JPH0723104A - Management system for multi-medium composite exchange - Google Patents

Abstract

PURPOSE:To relieve the load of an exchange by providing an exchange number cross reference table retrieving a representative telephone number of the exchange and a means giving/receiving a physical address of a LAN terminal equipment accommodated in each exchange between the exchanges. CONSTITUTION:A packet converter 3 converts a LAN packet into LAN packet data and sends the converted data to an ISD network 13 through a channel system exchange 6. Other IVDLAN composite exchange 1 receiving the LAN packet data through the network 13 sends LAN packet data to the converter 3 through the exchange 6. The exchange 3 receiving the data converts the LAN packet data into a LAN packet and sends the converted packet to a packet bus 4 and informs a sender physical address of the LAN packet to a central processing unit T. The unit 7 receiving the notice updates the exchange number cross reference table stored in a storage device 8. Then the LAN packet sent to the bus 4 is received by a line accommodation device 2 and sent to a LAN terminal equipment 11 being a destination through a terminal adaptor 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a LAN packet, a voice signal, etc., which are multiplexed and accommodated on the same line.
The present invention relates to a management system of a multimedia compound exchange that provides a LAN packet switching service based on an address and a circuit switching service based on a telephone number.

[0002]

2. Description of the Related Art In the prior art, a router is generally used for routing LAN packets. Router
It manages a MAC address, which is a physical address of a LAN terminal, and an IP address, which is a network address, and routes LAN packets by the network address. Further, the existing exchange does not manage the LAN address, and although the LAN terminal and the telephone are concentrated in one device, the two exchange systems have to be managed separately. It should be noted that Japanese Patent Application Laid-Open No. 4-3262 discloses a method in which identification information of a terminal connected to a LAN is added to a subaddress of ISDN or user information for connection.
No. 26, "ISDN and LAN connection system", and JP-A No. 2-13198, "ISDN sub-address processing system in PBX".

[0003]

In order to route a LAN packet, it is necessary to manage the physical address and network address of the LAN with a switch. In addition, since the physical address and network address of a LAN terminal have many digits, and most LAN users are not aware of the physical address and network address, in order to provide easy-to-understand management information to users and maintenance personnel. Is
It was necessary for the exchange to have a correspondence table of physical addresses or network addresses and terminal names. However, such management of physical addresses and network addresses and management of the correspondence table impose a burden on the exchange.

The present invention has been made in view of the above points,
The purpose of this is to provide a multimedia composite switch that accommodates LAN packets and voice signals multiplexed on the same line and provides LAN packet switching service based on LAN addresses and circuit switching service based on telephone numbers. In order to realize the address management method, a LAN packet is routed without using a router. Another object of the present invention is that L
An object of the present invention is to realize a management system of a compound exchange capable of realizing additional service functions such as billing and call restriction for AN communication.

[0005]

In order to achieve the above-mentioned object, in the present invention, the L address is not managed in the network address.
In order to perform the AN packet routing, the exchange number correspondence table that retrieves the representative telephone number of the exchange that accommodates this from the physical address of the LAN terminal that is accommodated in another exchange, and the exchange number correspondence table that is stored in each exchange A means for exchanging the physical address of the existing LAN terminal between the exchanges is provided. Further, in order to avoid the management of the above-mentioned terminal name correspondence table, the exchange is provided with a line number correspondence table that searches for a line number from the physical address of the LAN terminal.

[0006]

By using the line number correspondence table and the exchange number correspondence table, the exchange searches for which exchange the LAN terminal of the transmission destination is accommodated, and when it is accommodated in another exchange, It is possible to obtain the representative telephone number of the exchange containing the LAN terminal from the physical address of the LAN terminal and make a call to the exchange containing the destination LAN terminal. Also, the exchange on the receiving side transmits the LAN packet to the corresponding LAN terminal. In addition, the exchange uses the track number correspondence table above,
The line number is searched from the physical address of the LAN terminal in the own exchange, and the line number-telephone number correspondence table is provided. Therefore, by using this existing line number-telephone number correspondence table, The telephone number can be obtained from the LAN terminal address. Therefore, since the exchange can check service information such as billing and call restriction for the telephone number from the telephone number, these services can be applied to LAN communication.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a block diagram showing a schematic configuration of a compound exchange system according to this embodiment. In this embodiment, I
LAN standardized by the EEE802.9 committee
It is an example of application to an IVDLAN system in which ISDN and ISDN are integrated by an existing telephone line.

