JPS5944151A - Method for controlling exchange - Google Patents

Abstract

PURPOSE:To improve the function of a switching network, by collectively controlling information such as traffic state and exchanging state. CONSTITUTION:A packet exchange PS3 executes a fault test periodically and stores the tested result in a fualt testing device 213. An integrated station controlling device DTE20 inputs required data in an information requesting device 210 and sends a CR packet from an information request reception controlling device 200 to an exchange PS1 as a calling request. The exchange PS1 detects the incoming to a station controlling device DTE23 by the CR packet, and connects a transmission line T13 to the exchange PS3 to send the CR packet. Receiving the CR packet, the exchange PS3 detects the incoming to the self-station itself and sends a CR packet for the incoming information to the specified DTE23. Subsequently, the prescribed packet is transmitted/received in accordance with the packet exchanging means and an information reception processor 220 and a fault testing device 213 are directly connected, so that the exchange and processing of the information are executed between both devices in the prescribed controlling method.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a switching center management system, and more particularly to a switching center management system for dealing with failures and traffic congestion in each switching center in a packet switching network.

In the conventional switching center management system μ, packet switching network, the management method is limited to each switching center, so it is not possible to fully grasp the status of other switching centers online. In this system, a transmission line for management is provided separately from a transmission line for communication, and centralized management is performed by a single monitoring and control unit installed at each switching center. Exchange of the former 1ijl
c In a limited management method, even if an available transmission path is selected as a detour, if the transmission path selected by the destination switching center is faulty or all lines are in use, this call is useless. I have to find a detour. Also, is the latter centralized management effective use of dedicated transmission lines? 11-The need to measure arises.

Next, the switching center confirmation system in the conventional putty 5 switching network will be explained with reference to flow 1 diagram showing this -m growth 1.Packet switching center Psi,)'S3r
Transmission line 'l'12. TI3. T23 connects to Mt. 144 2, each day! 9mX ftL) TEL, D
TE2*DTE3. WWifA connection parts 101, 102
．． 103. Fault testing device 1]l.

i12.113 and traffic, if reporting device 12J.

122.123 is accommodated. Therefore, each exchange (r
Yu disability inspection JtM1111.112.113 and Torahi,
ri1 positive information management device 121, 122, 12: (nyodde,
How is your station? I can understand y, but all the other stations have movement F'l
The file is not created in 1 so that it can be managed through 'J'. Therefore, ν11, the data terminal device υ'I'
Suppose that E1 transfers the data terminal υ'It' E2 hetator, even if the route from the switching center PSI to the switching unit J'S2 via the transmission line 'r12 takes priority, the transmission line T
12 are all in use on the same line, a detour path passing through the transmission line T13 is selected. However, episode II-? When the request arrived at switching station PS3 via transmission line 1 and 13, the transmission line T23 to the other switching station [2] S2 had a problem, or i' was all in use and the 11th transmission line could not be used. Useless call request operations to search for free lines often occur.

Next, this operation will be explained with reference to Figure 2 showing the signal sequence number i of packet communication. 1. In FIG. 1, when the data terminal device D'I''E1 makes an outgoing request and activates the traditionally accommodated packet switching station PSl, the CR packet of the call, vl, is sent. This CR packet causes this call to be packet exchanged.
2 data end floor soto 1) Knowing that it is TE2 Susumin,
Two transmission lines TI are selected for exchange P82, but when this L is in use, transmission line 'r13 is selected as a detour route.
．． The father switching station PS switching unit selects the transmission line T231r and attempts to connect it to the switching NPS2. CR of the call when this route is formed
The packet is sent from the switching station PS1 via the relay switching station PSa to the destination switching station PS2, where it is sent to the call-side CN.
Bucket) L/C converted and data terminal equipment# I)'L
' Reach E2. When the data terminal device DTE2 is ready to receive a call, it returns a CA packet with the receiving angle of the call.
Is this the replacement part PS2? It is transferred as a CC packet of the subsequent completion unit to the data terminal #DTE1 via the switching stations PS3 and PS1 on the originating side. Switching station PS3 serving as a relay station
When the connection to the transmission line T23 is impossible, if the call is received correctly, a CI message is sent with a disconnection instruction on the condition that the call cannot be set up. In response to this, the switching station PSlμ of the calling station returns a CF packet confirming disconnection and begins searching for another route.

As explained above, in the conventional exchange management system, it is limited to each exchange S forming the packet switching network.
Switching network ff: Accurately grasp the track status of all the trunk lines that make up the network, the operating status of the switching equipment, etc. at a single station,
It is difficult to efficiently manage a switching network, and it is uneconomical to provide a dedicated transmission line for management.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned drawbacks and to provide a switching center management system that improves the efficiency of switching line functions by centrally managing information such as traffic, traffic status, and switching operation status.

