KR19980050155A - How to manage switch link shape of ATM switch - Google Patents

Abstract

Switch link links of switches due to the addition of subscribers and services that occur during operation in distributed switching systems such as ATM switching systems. A switch connection link shape management method for efficiently changing the connection shape of a switch link resource when a connection is required. This method manages the mounting information of a switch and expresses the switch number and the mounted / unmounted information of the switch. Switch configuration information composed of switch mounting information, matching module number accommodated in the subsystem, whether or not to be mounted / unmounted, and matching circuit type classified according to whether the matching circuit type is SIM or TIM and transmission speed Matching configuration information consisting of the contents of the upper layer Switch link link of the ATM exchange which forms the horizontal link for the internal message communication to the matching unit with the channel configuration information that manages the switch port number as a path for communication in the exchange. In the configuration management method, the step of adding subscribers and services and the step of deleting the subscribers and services are performed as necessary.

Description

A method of management of switch link configuration in atm switching system

The present invention relates to an ATM switch, and in particular, it is easy to change the hardware configuration of the switch connection link due to the addition of subscribers and services.

The present invention relates to an ATM switch switch link link reconfiguration method that does not cause interruption of service in adding / deleting switch link link hardware to a switch function.

Conventionally, the reconfiguration process of the switch switching link hardware and functions according to the increase of the exchange service is carried out in a redundant operation of the exchange operated after the generation of the switching center data reconstructing all the switch connection information inside the exchange in the Kim computer system outside the exchange. In the processor requiring the switch connection link shape, the processor in the inactive state was loaded with the new exchange station data and all the functions of the program, and then the processor was switched.

Therefore, it was necessary to carry out additional work to apply the service data already in operation and to the exchange office data produced externally and vertically, regardless of the amount of expansion.

In addition, such a shape change procedure has a possibility of causing an interruption of the exchange service due to a failure that may occur during the ablation operation of the processor. In addition, an external shape change operation by a manual operation in which a rule is not applied to the hierarchical relationship of the shape information has a problem of increasing the inconsistency between the switch hardware-related shape information of the exchanger.

The present invention for solving the problems according to the prior art as described above in the switch connection link shape by the internal function without the external work when changing the switch switch link link shape according to the increase in capacity that occurs during the exchange operation The purpose is to provide a method for reconstructing.

One aspect of the present invention for achieving the above object is in the switch connection link shape management method of the ATM switch, for managing the mounting information of the switch and for the switch mounting to express the number of the switch and the mounting / unmounted information of the switch The switch configuration information consists of the contents and the number of matching modules accommodated in the subsystem, whether or not mounting / unmounted, and whether the type of matching circuit is SIM or black or TIM, and the types of matching sections classified according to the transmission speed. The switch link configuration information is formed by using the configured matcher configuration information as a higher layer, and the horizontal relationship for the internal message communication to the matcher with the channel configuration information managing the switch port number as a path for communication in the exchange. In the switch connection link shape management method of the AT switch to form a subscriber, the subscriber and service A characterized in that it performs the steps necessary to delete the subscriber and service and adding.

In the above method, the adding of the subscriber and the service may include receiving a switch link addition request at the same time as starting the process, and switching request addition request with an AIS subsystem number and AIS. A first step of inputting an ASNM switch port number therein and a matching unit number to be connected to the switch port or a number of ISNM which is a central switch and a switch port in the ISNM; If the AIS is not mounted, the AIS processor does not operate normally, both the matching port number and the ISNM are entered as a target to which the switch port is connected, and additional switch link assignment is impossible if the port number of the ISNM is not assignable. A second step of notifying the first step; If the AIS is installed, the AIS processor is operating normally, and the matching port number and ISNM are not entered as the target to which the switch port is connected, and the port number of the ASNM can be assigned, the connection target of the ASNM port is the matching unit or ISNM. A third step of checking authorization; If the connection target of the ASNM port is the matching unit in step 3, the matching unit is mounted, and if the matching unit is already connected to another ASNM port, if the matching unit is not mounted and connected to another ASNM port, the switch A fourth step of notifying the first step of non-link addition allocation; In the fourth step, if the matching unit is mounted and the matching unit is not connected to another ASNM, the switch link configuration information changes the information corresponding to the ASNM port. The switch port mounting is the mounting and the type of the switch port is the matching port. In order to generate new additional information of the switch link, the matching link number of the switch link connection information is assigned, and the communication path configuration information for internal communication between the matching unit and the processor is changed after the switch link configuration information is changed. A fifth step of allocating the ASNM port inputted to the first switch port for the matching unit, and notifying the operating system that the channel configuration information has been changed after the channel configuration information is changed; In the fourth step, if the connection target of the ASNM port is ISNM, it is checked whether the ISNM port is mounted and the ISNM port number is assignable, and if the ISIM port is not mounted and the ISNM port number is not assignable, additional switch link assignment is impossible. A sixth step of notifying the first step; In the sixth step, if the ISNM is mounted and the ISNM port bundle is assignable, the target is the ISNM. When the switch link configuration information is changed, the switch port is implemented, the port type is ISNM, and the central switch number is inputted. A seventh step of allocating the received ISNM number and assigning the input ISNM port number to the central switch port to generate new connection information of the corresponding ASNM; And a switch link shape addition program comprising an eighth step of notifying step S1 of the completion of the switch connection shape addition when the switch link connection information and the communication path connection information related to the switch connection are completed.

