KR100218686B1 - Apparatus and method for registering vp/vc connection of reservation mode in small/medium atm exchanging system - Google Patents

Abstract

The present invention relates to a reservation mode virtual path / channel connection registration device in a small and medium ATM switching system and a reservation mode virtual path / channel connection registration method using the same, in particular, a point-to-point point at a reserved time in an ATM virtual path / channel connection switching system. In order to provide the leased line service, the operator interface can register the virtual path / channel connection from the operator during system operation (ie, the operator can register at any time through the system-operator interface during system operation, and connect with the service time at the time of registration). By specifying the unit (virtual path / virtual channel), connection identifier, connection direction (unidirectional / bidirectional), bandwidth, etc., the operator can specify the service time during the use of the system in the small and medium ATM switching system, so that the fixed or reserved mode is frequently used. Small and medium ATM to require two dedicated line configurations Reservations mode in the ring system virtual path / channels connected device registration mode and using the same reservation relates to the virtual path / channels connected to registration.

Description

Reservation mode virtual path / channel connection registration device in small and medium-sized ATM system and reservation mode virtual path / channel connection registration method using the same

1 is a hardware configuration diagram of a small to medium size ATM (ATM: asynchronous transmission mode; hereinafter referred to as ATM) to which the present invention is applied.

2 is a block diagram showing a functional block of a small and medium ATM switching system according to the present invention.

3 is a flowchart of an originating main module for registering a reservation mode virtual path / channel connection in a small and medium ATM switching system according to the present invention.

4A to 4C are flowcharts of an outgoing side connection process for registering a reservation mode virtual path / channel connection in a small and medium ATM switching system according to the present invention.

5 is a flowchart of a called main module for registering a reservation mode virtual path / channel connection in a small and medium ATM switching system according to the present invention.

6 is a flowchart of a called party connection process for registering a reservation mode virtual path / channel connection in a small to medium ATM switching system according to the present invention;

* Explanation of symbols for main parts of the drawings

101: independent access system (ALS) 104: trunk line interface module (TIM)

105: subscriber interface module (SIM) 113: operation maintenance control block (OMCM)

201: Execution Control Block (ECF) 202: Output Control Block (OCF)

203: semi-fixed point-to-point virtual access block (SPVCF)

204: commercial network interface resource block (ULRHF)

205: network node matching interface connection resource block (NLRHF)

206: maintenance block (MF)

207: Subscriber interface module control block (SIMCF)

208: trunk line interface module control block (TIMCF)

209 Operator Interface (HMI) Terminal

The present invention relates to a reservation mode virtual path / channel connection registration device in a small and medium ATM switching system and a reservation mode virtual path / channel connection registration method using the same. Reserved mode virtual path / channel connection registration device and reserved mode virtual path / in the small / medium sized ATM switching system that allows the virtual interface / channel connection to be registered from the operator through the operator interface to provide the point leased line service. It relates to a channel connection registration method.

In general, many countries in the world are spurring the development of Asynchronous Transfer Mode (ATM) exchanges in order to speed up the implementation of broadband services and quickly provide services to real users. ATM virtual path / channel connection exchange system does not control subscriber according to service control protocol defined between subscriber and manganese, network and network, and uses fixed or reserved mode virtual path / channel connection using management plane function in system or network. To control.

Currently, the United Kingdom and Japan also provide virtual path (Virtual Path: VC) / Virtual Channel (VC) connection service in ATM switching system, but the control method in these systems is system It is difficult to control flexible virtual path / channel connection because service is provided by storing VP / VC connection information and routing information about subscribers in the system's control memory.

In addition, Korea's small ATM switching system, which is currently under development, provides a reservation mode leased line service in VP units, but only bidirectional symmetrical control occupies the bandwidth in both directions even if one-way or two-way asymmetric service is required. As the utilization of the link resources is low, the subscriber capacity of the system is significantly lowered, and in the case of the unidirectional direction, it is necessary to control the reverse direction, which takes unnecessary time.

