing unit displays the name of the path line on the display unit. Network monitoring device. 4. The network monitoring apparatus according to claim 3, wherein the path line name table defines a line serial number, a path line name, and a line type as one data for all path lines. 5. The path line connection table according to claim 4, wherein the path line connection table is arranged based on the line serial number of a logical path line arranged in a hierarchical structure under a physically existing path line with respect to the line serial number. A network monitoring device, wherein an upper layer path line serial number, an upper path line accommodation position, an upper / lower inversion flag, and a connection order are defined as one data so that a line serial number of an upper layer path line is specified. 6. The path line section table according to claim 5, wherein said path line section table has a line serial number and an upper / lower order such that a transmission apparatus terminating said path line is specified from said line serial number with respect to all uppermost hierarchical path lines. A network monitoring device, wherein lower-level information and transmission device information are defined as one data. 7. The position in which said conversion table is accommodated in said transmission apparatus according to the line type of the path line serving as the information source of said alarm information and the transmission apparatus type to which said path line is connected. A network monitoring device, wherein a conversion type is defined so as to be able to specify a conversion type.