JP2000013506A - Line data gathering apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a line data gathering apparatus for efficiently gathering the data of plural lines at a low cost. SOLUTION: Traffic information flowing on the respective lines 271-273 which are detected in gathering parts 291-293 prepared for the number of the lines is interface-converted in corresponding interface parts 411-413 and are gathered. In a statistical information processing part 40, where the line of a monitoring object selected and specified by a selecting and a specifying part 43 from the outside is selected and specified, the plural lines selected and specified by a plural selection part 45 are selected, and a maximum processing packet number per unit time is held in a processing amount storage part 44 as the maximum throughput of the statistical information processing part 40 beforehand. When the throughput is exceeded, the occurrence of overflow is notified to the outside, and the prescribed processing such as data base making for network management is performed in an information processing executing part 46.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a line data collection device for collecting data flowing on a line, and more particularly to a line data collection device for collecting data on a plurality of lines and improving the collection efficiency. .

[0002]

2. Description of the Related Art Conventionally, in order to effectively use resources in a network, traffic information that changes due to congestion or a failure in the network is collected from various points in the network, and a statistical analysis process is performed on the collected traffic information. By doing
Network management is performed to make optimal use of resources in the network. As traffic information in this network is collected through a line such as a network dedicated line or a frame relay,
There is a line data collection device.

FIG. 6 shows an outline of the configuration of such a first conventional line data collection device. This first line data collection device is a frame relay line 10
, And collects line data in units of frames transmitted by dividing data of traffic information from various places in the network. Hereinafter, an example of a frame format flowing on the line 10 will be described.

FIG. 7 shows the outline of the configuration of a frame format transmitted on the line 10 shown in FIG. The frame format 11 includes an address field 13, an information field 14 and a frame check sequence (Frame Check sequence) between a plurality of flag data 12.
Sequence: Abbreviated below as FCS. ) 15 are inserted. Normally, flag data 12 is transmitted, and only when used for communication information, a frame in which data consisting of the address field 13 and below is inserted is transmitted. Assuming that the flag data 12 is 8-bit "01111110" data, the receiving side of this frame may synchronize with the 8-bit data "01111110". Information for identifying the data link is inserted into the address field 13, and communication information corresponding to the data link identified by the address field 13 is inserted into the information field 14. FCS15
Is a code for error control detection of a plurality of pairs of information 16 of such an address field 13 and an information field 14 identified thereby.

The address field 13 is 2 bytes long and has a data link connection identifier (Data Link Co.).
nnection Identifier: Hereinafter, abbreviated as DLCI. ) Are divided into an upper DLCI value 17 and a lower DLCI value 18. Extended Address File
ld: Hereinafter, abbreviated as EA. Bits 19 and 20 are 1 bit long, and when "0" indicates that the next byte string is also followed by the address field, and when "1" indicates the end of the byte string of the address field. here,
Since the address field 13 is 2 bytes long,
The EA bit 19 becomes "0" and the EA bit 20 becomes "1".

[0006] Further, on the lower side of the address field 13 is a forward explicit congestion notification (Forward Explicit Congestion notification).
ion Notification: Hereinafter, abbreviated as FECN. ) Bit 2
1 and backward explicit congestion notification (Backward Explicit Cong
estion Notification: Hereinafter, abbreviated as BECN. ) Bit 22. The FECN bit 21 is set to “1” to notify the receiving side of the occurrence of congestion of the transmission frame when the transmission frame is congested in the network constructed by the frame relay line. The BECN bit 22 is set to “1” to notify the receiving side of the occurrence of congestion of the received frame when the received frame is congested in the network constructed by the frame line. On the receiving side, various congestion controls are performed using the FECN bit 21 and the BECN bit 22, for example, lowering the transmission band or prompting the transmitting side to retransmit from the receiving side. In addition, discardable indication (Discard Elig
The visibility indicator (DE) bit 23 indicates whether the frame can be discarded in the network when network congestion occurs.

[0007] Communication data from within the network is transmitted on the line 10 shown in FIG. 6 as a frame having such a format configuration. At this time, the type of information of the communication data is identified by the address field 13.

