JPH1051456A - Atmpvc network channel, setting system and its method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the need for generating SW control information at the start of use and sending the information to an SW control terminal equipment by setting a PVC channel between a sender ATM terminal equipment and a destination ATM terminal equipment automatically to an asynchronous transfer mode permanent vertical circuit(ATMPVC) network channel reservation automatic setting device. SOLUTION: A sender ATM terminal equipment name for data transmission, a destination ATM terminal equipment name receiving data, a use start time, a use end time and a required frequency band are entered to a reservation information storage section 12100 of an ATMPVC network channel reservation automatic setting equipment 10000 as reservation information to obtain available paths and SW control information is generated to control the ATM switch on the path and a PVC channel between the sender ATM terminal equipment and the destination ATM terminal equipment is set automatically. Thus, the system is provided with an ATM terminal equipment information management section 14000, an SW information management section 15000, an SW adjacent information management section 16000, a link information management section 17000 and a path retrieval section 13000 or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ATMPVC which searches for a path between ATM terminals connected to an ATMPVC network under conditions such as desired use time and band, and reserves resources such as a VPI value, a VCI value and a band. The present invention relates to a method and system for reserving a network line by controlling an ATM switch at the time of use without creating switch control information.
AT that allows the PVC line between the originating ATM terminal and the terminating ATM terminal to be used by setting the PVC between the M terminals
The present invention relates to an MPVC line amount automatic line setting system and a setting method.

[0002]

2. Description of the Related Art ATMPVC (Asynchronous)
s Transfer Mode Permanent
(Virtual Circuit) network, A
It is necessary to set the line by controlling the TM switch. In a conventional line setting system in an ATMPVC network, a line can be set from a remote place by sending switch control information to a switch control program operating on a switch control terminal connected to a switch. Note that SW
The control program is described in, for example, Masataka Ota, “Switch Setting Protocol,” The 5th JAIN Consortium General Meeting, Study Group Material (Jun. 1995). FIG. 22 is an overall configuration diagram of a conventional ATMPVC network line setting system. In FIG. 22, two ATMs
Terminals T11 and T12 and six ATM switches SW1 to S
W16 is interconnected via optical fibers L11 to L19. Note that P12-1 to P1 in the ATM switch
6-6 are port numbers of the switches 12 to 16, respectively. The port number of the ATM switch at the end of the optical fiber connected to the ATM switch is:
The port numbers of the ATM switches to which the optical fibers L11 to L19 are connected are shown. ATM switch SW1
SW control terminals CTL11 to CTL1
6 are connected by RS232C or Ethernet. Further, one ATMPVC network line setting device 20
000 and the SW control terminals CTL11 to CTL16 are connected to an existing communication network such as the Internet. The SW control terminals CTL11 to CTL16 have network addresses ctl11 to ctl16. And A
Of course, the configurations of the TM terminal, the ATM switch, and the SW control terminal are not limited to those in FIG.

FIG. 23 is a configuration diagram of an ATMPVC network line setting device in a conventional ATMPVC network line setting system. An ATMPVC network setting device 20000 includes an input unit 2110 for controlling input from a keyboard and a mouse.
0, an output unit 2120 for controlling output to a display or the like
0, SW control information transmitting unit 2 for transmitting switch control information
9000, a network interface unit 21300 for sending SW control information to a communication network, and their input unit 21100, output unit 21200, SW control information transmitting unit 29000, and network interface unit 2130
0 is controlled by a control unit 21000. The SW control information transmission unit 29000 includes a SW control information storage unit 29100 that stores the SW control information 29110.
The SW control information 29110 includes a SW control terminal address column 29111, a line holding time column 19112, a line band column 19113, an input port number column 29114 for inputting an ATM cell, and an input VPI (Vir) of an ATM cell to be input.
tual Pass Identification) value field 29115, input VCI (Virtual Circuit Id) of the ATM cell to be input
An entry value column 19116, an output port number column 29117 for outputting the ATM cell, an output VPI value column 29118 of the output ATM cell, and an output VCI value column 29119 of the output ATM cell.

FIG. 24 is a flowchart of a line setting process in the conventional ATMPVC network line setting system. The columns of the input unit, the control unit, the SW control information transmission unit, and the SW control terminal in FIG.
Input unit 21100, control unit 21000, SW control information transmission unit 29000, and SW control terminals CTL11 to CTL16 of ATMPVC network line setting device 20000
Is represented. First, when the line setting process is started (S1)
000), SW control information 2911 from the input unit 21100
0 SW control terminal address column 29111, line holding time column 29112, line band column 29113, input port number column 29114 for inputting ATM cells, input VPI value column for ATM cells 29115 to be input, A to be input
Column 29116 of input VCI value of TM cell, column 29117 of output port number for outputting ATM cell, AT to be output
Column 29118 of output VPI value of M cell, ATM to output
In the cell output VCI value column 29119, the SW control terminal address, the line holding time, the line band, the input port number for inputting the ATM cell, and the input VPI of the input ATM cell
Value, input VCI value of the input ATM cell, output port number for outputting the ATM cell, output V of the output ATM cell
The SW control information 29110 including the PI value and the output VCI value of the output ATM cell is input, and the input SW control information 29110 is stored in the SW control information storage unit 29100 (S1010). Next, the input unit 21100 requests the control unit 21000 to transmit the SW control information 29110 (S1020). The control unit 21000 receiving the SW control information transmission request changes the SW control information transmission unit 2900
It requests the transmission of the SW control information 29110 to 0 (S1030). Upon receiving the SW control information transmission request, the SW control information transmitting unit 29000 transmits the SW control information 29110 to the SW control terminal of the SW control terminal address (S1
040). Upon receiving the SW control information, the SW control terminal
The line is set according to the W control information, and the line is held for the line holding time (S1050). Thus, the line setting process ends (S1060).

[0005]