Accordingly, the present invention provides a method for registering a causal path / channel connection during an operation of a system from an operator through an operator interface to provide a point-to-point leased line service at a reserved time in an ATM causal path / channel connection switching system. Through the system-operator interface, the system-operator interface can be registered at any time, and the service time, connection unit (virtual path / virtual channel), connection identifier, connection direction (unidirectional / bidirectional), bandwidth, etc. can be specified during registration. An object of the present invention is to provide a reservation mode virtual path / channel connection registration device and a reservation mode virtual path / channel connection registration method using the same in a small and medium ATM switching system that can solve one disadvantage.

The reservation mode virtual path / channel connection registration device in the small and medium ATM switching system according to the present invention for achieving the above object is a small and medium type consisting of an operation maintenance control module, a call control module, a subscriber interface module, a relay line interface module, and an operator interface terminal. An apparatus for registering a reservation mode virtual path / channel connection in an ATM system, comprising: an execution control block included in the operation maintenance control module and configured to process an operator input command by analyzing a command input by an operator; An output control block included in the module to output an output message and a system output message for a command input by the operator, and a semi-fixed point-to-point virtual connection included in the call control module to perform a point-to-point dedicated line control function. A block and included in the call control module, A user network matching interface connection resource block connected to a vertex-point virtual access block to manage a user network matching interface link and an internal link of the system, and included in the call control module, and connected to the semi-fixed point-to-point virtual access block. The semi-fixed point-to-point virtual virtual network node matching interface link resource block for managing a node matching interface link and a system internal link, and included in the call control module, and whether the user network matching interface link and the network node matching interface link are used. A maintenance block configured to notify the access block; a subscriber interface module control block configured to configure the subscriber interface module; and information transfer between an originating subscriber and a called subscriber; and the relay line interface module; Call forwarding Characterized in that between the trunk interface module configured to control block to enable the information transfer.

In addition, the reservation mode virtual path / channel connection registration method using the reservation mode virtual path / channel connection registration device in the small and medium ATM switching system for achieving the above object is the reservation mode virtual path / channel connection registration in the small and medium ATM switching system Receiving a reservation mode virtual path / channel connection registration request message requested by an operator from an operation maintenance control module in a central switching subsystem for connection registration of an originating main module for receiving the reservation mode virtual path / channel connection request; Creating and ending a process for sending a message, and in a call control module in an independent access system for connection registration of a called main module for registering a reservation mode virtual path / channel connection in the small and medium-sized ATM system. Example of operator request from semi-fixed point-to-point virtual access block Mode, the virtual path / receiving a channel connection request message, characterized in that consisting of the steps of the reserve mode virtual path / channel registration message to the connection ends by creating a called party connected to the child process a process for the called process.

According to the present invention, the operator may designate a service time while using the system in the small and medium ATM switching system, and may request the establishment of the dedicated line of the fixed mode or the reserved mode at any time.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a hardware configuration diagram of a small and medium ATM switching system to which the present invention is applied, which is distributed in units of an independent local switching subsystem (hereinafter referred to as ALS) 101 and is a central switching subsystem (ATM Central). switching subsystem (hereinafter referred to as an ACS) 102.

Each ALS 101 is an Access Switching Networking Module (hereinafter referred to as ASNM) 103 which performs link matching and ATM cell switching, and a relay line interface module which performs cell transmission and reception between a network and a node. (Trunk Interface Module: hereinafter referred to as TIM) (104), Subscriber Interface Module (hereinafter referred to as SIM) that performs cell transmission and reception between the subscriber and the network (105) (105), in the ALS 101 Each call control module (Access Switching Control Module, hereinafter referred to as an ASCM) 106 is configured to manage control and maintenance functions related to routing and connection processing.

The SIM 105 includes a high speed (155 Mbps) delivery board (hereinafter referred to as BSIH) 107 and a medium speed (44 Mbps) delivery board (hereinafter referred to as MSIH) 108 and a low speed (2 Mbps) delivery board (hereinafter referred to as "BSIH"). , LSIH).

The TIM 104 includes a 622 Mbps ultra high speed transmission board (hereinafter referred to as HTIH) 110 and a 155 Mbps high speed transmission board (hereinafter referred to as BTIH) 111.

