KR100256681B1 - Method for process bidirectional login in sdh - Google Patents

Abstract

PURPOSE: A method for processing bilateral remote registration in a synchronous transmission network is provided to supply service of the remote registration between synchronous transmission units in the network. CONSTITUTION: When a remote registration is received, it is checked from which station this message is received(401,402). If the message is sent from a remote base station, the length of the message is checked(403), and it is determined whether an address and a connection number of the message have been registered in a list(404). According to a remote registration state, a service standby procedure and a service use procedure are performed(405-407). If the address and the connection number thereof are not included in a remotely registered list, a service suspension procedure is performed(409). If the received message is related to its base station, it is checked whether the address and the connection number thereof are included in a list for offering the remote registration service(411). If remote registration is not possible, the service standby procedure is performed(416), and otherwise the service use procedure is carried out(417).

Description

Bidirectional Remote Registration Process in Synchronous Transmission Network

The present invention relates to a bidirectional remote registration processing method for providing the concurrency of a remote registration service capable of cross remote registration from any synchronous transmission device to any synchronous transmission device in a synchronous transmission network constituted by a synchronous transmission device.

Conventionally, when a synchronous transmission network using a synchronous transmission device using a synchronous digital hierarchy (SDH) scheme is constructed, maintenance, control, and operation of any synchronous transmission device in a remote location from a synchronous transmission device in a domestic station is performed. The remote registration function, which provides management functions, was only possible with one synchronous transmitter in one direction.

For example, remote registration from a home station or a remote station to a remote station or a home station was not simultaneously processed, and at any moment, only a remote registration from the home station or one direction of the home station from the remote station was processed. Looking at this in more detail as follows.

1 is a structural diagram of a conventional hardware system.

The conventional remote registration function cannot be provided with a new remote registration service to such a running system when any system is attempting or providing a remote registration service due to the protocol structure and the exclusivity limitations of the remote registration.

Therefore, since the remote registration in the synchronous transmission network can be connected to any system, only N / 2 remote registration connections can be provided at any time when there are N systems.

The remote registration function is performed by a question and answer transaction method according to the service characteristics. That is, the command (i.e., send) and response (i.e., receive) use one logical connection.

Referring to FIG. 1, a connection layerless protocol (CLNP) 13 of the International Organization for Standardization (ISO) 8473 is used as a network layer protocol used by a remote registration service.

However, the CLNP 13 processes the packet and delivers the packet to the upper layer if the destination address of the received packet is correct due to its characteristics. That is, the transmission and reception connection is formed by the destination address and the source address.

Since the conventional remote registration service does not manage the logical connection between the source and destination of the packet, there is only one logical connection consisting of transmission and reception between the source and destination of the packet (11, 12). That is, based on the question-and-answer service, only the half duplex connection function is provided.

Therefore, when a system is remotely registered from the home station to the remote station or from the remote station to the home station, the remote registration by the further logical connection is not allowed (16) because it already occupies one logical connection.

In addition, since the CLNP 13 is a connectionless network protocol, there is no acknowledgment function for packets discarded by the data link due to an error. In addition, when the transmission network is complex, there is a problem that cannot provide accurate remote registration service because there is no function to recover the lost packet when the packet is lost in the network.

2 is a flowchart of a conventional remote registration processing method.

The conventional registration function processing method can be broadly classified into a procedure 201 to 208 for providing a remote registration service and a procedure for using a remote registration service 210 to 216.

First, when a control message (^ X) and a password are received from the keyboard in the remote system (201, 202), a message in which the password and priority are set is transmitted to the remote system (203).

If a message is received from the remote system that the passwords or priorities do not match (205), it returns to the initial state.

If the operation menu is received from the remote system (204), it is determined whether a control message (^ Q) is received from the keyboard (206).

As a result of the determination, if a control message (^ Q) is received, a message is sent to the remote system (208), the session is terminated (209), and then the state transitions back to the first state.

As a result of the determination, if the control message (^ Q) is not received, after transmitting the menu control key to the remote system (207), it is again determined whether the control message (^ Q) is received from the keyboard (206).

On the other hand, if a message is received from the remote system in the remote system (210), it is analyzed whether the password of the received message is matched (211).