As described above, in the conventional ATMPVC network line setting device, each time a PVC line user uses a PVC line, SW control information is input.
It was necessary to create and transmit SW control information from the ATM MPVC network line setting device to the SW control terminal connected to the ATM switch. Therefore, in the conventional ATM PVC network line setting system, any ATM terminal (originating ATM)
In order to use a PVC line for data transmission from a terminal to another ATM terminal (final ATM terminal), there are the following necessary conditions. [Requirement 1] Departure ATM terminal / End ATM
It was necessary to find a route between terminals. [Requirement 2] Available resources (VPI value, V
CI value, band) is the range of AT connected to both ends of the link.
Since it may differ depending on the port of the M switch, it was necessary to determine the range of the available resources. [Requirement 3] For all links on the path between the originating ATM terminal and the ending ATM terminal, desired resources (VPI value, VC
It is necessary to select a route that can use the I value and the bandwidth. [Requirement 4] Create SW control information to be transmitted to all SW control terminals on the route between the originating ATM terminal and the terminating ATM terminal,
It was necessary to transmit the SW control information from the ATM PVC network line setting device to all the SW control terminals on the route. In order to satisfy the above requirements 1-4, there are the following problems, and solving them has been a problem. [Problem 1] In the above-mentioned requirement 1, if the network configuration of the ATM PVC network becomes complicated,
There is a problem that it is difficult to obtain a route between the M terminals. [Problem 2] In the above requirement 2, the resources (available VPI value, VCI value, band) on the link are the available resources (VPI value, VCI value, band) of the ports of the switches connected to both ends of the link. Must be compared, and if the network configuration of the ATMPVC network becomes complicated, there is a problem that it becomes difficult to obtain an available resource on the link. [Problem 3] In the above-described requirement 3, among all the routes between the ATM terminals, a route in which a desired resource (VPI value, VCI value, band) can be used between the use start time and the use end time is selected. There has been a problem that resources (VPI value, VCI value, band) cannot be reserved between the desired use start time and use end time. [Problem 4] In the above requirement 4, resources (VPI value, VC
Since the I value and the bandwidth cannot be reserved, there is a problem that the SW control information of all the SW control terminals on the route must be created according to the situation of the use start time. Therefore, an object of the present invention is to solve these conventional problems,
In order to determine the route of the originating ATM terminal / ending ATM terminal whose bandwidth can be used from the use start time to the use end time, the ATM switch is not required to generate SW control information for controlling the ATM switch on the route. An object of the present invention is to provide an ATMPVC network line setting system and method in which a PVC line between ATM terminals can be used.

[0006]

In order to achieve the above object, an ATMPVC network line setting system according to the present invention comprises:
TM terminal information management unit (14000 in FIG. 1), SW adjacent information management unit (16000), and SW information management unit (1500)
0), a link information management unit (17000), a reservation information management unit (12000), a route search unit (13000), a switching information management unit (18000), and a SW control reservation information management unit (19000). As a result, any ATM terminal desired by the user (originating ATM terminal) can be switched to another ATM terminal.
In order to send data to the TM terminal (final ATM terminal),
An originating AT that transmits data instead of creating SW control information and transmitting it from the ATM MPVC network line setting device to the SW control terminal connected to the ATM switch at the use start time.
The name of the M terminal, the name of the last ATM terminal to receive data, the use start time to start use, the use end time to end use, and the bandwidth required for data transmission and reception are stored as reservation information in the reservation information storage unit of the ATMPVC network line reservation automatic setting device. By inputting this, the ATMPVC network line reservation automatic setting device allows the ATM ATM VC network line reservation automatic setting device to use the outgoing ATM whose bandwidth is available between the use start time and the use end time.
A route between the terminal and the final ATM terminal is obtained, SW control information for controlling the ATM switch on the route is created, and the SW control information is transmitted to the SW control terminal at the use start time, and the originating ATM terminal /
Since the PVC line between the last ATM terminal is automatically set, the user obtains the route between the originating ATM terminal and the last ATM terminal whose bandwidth is available between the use start time and the use end time, and sets the ATM switch on the route. There is no need to create SW control information for control.

[0007]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a configuration diagram of an ATMPVC network line setting system showing one embodiment of the present invention. FIG.
, Two ATM terminals T01 and T02 and six ATM switches SW01 to SW06 are connected to an optical fiber L0.
They are interconnected via 1 to L09. Here, P0
1-1 to P06-6 are port numbers of SW01 to SW06. The port number of the ATM switch at the end of the optical fiber connected to the ATM switch is the AT number to which the optical fibers (hereinafter, links) L01 to L09 are connected.
Indicates the port number of the M switch. The ATM switches SW01 to SW06 have SW control terminals CTL01 to CTL
TL06 is connected by RS232C or Ethernet. In addition, one ATMPVC network line reservation automatic setting device 10000 and SW control terminals CTL01 to CTL0
6 is connected to an existing communication network such as the Internet. The SW control terminals CTL01 to CTL06 have network addresses ct101 to ct06.
It should be noted that the configuration of the ATM terminal, the ATM switch, the SW control terminal, and the like is not limited to FIG.

FIG. 2 is a block diagram of an ATMPVC network line reservation automatic setting device in the ATMPVC network line setting system in FIG. The ATMPVC network line reservation automatic setting device 10000 has an input unit 11100 for controlling input from a keyboard and a mouse, an output unit 11200 for controlling output to a display and the like, and a reservation information storage unit 12100 for storing reservation information. Part 12000,
A route search unit 13000 having a search result temporary storage unit 13100 for temporarily storing a route search result between ATM terminals,
ATM terminal information storage unit 1410 for storing TM terminal information
0, an ATM terminal information management unit 14000 for managing ATM terminal information, and a SW information storage unit 1 for storing SW information
SW information management unit 1 having SW 5100 and managing SW information
5000, a SW neighbor information storage unit 16100 that stores SW neighbor information, a SW neighbor information management unit 16000 that manages SW neighbor information, and a link information storage unit 17100 that stores link information, manages link information. A link information management unit 17000, a switching information management unit 18000 having a switching information storage unit 18100 for storing switching information, and a switching information management unit 18000 for managing switching information;
SW control reservation information storage unit 19 for storing W control reservation information
100, a SW control reservation information management unit 19000, a network interface unit 11300 for sending SW control information to a communication network, and an input unit 11100, an output unit 11200, a reservation information management unit 12000, a route search unit 13000, an ATM terminal information management unit 14000, SW
Information management unit 15000, SW adjacent information management unit 1600
0, a link information management unit 17000, a switching information management unit 18000, a SW control information transmission unit, and a control unit 1100 that controls the network interface unit 11300
0.

FIG. 3 is a detailed block diagram of a reservation information storage section in the ATMPVC network line reservation automatic setting device in FIG. The reservation information storage unit 12100 stores a plurality of pieces of reservation information 12200, 12300, and 12400.
The reservation information 12200, 12300, 12400 is created and stored by the input unit 11100. Hereinafter, details of the reservation information 12400 will be described. Reservation number column 1
2401 describes a reservation number R3 for identifying reservation information from other reservation information. The details of the reservation information table 12410 are as follows. Usage start time column 12
In 411, the scheduled time t1 to start using is described.
The use end time 12412 describes the scheduled end time t2 of use. Also, a column 1241 of the originating ATM terminal name
3 includes an ATM terminal name T01 for data transmission, and an end AT.
In the field 12414 of the M terminal name, there is an ATM for data reception.
The terminal name T02 is described. Furthermore, a band column 1241
5 describes a band 10M required for data transmission / reception between the originating ATM terminal and the terminating ATM terminal.