Each ACS 102 is self-contained and maintained within the Interswitch Switching Networking Module (hereinafter referred to as ISNM) 112, which is used as an interconnector between the ASNMs 103 and the ACS 102. It consists of an Operation Maintenance Control Module (hereinafter referred to as OMCM) 113 that performs a system management (MA) function.

2 is a block diagram showing a functional block of a small and medium ATM switching system according to the present invention.

The execution control block (hereinafter referred to as ECF) 201 in the OMCM 113 that performs the operator interface analyzes the command input by the operator and inter-process communication corresponding to the input command to the corresponding processor. This is a block that processes operator input commands by sending messages.

The output control block (hereinafter referred to as OCF) 202 is a block for outputting an output message and a system output message for a command input by the operator to the operator terminal.

The semi-fixed point-to-point virtual access block (hereinafter referred to as SPVCF) 203 in the ASCM 106 module performing the point-to-point dedicated line control function is a call and connection control processor (hereinafter referred to as CCCP) in each ALS 101. Located in (not shown), a child process is generated for each of the messages received through the operator interface (hereinafter referred to as HMI) terminal 209, and each child process functions for that message. In order to perform the process, the function of setting, changing and releasing the point-to-point dedicated line according to the connection control scenario is handled.

The User Network Interface Interface (UNI) Connection Resource Block (hereinafter referred to as HLRHF) 204 is located within the CCCP of each ALS 101 and the User Network Interface Interface (hereinafter referred to as UNI) (not shown) links and system internals. The block that manages the link.

A network node matching interface (NNI) connection resource block (hereinafter referred to as NLRHF) 205 is located in the CCCP of each ALS 101 and manages network node matching interface (hereinafter referred to as NNI) link and system internal link. It is a block.

The maintenance block (hereinafter, referred to as MF) 206 is a block that informs the SPVCF block 203 whether to use a UNI / NNI link corresponding to a dedicated line to be set.

The subscriber interface module control block (hereinafter referred to as SIMCF) 207 in the subscriber interface module that performs the subscriber matching function is implemented with firmware of the subscriber link matching module, and transfers information for routing subscriber information from the SPVCF block 203. It receives and manages and attaches information for finding a routing path of a switch to a subscriber information cell so that information can be transmitted between the calling subscriber and the called subscriber.

The trunk line interface module control block (hereinafter referred to as TIMCF) 208 in the trunk line interface module that performs the trunk line matching function is mounted as firmware of the trunk line link matching module and transmits information for relay line information routing from the SPVCF block 203. Receives and manages and attaches routing information to the relay line information cell to find the routing path of the switch.

3 is a flowchart of an originating main module for registering a reservation mode virtual path / channel connection in a small to medium ATM switching system according to the present invention.

After receiving the reservation mode virtual path / channel connection request message requested by the operator from the OMCM 113 module from the start signal (301), generating a process for sending the reservation mode virtual path / channel connection request message (302). Will end.

4A to 4C are flowcharts of an originating side connection process for registering a reservation mode virtual path / channel connection in a small and medium ATM switching system according to the present invention.

The reservation mode virtual path / channel connection registration request input command and system state received from the OMCM 113 are checked from the start signal (401). The virtual path / channel connection registration (hereinafter referred to as VPI / VCI) numbers of the calling party and the called party can be designated by the operator or assigned inside the system. Thereafter, the reservation mode virtual path / channel connection registration request input command and the system check status are checked (402). If the result of the check in step 402 is not normal, that is, the connection of the VP unit, but the VCI number is specified, the process proceeds to step 422 of storing the cause of the input variable error.

If the result of the check in step 402 is normal, a message informing the OMCM block 113 to wait for the requested connection processing result is transmitted (403). Then, after calculating the number of cells per second and cell delay variation for user cell monitoring using the designated band value (404), check the bandwidth availability on the subscriber / relay line matching module interface link (405) and check whether the bandwidth usage is insufficient. (406). That is, in the case of a unidirectional leased line in step 406, the ULRHF block 204 checks whether there is a spare band acceptable for the service time specified for the requested bandwidth value of the requested leased line set in the called party (Rx) UNI / NNI link. In the case of a bidirectional leased line, the ULRHF block 204 checks whether there is a spare band acceptable for the service time specified for the requested bandwidth value set in the called / receiving side (Rx / Tx) UNI / NNI link. do.