Hereinafter, the description will be continued by returning to FIG. 6 assuming that the line 10 is a frame line.

[0009] A branch cable 24 is connected to the line 10, and the first line data collection device monitors a frame flowing on the line 10 via the branch cable 24. The first line data collection device includes a collection unit 25 and a statistical information processing unit 26. The collecting unit 25 is configured as shown in FIG.
By monitoring and synchronizing the flag data 12 of the frame format shown in (1), the address field 13 of the frame including the traffic information is detected. The frame data on the line 10 detected by the collection unit 25 is
The information is sent to the statistical information processing unit 26, and predetermined statistical processing such as creation of a database for network management is performed.

The first line data collection device shown in FIG. 1 collects traffic information flowing on a single line. However, as the network configuration becomes complicated, a large-scale system using a plurality of lines is used. Network management is performed. When there are a plurality of lines for transmitting the information to be collected, the first line data collection device as described above is installed by the number of lines, or the first line data collection device is switched by an external switch as follows. The second line data collection device will be installed. Hereinafter, the second line data collection device will be described.

FIG. 8 shows an outline of the configuration of a second line data collecting apparatus for collecting traffic information of such a plurality of lines. Here, the case of three lines will be described. The second line data collection device collects 3 lines 27 _1, 27 _2, 27 ₃ data traffic information from the reticuloendothelial each place is transmitted by being divided respectively over a packet or frame of the network leased line or Frame Relay I do. The format of the frame transmitted on these three lines 27 _{1 to} 27 ₃ is the same as that shown in FIG.

[0012] The line 27 _{1-27 3} are each branch cable 28 _{1-28 3} connection, the second line data collection device via a respective branch cable 28 _{1-28 3,} line 27 ₁ monitoring the frame containing traffic information flowing on to 27 ₃ each line. The second line data collection device collects the collection units 29 _{1 to} 29 29 corresponding to these lines.
_3, a line selector 31 to select only alternatively one line from the line 27 _{1-27 3} by the external switch 30, and a statistical information processing unit 32. Each collecting unit 29 ₁ to 29 _3, by synchronizing monitors the frame format flag data 12 shown in FIG. 7, for detecting the address field 13 of the frame containing the traffic information. Each line 27 detected by the collecting unit 29 ₁ to 29 ₃
Frame data on _{1-27 3} is sent to the line selector 31.

An operator of the second line data collection device;
Or by the network administrator switched using an external switch 30 the line to be monitored out of the line 27 _{1-27 3,} collecting 29 _{1-29 3} inputted to the line selector 31
Collected data of any one of the lines can be transmitted to the statistical information processing unit 32. The statistical information processing unit 32 performs predetermined statistical processing such as creation of a database for network management in the information processing execution unit 34 via an interface unit 33 for identifying a line of input collected data and performing predetermined data conversion. Is performed.

[0014]

When such a conventional line data collection device collects data of a plurality of lines and processes the data, only the line data of one line is used as in the first line data collection device. When the data cannot be collected, the first line data collecting device for the number of lines is required, so that there is a problem that the cost becomes extremely high.

Further, when the line to be monitored is switched by an external switch by an operator of the apparatus or a network administrator as in the second line data collecting apparatus, the amount of collected data from the line selected by the external switch is not large. Be specific. However, the statistical information processing unit 32 that processes the collected data from the line selection unit 31 needs to have a processing capability capable of processing the amount of data from the selected line. In general, the transmission capacity of a line is predetermined, and for example, 1.5 megabits of data can be transmitted per second (1.5 Mbps). The packet length on the line is variable, and ranges from 64 bytes to 4 kilobytes. Since each packet has additional information such as a destination, the statistical information processing unit 32 needs a maximum packet data processing capability when the packet length is a minimum of 64 bytes. However, such data of the maximum capacity is not always collected, and there is almost no case where the entire processing capacity of the statistical information processing unit 32 is effectively used.

For example, if a network administrator wants to monitor a user who is performing extremely heavy communication, a line data collection device has been occupied to monitor this line. Was. In such a case, monitoring other lines as described above would be very costly, or would require very complicated switching work. It is desirable for the network management side to monitor a plurality of lines efficiently at low cost.