The deleting of the subscriber and the service may be repeated indefinitely at the same time as the process is started, receiving a switch link deletion request, and in the switch link deletion request, an AIS number and an ASNM port number of the switch link to be deleted of the AIS are entered; A second step of notifying the first step of the inability to assign the switch link deletion if the input AIS subsystem is not mounted and the operating state of the processor is not normal; A third step of notifying the first step of non-switchable switch link assignment if the ASNM port is already deleted, the linking type of the deleted link is an ISNM type, for internal messages, and the link to be deleted is a currently serving link; If the AIS is mounted in the second step, the process operation is normal, the ASNM port is not deleted in the third step, the ISNM type is not for internal messages, and the link is isolated if the link is not in service. A fourth step of notifying the first step of the non-isolating switch link deletion assignment if it is not in isolation;

A fifth step of checking whether the port type is a matching port if the corresponding link is isolated in the fourth step; If the type of the port is not the matching port in the fifth step, the switch port implementation is not implemented in changing the information corresponding to the ASNM port in the switch link configuration information. When the change of the switch link configuration information is completed, the switch connection shape is completed. A sixth step of notifying step 1 of being deleted;

If the port type is the matching port in step 5, the information on the matching part is deleted from the communication channel configuration information, the operating system is notified of the change of the communication channel configuration information, and when the change of the switch link configuration information is completed. And a seventh step of informing the first step that the switch connection shape has been deleted.

Accordingly, the present invention can reconfigure the switch connection link shape by an internal function without changing externally when the switch switch link link shape is changed due to the increase in capacity generated during the exchange operation.

To this end, we propose an internal shape change method to establish a system of information construction methods to maintain consistency between shape information and malfunction of internal functions due to loss of relationship between shape information that may occur when the switch shape of the exchange is changed. We present the function to add / delete the shape of the switch connection link to prevent it.

In addition, each of the exchange resources that execute the exchange function is related to each other and hierarchical characteristics by the functional characteristics, it can be used to establish the functional flow of the initial configuration and reconfiguration of the exchange switch link link shape.

This established functional configuration provides a technical basis to secure efficiency and stability when reconfiguring switch switch link link hardware resources.

1 is a system structural diagram of an ATM switch.

2 is a switch connection block diagram of an ATM switch.

3 is a configuration diagram of switch connection shape information of an ATM switch;

4 is a diagram illustrating a switch connection shape of an ATM exchanger;

5 is a further flow diagram of a switch connection link shape of an ATM switch.

6 is a flow diagram of a switch connection link deletion of an ATM switch.

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

The present invention provides a system architecture and each subsystem in which a switch for ATM exchange is a distributed system in which a switch (ASNM) is distributed around a central switch (ISNM) and a processor is mounted to control an exchange function based on each switch. It is configured based on the switch connection shape that establishes the data transmission path between the switches located.

The switch part hardware shape information and the switch connection link shape information are located in the CCCP (Call and Connection Control Processor) of the subsystem in charge of the switch connection. It is provided as the basis for the operation of the switch connection link function.

A hierarchical relationship and a functional relationship are established between the switch shape information and the function shape of the switch connection link, so that call processing and operation maintenance functions operate. This hierarchical and functional relationship adds up to the

This relationship should be maintained in addition to establishing relationships and methods of configuration management functions, such as the addition and deletion of switch link links.

