JPH0446436A - Method for network management for packet exchange network management equipment - Google Patents

Abstract

PURPOSE:To continue management of a packet exchange located remote from a line fault location by setting a bypass network management path via a public telephone network in which a packet exchange is accommodated. CONSTITUTION:A public network automatic dial control means 13 dials a specific prescribed number for setting a bypass network management path. The specific number dial information is given to a non-protocol communication control means 14, from which the information is sent to a non-protocol PAD of a packet exchange 20 via a specific interface and a public telephone network 2. A non-protocol PAD 24 receiving the dial information for setting a bypass network management path accesses a station management means 21. When the station management means 21 is accessed via the non-protocol PAD 24 while the communication of a communication line 1 in its own network is interrupted, the communication control implemented through an X25 interface is replaced into the communication control of non-protocol interface. Thus, the operating state of a packet exchange 20-4 is monitored and controlled via a bypass network management path 8 set to a public telephone network 2.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a network management system for a packet-switched network.

[Conventional technology]

Conventionally, the network management method for this type of packet switching network has been to set up a network management path using an X25 interface on the communication line for data transfer, and to remotely monitor the normal operating status of the data transfer line and packet switch using a network management device. Was.

[Problem to be solved by the invention]

In the conventional network management method for packet switching networks described above, a network management path was set up on the communication line for data transfer and remotely monitored. Therefore, if a failure occurs in the communication line, the network management system There is a drawback that it is not possible to remotely monitor and control a packet switch located far from the faulty line, and it is not possible to monitor the network of the packet switch.

An object of the present invention is to set up a detour network management path via the public telephone network in which each packet switch is accommodated when a communication line within the own network used for network management of a packet switching network fails. The objective is to provide a network management method that allows continuous management.

[Means to solve the problem]

The network management method for a packet-switched network according to the present invention comprises: 1. A packet-switched network consisting of a packet switch that accommodates subscribers via a public network using a non-procedural packet assembly/disassembly function (hereinafter referred to as PAD); In a network management method for a packet-switched network comprising a network management device that monitors and controls a communication line from a remote location using a communication line for transferring data between exchanges, detecting a failure point of the line when the data transfer communication line fails; A special number assigned in advance is made to the packet switch located far from the line failure point, and a detour network management path is established between the packet switch and the network management device via the public telephone network using a non-procedural interface. It is characterized by setting.

2. X25 communication control means having an X25 interface for transmitting and receiving normal operation monitoring information of the packet switching network when the line is normal, and managing the normality of the packet switching network through the X25 communication control means, a network management means that detects the line failure and instructs the packet switch located far from the point of line failure to make a call; and a public network automatic dialer that dials a special number pre-assigned to the packet switch in response to instructions from the network management means. It is characterized by comprising a call control means, and a non-procedural communication control means for providing a non-procedural interface for transmitting the special number dialing information of the packet switching equipment sent by the public network automatic call control means via the public telephone network. shall be.

〔Example) Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention. FIG. 2 is a network configuration diagram showing one embodiment of the present invention.

FIG. 1 shows a network management means 11 that monitors the normal operating state of the packet network and the packet switch, an X25 communication control means 12 that controls the transmission and reception of data signals with the packet switch when the communication line in the own network is normal, and Public network automatic call control means 13 automatically calls via the public telephone network to a packet switch that cannot be monitored due to line failure of the communication line within the network; A network management device 10 consisting of a non-procedural communication control means 14 that sets a detour network management path through the network, a station management device 21 that monitors the normal operating state inside the packet switch, and a network management device 10 that operates when the line is normal. A packet switch 20 consisting of an X25 communication control means 22 that controls the transmission and reception of data signals, and a manual 1iPAD means 24 that sets up a detour network management path in the event of a line failure, and a network management device 10 and packet switch 2o are connected to Communication line 1 within the own network for sending and receiving
and a public telephone network 2 that sets up a detour network management path in the event of a network failure.