SUMMARY OF THE INVENTION An object of the present invention is to provide a line data collecting apparatus which efficiently collects data of a plurality of lines at a low cost while having the same processing capacity as the conventional one.

[0018]

According to the first aspect of the present invention, there are provided (a) a plurality of collecting means for collecting predetermined data transmitted on each line corresponding to each of the plurality of lines;
(B) line designation means for designating a line to be monitored from the lines, and (c) multiple selection for selecting a plurality of data collected by the collection means corresponding to each of the plurality of lines designated by the line designation means. Means, and (d) statistical data processing means for performing statistical processing using data on the lines collected by the collecting means selected by the plurality of selecting means.

That is, according to the first aspect of the present invention, predetermined data on each line is collected by the collecting unit corresponding to each of the plurality of lines, and only the line to be monitored specified by the line specifying unit is selected by the plurality of selecting units. Allows multiple selections. The statistical processing means performs statistical processing using the data collected from the plurality of selected lines.

According to the second aspect of the present invention, (a) a plurality of collecting means for collecting predetermined data transmitted on each of the plurality of lines, and (b) processing the collected data. Parameter storage means for storing the quantity as a predetermined parameter; (c) a line designation means for designating a line to be monitored from the lines; and (d) a line designation means for designation from the collection means. A plurality of data on the line collected by the collecting means corresponding to each of the plurality of lines are selected, and the sum of the processing amounts of the data on the plurality of lines specified by the line specifying means is stored in the parameter storage means. A plurality of selection means for notifying the occurrence of overflow to the outside when the number of parameters exceeds the number of parameters; and (e) the collection means selected by the plurality of selection means. To and a statistical processing section for performing statistical processing using only the data amount for processing collected data stored in said parameter storage means for collecting the line data collection device.

That is, according to the second aspect of the present invention, the collecting means collects predetermined data on each line corresponding to each of the plurality of lines, and selects only a plurality of lines to be monitored designated by the line specifying means. Allows multiple selections. On the other hand, the parameter storage means stores in advance the amount of processing of the collected data, and when a plurality of selections are made by the plurality of selection means, the sum of the processing amounts of the data on the plurality of lines designated by the line designation means is determined. When a parameter stored in the parameter storage means is exceeded, the occurrence of an overflow is notified to the outside. Statistical processing is performed by statistical processing means using data collected from a plurality of selected lines.

According to the third aspect of the present invention, (a) a plurality of collecting means for collecting predetermined data transmitted on each of the plurality of lines, and (b) processing the collected data. (D) parameter storage means for storing the amount as a predetermined parameter, (c) collected data amount storage means for storing a predetermined amount of collected data from each line corresponding to the collection means, and (d) A line designation means for designating a line to be monitored from the lines,
(E) selecting a plurality of data on the line collected by the collecting means corresponding to each of the plurality of lines specified by the line specifying means from among the collecting means, and corresponding to the plurality of lines specified by the line specifying means; A plurality of selection means for notifying the occurrence of overflow to the outside when the sum of the collected data amounts of the respective lines stored in the collected data amount storage means exceeds the parameter stored in the parameter storage means, (F) statistical processing means for performing statistical processing by using only data for processing the amount of collected data stored in the parameter storage means collected by the collection means selected by the plurality of selection means. A line data collection device is provided.

That is, according to the third aspect of the present invention, predetermined data on each line is collected by the collecting unit corresponding to each of the plurality of lines, and only the line to be monitored designated by the line designating unit is selected by the plurality of selecting units. Allows multiple selections. On the other hand, the parameter storage means stores in advance the amount of data collected and the amount of data collected by each collection means from each line, respectively.
When a plurality of selections are made by the plurality of selection means, when the sum of data collected from the plurality of lines designated by the line designation means exceeds a parameter stored in the parameter storage means, the occurrence of an overflow is notified to the outside. ing. Statistical processing is performed by statistical processing means using data collected from a plurality of selected lines in this manner.

According to a fourth aspect of the present invention, in the line data collecting apparatus according to the second or third aspect, the maximum number of packets processed per unit time is used as the unit of data processing amount or collected data amount. Features.