FIG. 4 is a detailed block diagram of the ATM terminal information storage section in the ATMPVC network line reservation automatic setting device in FIG. The ATM terminal information storage unit 14100 stores ATM terminal information 14200 and 14300 relating to a plurality of ATM terminals T01 and T02 included in the ATMPVC network line setting system shown in FIG. The ATM terminal information 14200, 14300 is input / created from the input unit 11100 and stored. ATM terminal information 1420
Details of 0,14300 are as follows. That is, the ATM terminal name fields 14210 and 14310 include:
ATM terminal names T01 and T02 are described, and are distinguished from other ATM terminal information. Also, a connection destination SW name column 1422
0,14320 is a switch to which an ATM terminal is connected.
Names SW01 and SW02 are described.

FIG. 5 is a detailed block diagram of the SW information storage section in the ATMPVC network line reservation automatic setting device in FIG. The SW information storage unit 15100 stores the A information shown in FIG.
Multiple ATMs included in the TMPVC network setting system
SW information 1520 on switches SW01 to SW06
0,15300,15400,15500,1560
0,15700 are stored. SW information 15200 ~
15700 is input / created from the input unit 11100 and stored. Hereinafter, the details of the SW information 15700 will be described, but the other SW information is exactly the same.
SW06 is described in the SW name column 15710, and the SW information 1570 is obtained from other SW information 15200 to 15600.
0 is identified. Column 15720 of SW control terminal address
Has the SW control terminal CTL0 connected to SW06
6 are described. The details of the resource table 15730 are as follows. The resource table 15730 includes a port number column 15740,
Output VPI column 15750, output band column 15753,
Output VCI column 15756, input VPI column 1576
0, input band column 15763, and input VCI column 1
5766. A port number column 15740 includes port numbers P06-1, P06-owned by SW.
2,... P06-6 are described. Also, output VPI
Column 15750 describes the VPI value that can be output from the port with the port number in the same row. Output Band Column 1575
3 describes a band available in the output VPI of the same bank. Column 15756 of input VCI contains input VPI of the same row.
The available VCI value is described. Column 1 of input VPI
5760 describes a VPI value that can be input from the port having the same port number. In an input band column 16763, a band available for the input VPI in the same row is described.
Input VCI column 15766 describes VCI values that can be used in the input VPI on the same row.

FIG. 6 is a detailed block diagram of the SW adjacent information storage unit in the ATMPVC network line reservation automatic setting device in FIG. The SW neighbor information storage unit 16100 stores SW neighbor information 15110 to 1 regarding a plurality of ATM switches included in the ATM PVC network line setting system shown in FIG.
5610 are stored. SW adjacent information 15110-1
5610 is input / created from the input unit 11100 and stored. The SW neighbor information 15110 to 15610 is S
It is composed of columns of W names 15120 to 15620 and SW adjacent information tables 15130 to 15630. The SW adjacency information tables 15130 to 15630 include a port number column 15140 to 15640 and a connection destination device name column 151.
50 to 15650. By referring to this table, the connection destination switch or terminal connected to the port having the port number is identified.

FIG. 7 is a detailed block diagram of the SW adjacency matrix information storage unit in the ATMPVC network line reservation automatic setting device in FIG. SW adjacency matrix information storage unit 16500
Accumulates one SW adjacency matrix information 16510. The SW adjacency matrix information 16510 is generated by the SW adjacency information management unit 16000. SW adjacency matrix information 16
The details of 510 are as follows. That is, S
The W adjacency matrix information 16510 is stored in the SW adjacency information storage unit 16.
SW neighbor information 15110 to 15 stored in 100
610 is composed of a matrix in which the ATM switches SW01 to SW06 are arranged in rows and columns. Each matrix element is a row element ATM
When the switch and the ATM switch of the column element are connected, the element is given a '1'. If not connected, '0' is given.

FIGS. 8 and 9 show the ATMPVC in FIG.
FIG. 3 is a detailed block diagram of a link information storage unit in the network line reservation automatic setting device. The link information storage unit 17100 is configured as shown in FIG.
Link information 1720 concerning a plurality of links L01 to L09 included in the ATMPVC network line setting system shown in FIG.
0, 17250, 17300, 17350, 1740
0, 17450, and 17500 are stored. The link information 17200 to 17500 is stored in the link information management unit 170.
00 is generated. Hereinafter, the link information 17200 will be described in detail, but the others are completely the same. The link information 17200 includes a link information number column 17201 and two pieces of link child information 17200-1 and 17200-2. The link number column 17201 contains the link number L
01 is described, and other link information 17250 to 1760
From 0, the link information 17200 is identified. The link child information 17200-1 includes a link child information number column 17201-1 for uniquely identifying the link child information, and an output SW name column 1
7212-1, output port number column 17214-1, input SW name column 17213-1, input port number column 17
215-1, a resource table 17220-1, and a reservation table 17230-1. The output SW name column 1722-1 includes an ATM switch name SW0 for outputting an ATM cell in a link connected to one end of the link.
1, the output port number column 1724-1 has a link L
01 connected to SW01 port number P01-1
Is described. The input SW name column 17213-1 is connected to an ATM switch name SW02 for inputting an ATM cell into a link connected to the other end of the link, and the input port number column 17215-1 is connected to a link L01. S
The port number P02 of W02 is described.

The resource table 17220-1 stores the input S from the output port P01-1 of the output SW SW01.
A column 17221-1 of the VPI value of the ATM cell available to the input port P02-4 of SW02 which is W, and a column 17222 of the VCI value of the ATM cell available in each VPI
-1, bandwidth 17223 available at each VPI value
It consists of one column. Also, a reservation table 17230
-1 indicates a column 1723-1 of the reservation number, a column 17232-1 of the use start time in the reservation number, a column 17233-1 of the use end time, and a column 1723 of the reserved VPI value
4-1, a reserved VCI value column 17235-1,
It is composed of a reserved band column 17236-1. Similarly, the other link child information 17200
-2, a link child information number column 17201-2 for uniquely identifying link child information, and an output SW name column 17212-
2, output port number column 1724-2, input SW name column 17213-2, input port number column 17215-
2, a resource table 17220-2 and a reservation table 17230-2. Output SW name column 1
7212-2, the input SW name column 17213-2 has an ATM switch name S which is the reverse of the link child information 17200-1.
W02 and SW01 are described. Output port number column 1
Also in the column 7214-2 and the input port number column 17215-2, port numbers P02-4 and P01-1 opposite to the link child information 17200-1 are described. In other words, the output switch name and input SW name fields contain ATM switch names SW02 and SW01 that output ATM cells within the link connected to both ends of the link, and the output port number and input port number fields contain Is the S to which the link L01 is connected.
Port numbers P02-4 and P01-1 of W02 and SW01
Is described. The resource table 17220-2 includes a column 17221-2 of VPI values of ATM cells available from the port number P02-4 of the output SW SW02 to the port number P01-1 of the input SW SW01, and each VPI.
Column 1722 of VCI values of ATM cells available in
2-2, available bandwidth 17223 for each VPI value
-2 columns. Reservation table 17230-2
Is a column 17231-2 of the reservation number, a column 17232-2 of the use start time in the reservation number, and a column 17 of the use end time.
233-2, column 17234 of reserved VPI values
2, a reserved VCI value column 17235-2 and a reserved band column 17236-2.