In step 406, if a notification is received that there is no free band, the process proceeds to step 422 of storing a cause for notifying the required band shortage. If a notification is provided that there is a free band, after adding new connection information to the calling party database (407). Check whether the further insertion was successful (408). If an error occurs in the insertion result processing of the check in step 408, the process proceeds to step 422 of storing a cause for notifying that the DB cannot be processed. If the insertion process is successful, an incoming connection processing request including information necessary for connection registration is included. The message is sent to the main process in the SPVCF block 203 of the called CCCP processor (409). In operation 410, a call waiting timer for receiving a processing result from an incoming call function is entered (411).

When the reception process result is received in the reception processing waiting state 411 (413), it is checked whether or not it is normally received (412). If it is normally received as a result of step 412, request the main process to register the service reservation time (415), start the incoming call timer for receiving the reservation time registration result from the incoming function (416), and then reserve time registration processing. The result enters the waiting state (417). The main process that is requested to register the service reservation time is recorded in its own time management table, and registers a reservation time registration processing waiting timer with an operating system (OS).

When the registration processing result is received from the main process (419) in the waiting time registration processing result waiting state (417), it is checked whether or not it is normally registered (420). If it is not normally registered as a result of step 420, the process proceeds to step 422, and if normally registered, outputs a message informing the operator of the completion of connection registration, and terminates the calling party process to complete the normal state processing. . If, in step 417, the reception of the registration processing waiting expiration timer and a non-processing response are received from the main process (418), the process proceeds to step 422 of storing the cause of informing that the time processing is not possible.

On the other hand, if the incoming processing wait timer state is received in the incoming processing waiting state 411 (412), the process proceeds to step 422.

If abnormal causes are notified from step 402, step 406 and step 408 or step 412, step 414, step 418 and step 420, respectively, after storing the abnormal causes (422) In step 423, the reservation mode virtual path / channel connection registration failure is notified, and the calling party information is recovered (424). That is, the VPI / VCI number recorded in the ULRHF block 204 is deleted, and in the case of a unidirectional dedicated line, the band occupied by the called party (Rx) UNI / NNI link is allocated. Rx / Tx) The ULRHF block 204 is requested to release the band occupied in the UNI / NNI link before proceeding to step 425.

In step 425, it is determined whether the called party connection has failed or the incoming call has not been processed. If the called party connection failure or unreached at step 425, the process is terminated, and if the called party connection is successfully received and processed, the called party data recovery request message to the called party SPVCF block 203 to recover the called party data. Transmit (426). A request for registration of the called party information recovery wait timer is requested (427), and the receiver enters the called party recovery waiting state (428).

If the called party recovery process abnormal message is received from the called party SPVCF block 203 in step 428 (429), it is checked whether the number of recovery request confirmations is twice (431). If the result check in step 431 is not two, the process returns to step 426 for requesting the recovery of the called party information and repeats the above procedure. After that, the process ends (433).

On the other hand, if the receiving party recovery process normal completion message is received from the called party SPVCF block 203 during the waiting from step 428 (430), it is confirmed whether it has been recovered normally (432), and the called party data recovery fails if it is not normally recovered. After notifying the failure message (433), the process is terminated, and if it is recovered normally, the process is terminated immediately.

FIG. 5 is a flowchart of a destination main module for registering a reservation mode virtual path / channel connection in a small to medium ATM switching system according to the present invention.

Receives the reservation mode virtual path / channel connection request message requested by the operator from the originating SPVCF block 203 from the start signal (501), and generates an incoming process child process for receiving the reservation mode virtual path / channel connection registration; After 502, the process ends.

6 is a flowchart of a called party connection process for registering a reservation mode virtual path / channel connection in a small to medium ATM switching system according to the present invention.

The VPI / VCI check and allocation, system status check, and information storage function are performed from the start signal (601). That is, if the connection request information received from the originating function is a one-way service, only the availability of the calling party (Tx) UNI / NNI link (SIM / TIM → subscriber / switch node) of the called party requested for connection is checked. In the case of the bidirectional service, the availability of the source (Tx) link and the destination (Rx) UNI / NNI link (subscriber / switch node → SIM / TIM) is checked from the MF block 206. If the called party VPI or VPI / VCI is not specified on the operator input instruction, it is allocated from the ULRHF block 204, and if it is already specified, the availability of the specified value from the ULRHF block 204 is checked.