That is, in the present invention, the parameter storage means stores the processing amount of the statistical processing means in units of the maximum number of packets processed per unit time, and the collected data amount storage means stores the processing amount of each line per unit time. The amount of data collected by the collecting means in units of the maximum number of processed packets is stored in advance.

According to a fifth aspect of the present invention, there is provided the line data collection apparatus according to the second or third aspect, wherein the data processing amount or the collected data amount is based on the average number of packets processed per unit time. Features.

In other words, in the invention according to claim 5, the processing amount of the statistical processing means in units of the average number of packets processed per unit time is stored in the parameter storage means, and the collected data amount storage means is stored in the per-unit time of each line. The amount of data collected by the collecting means in units of the average number of packets processed is stored in advance.

[0028]

BEST MODE FOR CARRYING OUT THE INVENTION

[0029]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to embodiments.

FIG. 1 shows a schematic configuration of a line data collecting apparatus according to an embodiment of the present invention. However, the same parts as those of the second conventional line data collection device shown in FIG. Hereinafter, the data line collection of three lines will be described as in FIG. Line data collecting device in this embodiment, on the line 27 _{1-27 3} Frame Relay, collects frame data of traffic information from various locations in the network is transmitted by being divided respectively. These 3 lines 27 _1-27 format of a frame to be transmitted ₃ on is the same as that shown in FIG.

[0031] The line 27 _{1-27 3} are each branch cable 28 _{1-28 3} connection, the line data collecting device in this embodiment, each of these branch cable 28 ₁ -
28 ₃ through can be monitored frames containing traffic information flowing on the line 27 _{1-27 3} each line. Are collected 29 _{1-29 3} corresponding to the respective line connection, by synchronizing monitors the frame format flag data 12 shown in FIG. 7, respectively, the address of the frame containing the traffic information Field 13 is detected. Frame data on each line 27 _{1-27 3} detected by the respective collecting portions 29 ₁ to 29 ₃ are sent to the statistical information processing unit 40.

The statistical information processing section 40 includes a collection section 29 _1-
29 ₃ network data for each line that is collected via the interface unit 41 ₁ to 41 ₃ for interfacing transformation such as conversion of this an appropriate electrical signal by receiving the frame data transmitted in correspondence to the The information processing unit 42 performs predetermined processing such as creating a database for management. The operator of the line data acquisition device, or the network administrator has selected the specified portion 43 for selecting the line to be monitored from the line 27 _{1-27 3} from the outside. The information processing unit 42 includes a processing amount storage unit 44 that holds a parameter for determining in advance whether or not processing can be performed by the statistical information processing unit 40, and a processing target line that is externally designated by the selection designation unit 43. A plurality of selecting units 45 for selecting a plurality of units by referring to the parameters stored in the amount storing unit 44, and a database for network management for the traffic information on the line selected by the plurality of selecting units 45. And an information processing execution unit 46 for performing a predetermined process. The parameters held by the processing amount storage unit 44 include a fixed transmission capacity of 1.5 Mbp.
As s ability to process collected data amount from the line 27 _{1-27 3} with processable number of packets per unit time as information.

[0033] The configuration of the line data collecting device as described above, the traffic information flowing on the line 27 _{1-27 3} detected by the collecting unit 29 ₁ to 29 ₃ which are prepared by the number of lines, the corresponding interface unit 41 and interface conversion collect _{1-41 3.} The traffic information includes, for example, a failure or congestion occurrence notification monitored at various points in the network and its type and occurrence time, a recovery notification and its type and recovery time, and failure information including link information for identifying the occurrence location. is there. Line data collection device operator,
Or network manager, the line to be monitored out of the line 27 _{1-27 3,} can be selected at the selection designating unit 43 from the outside. In the statistical information processing unit 40 in which a line to be monitored is selected and designated from the outside, the maximum number of packets processed per unit time is previously stored in the processing amount storage unit 44 as the maximum processing capability of the statistical information processing unit 40. A plurality of lines can be selected by the selection specifying unit 43 within a range not exceeding the processing capacity. In this way, the plurality of selecting units 45 refer to the parameters stored in the processing amount storing unit 44 and send the traffic information of the plurality of lines selected for monitoring a plurality of lines to the information processing executing unit 46. . The information processing execution unit 46 performs predetermined processing such as occurrence or recovery of a failure or congestion that has occurred in the network for network management, and creation of a database that retains a history of the type and notification time.