FIG. 10 is a detailed block diagram of a search result temporary storage unit in the ATMPVC network line reservation automatic setting device in FIG. The search result temporary storage unit 13100
A search result table 13200 in which candidate routes obtained by searching from the TM terminal name to the final ATM terminal name are recorded is temporarily stored. The search result table 13200 includes a candidate route number column 13400 and a calling ATM terminal name column 1341.
4. End ATM terminal name column 13415, link child information number columns 13420 to 13426, SW name 13430 to 13
435 columns. In each row, links and SWs from the originating ATM terminal T01 to the ending ATM terminal T02 in the candidate route 1, the candidate route 2, the candidate route 3, and the candidate route 4 are sequentially recorded.

FIGS. 11 and 12 show the ATMP in FIG.
FIG. 4 is a detailed block diagram of a switching information storage unit in the VC network line reservation automatic setting device. Switching information storage unit 1
8100 includes a plurality of pieces of switching information 18100, 18
300 and 18400 are stored. The switching information 18100, 18300, 18400 is generated by the switching information management unit 18000. Hereinafter, the switching information 18400 will be described in detail, but the other switching information has the same content. Switching information 18
Reference numeral 400 denotes a reservation number column 18410, a use start time column 18411, a use end time column 18412, a use band column 18413, and a switching information table 184.
16 is comprised. Switching information table 184
16 is a column 18414 for the originating ATM terminal name, a column 18415 for the final ATM terminal name, and a column 18420 for the link child information number.
18424, link number information number 18420-184
Column 1 of VPI value of ATM cell reserved by link 24
8184-1 to 18424-1, VCI value columns of ATM cells reserved by the links of the link number child information numbers 18420 to 18424, 18420-2 to 18424-2, S
Columns for W names 18430 to 18434, columns for SW names 1843
Columns of SW input ports 18420-3 to 18424 for inputting cells from the links on the left of each of 0 to 18434
-3, SW output port columns 18420-0 to 18424-0 for outputting cells to the link on the right of the SW.

FIGS. 13 and 14 show the ATMP in FIG.
FIG. 3 is a detailed block diagram of a SW control reservation information storage unit in the VC network line reservation automatic setting device. SW control reservation information storage unit 1
9100 indicates a plurality of pieces of SW control reservation information 19200 to 19
400 are accumulated. Hereinafter, the SW control reservation information 194
00 will be described in detail, but other information has exactly the same contents. The SW control reservation information 19400 includes a reservation number column 19
401, a use start time column 19411, a use end time column 19412, and a plurality of pieces of SW control information 19420 to 194.
50. SW control information 19420 to 194
Reference numeral 50 denotes a column for SW control terminal addresses 19421 to 194.
51, line holding time fields 19422 to 19452, bandwidth fields 19423 to 19453, input port number fields 19424 to 19454 for inputting ATM cells, A to be input
Columns 19425 to 19455 of the input VPI value of the TM cell,
Column 19426-1 of input VCI value of ATM cell to be input
9456, Output port number column 1 for outputting ATM cells
9427-19457, output VP of ATM cell to output
It comprises I value columns 19428 to 19458 and output VCI value columns 19429 to 1959 of ATM cells to be output.

FIGS. 15, 16 and 17 are flowcharts of processing for generating SW adjacency matrix information and link information in the ATMPVC network line reservation automatic setting device in FIG.
In this processing, the ATMPVC network line reservation automatic setting device 1
0000 input unit 11100, control unit 11000, SW
Adjacent information management unit 16000, link information management unit 1700
0, the SW information management unit 15000 and the ATM terminal information management unit 14000 are related. In addition, the ATM terminal information in the ATM terminal information storage unit 14100, SW
It is assumed that the SW information in the information storage unit 15100 and the SW adjacent information in the SW adjacent information storage unit 16100 have already been created / stored from the input unit. From the input section, switch
Adjacency matrix information and a link information generation process start request are input (S100). Accordingly, the control unit requests the SW adjacency information management unit 16000 to create SW adjacency matrix information (S110). SW adjacent information management unit 160 that received the request
00 generates, in the SW adjacency matrix information storage unit 16500, a model of the SW adjacency matrix information 16510 in which the SW names of the SW adjacency information 15110 to 15610 stored in the SW adjacency information storage unit 16100 are arranged in rows and columns (S120). ). S
Nothing has yet been assigned to the matrix element of the W adjacent matrix information 16510. Therefore, the SW adjacent information management unit 16000
Indicates whether or not there is a connection between the row element SW and the column element SW in the SW adjacency matrix information 16510 by individual SW adjacency information 15110-1.
5610 SW adjacent information table 15130 to 1563
Judgment from 0, if there is a connection relationship, '1' is added to the matrix information, and if there is no connection relationship, '0' is added to the matrix element.
Is substituted (S140). The SW adjacency information management unit 16000 that has finished substituting the numerical values into the matrix elements notifies the control unit that the SW adjacency matrix information creation has ended (S150). The control unit that has received the SW adjacency matrix information creation completion notification requests the link information management unit 17000 to create link information (S16).
0). Upon receiving the link information creation request, the link information management unit 17000 starts creating link information between SWs (S165). The link information management unit 17000 stores the SW adjacency matrix information 16510 in the SW adjacency information management unit 16000.
Is requested (S167). Upon receiving the request, the SW neighbor information management unit 16000 switches the SW neighbor matrix information touch storage unit 1650.
A response is given to the SW adjacency matrix information 16510 stored in 0 (S169).

The link information management unit 17000 searches the SW adjacent matrix information 16510 for a matrix element whose matrix element is "1" (S170). Link information management unit 1 that searched for a matrix element (SW01, SW02) that is "1"
7000 determines that a link exists between the SW of the row element and the SW of the column element, and confirms whether or not the corresponding link information exists in the link information storage unit 17100 (S17).
5). In addition, the corresponding link information indicates that the row element SW01 and the column element SW02 are input SW, output SW, or output SW.
W, input SW. If it already exists,
The presence or absence of an unsearched matrix element is confirmed (S176). If there is an unsearched matrix element, the process returns to S170 and repeats the search processing. If the link does not exist in the link information storage unit 17100, the link information management unit 17000 generates a template of the link information 17200 in the link information storage unit 17100. The link information management unit 17000 describes the link information L01 that uniquely identifies the link information from the other link information in the link number column 17201 of the link information, and links the link information 17200-1 of one of the link information 17200. Child information number column 17201-1, output SW column 1
7212-1, an input SW column 17213-1 include a link child number L01-1, a row element SW01, and a column element SW01.
02 in the link information field 17201-1 of the other link information 17200-1 and the output SW field 172.
12-2, an input SW column 17213-2 includes a link child number L01-2, a column element SW02, and a row element SW01.
Is described (S210). Next, the link information management unit 17
000 is each link child information 17200-1, 17200
-2 resource tables 17220-1 and 17220-
2 is started (S220). Link information management unit 1
7000 is a row element SW01 and a column element SW01
A request for SW information No. 02 is issued to the SW information management unit 15000 (S230). SW information management unit 15000 receiving the request
Are SW information 15200 and 153 of SW01 and SW02.
00 is returned to the link information management unit 17000 (S23).
5).