Thereafter, when the VPI / VCI value is determined, it is checked whether the connection is already registered on the database (602). That is, if an error occurs while performing the verification result of step 602, the cause of the abnormal state is stored (613), the calling party notifies the called party abnormal occurrence (614), and recorded in the ULRHF block 204 The called VPI / VCI number is deleted to recover the called party virtual connection information (615), and the current process is terminated.

If the verification of step 602 is performed normally, after calculating the number of cells per second and the cell delay variation for user cell monitoring using the designated band value (603), the bandwidth availability on the subscriber / relay line matching module interface link is checked. (604). That is, in the case of a unidirectional leased line, the ULRHF block 204 checks whether there is a spare band that can be accommodated at a specified service time with respect to a required bandwidth value of a set leased line in the Tx UNI / NNI link, The case checks from the ULRHF block 204 whether there is a free band acceptable at the service time specified for the required band value of the required leased line set in the originating / called party (Rx / Tx) UNI / NNI link.

After performing step 604, it is checked whether the result of the check is good (605). If the result is notified that there is no free band, the reason for notifying the required band is stored (613), and the calling party notifies the called party of an abnormal occurrence. After 614, the VPI / VCI number recorded in the ULRHF block 204 is deleted to recover the called party virtual connection information (615), and the current process is terminated.

If the result of the check in step 605 is notified that there is a free band, new connection information is added to the called party's database (606), and it is checked whether or not an insertion is abnormal (607).

If an error occurs in the process of inserting into the database in step 607, the cause for notifying the DB processing is stored (613), the caller is notified of an abnormal occurrence of the called party (614), and recorded in the ULRHF block 204. If the VPI / VCI number is deleted and the one-way dedicated line is occupied by the band occupied in the calling party's (Tx) UNI / NNI link, and in the case of the two-way dedicated line, it is occupied in the calling party's / called party's (Rx / Tx) UNI / NNI link The ULRHF block 204 is requested to release the existing band and the process ends (615).

If the insertion is successfully performed in step 607, the process waiting for the completion of the incoming processing in the calling party SPVCF block 203 is notified of the incoming processing completion message (608), and the called party according to the failure in the outgoing processing. After registering the wait timer to receive the process recovery request message (609), and enters the waiting (610), and receives the wait expiration timer registered in the waiting from step 610 (611), it means that the originating process was processed normally This terminates the current process. However, if the receiving party's data recovery request message is received from the calling party in step 610 during waiting, it means that the calling process has been processed abnormally, so that the VPI / VCI number recorded in the ULRHF block 204 is deleted and unidirectional. In case of a leased line, a ULRHF block is required to release a band occupied in the source (Tx) UNI / NNI link and in case of a bidirectional leased line, a band occupied in the originating / receiving side (Rx / Tx) UNI / NNI link is released. 204 and deletes the connection related information inserted in step 606 into the database and terminates the process (615).

On the other hand, the operator terminal input and output according to the reservation mode virtual path / channel connection registration is as follows.

1. Reserved mode virtual path / channel connection setup request input command type is

ADD-PSPC-RSVD: PRC = a, TYPE = b, ORIG = c, TERM = d, DR = e, BW = f, YMD = g, TM = h, EYMD = i, ETM = j; In this case, when the input content is described, a is a processor number on which an instruction is to be executed, and consists of a 6-digit string.

b: Designate whether it is a leased line of VP unit or VC unit.

c: Designate calling party ALS / IM / LINK, ALS / IM / LINK / VPI or ALS / IM / LINK / VPI / VCI.

d: Designates the called party ALS / IM / LINK, ALS / IM / LINK / VPI or ALS / IM / LINK / VPI / VCI.

e: Specifies whether one-way connection or two-way connection.

f: Parameter to designate required band, which is composed of long integer (unit: Kbps), one band value should be designated in one direction and two should be specified in bidirectional direction.

g: Specifies the start date of the service (year, month, day)

h: Specifies the service start time.