1 is a structural diagram of an ATM switching system applied to the present invention.

The ATM switching system 100 according to FIG. 1 is composed of a plurality of distributed AIS (ATM Local Switching Subsystem) 3 and an ATM Central Switching Subsystem (ACS) 4. do.

The subscriber switching subsystem (3) incorporates an Access Switching Network Module (ASNM) 7, which is a local switch module, and a Call and Connection Control Processor (CCCP) (8) for user call processing and maintenance. Is implemented to handle functions including call services, and includes a subscriber interface module (SIM) 5 for subscriber matching and a trunk interface module (TIM) 11 for relay call matching.

The AIS 4 then operates as a concentrating device having a concentrating ratio of n: m where the number of user-side links 6 is n and the number of switch-side links 9 is m, and the ACS operates the interconnection function between subscriber AISs. And acts as a dispensing device for large capacity systems.

Call requests from subscribers are routed into the subsystem via subscriber link 1 connected to SIM 5 and the relay call is acknowledged to the subsystem via trunk line link 2.

The ACS 4 is responsible for the connection and operation maintenance functions between the AIS (3), the ACS implements the ISNT (Internation Switch Network Module) (12) responsible for the connection between the AIS. In the ACS 4, OMP (Operation and Maintenance Processor 13) is installed to maintain the operation of the entire system.It performs system-level maintenance, test, measurement and statistics functions as well as various input / output statement control functions with the operator. do.

The status information and the operation information of the exchange are output in text or graphics, and a workstation which is responsible for providing an interface with the user and visualizing the information is connected to the exchange system to the operating system 15, and the connection protocol is Ethernet (Ether). Net) 14 is used.

2 is an example of a switch connection diagram of an ATM switch of the present invention.

One switch memory link board (SMLA) accommodates 16 ports.

Figure 2 shows an example of switch number allocation of ALS00. Ports 0, 1, 8, and 9 of SMLA 0 (16) of ASNM are 0, 1, 2, 3 of SMLA 0 (18) of ISNM0, which is the central switch. Ports 2, 3, 10 and 11 of SMLA 0 (16) are connected to ports 16, 17, 18 and 19 of SMLA 1 (19) of ISNM0. Ports 16 to 29 of SMLA 1 (17) of the ASNM are connected to the matching circuit, and port 31 is connected to the CCCP (8). In the case of ALS01, ports 0, 1, 8, and 9 of SMLA 0 (20) of ASNM are connected to ports 4, 5, 6, and 7 of SMLA 0 (18) of ISNM0, which is the central switch. , Ports 2, 3, 10, and 11 are connected to ports 20, 21, 22, and 23 of SMLA 1 (19) of ISNM0. Ports 16 to 29 of No. 21 of the SMLA of ASNM in ALSO1 are connected to the matching circuit and port 31 is connected to CCCP (S).

The information about the port connection between the ASNM and the ISNM and the connection with the matching unit as shown in the example of FIG. 2 is managed as shape information, and this information is required to switch switch function and switch connection function in charge of the switch function. Managed.

3 is a configuration diagram of the switch connection shape information of the ATM switch of the present invention.

In the OMP 22 of the ACS, communication path configuration information 25 for internal message communication with a subsystem is located. In the ALS 23 and 24, communication path configuration information 25 for message communication with another subsystem, configuration information 26 of a switch, configuration information 27 of a matching part, and switch link configuration information 28 are located. .

Channel configuration information is output from the switch port for passing messages from processors such as 0MP (13) or CCCP (8) in the subsystem to other subsystems' processors or matching modules, SIM and TIM (5,11). Information that manages the port.

Therefore, an internal communication network is formed through up to three switches.

In Fig. 1, only the output port 6 of the ASNM 7 is required because the CCCP 8 can transmit the message through the switch of the ASNM 7 in order to deliver the message to the SIM 5. In order to forward messages from CCCP (8) to another CCCP, the first switch port (9) output from the ASNM (7) to the ISNM (12) must be known, and again from the ISNM (12) to the ASNM of the AIS in which the other CCCP is mounted. The second switch port information to be connected must be known and the third switch port number to which the counterpart CCCP 8 is connected at the ASNM (7) of the counterpart AIS (3).