In the system of this embodiment, the terminal adapter 1
0 accommodates the LAN terminal 11 and the ISDN terminal 12, and the LAN packet and the ISDN channel are IEEE80.
Converted to the 2.9 interface and using the same telephone line 9, the IVDLAN composite exchange 1 (hereinafter, IVDLAN1
(Referred to as “)” and is transmitted after being multiplexed. The line accommodation device 2 uses the IEEE80 transmitted from the telephone line 9.
2.9 Interface is restored to LAN packet and ISDN channel. L restored by the line accommodation device 2
The AN packet is exchanged by the packet bus 4, and the ISDN channel is transmitted to the speech path system switching device 6 through the speech path system 5.
It is exchanged with another ISDN terminal 12 accommodated in the ALN 1 or the ISDN network 13.

The line accommodating apparatus 2 restores the IEEE802.9 interface to a LAN packet and an ISDN channel, and the physical address of the source of the LAN packet transmitted from the terminal adapter 10 (LAN terminal) accommodated in its own IVDALN1. To the central processing unit 7, and the central processing unit 7 stores in the storage unit 8 as a line number correspondence table in which the transmission source physical address of the LAN packet is associated with the line number.

The packet conversion device 3 also converts LAN packet data transmitted from another IVD LAN through the ISDN network 13 into a LAN packet, and the other IVDL.
LAN sent from LAN terminal housed in AN
The physical source address of the packet is notified to the central processing unit 7. The central processing unit 7 notified of the source physical address of the LAN packet from the other IVD LAN sends this address to another IVDLA to which the LAN packet is transmitted.
N ISDN representative telephone number (IVD in ISDN network
It is stored in the storage device 8 as an exchange number correspondence table associated with a representative telephone number of the LAN).

In the present embodiment, the central processing unit 7 also sends the physical address of the LAN terminal housed in its own IVDLAN to another IVDLAN periodically or at an unspecified predetermined time. . As a result, the IVDLAN that has received the physical address of the LAN terminal updates the exchange number correspondence table of the storage device in its own IVDLAN based on this received content.

The packet converter 3 which receives the LAN packet flowing through the packet bus 4 notifies the central processing unit 7 of the physical address of the destination of the LAN packet, and the central processing unit 7 which receives the address stores it in the storage unit 8. By using the line number correspondence table and the exchange number correspondence table, the destination physical address of the LAN packet received by the packet conversion device 3 is the address of the LAN terminal accommodated in the own IVDLAN or another IVDLAN. LA being housed
Judge whether it is the address of N terminal. Here, when the destination physical address of the LAN packet received by the packet conversion device 3 is the address of the LAN terminal 11 accommodated in its own IVDLAN 1, the central processing device 7 informs the packet conversion device 3 of the received packet. The discard is instructed, and the LAN packet is discarded. In addition, the destination physical address of the LAN packet received by the packet conversion device 3 is the other IVDL.
In the case of the address of the LAN terminal accommodated in AN,
Search the ISDN representative telephone number of the IVD LAN accommodating the destination LAN terminal from the exchange number correspondence table,
IVDLA accommodating the destination LAN terminal 11
It makes a call to N and communicates LAN packets.

FIG. 2 shows the flow of the LAN packet of this embodiment. The LAN packet transmitted from the LAN terminal 11 is transmitted to the line accommodation device 2 through the terminal adapter 10, and is transmitted from the line accommodation device 2 to the packet bus 4.
Upon receiving the LAN packet from the packet bus 4, the packet conversion device 3 notifies the central processing unit 7 of the destination physical address of the received LAN packet. Receiving the destination physical address of the LAN packet, the central processing unit 7 associates the physical address of the LAN terminal in its own IVDLAN stored in the storage device 8 with the line number.
4 and an exchange number correspondence table 15 in which physical addresses of LAN terminals accommodated in other IVD LANs are associated with ISDN representative telephone numbers of other IVD LANs.
LA that determines the transmission route of N packets and the physical address of the destination LAN terminal is accommodated in another IVD LAN
In the case of N terminals, the ISDN network 13 is used to set a path to another IVD LAN.