I: Specify the service end date.

j: Specifies the end time of the service.

2. After registering reserved mode dedicated line, the output type is

M4201 ADDITION OF POINT-TO-POINT VIRTUAL CONNECTION FOR RESERVED COMMUNICATION

RESULT = n

REASON = o (p)

TYPE = t

ORIG = ALSaa / INbb / LINKcc / VPIdddd / VCIeeeee

TERM = ALSaa / IMbb / LINKcc / VPIdddd / VCIeeeee

DR = k

BW = FWD 1 / BWD m Kbps

YMD = ffff.gg.hh TM = ii: jj

EYMD = ffff.gg.hh ETM = ii: jj

Here, when the output content is described, as a result of the leased line registration process for the operator input command for the reservation mode leased line request, a: ALS number is composed of an integer, and the range thereof varies depending on the system installation configuration.

b: SIM / TIM number consisting of integers. The range varies depending on the system installation configuration.

c: UNI / NNI link number, composed of integers. The range varies depending on the system installation configuration.

d: VPI number, consisting of integers, in the range 0-4095 recommended in ITU-T.

e: VCI number, composed of integers, in the range of 0 to 65535, as recommended by ITU-T.

k: Specify the direction of the connection (UDR: Unidirectional, BDR: Bidirectional)

l: Specifies the forward bandwidth, which is a constant value ranging from 1 to 138,000.

m: Specifies the reverse bandwidth, which is a constant value in the range of 1 to 138,000.

n: Result of registration request (OK, NOK)

o: Output about the cause of abnormal processing, the contents of which can be

NO RESPONSE FROM DESTINATION CCCP: No response from called party's Call and Connection Control Processor (CCCP).

NOT EQUIPPED DESTINATION CCCP: Not called CCCP.

NO RESPONSE FROM IMC: No response from IMC.

FAILURE OF ROUTING INFORMATION UPDATE: SIMC / TIMC's routing table cannot be updated.

NOT AVAILABLE IMI / UNI / NNI: Unable to establish a connection on the INI / UNI / NNI path.

FAILURE OF DB ACCESSS: Unable to process DB data.

OVER IMI LINK CONNECTION LIMIT: If the maximum number of connections on IMI is exceeded.

LACK OF BANDWIDTH ON IMI LINK: Insufficient IMI link bandwidth.

LACK OF BANDWIDTH ON UNI / NNI LINK: Insufficient UNI / NNI link bandwidth.

OVER UNI / NNI CONNECTION LIMI: The maximum number of connections possible on UNI / NNI is exceeded.

ALREADY REGISTERED CONNECTION: Connection already registered.

FAILURE OF TIMER REGISTRATION: Timer cannot be registered.

INPUT PARAMETER ERROR: Parameter error in the input command.

p: The side where the failure occurred (ORIGINATING SIDE, TERMINATING SIDE).

t: Unit of virtual path / channel connection (VP, VC).

As described above, according to the present invention, the following effects can be obtained.

1. Through the registration process for establishing a reservation mode point-to-point leased line in a small and medium ATM switch, the operator registers the connection from time to time during system operation, and the connection is established by the system itself during the reserved service time. Receive the type of service you want.

2. When registering, the operator can select the unit of connection (VP, VC) arbitrarily, and can designate VPI / VCI of originating party and destination party, VCI can be assigned from the system only by specifying VPI, and VPI and VCI can be assigned. All of them could be assigned, giving flexibility in specifying connection identifiers.

3. It is possible to select whether to provide one-way or two-way service, and to arbitrarily designate bandwidth and service reservation time to provide a basis for supporting various services required by the subscriber.

4. This function can set connection in units of VP and VC according to the request of the operator. By controlling the one-way control separately from the one with the reverse bandwidth of 0 in both directions, connection processing time and unnecessary abnormal connection processing are generated as a whole. You can prevent it. Therefore, resources can be used more efficiently to accommodate more subscribers.

5. Reserved Mode One-way control provides the basis for developing various network services such as various point-to-multipoint service functions in future high-speed ATM switching system.