The link information management unit 17000 stores the row element S
It requests the SW neighbor information of the W01 and the column element SW02 to the SW neighbor information management unit 16000 (S237). Upon receiving the request, the SW adjacent information management unit 16000 switches SW01 and SW0.
The second SW information 15110 and 15210 are returned to the link information management unit 17000 (S239). Next, the link information management unit 17000 switches the SW neighbor information 15110,
The port numbers P01-1 and P02-4 where the row element SW01 and the column element SW02 are connected to each other are searched from 15210, and P01-1 is entered in the output port number column 1724-1 and the input port number column 17215-2. And the output port number column 1724-2 and the input port number column 1
Record P02-4 in 7215-1. SW information 152
VPI values that can be output from 00 and 15300 from port P01-1 of SW01, bandwidths available for each VPI value, VCI values available for each VPI value, and port P of SW02
02-4, a VPI value usable for each VPI value, a VCI value usable for each VPI value, and a VPI value of an ATM cell usable for the link L01.
The bandwidth available for each VPI value and each VPI value are collated and recorded in the resource table 17220-1. Similarly, VPI that can be output from port P02-4 of SW02
Value, bandwidth available for each VPI value, VCI value available for each VPI value, VPI value for ATM cells that can be input to port P01-1 of SW01, bandwidth available for each VPI value, each VPI value Search for available VCI values, and VPI values of ATM cells available for link L01, each VCI value.
The bandwidth available for the PI value and each VPI value are collated and recorded in the resource table 17220-2 (S250). The generation of the link information ends (S260). The link information management unit 17000 checks whether there is an unsearched matrix element (S176).
The creation of the link information between them ends (S262).

The link information management unit 17000 starts creating link information between the ATM terminals / SWs (S265).
The link information management unit 17000 requests all ATM terminal information from the ATM terminal information management unit (S270). Upon receiving the request, the ATM terminal information management unit responds with all the ATM terminal information (S280). The link information management unit 17000
The received ATM terminal information is searched from the ATM terminal information 14300 in order from the ATM terminal name column 14210 to T02 and from the connection destination SW name column 14320 to SW03 (S2).
85). The link information management unit 17000 checks whether there is link information between T02 and SW03 in the link information storage unit 17100 (S290). Here, T02 and SW
The link information between 03 is T02 and SW03 is input SW,
This is link information described as an output SW or an output SW or an input SW. The link information management unit 17000
If the link information is present in the link information storage unit 17100, it is checked whether there is any unsearched ATM terminal information (S29).
5) If there is unsearched ATM terminal information, repeat the ATM terminal information connection destination SW search (S285). When confirming that there is no link information between T02 and SW03 in the link information storage unit 17100, the link information management unit 17000 generates a link information template 17600 (S300). The link information management unit 17000 stores the other link information 17600, 17650, 17300, 173 in the link number column 17601 of the link information 17600.
50, 17400, 17450, 17500, 1755
A link information number L09 for uniquely identifying the link information 17600 from 0 is described. The link information field 17 of the link information 17600-1 of one of the link information is also provided.
609-1, an input SW column 17612-1, and an output SW column 17613-1 include L09-1, SW03, and T02.
In the link child information number column 17601-2 and the input SW column 17612 of the other link child information 17600-2.
-2, an output SW column 17613-2 describes a link child information number, an ATM terminal name, and a connection destination SW name (S30).
0).

Next, the link information management unit 17000 starts creating the resource tables 17620-1 and 17620-2 of the respective link child information 17600-1 and 17600-2 (S310). The link information management unit 17000
The SW information of SW03 is requested to the SW information management unit 15000 (S330). SW information management unit 150 receiving the request
00 responds to the link information management unit 17000 with the SW information 15400 of SW03 (S335). Next, the link information management unit 17000 stores the SW neighbor information of SW03 in S
A request is made to the W adjacent information management unit 16000 (S337).
Upon receiving the request, the SW neighbor information management unit 16000 switches SW0
3 and the link information management unit 170
00 (S339). Link information management unit 170
00 searches the SW adjacent information 15310 for the port number P03-6 to which T02 is connected, and retrieves the SW information 154.
VPI values that can be output from 00 to port P03-6, bands available for each VPI value, V available for each VPI value
CI value, VPI value that can be input to port P03-6, bandwidth available for each VPI value, V available for each VPI value
The CI value is searched and the resource table 17620-1,1
7620-2 (S350), and ends the generation of the corresponding link information (S360). Then, the link information management unit 17000 confirms whether or not there is unsearched ATM terminal information (S295), and if there is no unsearched ATM terminal information, ends the creation of link information between the ATM terminals / SWs (S370). The link information management unit 17000 notifies the control unit 11100 of the end of the link information creation (S38).
0). Control unit 1110 that has received the link information creation notification
0 displays an SW adjacency matrix information / link information creation end message on the output unit 11200 (S390), and ends the SW adjacency matrix information / link information creation processing (S40).
0).

FIGS. 18, 19 and 20 show the ATM of FIG.
It is a flowchart of ATMPVC line reservation processing in a PVC network line reservation automatic setting apparatus. Means related to this processing include an input unit 11100, a control unit 11000, a reservation information management unit 12000, a route search unit 13000, an ATM
Terminal information management unit 14000, link information management unit 1700
0, switching information management unit 18000, SW control reservation information management unit 19000, and SW information management unit 1500
0 and almost all means are associated with processing. already,
ATM terminal information in the ATM terminal information storage unit 14100, SW information 152 in the SW information storage unit 15100
00 to 15700, the SW neighbor information 15110 to 15610 in the SW neighbor information storage unit 16100
100, the SW adjacency matrix information 16510 in the SW adjacency information storage unit 16100 and the link information 172 in the link information accumulation unit 17100.
It is assumed that 00 to 17600 are generated / accumulated by the SW adjacency matrix information and link information generation processing flow illustrated in FIG. First, a line reservation start request is input from the input unit 11100 (S500). The control unit 11000 generates a model of the reservation information in the reservation information management unit 12000 in the reservation information storage unit 12100, and requests output to the output unit 11200 (S510). Upon receiving the reservation information template generation / output request, the reservation information management unit 12000 sets the reservation information 124
01 is generated and output to the output unit 11200 (S
512). From the input unit 11100, the scheduled use time t1 is entered in the use start time field 12411 of the reservation information 12401, and the scheduled use end time t3 is entered in the use end time field 12412. Also, the ATM terminal name T01 for performing data transmission is entered in the column 12413 of the originating ATM terminal name.
Is input into the terminal name of end ATM terminal T02 in the field 12414 of the end ATM terminal name. A bandwidth 10M necessary for data communication between the originating ATM terminal and the terminating ATM terminal is input to the bandwidth column 12415 (S520).