FIG. 2 shows the network management device 10, the packet switch 20-1.
20-2.20-3.20-4, PAD terminal 3, public telephone network 4, non-procedural terminal 5, data transfer communication line 1, subscriber line 2, and normal network management path 6 , a line failure point 7 , and a detour network management path 8 . Each packet switch 20 - 1 to 20 - 4 and a network management device 10 that manages them are subscribed to the public telephone network 4 .

Here, the setting of a detour network management path when the communication line 1 in the own network has a line failure at the failure point 7 will be explained. It is assumed that the packet switch 2o in FIG. 1 corresponds to the packet switch 20-4 in FIG.

The embedded network W1 uses the communication line 1 within its own network using the normal X25 communication procedure to set up a call for monitoring and control to the station management means of the packet switch 20, and constantly monitors the operating status of the packet switch. are doing. In this state, if a line failure occurs in the communication line 1 at the failure location 7 (see Figure 2), the network management means 11 of the network management device 10 detects the line failure and sends a message to the public network automatic call origination control means 13. Packet switch 2
Instructs to set up a detour network management path for 0-4. The public network automatic call control means 13 dials a predetermined special number for setting a detour network management path. This special number dial information is sent by the non-procedural communication control means 14 to the non-procedural PAD of the packet switch 20 via the public telephone network 2 through a predetermined interface. The non-procedural PAD 24 that has received the dial information for setting a detour network management path is the station management means 2.
Access 1. It is assumed that the current station management means 21 is given a special number as a subscriber in advance. When the station management means 21 is accessed via the non-procedural PAD 24 while communication on the communication line 1 within its own network is disconnected, it switches the communication control performed using the X25 interface to the communication control using the non-procedural interface. In this way, the operating state of the packet switch 20-4 is monitored and controlled via the detour network management path 8 (see FIG. 2) set on the public telephone network 2. When the failed line is restored, the normal network management path 6 (second
(see figure) and monitor and control.

〔Effect of the invention〕

As explained above, in the present invention, when a failure occurs in the communication line within the own network used for network management, a detour network management bus is set up via the public telephone network in which each packet switch is accommodated. This has the effect that it is possible to continue managing packet switching equipment located far away from the point of line failure.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention. FIG. 2 is a network configuration diagram showing an embodiment of the present invention. 1...Packet network, 2...Public telephone network, 3...P
AD procedure terminal, 4...Subscriber line, 5...Non-procedure terminal, 6...Normal network management path, 7...Line failure occurrence point, 8...Detour network management path, 10...・Network management device,
11...Network management means, 12.22...X25 communication control means, 13...Public network automatic call control means, 14...
- Non-procedural communication control means, 20.20-1 to 2o-4...
- Packet switch, 21... Station management means, 24... Rake*PAD.

Claims (1)

[Claims] 1. A packet switching network consisting of packet switching equipment that accommodates subscribers via a public network using a non-procedural packet assembly/disassembly function (hereinafter referred to as PAD), and data transfer between the packet switching equipment. In a network management method for a packet-switched network comprising a network management device that monitors and controls from a remote location using a communication line for data transfer, when a failure occurs in the data transfer communication line, the line failure point is detected, and A special number given in advance is called to the packet switch located in the packet switch, and a detour network management path is set between the packet switch and the network management device via the public telephone network using a non-procedural interface. A network management method for a packet-switched network. 2. X25 communication control means having an X25 interface for transmitting and receiving normal operation monitoring information of the packet switching network when the line is normal, and managing the normality of the packet switching network and preventing line failures through the X25 communication control means. network management means that detects the line failure and instructs the packet switch located far from the location to make a call; and a public network automatic caller that dials a special number pre-assigned to the packet switch in response to instructions from the network management means. It is characterized by comprising a call control means, and a non-procedural communication control means for providing a non-procedural interface for transmitting special number dialing information of the packet switching equipment sent by the public network automatic call control means via the public telephone network. A network management device for a packet-switched network.