6. The modularity of the program has been improved by separating the function used in the SPVCF block from the SPVCF block to the other block (ULRHF) in the conventional small ATM exchange to improve the modularity of the program. In order to support medium to low speed service and trunk line service between subscribers matched with subscriber link of 155/44/2 Mbps and relay line link of 622/155 Mbps, the link identifier is ALS number, IM number, LINK number, and VPI number. In the case of the dedicated line of the VC unit, the service is also provided to the medium and low speed subscriber (MSIM / LSIM) and the trunk line node (HTIM / BTIM) by using the VCI number.

Claims (8)

A reservation mode virtual path / channel connection registration device in a small to medium-sized ATM switching system including an operation maintenance control module, a call control module, a subscriber interface module, a trunk line interface module, and an operator interface terminal, which is included in the operation maintenance control module, An execution control block for analyzing a command input by an operator to process an operator input command, an output control block included in the operation maintenance control module and outputting an output message and a system output message for the command input by the operator; And a semi-fixed point-to-point virtual access block included in the call control module and performing a point-to-point dedicated line control function, and included in the call control module and connected to the semi-fixed point-to-point virtual access block. Network for managing system and system internal links An interface connection resource block, a network node matching interface connection resource block included in the call control module and connected to the semi-fixed point-to-point virtual access block to manage a network node matching interface link and a system internal link, and the call control module And a maintenance block configured to notify the semi-fixed point-to-point virtual access block whether the user network matching interface link and the network node matching interface link are used, and configured the subscriber interface module. Small and medium A comprising a subscriber interface module control block for enabling information transfer between the relay line interface module, and a relay line interface module control block for transmitting information between the called subscribers of the calling subscriber. Device for registering a reservation mode virtual path / channel connection in a TEM switching system. 2. The apparatus of claim 1, wherein the execution control block is configured to transmit an inter-process communication message corresponding to an instruction input to the corresponding processor. 3. The connection control scenario of claim 1, wherein the user network matching interface connection resource block generates child processes for each of the messages received through an operator interface terminal, and each child process performs a connection control scenario to perform a function on the corresponding message. The reservation mode virtual path / channel connection registration device in the small and medium ATM switching system, characterized in that configured to handle the function of setting, changing, and releasing the point-to-point dedicated line. The subscriber interface module control block is implemented by firmware of a subscriber link matching module. The subscriber interface module control block receives and manages information for routing subscriber information from a semi-fixed point-to-point virtual access block, and manages routing of switches to subscriber information cells. The reservation mode virtual path / channel connection registration device in the small and medium ATM switching system, characterized in that configured to enable the transfer of information between the calling subscriber and the called subscriber by attaching information to find the route. The relay line interface module control block of claim 1, wherein the relay line interface module control block is mounted as firmware of a relay line link matching module, receives and manages information for relay line information routing from a semi-fixed point-to-point virtual access block, and controls routing of the switch to the relay line information cell. Reservation mode virtual path / channel connection registration device in the small and medium ATM switching system, characterized in that configured to enable the transfer of information between the originating subscriber and the destination subscriber by attaching routing information to find the route. Receiving a reservation mode virtual path / channel connection registration request message requested by an operator from an operation maintenance control module for connection registration of a calling main module for registering a reservation mode virtual path / channel connection in a small and medium-sized ATM system; Creating and ending a process for sending the reservation mode virtual path / channel connection request message and for registering connection of a called-side menning module for registration of a reservation mode virtual path / channel connection in the small and medium-sized ATM switching system. Receiving a reservation mode virtual path / channel connection request message requested by an operator from a semi-fixed point-to-point virtual access block in the call control module; and a called party connection processing child for receiving the reservation mode virtual path / channel connection registration message; After the process is created and terminated A medium-sized TM exchange system reserve mode virtual path / channel connection with the registration device reserve mode virtual path / channel connections registered at that. The method according to claim 6, wherein the originating method for registering a reservation mode virtual path / channel connection in the small to medium-sized ATM switching system comprises: a reservation mode virtual path / channel connection registration request input command and a system state received from an operation maintenance control module; Checks and transmits a message to store the cause of the input variable error or waits for the requested connection result to the operation control module according to the result, and to monitor the user cell using the specified band value. Calculating the number and cell delay variation, checking the bandwidth availability on the subscriber / relay