FIG. 2 shows a main part of the configuration of the line data collection device in the present embodiment shown in FIG.
However, the same parts as those of the schematic configuration of the line data collection device shown in FIG. The statistical information processing unit 40, interface unit 41 ₁ to 41 for interfacing transformation such as conversion of this an appropriate electrical signal by receiving the frame data transmitted in correspondence to the respective collecting portions 29 ₁ to 29 _{3 3} is connected to the internal bus 50. The internal bus 50 is further connected to a central processing unit (Central Processing Unit: hereinafter abbreviated as CPU) 51 and a memory 52. CPU
Reference numeral 51 not only can execute a predetermined process such as creation of a database for network management in the information processing execution unit 46 described above, but also detects an overflow and notifies the outside to the outside. Select multiple lines to be monitored. The memory 52 stores a program of the CPU 51 for executing such processing, and also stores a result of the processing performed by the CPU 51 described above,
Statistical information processing unit 4 stored in processing amount storage unit 44 in FIG.
The maximum number of packets that can be processed per unit time of 0 can be held and can be referred to by the CPU 51 via the internal bus 50 at any time.

FIG. 3 shows an outline of the processing contents of the CPU 51. First, the statistical information processing unit 40 as a parameter stored in the memory 52
The maximum number of packets that can be processed per unit time is read (step S60). Then, CPU 51 monitors the collected data amount from the line by the selection specifying unit 43 is selected as a monitor target among the lines 27 ₁ to 27 ₃ (step S61). Regarding the amount of data collected from the line selected and specified by the selection specifying unit 43, since the transmission capacity of the line is constant at 1.5 Mbps, since the packet length handled on the line is known, the unit time The CPU 51 can recognize the number of collected packets per hit. And the transmission capacity of the selected line is
It is determined whether or not the parameter held in the memory 52 read in step S60 is within the range of the maximum number of packets that can be processed per unit time of the statistical information processing unit 40 (step S62). If the transmission capacity of the selected line is
When it is determined that the parameter is out of the range of the parameter read in step S60 (step S62: N), it is notified to the outside as an overflow (step S63).
Then, after being notified to the outside as an overflow in step S63, or when it is determined that the transmission capacity of the line selected in step S62 does not exceed the range of the parameter read in step S60 (step S6).
2: Y), a new line 27 ₁ is selected by the selection designating section 43.
~ 27 ₃ line as monitored among detects whether it is selected (step S64).

If the line to be monitored is not newly selected by the selection specifying unit 43 in step S64 (step S64: N), the collected data amount of the line selected at that stage is monitored again. (Step S6
1), occurrence of overflow is detected. On the other hand, when a line to be monitored is newly selected by the selection specifying unit 43 in step S64 (step S64: Y),
The line selected and designated by the selection designation unit 43 is newly selected by the plural selection unit 45 (step S65). When the overflow detection processing by the CPU 51 described above is ended (step S66: Y), the processing is ended as it is (end). On the other hand, when the overflow detection processing by the CPU 51 is not terminated (step S66:
N), the collected data amount of the line selected at that stage is monitored again (step S61), and the occurrence of overflow is detected.

The frame data from the outside of a plurality of lines that are selected and designated by the selection designating unit 43, from the corresponding interface unit 41 ₁ to 41 _3, CPU 51 is transferred to the memory 52 via the internal bus 50. For example, when the need of multiple selected interface unit of the interface unit 41 ₁ to 41 ₃ of the transfer has occurred and transfers the interrupt processing or direct memory transfer of CPU 51. Thereafter, predetermined processing such as creation of a database for network management is performed.

