JPH06350694A - Packet handler sharing controller - Google Patents

Abstract

PURPOSE:To efficiently use a packet handler. CONSTITUTION:When receiving the line fault/congestion occurrence report of a leased line from an X.75 leased line trunk 9, an ISDN line alternate control block 13 outputs an acquisition request to a packet handler resource management block 12. This block 12 acquires an idle packet handler 5 for alternate route based on registered information. The ISDN line alternate control block 13 sends control information to the packet handler 5 acquired for alternate route and selects an ISDN trunk 6 thereafter to send a call to the alternate destination to an ISDN network 100. When a response is sent from the alternate destination to the ISDN line alternate control block 13, this block 13 controls a switch 10 to connect the packet handler 5 for alternate route and the ISDN trunk 6 and reports alternate route generation to a packet subscriber circuit 8 and terminated the alternate route generation processing to a packet terminal 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packet handler sharing controller, and more particularly to an ISDN packet communication function and CC.
ITT Recommendation X. 25 or X. The present invention relates to a packet handler sharing control system of an exchange having an ISDN line bypass function of a leased line conforming to H.75.

[0002]

2. Description of the Related Art Conventionally, in this type of exchange, IS
Packet handler for DN packet communication and CCIT
Recommendation X.T. 25 or X. A packet handler for detouring the ISDN line of a dedicated line conforming to H.75 is prepared for each.

That is, when communication is performed by the ISDN packet communication function of the exchange, the ISDN terminal is connected to the ISDN network via the packet handler for ISDN packet communication.

Further, when communication is performed by the ISDN line bypass function of the exchange, in order to connect the packet terminal on the transmission side and the packet terminal on the reception side connected via the leased line via the ISDN network, A packet handler for detouring the ISDN line is used.

[0005]

In the above-mentioned conventional exchange, a plurality of packet handlers are set for ISDN packet communication and for ISDN line detour, respectively, and are used exclusively. Therefore, the packet handler can be efficiently used. There is a problem that it cannot be used.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems and provide a packet handler sharing controller capable of efficiently using a packet handler.

[0007]

A packet handler sharing controller according to the present invention is a packet handler sharing controller for an exchange which connects an ISDN terminal to an ISDN network and connects the packet terminal to a private line. To the ISDN network, and a plurality of packet handlers that connect the packet terminal to the ISDN network when the leased line fails, and the plurality of packet handlers that respond to a call from the ISDN terminal and a failure notification of the leased line. Means for capturing an empty packet handler from among the packet handlers, and means for connecting the captured packet handler to one of the ISDN terminal and the packet terminal,
And means for notifying the captured packet handler of control information corresponding to one of the ISDN terminal and the packet terminal connected.

[0008]

An embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of the ISDN packet communication function of one embodiment of the present invention. In the figure, when an ISDN packet communication control block (hereinafter referred to as a communication control block) 11 of an exchange 1 receives a call from an ISDN terminal 2 via an ISDN subscriber circuit 3, it sends a packet handler supplement request 101 to a packet handler resource management block. Output to 12 (hereinafter referred to as management block).

A packet handler that can be used by the exchange 1 is registered in advance in the management block 12, and the usage status of each registered packet handler is stored.
When the management block 12 receives the packet handler supplement request 101 from the communication control block 11, it determines whether or not there is a free packet handler based on the registered information.

When the management block 12 determines that there is a vacant packet handler, it captures the vacant packet handler 4 as the originating packet handler. The management block 12 uses the information of the source packet handler 4 and the information necessary for controlling the packet handler 4 and the like as a packet handler supplemental response 102 to the communication control block 1
Notify 1.

The communication control block 11 is a management block 12
The packet handler control information notification 103 is sent to the originating packet handler 4 captured by the management block 12 on the basis of the packet handler supplemental response 102 from.

At the same time, the communication control block 11 sends the packet handler supplemental response 10 from the management block 12.
Based on 2, the switch connection request 105 is output to the switch 10, and the switch 10 is controlled to connect the ISDN subscriber circuit 3 and the originating packet handler 4.

Next, the communication control block 11 has the switch 1
0 to ISDN subscriber circuit 3 and originating packet handler 4
When receiving the switch connection response 106 indicating the connection with, the receiving side ISDN trunk 6 is selected. The communication control block 11 uses the selected ISDN trunk 6 and ISDN network 10.
The incoming call is notified to the called ISDN terminal (not shown) via 0.

The communication control block 11 outputs a packet handler supplement request 101 to the management block 12 when a response is sent from the destination ISDN terminal. When the management block 12 receives the packet handler supplement request 101 from the communication control block 11, it determines whether or not there is a free packet handler based on the registered information.

When the management block 12 determines that there is a vacant packet handler, it captures the vacant packet handler 5 as the destination packet handler. The management block 12 uses the information of the destination packet handler 5 and the information necessary for controlling the packet handler 5 and the like as a packet handler supplemental response 102 to the communication control block 1
Notify 1.

The communication control block 11 is a management block 12
The packet handler control information notification 104 is sent to the destination packet handler 5 captured by the management block 12 based on the packet handler supplementary response 102 from.

At this time, the communication control block 11 outputs a switch connection request 105 to the switch 10 based on the packet handler supplementary response 102 from the management block 12, and controls the switch 10 to control the source packet handler 4 and the destination packet handler. Connect with the handler 5.