Here, the packet conversion device 3 converts the LAN packet into LAN packet data and sends it to the ISDN network 13 through the communication path switching device 6. Another IV that has received the LAN packet data through the ISDN network 13.
The DLAN 1 transmits LAN packet data to the packet conversion device 3 through the communication path switching device 6. Upon receiving the LAN packet data, the packet switching device 3
The packet data is converted into a LAN packet and sent to the packet bus 4, and at the same time, the source physical address of the LAN packet is notified to the central processing unit 7. The central processing unit 7 having received the source physical address of the LAN packet updates the exchange number correspondence table 15 stored in the storage unit 8.
Then, the LAN packet transmitted to the packet bus 4 is received by the line accommodation device 2 and transmitted to the destination LAN terminal 11 through the terminal adapter 10.

FIG. 3 is a line number correspondence table 1 according to this embodiment.
4 shows the procedure for making. From the LAN terminal 11 to the telephone line 9
The line accommodating apparatus 2 that has received the LAN packet 16 through the
Is sent to the central processing unit 7 and the packet bus 4
The LAN packet 16 is sent to the. LAN packet 16
Central processing unit 7 which received the source physical address SA of
Is a line number correspondence table 1 in which all line numbers accommodated in the own IVD LAN 1 are registered in the storage device 8 in advance.
The source physical address SA of the LAN packet 16 is registered in the portion of No. 4 corresponding to the line number L1 accommodated in the line accommodation device 2 that has notified the address.

FIG. 4 shows a procedure for creating the exchange number correspondence table 15 according to this embodiment. From other IVD LAN, ISDN
Upon receiving the LAN packet 16 via the network 13, the packet converter 3 notifies the central processing unit 7 of the source physical address SA of the LAN packet 16 and sends the LAN packet 16 to the packet bus 4. The central processing unit 7, which has received the source physical address SA of the LAN packet 16, has registered in the storage unit 8 in advance ISDN representative telephone numbers of all other IVD LANs connected via the ISDN network 13. L in the exchange number correspondence table 15
Other IVD LAN IS that has sent AN packet 16
LAN packet 1 in the part corresponding to DN telephone number I1
The source physical address SA of 6 is registered.

FIG. 5 is a line number correspondence table 1 according to this embodiment.
4 and an exchange number correspondence table 15 show an example of a LAN packet routing procedure. The packet conversion device 3, which has received the LAN packet 16 from the LAN terminal through the telephone line 9 having the line number L1, the line accommodation device 2, and the packet bus 4, sends the destination physical address A4 of the LAN packet 16 to the central processing unit 7. To notify. This allows
The central processing unit 7, which has received the destination physical address A4 of the LAN packet 16, receives the line number correspondence table 1 in the storage unit 8.
4 and the exchange number correspondence table 15 are searched. In the example shown in FIG. 5, the destination physical address A4 of the LAN packet 16 is I of another IVDLAN in the exchange number correspondence table 15.
It matches the LAN address corresponding to the SDN representative telephone number I2. In this case, the central processing unit 7 sets a path between the ISDN telephone number I2 and another IVDLAN, and the LAN packet 16 received by the packet conversion device 3 is converted into LAN packet data by the packet conversion device 3.
The data is transmitted to the IVD LAN other than the ISDN telephone number I2 via the communication path switching device 6 and the ISDN network 13. If the destination physical address of the LAN packet 16 matches the LAN address of the line number correspondence table 14 or does not match either of the line number correspondence table 14 and the exchange number correspondence table 15, the The LAN packet 16 received by the packet conversion device 3, which is regarded as the LAN address in the IVDLAN or the illegal LAN address, is discarded.

Here, when LAN packet data is transmitted from one IVDLAN to another IVDLAN using a public line, the charge of the public line charged to the transmission source LAN terminal is compared with that of a pair using the same telephone line. ISDN has become
If the terminal fee is charged, both the billing party and the billing party can manage the public line usage fee collectively, which is convenient in terms of service. Here, as described above, the IVDLAN has the line number-telephone number correspondence table in which the line number of each terminal directly managed by the own IVDLAN is associated with the telephone number (telephone number of the ISDN terminal). -Using the telephone number correspondence table and the line number correspondence table (correspondence table of line numbers and physical addresses of LAN terminals), an IS easily paired with the LAN terminal of the transmission source
The telephone number of the DN terminal can be specified. Therefore, the source L
It is possible to easily store and manage the time (fee) when the AN terminal uses the public line as the usage fee for the ISDN terminal paired with the LAN terminal which is the source.