FIG. 4 schematically shows the traffic status of each line monitored by the above-mentioned line data collecting apparatus as time elapses. FIG. 4 (a) represents over time the change in the maximum number of packets per unit of time interface unit 41 ₁ of FIG. From time t ₀ to time t _1, from time t ₄ to time t _5, it is assumed that the traffic information is flowing from each traffic p [Packet / Time in the network on line 27 _1. (However, t0 <t1 <t2 <... <T5 <t6.) FIG. 4B shows the interface unit 4 of FIG.
It represents over time the change in the maximum number of packets per _second unit time. From time t ₂ to time t _3, time t ₆ or later, each traffic p [packet
Time is assumed that traffic information is flowing from the network on line 27 _2. The memory 52 has a CPU 51.
It is assumed that the maximum number of packets P that can be processed per unit time is stored in advance as a value larger than the traffic p described above.

A line 27 _{1 is selected} as a line to be monitored by the operator or the network administrator by the selection designating section 43.
And the line 27 ₂ is designated selected. FIG. 4 (c)
Represents the change in the maximum value of the number of packets per unit time of the collected data from the line selected by the CPU 51 with the selection specifying unit 43 over time. That is, the traffic p to be processed in each period from time t ₀ to time t ₁ , from time t ₂ to time t ₃ , from time t ₄ to time t ₅ , and from time t ₆ is stored in the memory 52. Is smaller than the maximum number P of packets that can be processed per unit time by the CPU 51, which is determined to be selectable at the time of selecting and selecting each line. Will be processed. Thus, by selecting a plurality of pieces of information collected from each line, the statistical information processing unit 40
If the maximum number P of packets that can be processed per unit time is slightly larger than the traffic p for one line, the collected data for the two lines of the interface units 41 ₁ and 41 ₂ can be processed.

As described above, in the traffic of a plurality of lines shown in FIG. 4, data collected from each line is not collected at the same time in the same time zone. If the number is within the range of the maximum number of packets P per unit time that can be processed by the statistical information processing unit 40 stored in the data processing unit, collected data slightly larger than the traffic p for one line can be processed by selecting a plurality. The statistical information processing unit 40 can process collected data for a plurality of lines. Further, since the conventional had to switch the monitored by an external switch, when time toward t _2, such, for example, from time t ₁ as shown in FIG. 4 is a microscopic time, each line within this short time Since the monitoring target cannot be switched to another one at a time, it means that one line is monitored and monitored using the maximum capacity that the statistical information processing unit 40 can process. Therefore, collected data of a plurality of lines can be processed very efficiently as compared with the related art.

Modification

The line data collection device in this embodiment is
The statistical information processing unit 40 is given the maximum number of packets processed per unit time so as to minimize the occurrence of overflow due to the data collected from each line by the statistical information processing unit 40.

FIG. 5 schematically shows another example of a change over time of the traffic situation monitored by the line data collection device. FIG. 5 (a) represents over time the change in the number of packets the maximum per unit time interface unit 41 ₁ of FIG. From time t ₀ to time t _2, the from time t ₄ to time t _6, it is assumed that the traffic information from each traffic p ₀ [Packet / Time in the network on line 27 ₁ respectively is flowing. Further, FIG. 5 (b), represents over time the change in the number of packets the maximum per unit time of the interface portion 41 ₃ of FIG. From time t ₁ to time t _3, it is assumed that flow traffic information from the network on line 27 ₃ on the traffic p ₁ [packet time. After time t _5,
Traffic information from the traffic p ₀ [Packet Time in the network on line 27 ₃ is assumed to flows. Also,
It is assumed that the maximum number P of packets that can be processed by the CPU 51 per unit time is previously stored in the memory 52 as a value larger than the traffics p ₀ and p ₁ .

The line 27 _{1 is selected} as a line to be monitored by the operator or the network administrator by the selection designating section 43.
And a line 27 ₃ is selectively designated. FIG. 5 (c)
Represents the change in the maximum value of the number of packets per unit time of the collected data from the line selected by the CPU 51 with the selection specifying unit 43 over time. In other words, from the time t ₀ to time t ₁ traffic p _0, time t ₁
From until time t ₂ traffic (p ₀ + p _1), the traffic from the time t ₂ traffic p ₁ until time t _3, time t traffic p ₀ from ₄ to time t _5, from time t ₅ to time t ₆ 2p ₀ , and after time t _6, traffic p ₀ , and the CPU 51 performs processing in each period. However, when the traffic 2p ₀ is stored in the memory 52
Maximum number of packets P that can be processed per unit time of PU 51
Is greater than or the traffic (p ₀ + p ₁ ) is C
Maximum number of packets P that can be processed per unit time of PU 51
If it is larger, the data cannot be processed by the CPU 51 and an overflow due to the collected data occurs.

