JPH06112978A - Automatic packet monitoring system - Google Patents

Abstract

PURPOSE:To reduce a job time for troubleshooting of an illegal packet reception alarm caused aperiodically and to relieve a command application job of a maintenance personnel. CONSTITUTION:On the opportunity of reception of an illegal packet reception alarm from a packet exchange processing unit (CP) 30 by a network management equipment (NMS) 10, the equipment 10 allows a CPU 30 to execute packet monitoring of a line having a line number CN designated by the illegal packet reception alarm. Every time the NMS 10 receives the illegal packet reception alarm after the start of packet monitoring, the NMS 10 revises the count generated by the packet monitoring management table and discriminates whether or not the count exceeds a packet monitoring stop specified number and sends a packet monitoring stop request signal to the CP 30 together with a monitor number to the CP 30 when the number is exceeded to stop the packet monitoring.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic packet monitoring system in a packet network system including a plurality of packet switching processing devices and a network management device for centrally managing the packet switching processing devices.

[0002]

2. Description of the Related Art In a conventional packet network system, packet monitoring is performed only by a command input by a maintenance person, and automatic packet monitoring is not performed.

[0003]

In this conventional packet monitoring method, an illegal packet reception alarm, which the maintenance person does not know when to occur, is waiting for an illegal packet reception alarm that occurs irregularly during operation of the system. , The command was input to perform packet monitoring, or the command input was performed for long-term packet monitoring, and the large amount of monitoring data obtained was analyzed. There was a problem that it took a long time.

[0004]

An automatic packet monitoring system according to the present invention is an automatic packet monitoring system in a packet network system comprising a plurality of packet switching processing devices and a network management device for centrally managing the packet switching processing devices. The network management device monitors the occurrence of an illegal packet reception alarm, executes packet monitoring at the time the illegal packet reception alarm occurs, and when the number of alarm occurrences of the same line number exceeds a prescribed number, The feature is that packet monitoring is stopped.

Further, the network management device comprises a packet monitoring management table for storing the occurrence counter value of the illegal packet reception alarm and the packet monitoring number for each of the line numbers. The packet monitoring management table corresponds to each occurrence of the illegal packet reception alarm. The generation counter value of the line number to be updated is updated.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. 1 is a block diagram of a packet network system showing an embodiment of an automatic packet monitoring system of the present invention, FIG. 2A is a sequence chart for explaining the operation in FIG. 1, and FIG. 2B is a network management in FIG. It is a figure which shows an example of the packet monitoring management table which a device uses.

As shown in FIG. 1, the packet network system of this embodiment includes a plurality of packet switching devices (hereinafter CPs) 30, 40, 50 and a network management device (hereinafter NMS) for centrally managing the CPs 30, 40, 50. 10 and the NMS 10 is a maintenance console (hereinafter CS
L) 20 and has a packet monitoring management table shown in FIG. Also CP30
Is connected to a host computer (hereinafter HOST) 60.

Next, the operation of this embodiment will be described with reference to FIG. For example, when the CP 30 detects an illegal packet reception alarm, the illegal packet reception alarm a is sent to the NMS 10 together with the line number (CN) at which the alarm occurred. The NMS 10 notifies the CSL 20 of this as an autonomous message f. Next NMS10
Stores the line number (CN) included in the illegal packet reception alarm a in the packet monitoring management table, sends a packet monitoring start request signal b to the CP 30 to request packet monitoring start, and receives a packet monitoring start completion notification signal c. And an autonomous message g indicating the start of automatic packet monitoring are sent to CSL2.
Notify 0.

Each time the NMS 10 receives an illegal packet reception alarm a after starting packet monitoring, it notifies the CSL 20 as an autonomous message f, updates the generation counter value in the packet monitoring management table, and this counter value defines the packet monitoring stop rule. It is determined whether or not the number of times is exceeded, and when the number is exceeded, a packet monitoring stop request signal d is sent to the CP 30 together with the monitor number to request packet monitoring stop, and when a packet monitoring stop completion notification signal e is received from the CP 30, this line Packet monitoring is stopped and the autonomous message h indicating the monitoring data is notified to the CSL 20. The maintenance person outputs this monitored data from the CSL 20 and analyzes it.

[0010]

As described above, according to the present invention, upon occurrence of an illegal packet reception alarm on a certain line, packet monitoring of this line is automatically performed until the number of alarm occurrences reaches a specified number. Since the monitoring data is obtained, there is an effect that the maintenance person's command input work can be reduced and the failure cause investigation work time can be shortened.

[Brief description of drawings]

FIG. 1 is a block diagram of a packet network system showing an embodiment of an automatic packet monitoring system of the present invention.

2A is a sequence chart for explaining the operation in FIG. 1, and FIG. 2B is a diagram showing an example of a packet monitoring management table used by the network management device in FIG.

[Explanation of symbols]

 10 Network Management Device (NMS) 20 Maintenance Console (CSL) 30, 40, 50 Packet Switching Processor (CP) 60 Host Computer (HOST) CN Line Number a Illegal Packet Reception Alarm b Packet Monitoring Start Request Signal c Packet Monitoring Start Completed Notification signal d Packet monitoring stop request signal e Packet monitoring stop completion notification signal f, g, h Autonomous message

Claims (2)

[Claims] 1. An automatic packet monitoring method in a packet network system comprising a plurality of packet switching processing devices and a network management device for centrally managing the packet switching processing devices, wherein the network management device is an illegal packet reception alarm. The automatic packet monitoring is characterized in that the packet monitoring is performed when the illegal packet reception alarm is generated, and the packet monitoring is stopped when the number of alarm occurrences of the same line number exceeds a specified number. method. 2. The network management device comprises a packet monitoring management table storing the occurrence counter value of the illegal packet reception alarm and the packet monitoring number for each of the line numbers, and corresponds to each occurrence of the illegal packet reception alarm. The automatic packet monitoring method according to claim 1, wherein the generation counter value of the line number to be updated is updated.