Further, as described above, the IVDLAN can specify the telephone number of the ISDN terminal paired with the source LAN terminal, so that the ISDN terminal paired with the source LAN terminal is set in advance. It is possible to easily retrieve service information such as billing and transmission restriction from a predetermined storage area of the storage device. Therefore, when transmitting from the LAN terminal of the transmission source, the service for the ISDN terminal paired with the LAN terminal can be applied to the LAN communication. By doing so, it is possible to restrict access destinations in the LAN communication as well as the service to the ISDN terminal, which is convenient for the user.

[0020]

As described above, according to the present invention, a LAN packet and a voice signal are multiplexed and accommodated in the same line, and a LAN packet switching service based on a LAN address and a circuit switching based on a telephone number. In a multimedia complex switch that provides services, LAN packets can be routed between a plurality of switches without using an external router and by managing physical addresses without managing network addresses. It is possible to significantly reduce the burden on the user. It is also possible to apply services such as billing and transmission restriction when using a public line network to LAN communication.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a schematic configuration of a compound exchange system according to an embodiment of the present invention.

FIG. 2 shows L between IVD LANs according to an embodiment of the present invention.
It is explanatory drawing which shows the flow of AN packet.

FIG. 3 is an explanatory diagram showing a procedure for creating a line number correspondence table according to an embodiment of the present invention.

FIG. 4 is an explanatory diagram showing a procedure for creating an exchange number correspondence table according to an embodiment of the present invention.

FIG. 5 is an explanatory diagram showing a routing procedure of a LAN packet using a line number correspondence table and a switch number correspondence table according to an embodiment of the present invention.

[Explanation of symbols]

 1 IVDLAN 2 line accommodation device 3 packet conversion device 4 packet bus 5 speech path 6 speech path system switching device 7 central processing unit 8 storage device 9 telephone line 10 terminal adapter 11 LAN terminal 12 ISDN terminal 13 ISDN network 14 line number correspondence table 15 Switch number correspondence table 16 LAN packet

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Kenji Hiraiwa Inventor Kenji Hiraiwa 216 Totsuka-cho, Totsuka-ku, Yokohama, Kanagawa Incorporated company, Hitachi, Ltd. Information and Communication Division (72) Inventor Katsuyuki Miyazaki 216 Totsuka-cho, Totsuka-ku, Yokohama-shi, Kanagawa Incorporated company Hitachi Ltd., Information & Communication Division (72) Inventor Takashi Kajiyama 6-81 Onoue-cho, Naka-ku, Yokohama-shi Kanagawa Hitachi Software Engineering Co., Ltd.

Claims (3)

[Claims] 1. A management system for a multimedia composite exchange in which a LAN and an exchange are integrated, wherein communication channels having first and second terminal address systems are multiplexed and accommodated in the same line. The communication channels having the second terminal address system are not separately exchanged based on the respective terminal address systems, and each multimedia compound exchange has the first terminal address stored in the multimedia compound exchange. First correspondence table of terminal addresses and line addresses of the system, exchange addresses of other multimedia complex exchanges other than the relevant multimedia complex exchange, and first terminal address system accommodated in the other multimedia complex exchanges A second correspondence table with the terminal addresses of, and the first and second correspondence tables, using the source side multimedia composite exchange. A management system for a multimedia compound exchange, wherein a communication channel of a first terminal address system of a device is routed to and connectable to a communication channel of a first terminal address system of another multimedia compound exchange. 2. The communication channel of the first terminal address system of the multimedia composite exchange of the transmission source side according to claim 1, wherein the communication channel of the first terminal address system of another multimedia composite exchange is a public line. When connected to a communication channel, a public line charge for the communication channel of the first terminal address system of the transmission source is charged to the communication channel of the second terminal address system accommodated in the same line. A management method for a multimedia compound exchange characterized by the above. 3. The first terminal of another multimedia compound exchange according to claim 1, wherein the communication channel of the first terminal address system of the multimedia compound exchange on the transmission side uses a public line or a dedicated line. When connected to the communication channel of the address system, the transmission restriction for the communication channel of the second terminal address system is applied to the communication channel of the first terminal address system accommodated in the same line and transmission is performed. A management system for multimedia compound exchanges, which is capable of restricting