However, there are cases where it is desired to monitor as many lines as possible even if such an overflow is allowed. In such a case, the maximum number of packets P that can be processed by the CPU 51 per unit time and the maximum number of packets that can be processed per unit time of the selected line, p ₀ and p _1, which have been given to the memory 52 so far, are: By using an average traffic value in which the average value of traffic per unit time is used as a unit, it is possible in some cases to accommodate a larger number of lines that are further selectively designated. Therefore, while allowing such an overflow, the line data collection device can also leave a history of the generated overflow and leave useful information for later management.

The line data collecting apparatus according to the present embodiment stores the maximum number of processing packets P per unit time of the information processing execution unit 46 or the CPU 51 as a parameter in the processing amount storage unit 44 or the memory 52 of the statistical information processing unit 40. I was trying to remember it. Then, the selection designation section 43
When a new line to be monitored is specified by
Since the transmission capacity of the specified line is constant, the CPU 5
In case of 1, the packet length handled on the line is known,
It was stated that the number of packets collected per unit time from a specified line could be easily recognized. However, by holding the traffic P1, P2, and P3 that can be collected for each line together with the maximum number P of packets processed per unit time of the information processing execution unit 46 or the CPU 51 in the processing amount storage unit 44 or the memory 52, 3
It is also possible to read out these parameters at once in step S60 to determine whether or not an overflow has occurred.

In the present embodiment and the modified example, the case where three lines are used as the plurality of lines has been described, but the number of lines is not limited. Any number of two or more lines may be used.

Furthermore, in the present embodiment and the modification, the frame relay line has been described as an example of the line.
The line is not limited to a frame relay line. The line may be a dedicated network line, or data flowing on the dedicated network line may be a packet.

Further, in the present embodiment and this modification, it is determined whether or not a plurality of packets can be selected based on a traffic amount in units of [packet / time] as a parameter. However, the present invention is not limited to this. . If the parameter can define the processing capacity of the information processing execution unit 46 or the CPU 51, for example, if the transmission capacity of the line is constant, [Mbp
[s] as a unit.

[0050]

As described above, according to the first aspect of the present invention, even if the statistical processing means has only one line's processing capability, data is efficiently collected if there is no data collection from the line at all times. And can be processed. Further, since a plurality of selections can be made, there is no need to switch the line to be monitored from the outside as in the related art, and efficient data collection and line monitoring can be performed.

According to the second aspect of the present invention, it becomes possible to collect data exceeding the data processing amount of the statistical processing means from a plurality of lines and process the collected data to monitor the lines. In particular, by storing the data processing amount in the parameter storage means in advance, it becomes possible to easily collect and process data from each line even when a complicated line monitoring of three or more lines is designated. .

Further, according to the third aspect of the present invention, it becomes possible to collect data exceeding the data processing amount of the statistical processing means from a plurality of lines, process the collected data, and perform line monitoring. Furthermore, by storing the amount of collected data corresponding to each line, it is possible to reduce the load of the process of selecting a plurality of lines.

According to the fourth aspect of the present invention,
By giving a data processing amount in units of the maximum number of packets to be processed per unit time as a parameter in advance, it is possible to minimize an overflow that occurs when collected data cannot be processed.

According to the fifth aspect of the present invention, the amount of data processing in units of the average number of packets processed per unit time is given in advance as a parameter, so that in an application field where the occurrence of overflow can be tolerated, Line monitoring can be performed.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram illustrating an outline of a configuration of a line data collection device according to an embodiment of the present invention.

FIG. 2 is a main part configuration diagram showing a main part of a configuration of a line data collection device in the present embodiment.

FIG. 3 is a flowchart showing an outline of processing of a CPU 51 in the embodiment.