As a result of the analysis, if the passwords match, it is determined whether the priority of the received message is higher than the remote system (212).

If the password of the message does not match or the priority is lower than the remote system, after transmitting the message that the password or priority does not match to the remote system (213), the state transitions back to the first state.

On the other hand, if the priority of the message is higher than the remote system, the operation menu is transmitted to the remote system (214).

If a message is received from the remote system (215), after ending the session (209), it transitions back to the initial state.

On the other hand, when an operation menu control key is received from the remote system (216), the operation menu is again transmitted to the remote system (214).

As described above, in the related art, the remote registration processing method has no response message for the remote registration request message (^ X), so it is not known whether the remote registration connection is successful. In addition, since there is no message that can reject a connection request or respond to permission according to various situations of a system to be remotely registered, a remote registration message is a factor that unnecessarily weights traffic in a packet network regardless of whether remote registration is set.

When the general remote registration data is transmitted, it is difficult to distinguish the type of the remote registration message because there is no header indicating the general data.

In the conventional remote registration method as described above, the remote registration from the own station or the remote station to the remote station or the own station cannot be processed at the same time, and at any moment, the remote registration from the own station to the remote station, or the remote station for one direction of the own station from the remote station. Since only the remote service is provided or when one of the services is terminated while using the remote registration service, the other service is automatically terminated.

The present invention devised to solve the above problems, bidirectional remote registration that can provide the concurrency of the remote registration service that can be cross-remote registration from any synchronous transmission device to any synchronous transmission device in the synchronous transmission network Its purpose is to provide a treatment method.

1 is a structural diagram of a conventional hardware system.

2 is a flowchart of a conventional remote registration processing method.

3 is an exemplary view of a hardware system to which the present invention is applied.

4 is a flowchart illustrating an embodiment of a bidirectional remote registration processing method according to the present invention;

5 is a structural diagram of an acknowledgment message used in the present invention.

6 is a structural diagram of a negative response message used in the present invention.

7 is a structural diagram of remote registration message information used in the present invention;

8 is a detailed flowchart of a process of providing a remote registration service (RLOGGED OFF) according to the present invention.

9 is a detailed flowchart illustrating a process of providing a remote registration service (RLOGGED ON) according to the present invention.

10 is a detailed flowchart illustrating a process of disabling a remote registration service (RLOGGING OFF) according to the present invention.

11 is a detailed flowchart of a remote registration service using process (RLOGGING WAIT) process according to the present invention.

12 is a detailed flowchart of a process of using a remote registration service (RLOGGING ON) according to the present invention.

* Explanation of symbols for the main parts of the drawings

10: System User Interface (MMI: Man-Machine Interface)

31: Remote Registration Server

In order to achieve the above object, the present invention provides a remote registration processing method in a synchronous transmission network, comprising: a first step of determining whether a received remote registration message is a remote registration message of a local station or a remote registration message from a remote station; A second step of performing a remote registration service procedure capable of cross-remote registration according to a service usage list and a provision list at the remote station if the remote registration message is received from the remote station as a result of the determination in the first step; And a third step of performing a remote registration service procedure capable of cross-remote registration according to a service usage list, a service provision list, and a remote registration status in the home country if the message of the homepage is related to remote registration. Steps.

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

3 is an exemplary view of a hardware system to which the present invention is applied.

The hardware system to which the present invention is applied is full duplex communication by changing to a protocol structure that can provide two or more logical connections between two systems as compared to the conventional hardware system capable of only remote registration in one direction as described above. It can provide a service and simultaneously handle the provision and use of a remote registration packet delivery protocol architecture that can recover damaged or lost packets and a remote registration service.

The hardware system to which the present invention is applied has a remote registration server 31 that performs remote registration independently of a system user interface (Man Machine Interface) in a conventional hardware system, and is connected to an ISO 8073 type above the CLNP 13. Transport Layer Protocol (TP4) 33 is used.

The TP4 (33) is a transport layer of the Data Communication Channel (DCC) protocol stack recommended for implementation in the Telecommunications Management Network (TMN) function of a synchronous digital hierarchy (SDH) synchronous transmitter. Protocol.