After completing the input to the reservation information table 12410, a reservation request is input from the input unit 11100 (S5).
30). The control unit 11000, which has received the line reservation request notification from the input unit 11100, transmits to the reservation information management unit 12000 a 10M band from the originating ATM terminal to the end A from the use start time t1 to the use end time t2 of the reservation information table 12410.
A request is made to reserve a route that can be used between the TM terminals (S54).
0). Reservation information management unit 120 that has received the route reservation request notification
00 indicates to the route search unit 13000 the use start time t1 of the reservation information between the originating ATM terminal T01 and the ending ATM terminal T02.
A request is made to search for a route in which a band can be used from the time t2 to the end time of use (S545). From ATM terminal T01 to end A
Route search unit 1 receiving a route search request between TM terminals T02
3000 sends to the ATM terminal information management unit 14000 an AT
A search request for a connection destination SW connected between the M terminal T01 and the terminal ATM terminal T02 is issued (S550). Upon receiving the search request, the ATM terminal information management unit 14000 stores the originating ATM terminal T0 stored in the ATM terminal information storage unit 14100.
1 and ATM terminal information 14200 of the last ATM terminal T02,
From 14300, connection destination SW fields 14220, 14320
For SW01 and SW03 from the route search unit 1300
0 is returned (S560). Route search unit 1 receiving the response
3000 uses SW adjacency matrix information stored in the SW adjacency matrix information accumulation unit 16100 to switch from SW01 to S
A route search between W03 is started (S570). The algorithm of this route search is described in the document “Algorithm Design and Analysis 1” ('Graph Algorithm', Science, p154-
204, 1977), a depth-first search of a graph for searching for a path from an arbitrary point to all other points in a connected graph can be considered. .

The route search unit 13000 determines the obtained SW01
All the candidate routes from to SW03 are sequentially stored in the search result table 13200 of the search result temporary storage unit 13100 with a certain priority criterion (for example, in the present flow, the order of the number of SWs on the route is small) (S580). The route search unit 13000 includes, in order from the candidate route 1 stored in the search result table 13200 of the search result temporary storage unit 13100, the link child information numbers of the links on the candidate route, the use start time t1 of the reservation information 12400 for each link, An inquiry is made to the link information management unit 17000 about the availability of the band 10M during the use end time t2 (S590). Upon receiving the inquiry, the link information management unit 17000 searches the link information storage unit 17100 for link child information numbers of all links on the candidate route in order from the originating ATM terminal side, and compares the reservation table and the resource table of each link child information. VPI value that can be used between the use start time and the use end time,
The available VCI value and the presence or absence of an available band are determined (S610). Link information management unit 1 that received the inquiry
The reference numeral 7000 inquires the route search unit 13000 if there is no available VPI value or available VCI value or available bandwidth in some links on the candidate route between the use start time and the use end time. Then, a use-disapproval notice is issued on the received candidate route (S620). The route search unit 13000, having received the notification of the unusability, repeats the processing of S590 for the next candidate route if there is an uninquired next candidate route (S630). Link information management unit 1
When the determination of 7000 is unavailable for all candidate routes,
The reservation information management unit 12000 is notified that all candidate reservations are not possible (S640). The reservation information management unit 12000 that has received the reservation refusal notification notifies the control unit 11000 that the route reservation between the ATM terminals is impossible (S642). The control unit 11000, which has been notified that the route reservation between ATM terminals is not possible,
200 indicates that reservation is not possible (S644), and terminates the reservation process (S646).

Link information management unit 17 receiving the inquiry
000 indicates a VPI value, a usable VCI value, and a usable band between the use start time and the use end time for all the links of the candidate route 1, and the route search unit 1
The availability notification and the link child numbers L08-1 and L0 on the route candidate route 1 queried to 3000
1-1, L05-2, and L06-1 are returned (S65
0). The route search unit 13000 that has received the notification that the candidate route 1 is available is temporarily stored in the search result storage unit 1310.
Columns 13421, 13422, and 1342 of the link child information number in the row of candidate number 1 in the search result table 13200 of 0
3 is a link child information number L08-1, L01-1, L05
-2, L06-1 is written (S655). At the same time, a reservation permission response is issued to the reservation information management unit 12000 together with the candidate path number 1 (S660). The reservation information management unit 12000 having received the response indicating that the reservation is possible together with the candidate path number 1 records the reservation number R3 that can be uniquely identified from other reservation information in the reservation number column 12401 of the reservation information 12400 (S6).
70), request the switching information management unit 18000 to create switching information along with the candidate path number 1 and the reservation number R3 (S680). Upon receiving the switching information creation request, the switching information management unit 18000 creates a switching information template 18400, and stores the reservation number R3 in the reservation number column 18410 of the switching information 18400.
Is recorded, and the use start time t1 and use end time t2 entered in the use start time column 12411, use end time column 12412, and band column 12415 of the reservation information 12400 stored in the reservation information storage unit 12100. , The bandwidth 10M is recorded in the column 18411 of the use start time, the column 18412 of the use end time, and the column 18413 of the band, and the link recorded in the column of the candidate route number 1 in the search result table 13200 of the search result temporary storage unit 13100. The child information numbers L08-1, L01-1, L05-2, and L06-1, and the SW names SW01, SW02, SW06, and SW03 are set in the link child number columns 18420 to 18424 of the switching information table 18416 of the switching information 18400.
And records in the order of SW name columns 18430 to 18433. The switching information management unit 18000 sequentially determines the corresponding link child information numbers L08-1, L01-1, L05-
2, an output port number column of link child information of L06-1,
The output port number recorded in the input port number column,
The search for the input port number and the bandwidth 10M between the use start time t1 and the use end time t2 in the range of the resource table.
The reservation number R3, use start time t1, use end time t2, use end time 10M recorded in the use start time column 18411, use end time column 18412, use band 18413 are used to reserve VPI and VCI values that can be used. At the same time, a request is made to the link information management unit 17000 (S710).