In this way, it is the communication path configuration information 25 that manages the switch port number to the destination. The switch configuration information 26 manages the mounting information of the switch, and is composed of the contents of the switch implementation representing the switch number and the mounted / unmounted information of the switch. This switch shape is used as basic information of the state management of the switch. The matching unit configuration information 27 includes the number of matching modules and whether or not to be mounted / unmounted and whether the matching circuit name is SIM or TIM, and matching type divided according to the transmission speed. It is composed. The switch link configuration information (28) shows the port number of the switch, whether or not the switch port is mounted / unmounted, the type of usage of the port, and the connected matching port number when the port is connected to the matching port, and whether the switch port is connected to ISNM. In this case, it consists of a central switch number representing an ISNM number and a central switch port number representing a connection port of the corresponding ISNM. This switch link configuration information is used as basic information of the call processing function.

4 is a diagram illustrating a switch connection shape of the ATM switch of the present invention.

The switch connection configuration managed in the switch link configuration information 28 exists as a lower layer of the two configurations in which the switch configuration information 26 and the matching configuration information 27 are subordinate, but the communication path configuration information 25 of the subsystem is present. Has a horizontal relationship since the switch port connected to the matching part is used for internal message transfer between the processor and the matching part.

5 is a further flowchart of a switch connection link shape of an ATM switch.

Referring to Figure 5 describes the progress of the switch connection link shape addition program of the ATM switch of the present invention as follows.

First, in step S1, a process of infinitely repeating at the same time as the start of the process is received, the switch link addition request is input, and the switch link addition request is inputted with the AIS subsystem number and the ASNM switch port number in the AIS, and the matching part number to be connected to the switch port is inputted. Alternatively, the number of the central switch ISNM and the switch port in the ISNM are input. Subsequently, in step S2, if the AIS is not mounted ALS, it is notified that additional allocation of the switch link is impossible in step S3. If the ALS is implemented, proceed to step S4. If the processor of the ALS does not operate normally, add the switch link in step S3. If the AIS processor operates normally, if the AIS processor operates normally, proceed to step S5 to check whether the matching port number and ISNM have been input to the target connected to the switch port, and if so, go to step S3 to assign additional switch links. If not, it is checked, and if it is not entered, in step S6, it is checked whether the ASW port number can be assigned as if the ASNM port number belongs to an unimplemented SMLA or the ASNM port is already in use. If not, proceed to Step S3 to confirm that additional switch link assignment is not possible. If step S1 is notified and the allocation is possible, in step S7, the connection target of the ASNM port is checked whether it is a matching unit or an ISNM. If it is a matching unit, it is checked in step S8 whether the corresponding matching unit is mounted, and if not, the process proceeds to step S3. Step S1 notifies the step S1 that the switch link addition assignment is not possible. In step S9, it checks whether another matching ASNM port is already connected to the matching part, and if so, proceeds to step S3. If not, S1 is notified, and in step S10, if the connection target of the port is a matching part, the information corresponding to the ASNM port is changed in the switch link configuration information. The switch port mounting is implementation, and the type of the switch port is the matching port. The matching link number of the switch link connection information is assigned to the matching link number. Create new additional information, and in step S11, after changing the switch connection configuration information, change the ASNM port inputted to the first switch port for the matching unit in changing the communication path configuration information for internal communication between the matching unit and the processor. After the communication channel configuration information is changed in step S12, the OS (Operating System) is notified that the communication channel configuration information has been changed, and the flow proceeds to step S16 to switch link connection information and communication path connection information related to the switch connection. When the change of, etc. is completed, the step S1 is notified that the addition of the switch connection shape is completed, and the procedure of adding a new switch connection shape is completed.

If the connection target of the ASNM port is ISNM in step S7, if the target to which the ASNM port is connected is the central switch in step S13, it is checked whether the target ISNM is mounted. If step S1 is notified, and if it is implemented, it is checked in step S14 whether the port of ISNM is out of range or is not suitable for connection, such as a port that is already assigned another connection. If not, proceed to step S3 to add a switch link. Notify step S1 that the assignment is not possible. If appropriate, change the switch link configuration information if the target is ISNM in step S15. The switch port is implemented, the port type is ISNM, and the ISNM entered in the central switch number. Assign a number, and enter the ISNM port number After allocating a call and generating new connection information of the corresponding ASNM, the flow proceeds to step S16 when the switch link connection information and the communication path connection information related to the switch connection are completed. The notification terminates the procedure for adding a new switch connection.