FIG. 4 shows the interface units 41 ₁ and 4 in the present embodiment.
The change in 1 ₂ and the selection specifying unit 43 the maximum number of packets per unit of time collecting data from selected channel by over time is an explanatory view schematically showing.

FIG. 5 shows the interface units 41 ₁ and 4 in the present embodiment.
It is an explanatory view showing a change in the overflow of the relationship between the maximum number of packets per ₃ unit time.

FIG. 6 is a schematic configuration diagram showing an outline of a configuration of a conventionally proposed first line data collection device.

FIG. 7 is a format configuration diagram illustrating an outline of a configuration of a frame format.

FIG. 8 is a schematic configuration diagram showing an outline of a configuration of a conventionally proposed second line data collection device.

[Explanation of symbols]

27 _{1 to} 27 ₃ Frame relay line 28 _{1 to} 28 ₃ Branch cable 29 _{1 to} 29 ₃ Collection unit 40 Statistical information processing unit 41 _{1 to} 41 ₃ Interface unit 42 Information processing unit 43 Selection designation unit 44 Processing amount storage unit 45 Multiple selection Unit 46 information processing execution unit 50 internal bus 51 CPU 52 memory

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroshi Tahara 5-7-1 Shiba, Minato-ku, Tokyo Within NEC Corporation (72) Inventor Naohiro 1-chome, Kosugicho, Nakahara-ku, Kawasaki-shi, Kanagawa 403 NEC Telecom System Co., Ltd. (72) Inventor Mahiro Shimozen 1-chome, Kosugi-cho, Nakahara-ku, Kawasaki-shi, Kanagawa F-term (reference) 5K019 AA02 AC09 BA51 BB21 CC09 DC01 DC05 DC06 5K051 AA09 DD13 FF03

Claims (5)

[Claims] 1. A plurality of collecting means for collecting predetermined data transmitted on each line corresponding to each of a plurality of lines, a line specifying means for specifying a line to be monitored from among the lines, A plurality of selecting means for selecting a plurality of the data collected by the collecting means corresponding to each of the plurality of lines specified by the line specifying means; and a plurality of data on the lines collected by the collecting means selected by the plurality of selecting means. And a statistical processing means for performing statistical processing using the data. 2. A plurality of collecting means for collecting predetermined data transmitted on each line corresponding to each of the plurality of lines, and a parameter storage for storing an amount of processing the collected data as a predetermined parameter. Means, a line designating means for designating a line to be monitored from the lines, and a line collected by the collecting means corresponding to each of the plurality of lines designated by the line designating means from the collecting means. A plurality of data selection means for notifying the occurrence of an overflow to the outside when the sum of the data processing amounts on the plurality of lines designated by the line designation means exceeds the parameters stored in the parameter storage means; Means, stored in the parameter storage means collected by the collection means selected by the plurality of selection means. Collected line data collection apparatus characterized by comprising a statistical processing means for performing statistical processing using only the data amount of processing data that. 3. A plurality of collecting means for collecting predetermined data transmitted on each line corresponding to each of the plurality of lines, and a parameter storage for storing an amount of processing the collected data as a predetermined parameter. Means, collected data amount storage means for storing a predetermined amount of collected data from each line corresponding to each of the collection means, and line designation means for specifying a line to be monitored from among the lines Selecting a plurality of data on the line collected by the collecting means corresponding to each of the plurality of lines specified by the line specifying means from the collecting means, and corresponding to the plurality of lines specified by the line specifying means. The sum total of the collected data amount of each line stored in the collected data amount storage means is the parameter stored in the parameter storage means. A plurality of selecting means for notifying the occurrence of an overflow to the outside when the data is collected, and an amount corresponding to an amount of processing the collected data stored in the parameter storage means collected by the collecting means selected by the plurality of selecting means. A line data collection device comprising: a statistical processing means for performing statistical processing using data. 4. The line data collection device according to claim 2, wherein the data processing amount or the collected data amount is based on a maximum number of packets processed per unit time. 5. The line data collection device according to claim 2, wherein the data processing amount or the collected data amount is based on an average number of packets processed per unit time.