When the communication control block 11 receives from the switch 10 the switch connection response 106 indicating the connection between the source packet handler 4 and the destination packet handler 5, the ISD
The connection processing of N packet communication is ended.

FIG. 2 is a block diagram showing the configuration of the ISDN line bypass function of one embodiment of the present invention. In the figure, an exchange 1 is provided with a packet subscriber circuit 8 and an X.X. 75 leased line trunk 9 to connect the packet terminal 7 to the X.75 line. 75 dedicated line 11
Connected to 0.

The ISDN line bypass control block (hereinafter referred to as the bypass control block) 13 of the exchange 1 is an X.X. 75 leased line trunk 9 to X. When a line fault / congestion occurrence notification indicating the occurrence of a detour factor such as a fault or congestion of the 75 private line 110 is received, a packet handler supplement request 111 is output to the management block 12.

The management block 12 is a bypass control block 13
When the packet handler supplement request 111 is received from, it is determined whether or not there is a vacant packet handler based on the registered information.

When the management block 12 determines that there is a vacant packet handler, it captures the vacant packet handler 5 as a detour packet handler. The management block 12 notifies the bypass control block 13 of the information of the packet handler 5 for the detour and the information necessary for controlling the packet handler 5 and the like as a packet handler supplemental response 112.

The detour control block 13 is the management block 12
Based on the packet handler supplemental response 112 from
Then, the packet handler control information notification 114 is sent to.

At this time, the detour control block 13 outputs a switch connection request 115 to the switch 10 based on the packet handler supplementary response 112 from the management block 12, and controls the switch 10 to use the packet subscriber circuit 8 and the detour circuit. And the packet handler 5 of.

Next, the detour control block 13 uses the switch 1
When the switch connection response 116 indicating the connection between the packet subscriber circuit 8 and the detour packet handler 5 is received from 0, the ISDN trunk 6 is selected. The detour control block 13 selects the selected ISDN trunk 6 and ISDN network 10.
Call the detour via 0.

When the response is sent from the detour destination, the detour control block 13 sends a switch connection request 11 to the switch 10.
5 is output and the switch 10 is controlled to connect the packet handler 5 for the detour and the ISDN trunk 6.

When the detour control block 13 receives from the switch 10 the switch connection response 116 indicating the connection between the detour packet handler 5 and the ISDN trunk 6, the detour control block 13 outputs a detour generation notification 113 to the packet subscriber circuit 8. The detour generation process for the packet terminal 7 is terminated.

The exchange 1 according to one embodiment of the present invention comprises a switch 10, a communication control block 11, a management block 12 and a detour control block 13, and makes a call from the ISDN terminal 2 and an X.X. The processing operation described above is performed in response to the line failure / congestion occurrence notification from the 75 leased line trunk 9.

Further, in FIG. The case of connecting to the packet terminal of the other party using the H.75 dedicated line 110 is shown. X.75 leased line 110 instead of X.75. The above-described processing operation can be performed even when the 25 dedicated line is used.

As described above, when the ISDN packet communication function is used, the communication control block 11 and the management block 1
2 to supplement the packet handlers 4 and 5 as needed, and when the ISDN line bypass function is used, the management block 12 and the bypass control block 13 supplement the packet handler 5 as necessary to control the packet handlers 4 and 5. The packet handlers 4 and 5 by using the ISDN packet communication function and the I
It can be physically shared by the SDN line detour function.

Therefore, it is not necessary to prepare a dedicated packet handler for each of the ISDN packet communication function and the ISDN line bypass function as in the conventional case, so that the packet handler can be used economically and efficiently.

[0033]

As described above, according to the present invention, I
In an exchange that connects the SDN terminal to the ISDN network and the packet terminal to the leased line, the ISDN terminal is ISD
IS connected to the N network and the packet terminal IS when the leased line fails.
A vacant packet handler is captured from a plurality of packet handlers connected to the DN network according to a call from the ISDN terminal and a fault notification of the leased line, and the captured packet handler is selected from the ISDN terminal and the packet terminal. The packet handler can be efficiently used by connecting to the packet handler and notifying the captured packet handler of the control information corresponding to one of the ISDN terminal and the packet terminal connected.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an ISDN packet communication function according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of an ISDN line bypass function according to an embodiment of the present invention.

[Explanation of symbols]

 1 exchange 2 ISDN terminal 3 ISDN subscriber circuit 4,5 packet handler 6 ISDN trunk 7 packet terminal 8 packet subscriber circuit 9 X. 75 leased line trunk 10 switch 11 ISDN packet communication control block 12 packet handler resource management block 13 ISDN line detour control block 100 ISDN network 110 X. 75 dedicated line

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[Procedure amendment]

[Submission date] December 17, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Claims

[Correction method] Change

[Correction content]

[Claims]

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location H04M 3/22 Z 8426-5K H04Q 11/04

Claims (1)

[Claims] 1. A packet handler sharing controller of an exchange for connecting an ISDN terminal to an ISDN network and connecting a packet terminal to a leased line, wherein the ISDN terminal is connected to the IDN.
A plurality of packet handlers that connect to the SDN network and connect the packet terminal to the ISDN network when the leased line fails; and a plurality of packet handlers that respond to a call from the ISDN terminal and a failure notification of the leased line Means for capturing a vacant packet handler, means for connecting the captured packet handler to one of the ISDN terminal and the packet terminal, and one of the connected ISDN terminal and the packet terminal A packet handler shared control device, comprising means for notifying the captured packet handler of control information corresponding to one side.