Fig. 6 is a flow diagram of a deletion of a switch connection link shape of an ATM exchange of the present invention.

Referring to Figure 6, the switch connection link shape deletion program progress state of the ATM switch according to the present invention will be described.

First, a process of starting a process is repeated indefinitely and a switch link deletion request is received in step S111. The switch link deletion request is inputted with an ALS number and an ASNM port number of a switch link to be deleted. Subsequently, it is checked whether the AIS subsystem input in step S112 is a mounted and operating system, and if it is not a mounted and operating subsystem, the flow advances to step S113 to notify step S111 of the inability to assign switch link deletion and to operate. If it is a sub system, in step S114, it is checked whether the state of the processor of the AIS is normal, and if it is not normal, the process proceeds to step S3, and notifies step S111 of the switch link deletion allocation block, and if normal, the link in which the ASNM port has already been deleted in step S115. If the link is deleted by checking the authorization, go to Step S113 to notify Step S111 that the switch link deletion assignment is not possible. If not, in Step S116, the connection type of the deleted link is ISNM type and used for internal messages. If it is used for internal messages, proceed to step S113. If it is not used for the internal message, in step S117, it is checked whether the link to be deleted is currently in service, and if the link is in service, the process goes to step S113 and switch link deletion cannot be assigned. Is not in service, and in step S118, if the link to be deleted is not in service but is in service isolation, if not, proceed to step S113 to notify step S111 that switch link deletion assignment is not possible. If it is in isolation, in step S119, it is checked whether the port type of the link to be deleted is a matching port, and if it is not the matching port, in step S122, the switch port implementation is not changed in changing the information corresponding to the ASNM port in the switch link configuration information. After mounting, the switch link configuration information is changed in step S123. And to notify the switch that the step-shaped connection has been deleted S111 complete the switch connection link shape removed of the present invention when done.

If the port type of the link to be deleted in step S119 is a matching port, in step S120, information about the matching unit is deleted from the communication channel configuration information, and in step S121, the operating system is notified of the change of the communication channel configuration information. When the change of the switch link configuration information is completed in step S123, the step S111 is notified that the switch connection shape has been deleted, and the deletion of the switch connection link shape of the present invention is completed.

The present invention secures a resource management method for the switch connection link shape of each subsystem according to the distributed switch function constituting the exchange, and the loss caused by the interruption of service when the switch connection link shape is reconfigured. It eliminates the shape information work step of, prevents mismatch of each shape information according to the change of the shape of the switch connection link, and provides flexibility and convenience in reconstructing the shape.

The present invention provides a switch connection link when a hardware configuration of the switch connection link is required due to the addition of subscribers and services that occur during operation in a distributed switching system such as an ATM (Asyncronous Transfer Mode: ATM) switching system. As the change proceeds efficiently and the switch connection link hardware is added / deleted to the shape of the exchange function, which is being serviced in the past, the hierarchical relationship between the functional shape information and the physical hardware shape information is maintained, An object of the present invention is to provide a method for reconfiguring an ATM switch switch link link that does not cause interruption.

Claims (6)