The switching center management method according to the present invention detects a fault in the own switching center in at least one of the packet switching centers in a packet switching network in which a number of packet switching centers are connected by communication transmission lines. A failure detection device for detecting a failure, a traffic management device including traffic information and logic for managing traffic on communication transmission lines related to the own station, and at least one of the following: Yes, the previous 6 capital management≠l
, an information request device for requesting desired information sound by specifying , and +
jiJ has a central control device that reads TFF information from the station blind system, processes it into a desired format, and embeds it. The communication terminal is connected to the data terminal device housed in the packet switching center via the communication transmission line according to the operation procedures for permanent call setup, call release, and call acceptance/redundancy disablement. It is characterized by

Next, the present invention will be explained with reference to FIGS. 3 and 4. FIG. 3 is a block diagram showing an embodiment of the exchange management system of the present invention, and FIG. In Figure 3, which is a counter chart,
The same component 1c as the conventional method has the same symbol f as in FIG. 1;
”, and the information request reception control device 20 in FIG.
0. ? W report requesting device 21o and information reception processing device 2
L) TE 20 is added, and the functions of the conventional fault testing device, traffic report management device, and management device connection section are expanded. Information management device 221゜222.223 and management information side? Al! ? [201,2
02.

203 as well as general data terminal equipment DTEI, DTE2 . S management device with packet communication function similar to DTE3 1) TE21, 1) TE 22
.

A DTE 23 is provided. Information request reception control device m:
200 generates and receives a transmission message r/'i for the packet switching center Ps11c to create various packets in order to perform call transfer and release in the same way as the data terminal device DTE1, but the information requesting device 21o1 does not send the data but accepts the data. The information reception processing device 220 controls the processing.

The information requesting device 210 is a data transmitting device, and the information reception processing device 220 is a data receiving device, and together with the above-mentioned information request reception control device 200, forms a data terminal device for centralized management.□tFV report reception processing Device 220 not only receives and displays all data, but also performs any necessary processing of that data. Father, respective management of each packet switching center P S Changing station J equipment vertical 201, 202, 20
3 is the respective data terminal equipment, DTE2, for establishing and releasing calls.

1) It creates and sends or receives various packets at the same time as TE3, and controls the data information to be sent and received by the fault inspection devices 211, 212, 213 and the traffic alert management devices 221, 222, 223. Fault inspection device 211, 2
12° 213 and traffic information management devices 221, 22
2゜223 are management information control devices 201 and 20, respectively.
2.

203 to form a combined data terminal and are also connected respectively to the packet switching stations Psi, PS2 . As a result of inspecting each function obtained from the PS3, failure status and traffic information are sent out upon request from the information requesting device 210, and furthermore, in abnormal or predetermined situations, the information receiving processing device 220 makes a call itself.
Send this information to.

First, the majesty test management using the exchange management system of invention X will be explained with reference to FIGS. 3 and 4. The results of periodically inspecting the packet switching center PS3 are stored in the failure inspection device 5213. Centralized control device 1) TE20
When requesting the input of the test results, input the desired data i to the information requesting device 210#C.
The tilJ value I device 200 sends a CR packet to the exchange Ps1 as a call originator. The exchange qpsi recognizes this CR packet as an incoming call to the engineering device D'l'E2B, connects the transmission line T13Th to the exchange 14PS3, and sends the entire CR packet. The switching station PS3, which also received this cf packet, is aware of the arrival of the call and sends it to the nearest station, DTE.
23, a CN packet notifying the incoming call is sent. The station management device DTE23 prepares to transmit the desired data according to the instruction information included in the CN packet, and also sends an incoming call acceptance OCACC packet. At this time, the central management device 1) TE20 and the station management device DTE23 are directly connected and directly send and receive data (information), so each exchange Ps
i.

The PS3 monitors this communication transmission path and detects, for example, the signals necessary for call setup and office broadcasting as shown in Figure 4.
Convert it into a packet and send it to switching station PS1
1 sends this CC packet to the central management device DTE20. The CC packet received by the central control device υ'Il'E20 is sent to
The information is sent to the processing device 220 and made to make predetermined reception preparations. After this, the information receiving i=J processing device 220 and the fault inspection device @
There is a direct connection with f13.