line matching module interface link, checking whether there is insufficient bandwidth, and storing the reason for notifying the required bandwidth shortage accordingly as a result or in the calling database. Adding new connection information and inserting into the database Storing the cause notifying that the database cannot be processed or transmitting an incoming connection processing request message including information necessary for connection registration to the main process according to the result of checking the connection information, and receiving the incoming processing registration result from the called party. Operating the incoming result wait timer and entering a standby state; storing a cause for receiving an incoming call waiting expire timer when the incoming call waiting result is received and notifying time processing of the incoming call waiting result; Confirming that the incoming processing result has been received and received normally, and storing the cause of the abnormal processing result or requesting a service reservation time registration to the main process according to the result, and receiving the reservation time registration result from the incoming processing function; Reservation time registration Operating the wait result waiting timer and entering a standby state, storing a cause of receiving the registration processing wait timer from the menning process indicating that the time cannot be processed while waiting for the reservation time registration processing result; Checking whether the registration processing result is received from the main process while waiting for the result, and confirming whether the registration has been successfully registered, and saving a cause for notifying registration error or outputting a message notifying the operator of the completion of connection registration, and ending the calling party process. And notifying the calling party of a reservation mode virtual path / channel connection registration failure from the storing of the respective abnormal causes, and recovering the calling party information and confirming whether the called party has failed or did not process the incoming call; Depending on whether the pro Terminating or sending a data recovery request message from the called party, entering a called party recovery waiting state for which the called party information recovery wait timer registration is requested, and from the called party to the called party information recovery waiting. When the recovery wait timer message is received, it is confirmed whether the number of recovery request confirmations is determined, and accordingly, the process returns to the step of requesting recovery of the called party information and repeats the above process or notifies the called party data recovery failure failure message. Terminating the post-process and checking whether the receiving party's recovery result has been normally recovered from the called party during the recovery of the called party's information, and notifying the receiving party's data recovery failure failure message accordingly as a result. To immediately end the process A reservation mode virtual path / channel connection registration method using a reservation mode virtual path / channel connection registration device in a small and medium-sized ATM switching system. The method according to claim 6, wherein the called party connection processing method for registering a reservation mode virtual path / channel connection in the small and medium ATM switching system comprises: checking and assigning a virtual path / channel connection from the calling party to the called party from the calling party; After performing each storage function, check the result of the check and save the cause of the abnormal condition according to the result, and notify the calling party the occurrence of abnormal status to the calling party, and then the virtual path / recorded in the user interface matching interface connection resource block Restoring the virtual connection information of the called party by deleting the channel connection number and ending the process; and counting the number of cells per second for monitoring the user cell by using the band value designated according to the virtual path / channel connection check result at the called party; Calculating cell delay variation and checking bandwidth availability on subscriber / relay line matching module link After confirming the result, and storing the cause for notifying the required band shortage according to the bandwidth availability check result on the subscriber / relay line matching module interface link, and notifying the caller abnormal occurrence to the calling party, the user network matching interface Recovering the called party's connection information by deleting the virtual path / channel connection number recorded in the connected resource block and terminating the process; and depending on a result of checking bandwidth availability on the subscriber / relay line matching module interface link, the called party Adding new connection information to the database and checking for abnormalities; and storing cause for notifying that the database cannot be processed according to the insertion result of the connection information stored in the destination database; User interface matching interface Recovering the called party virtual connection information by deleting the virtual path / channel connection number recorded in the connection resource block, terminating the process, and semi-fixing the calling party according to the insertion result of the connection information stored in the called party database. Notifying the incoming processing completion message to the process waiting for completion of the incoming processing in the point-to-point virtual access block; And terminating the process by receiving a waiting expiration timer registered while waiting for reception of the called party processing recovery request message; and receiving a called party data recovery request message from the calling party while waiting for receiving the called party processing recovery request message. Insert database connection information into The reservation mode virtual path / channel connection registration method using the reservation mode virtual path / channel connection registration device in the small and medium ATM switching system characterized in that the step of deleting the connection-related information inserted in the system.