It manages switch mounting information and consists of the switch configuration information consisting of the switch number representing the switch number and the mounted / unmounted information of the switch, the number of matching module modules and whether or not to be mounted / unmounted. The switch link configuration information is formed by using the matching component configuration information composed of the matching component types classified according to whether the matching circuit is a SIM or a TIM and the transmission speed as a higher layer, but as a path for communication in the exchange. In the switch connection link configuration management method of the ATM switch to form a horizontal relationship for the internal message communication to the matching unit and the communication channel configuration information for managing the switch port number, A method for managing a switched connection shape of an ATM switch, comprising: adding a subscriber and a service; and deleting the subscriber and the service, as necessary. The method of claim 1, wherein The step of adding the subscriber and the service receives the switch link addition request at the same time as the process is started, and the switch link addition request is inputted with the AIS subsystem number and the ASNM switch port number in the AIS and the matching part number to be connected to the switch port. A first step of inputting a number of the ISNM which is a central switch or a central switch and a switch port in the ISNM; If the AIS is not mounted, the AIS processor does not operate normally, both the matching port number and the ISNM are entered as the target to which the switch port is connected, and additional switch link assignment is not possible unless the port bundle of the ASNM is assignable. A second step of notifying the first step; If the AIS is installed, the AIS processor is operating normally, and the matching port number and ISNM are not entered as the target to which the switch port is connected, and the port number of the ASNM is assignable, the connecting target of the ASNM port is the matching unit or ISNM. A third step of checking authorization; In the third step, if the connection target of the ASNM port is a matching unit, if the matching unit is mounted, and if the matching unit is already connected to another ASNM port, the matching unit is not mounted and is connected to another ASNM port, the switch A fourth step of notifying the first step of non-link addition allocation; In the fourth step, if the matching unit is mounted and the matching unit is not connected to another ASNM, the switch link configuration information changes the information corresponding to the ASNM port. The switch port mounting is the mounting and the type of the switch port is the matching port. In addition, the matching part number of the switch link connection information is allocated to generate the new additional information of the switch link by inputting the matching part number, and after the change of the switch connection configuration information, the communication path configuration information for the internal communication between the matching part and the processor A fifth step of allocating the ASNM port inputted to the first switch port for the matching unit, and notifying the operating system that the channel configuration information has been changed after the channel configuration information is changed; In the fourth step, if the connection target of the ASNM port is ISNM, it is checked whether the ISNM port is mounted and the ISIM port number is assignable. If the ISNM port is not mounted and the ISNM port number is not assignable, additional switch link assignment is not possible. A sixth step of notifying the first step; In the sixth step, if the ISNM is mounted and the ISNM port number is assignable, if the target is ISNM, the switch port is set to the mounting port, the port type is ISNM, and the central switch number is inputted. A seventh step of allocating the received ISNM number and assigning the input ISNM port number to the central switch port to generate new connection information of the corresponding ASNM; And a switch link shape addition program comprising an eighth step of notifying the first step that addition of the switch connection shape is completed when the switch link connection information and the communication path connection information related to the switch connection are completed. Method for managing the shape of the switch connection link of the TEM exchanger. The method of claim 2, wherein the second step is a step of checking whether the AIS is mounted, a step of checking whether the processor of the AIS is operating in a normal state, and checking whether both the matching unit number and the ISNM are input to the object to which the switch port is connected. ATM exchange step is performed in order to check whether the ASNM port number can be assigned, such as when the ASNM port number belongs to an SMLA that is not implemented or the ASNM port is already in use. To manage the shape of the switch connection links. 2. The method of claim 1, wherein the deleting of the subscriber and the service receives a switch link deletion request while repeating infinitely at the same time as the process is started, and the ASN number and the ASNM port number of the switch link to be deleted of the AIS are input to the squelch link deletion request. A first step of becoming; A second step of notifying the first step of the inability to assign the switch link deletion if the input ALS subsystem is not mounted and the operation state of the processor is not normal; A third step of notifying the first step of non-switchable switch link assignment if the ASNM port is already deleted, the connection type of the deleted link is an ISNM type, an internal message, and the link to be deleted is a currently serving link; If the AIS is implemented in the second step, the process operation is normal and the ASNM port is not deleted in the third step, the ISNM type and not for internal messages, and the link is not in service, the link is isolated. A fourth step of notifying the first step of the non-isolating switch link deletion assignment if it is not in isolation; A fifth step of checking whether the port type is a matching port if the corresponding link is isolated in the fourth step; If the type of the port is not the matching port in step 5, the switch port configuration is not implemented in changing the information corresponding to the ASNM port in the switch link configuration information, and when the change of the switch link configuration information is completed, the switch connection shape is completed. A sixth step of notifying the first step of being deleted; If the port type is the matching port in step 5, the information on the matching part is deleted from the communication channel configuration information, the operating system is notified of the change of the communication channel configuration information, and when the change of the switch link configuration information is completed. And a switch connection link shape deletion program comprising a seventh step of notifying the first step that the switch connection shape has been deleted. 5. The switch connection link of claim 4, wherein the second step includes checking whether an input AIS subsystem is mounted and checking whether an operation state of a processor is normal. Configuration management method. The method of claim 4, wherein The third step consists of checking whether the ASNM port is already deleted, checking whether the connection type of the deleted link is an ISNM type and for internal messages, and checking whether the link to be deleted is currently in service. Switch connection link configuration management method of the AMT switch.