Therefore, the exchange and processing of the tn information is executed from the VC, which is the most effective method of this management method, in relation to the signaling method of packet exchange. Although the data transfer direction in FIG. 4 is shown as one direction, it is possible to transfer the data from either direction.
If the same data information is important, it may be included in the CIL and CN packets or the 1dcA and CC packets and transferred. T? The r-report request reception control device 200 includes a fault inspection device 2.
Information reception desk 8 that the 1h@transfer from 13 has been completed! It is informed by device 220, and a CQ packet is sent to PS3 via switch PS1 along with an old request. Exchange QPS3
is this CQ bag) %-cut tW (7) CI/< month,
It is sent to the management fire information control device 203 of the Miyako Riso DTE 23, and upon receiving the disconnection confirmation CF packet, the communication with the @Ei Riso Katsu'I'' F23 is fully released. Exchange U receives CQ packet from management device DTE20
PS1 and P83 are respectively CF packets [-
Return central control device t) TE 20 and switching center 1) Sl
, releases the connection of switching center PS3. The release of the call started with the transmission of CQ packets and ts from the central management device IJTE20 in FIG.
23 to exchange the recovery request CQ packet, and P via QPS3.
It is also possible to adopt a method in which the exchange PS1 sends a disconnection instruction (CI bucket) fr- to the central management device DTE20 to S1. In addition, the station management device DTE23's side damage inspection device W213
receives a notification when there is a failure in the directly connected exchange PS3 and knows the situation, so it immediately sends the originating CI (bucket) via the exchange INPS3, and sends the incoming CNN from the exchange PSIVc to the central management device DTE20. The information reception processing device 220 is activated by transmitting all the packets, and predetermined processing ffV- (for example, viewing notification, etc.) is performed. In this case, the transmission in FIG.

The direction of reception is reversed.Next, the management of traffic information by the exchange management system of the present invention will be explained. For example, the truck information management device 2
23Vi conversion station PS3 and its transmission lines 'v13 and T23
It constantly receives track information from the conversion station PS3.

This traffic t+V information is transferred in the same procedure as the inspection information at the request of the centralized control embedded RDT=20.The information required by the central control device DTE20 is the C
The management information control device 203 of the phrase management device DTE 23 that is requested and included in the IL packet and the CN packet and receives the incoming call.
The fault inspection 4f [213 or traffic information management device 223] is selected. When abnormal traffic occurs, the traffic information management device 223 notifies the management information control device 203 and sends the call's CR bucket)k exchange IMP.
s Transmit 3Vc.

In this way, the call setup and call release from the VC station management device DTE23 are performed by switching left and right according to the procedure shown in Fig. 4, as in the case of the failure described above. In this way, the central management device and the station management device are As with data terminal equipment, there are settings for sending ay-t to the switching center, and for incoming calls from the switching center, and there are also operation procedures for call release and calls that cannot be accepted or set.・Switching center management. In order to do this, there is no need for a dedicated transmission line for management, and the communication transmission line can be utilized along with general calls.

Father's parsimony's concentrated g cape at about 1C can be put to practical use.

Also, since you can make a call to the central control device or the metropolitan control device from either side and get the 100 reports from the other device, the central control device collects the information from each station and sends it to you. Comprehensive information on exchanges that have been processed is requested from the station management equipment and used for exchange operations at each station.
2) A switching network is used, which enables highly efficient switching operation and transmission path selection.

The fruit above 5. For example, F′! 1. Rit
I was able to measure only RF information management, but what about information transfer? ′
Other f! that can be grasped on a per-station basis. Frequent management information that requires continuous management can also be included.

The station management device 1 and the central management device 1't mJ's exchange section are operated independently, but the various control circuits are terminal and terminal pseudo circuits built into the exchange station,
It is also possible to obtain and control each S information within the exchange through the common path of the exchange.

As explained above, according to the present invention, it is possible to centrally manage at least one station by using a communication transmission line in the Nokukerato switching network, and it is possible to improve the efficiency of the switching network function. It will be done.

[Brief explanation of drawings]

Figure 1 shows an example of a switching center management system in a conventional packet conversion network. Figure 2 is a signal sequence chart showing an example of the packet transfer procedure in Figure 1.
- Fig. 3 is a block diagram of an embodiment of the switching center management system of the present invention, and Fig. 4 is a signal sequence chart showing an example of the packet transfer procedure in Fig. 3. 200... Information request reception control device, 201,
202゜203... Management information control device, 210
°°°・・・Information request device, 211, 212, 213・
... Fault inspection device 220 ... Qi0 reception processing device, 221, 222.223 ... Traffic information management device, DTE20 ... Central management device, DTE21 ．． DTE22. DTE23°゛°°° Station management device - PSl, PS2. PS3...Bucket exchange, T12°T13. T23...Transmission line. Agent Patent Attorney Koimori Uchihara 7 Figure 4

Claims (1)

[Claims] In a packet switching network in which a plurality of packet switching stations are connected by a communication transmission line, a failure detection device for detecting a failure in the own exchange in at least one of the packet switching stations, and communication related to the white area. A station management device including a traffic information requesting device for managing traffic information on a transmission path, and a fi
An information requesting device which is provided at least at one of the central exchanges and which specifies the station management device and requests desired information; and an information requesting device which receives information from the station management device;
It is equipped with a central management device including an information reception processing device that processes and manages the information in the desired format, and these station management devices and central management devices have the same type of data terminal equipment as the data terminal equipment housed in the rd) d-bucket switching center. 5C A switching center management system characterized in that the communication is connected via the W river transmission line according to the operational order of setting, call release, and call reception f=1 impossible/setting impossible.