Link information management unit 17000 receiving the request
Are the link child information numbers L08-1, L01-1, L05
-2, each link child information 17550-1, 1, L06-1
The resource table and the reservation table in 7200-1, 17400-2, and 17450-1 are compared, and a VPI value and a VCI value that the bandwidth 10M can use between the use start time t1 and the use end time t2 are searched, and the link child is searched. Information numbers L08-1, L01-1, L05-2, L06-1
The VPI value, the VCI value, and the bandwidth are recorded together with the reservation number in the reservation table of the link information table, and the link child information 17550-1, 17200 of the link child information numbers L08-1, L01-1, L05-2, and L06-1 are recorded. -1,174
The VPI value and the VCI value together with the output port number and the input port number recorded in the output port number column and the input port number column of 00-2 and 17450-1 are returned to the switching information management unit 18000 to notify the end of the reservation ( S72
0). Link child information numbers L08-1, L01-1, L0
5-2, the output port number, the input port number, and the link child information numbers L08-1 and L08-1 recorded in the output port number and input port number fields of the link child information of L06-1.
The switching information management unit 18000 having received the reservation end response together with the VPI value and the VCI value reserved in the link reservation tables 01-1, L05-2, and L06-1,
The corresponding link child information number L0 in the switching information table 18416 of the switching information storage unit 18100
VPI of 8-1, L01-1, L05-2, L06-1
Columns 18420-1 to 18424-1, and VCI value column 1
8420-2 to 18424-2, output port number column 1
8420-0 to 18424-0, input port number column 1
The received output port number, input port number, VPI value, and VCI value are recorded in 8420-3 to 18424-3 (S730), and a switching information creation end notification is issued to the reservation information management unit 12000 (S735). Reservation information management unit 1200 that has received the switching information creation end notification
0 is the SW control reservation information management unit 1 together with the reservation number R3.
9000 is requested to create SW control information (S74).
0). Upon receiving the SW control information creation request together with the reservation number R3, the SW control reservation information management unit 19000 generates a template 19400 of SW control information (S745), records the reservation information number R3 in the reservation number column 19401, and Reservation information number R3 stored in the information storage unit 12100
Column 12411 of the use start time of the reservation information 12400 of
The use start time t1 and use end time t2 entered in the use end time column 12412 and the band column 12415 are used as the use start time column 19411 and the use end time column 1941.
2 and the SW name column 184 of the switching information table 18416 of the switching information 18400 of the reservation number R3 stored in the switching information storage unit 18100.
SW01 and SW0 recorded in 30 to 18433
Request the SW information management unit 15000 to search for the address of the SW control terminal of each SW together with SW06 and SW03 (S750).

SW01, SW02, SW06, SW03
SW information management unit 15000 receiving the SW control terminal address search request together with SW01, SW02, SW0
6, the SW control terminal address of SW03 is stored in the SW information 15200, 15300, 157 of the SW information storage unit 15100.
00, 15400, SW01, SW02, S
W06, SW control terminal address ct101 of SW03,
A response is sent to the SW control reservation information management unit 19000 together with ct02, ct06, and ct03 (S760). S
SW control terminal addresses ct101, ct02, ct06, ctl of W01, SW02, SW06, SW03
03 receiving SW control reservation information management unit 19000
Are ct011, ct02, ct10 in the SW control terminal address column of the SW control information 19420 to 19450.
6, ct103, and input port number column 1942.
4 to 19454 include a switching information table 1841.
6 input port number columns 18430-3 to 18433-
A value of 3 is recorded. Also, an input VPI value column 1942
Switching information table 1841 is stored in 5-19455.
6, the values of the VPI columns 18420-1 to 18423-1 are recorded, and the input VCI value columns 19426 to 19456 are stored in the VCI column 1 of the switching information table 18416.
The values of 8420-2 to 18423-2 are recorded, and the output port number columns 19427 to 19457 are stored in the output port number column 1842 of the switching information table 18416.
Values from 1-0 to 18424-0 are recorded. Further, columns of output VPI values 19428 to 19458 include 18421-1 to 1842 of the switching information table 18416.
4-1 is recorded, and output VCI value columns 19429-19
Reference numeral 459 designates 18 of the switching information table 18416.
421-2 to 18424-2 are recorded, and the bandwidth column 19 is recorded.
In 423 to 19453, a value 10M of a band column 18413 of the switching information 18400 is recorded. further,
In the line holding time columns 19422 to 29452, the value t1 of the use start time column 19411 and the use end time column 19
412, the difference value t2-t1 of the value t2 is recorded (S
770). The reservation information management unit 12000 is notified of the completion of the creation of the SW control information (S780). Receiving the SW control information creation end notification, the reservation information management unit 12000 notifies the control unit 11000 of the end of the path reservation between ATM terminals (S790). The control unit 11000 that has received the notification of the end of the route reservation between the ATM terminals displays the end of the reservation on the output unit 11200 (S795), and ends the reservation processing (S8).
00).

FIG. 21 is a flowchart of an automatic line setting process of the ATMPVC network line setting system in FIG. The SW control reservation information management unit 19000 constantly compares the current time with the values in the use start time columns 1921 to 19411 of the SW control reservation information 19200 to 19400 stored in the SW control information storage unit 19100 ( S900). The SW whose use start time of the SW control reservation information 19400 matches the value t1 of the current time column 19411
When the existence of the control reservation information 19400 is confirmed (S91)
0), the SW control information 19420 to 19450 of the corresponding SW control reservation information 19400 is
SW control terminal address column 19421 in 19450
SW control terminal address ct10 shown in 19451
1, ct02, ct06, and ct103 (S920). SW control terminals CTL01, CTL02,
CTL06 and CTL03 are SW control information 19420-
The line is set by controlling the SW according to the contents of 19450, and the line is held for the line holding time (S930). As described above, in this embodiment, the source A that performs data transmission
TM terminal name, end ATM terminal name for receiving data, use start time to start use, use end time to end use,
By inputting the band required for data transmission / reception as reservation information into the reservation information storage unit of the ATMPVC network line reservation automatic setting device, the ATMPVC network line reservation automatic setting device requires the band between the use start time and the use end time. Calculates the path of the available ATM terminal / end ATM terminal, creates SW control information for controlling the ATM switch on the path, transmits the SW control information to the SW control terminal at the use start time, and The PVC line between the last ATM terminals can be automatically set.

[0031]

As described above, according to the present invention,
The ATMPVC network line reservation automatic setting device sends the ATM terminal /
Since the PVC line between the end ATM terminals is automatically set, the source A whose bandwidth is available between the use start time and the use end time
AT on the route to find the route between the TM terminal and the final ATM terminal
There is no need to create SW control information for controlling the M switch, and the PVC line between the originating ATM terminal and the terminating ATM terminal can be used. ATM stored in the SW information management unit
Based on SW information, which is information on resources available at each port of the switch, the range of resources automatically set by the ATMPVC network line setting system is set to each SW.
Can be limited for each port.

[Brief description of the drawings]

FIG. 1 is a block diagram of an ATMPVC network line setting system showing an embodiment of the present invention.

FIG. 2 is a detailed block diagram of an ATMPVC network line reservation automatic setting device in FIG. 1;

FIG. 3 is a detailed block diagram of a reservation information storage unit in FIG. 2;

FIG. 4 is a detailed block diagram of an ATM terminal information storage unit in FIG. 2;

FIG. 5 is a detailed block diagram of a SW information storage unit in FIG. 2;

FIG. 6 is a detailed block diagram of a SW adjacent information storage unit in FIG. 2;

FIG. 7 is a detailed block diagram of a SW adjacency matrix information storage unit in FIG. 2;

FIG. 8 is a part of a detailed block diagram of a link information storage unit in FIG. 2;

FIG. 9 is another part of the detailed block diagram of the link information storage unit.

FIG. 10 is a detailed block diagram of a search result temporary storage unit in FIG. 2;

FIG. 11 is a part of a detailed block diagram of a switching information storage unit in FIG. 2;

FIG. 12 is another part of the detailed block diagram of the switching information storage unit.

FIG. 13 is a part of a detailed block diagram of a SW control information storage unit in FIG. 2;

FIG. 14 is another part of the detailed block diagram of the SW control information storage unit.

FIG. 15 is a part of a flowchart of SW adjacency matrix information and link information generation processing showing one embodiment of the present invention.

FIG. 16 is another part of the flowchart of the SW adjacency matrix information and link information generation process.

FIG. 17 is another part of the flowchart of the SW adjacency matrix information and link information generation process.

FIG. 18 is a part of a flowchart of ATMPVC network line reservation processing showing one embodiment of the present invention.

FIG. 19 is another part of the flowchart of the ATMPVC network line reservation process.

FIG. 20 is another part of the flowchart of the ATMPVC network line reservation process.

FIG. 21 is a flowchart of an automatic line setting process according to an embodiment of the present invention.

FIG. 22 is a block diagram of a conventional ATMPVC network line setting system.

FIG. 23 is a configuration diagram of an ATMPVC network line setting device in a conventional ATMPVC network line setting system.

FIG. 24 is a flowchart of a line setting process in a conventional ATMPVC network line setting system.

[Explanation of symbols]

10000: ATMPVC network line reservation automatic setting device, 1
1000, 21000: control unit, 11100, 2110
0: input unit, 11200, 21200: output unit, 120
00: reservation information management unit, 113000, 21300: network interface unit, 13000: route search unit, 12100: reservation information storage unit, 13100: search result temporary storage unit, 14000: ATM terminal information management unit, 1
4100 ATM terminal information storage unit, 15000 SW information management unit, 15100 SW information storage unit, 16000
SW adjacency information management unit, 16100 ... SW adjacency information storage unit, 16500 ... SW adjacency matrix information accumulation unit, 17000
... Link information management unit, 17100 ... Link information storage unit,
18000: Switching information management unit, 18100: Switching information storage unit, 19000: SW control reservation information management unit, 19100: S
W control reservation information, 20000... ATMPVC network line setting device, 29000... SW control information transmission unit, 19100... SW control information storage unit, 29100... SW control information.

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] August 2, 1996

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

Claims (2)

[Claims] A switch control terminal for controlling an ATM switch; transmitting SW control information to the SW control terminal via a communication network;
An ATMPVC network line setting system comprising an ATMPVC network line reservation automatic setting device for setting a VC line, the ATMPVC network line reservation automatic setting device comprising: reservation information management means for storing and managing reservation information; ATM terminal or ATM adjacent to
SW adjacency information management means for accumulating and managing SW adjacency information as switch information, converting the SW adjacency information from the SW adjacency information into an adjacency matrix, and accumulating and managing the adjacency matrix information as SW adjacency matrix information; A path from the ATM terminal to the end ATM terminal is searched based on the SW adjacency matrix information, and a path in which the band in the reservation information is available from the use start time to the use end time among the searched candidate paths. A route search means to be selected and A which is information of an ATM switch adjacent to each ATM terminal.
ATM terminal information management means for storing and managing TM terminal information, addresses of SW control terminals for controlling each ATM switch, and VPI available for each port of the ATM switch
Information management means for accumulating and managing SW information which is information on resources such as value, VCI value, band, etc., and resources available on a link connecting each ATM switch are obtained from ATM terminal information, SW information and SW neighbor information. ,
Link information management means for accumulating and managing the resource reservation status of each link as link information; and VPI values and VCI values used by each link on the route selected by the route search means and used by each SW on the route. A switching information management means for obtaining an input port number and an output port number and storing and managing these as switching information; and transmitting to each SW control terminal based on the switching information.
SW control reservation information management means for creating W control information, accumulating this as SW control reservation information, and transmitting the SW control reservation information to each SW control terminal when the use start time comes. ATMPVC network line setting system. 2. An ATMPVC network line setting method for performing remote control by transmitting SW control information from an ATMPVC network line reservation automatic setting device to a SW control terminal and causing the SW control terminal to control an ATM switch, When the line reservation is started, the ATMPVC network line reservation automatic setting device uses the scheduled use start time, the scheduled use end time, the name of the transmitting ATM terminal for transmitting data, the name of the ending ATM terminal for receiving data, and the data communication. The required bandwidth,
The reservation information is registered in the reservation information table and a line reservation request is made to the reservation information management means. The reservation information management means transmits the reservation information between the source ATM terminal and the end ATM terminal registered with the route search means. A request is made for a route search in which the band can be used from the scheduled use start time to the scheduled use end time, and the route search means includes the source ATM terminal and the end ATM terminal registered with the ATM terminal information management means. The ATM terminal information management means issues a search request for the connection destination SW to which the connected ATM terminal is connected.
The connection destination SW is searched from the ATM terminal information of the TM terminal,
In response to the route search means, the route search means performed a route search between the connection destination SWs using the SW adjacency matrix information, and stored all the candidate routes in a search result table according to a predetermined priority order criterion. Thereafter, the link information management means is inquired about the availability of the band between the use start time and the use end time of the reservation information in each link in order through the candidate route, and the link information management means comprises: And the resource table are compared to determine whether there is a usable VPI value, VCI value, and whether or not there is a band. In addition to the notification, the reservation information management unit, which responds to the link number on the route and receives the notification of the availability, requests the switching management unit to create switching information. The switching management means creates a template of the switching information, requests the link information management means to search for the output and input port numbers to be used, and reserves the VPI and VCI values to be used. Notifying the information management means of the completion of the creation of the switching information; the reservation information management means making a switch control information creation request to the switch control information management means; and the switch control information management means comprising: a switch information management means. After the switch control information is generated by making a search request for the SW control terminal address, the reservation information management means is notified of the end of the switch control information generation, and the reservation processing is terminated. When the information management unit confirms that the use start time of the switch control reservation information matches the current time, the information management unit determines Each switch control information for pitch control reservation information transmitted to the switch control terminal, the line set according to the switch control information, ATMPVC network circuit setting method and performing remote control of the line holding the like.