The TP4 33 is a protocol for guaranteeing the delivery of a network connection. The TP4 33 provides a plurality of logical connection functions 32 between two network addressed connections, and provides a retransmission and recovery function when an error occurs.

Accordingly, when the plurality of logical connection functions 32 are used, two logical connections may be managed separately, thereby enabling bidirectional cross remote registration 16 and 34.

4 is a flowchart illustrating an embodiment of a bidirectional remote registration processing method according to the present invention, and illustrates a remote registration processing procedure performed by the remote registration server 31.

The remote registration server 31 functions as a remote registration server processor independent of the MMI 10 so as to simultaneously handle the use and provision of the remote registration service.

Looking at the bidirectional remote registration processing method in the remote registration server 31 as follows.

First, when a remote registration message is received (401), the remote registration server 31 analyzes (402) whether the received remote registration message is a remote registration related message of a local station or a remote registration message received from a remote station.

As a result of the analysis, if the message is from the remote station, the length of the message is checked (403), and it is determined whether the source address and the connection number of the message are in the remote registration list (404). Here, the remote registration list indicates a list using the remote registration service.

If it is determined that the source address and the connection number of the message are in the list using the remote registration service, the remote registration state is checked to be on (405). The RLOGGING WAIT procedure is performed (406). If the remote registration is available, the RLOGGING ON procedure is performed (407).

If it is determined that the address and the connection number are not in the list using the remote registration service, it is analyzed whether it is in the remote registered list (408). Here, the remotely registered list represents a list that provides a remote registration service.

If the address and connection number are in the list providing the remote registration service, the RLOGGED ON procedure is performed (410). If the address and the connection number are not in both the remote registered list and the remote registered list, The RLOGGED OFF procedure is performed (409).

As a result of the analysis, if the received remote registration message is a remote registration related message of the own country, it is checked whether the destination address and the connection number of the corresponding message are on the list for providing the remote registration service (411).

As a result of the check, if the corresponding destination address and the connection number are on the list for providing the remote registration service, an error processing is performed (413), and then the RLOGGING OFF procedure is performed (414).

As a result of the check, if the corresponding destination address and connection number are not on the list for providing the remote registration service, it is analyzed whether it is on the list using the remote registration service (412).

If the analysis shows that the destination address and connection number are not in the list using the remote registration service, perform the RLOGGING OFF procedure (414). If the list is in the list using the remote registration service, the remote registration status is turned on. It is determined whether or not the state (ON) (415).

If the remote registration is not available, the RLOGGING WAIT procedure is performed (416). If the remote registration is enabled, the RLOGGING ON procedure is performed (417). .

5 to 7 show the structure of a message used in the present invention.

Referring to FIG. 5, an acknowledgment frame for a remote registration request is composed of a total of 3 bytes, and consists of 2 bytes, which is composed of a length of 1 and an acknowledgment message of 1 byte (^ Y). .

Referring to FIG. 6, the negative response frame for the remote registration request is composed of a total of 3 bytes, and is composed of 2 bytes of length (Length) having a value of 1 and a negative response message (^ N) of 1 byte. .

Referring to Figure 7, the remote registration data frame is composed of a total of M bytes, 2 bytes consisting of a length (Length) of the value (M-2), a remote registration message information consisting of 1 byte (^ G), and It consists of a RLOGIN MESSAGE consisting of (M-3) bytes.

8 is a detailed flowchart illustrating a process of providing a remote registration service (RLOGGED OFF) according to the present invention.

The messages that can be received in RLOGGED OFF status are Remote Registration Request Message (^ X), Negative Response Message (^ N), Positive Response Message (^ Y), Control Message (^ Q), and Remote registration message information (^ G).

In the prior art, there was no response message for the remote registration request message (^ X), so it was not known whether the remote registration connection was successful, and there was no message for rejecting or requesting access request according to various situations of the system to be remotely registered. Regardless of whether or not, the remote registration message has been a factor in unnecessarily weighting traffic in the packet network. In addition, when transmitting general remote registration data, there is no header indicating that the data is general data, so it is difficult to distinguish the type of remote registration message.

Therefore, in order to solve this problem, after confirming the remote registration connection by using a positive response message (^ Y) and a negative response message (^ N) for the remote registration request, the remote registration data is transmitted and received. Also, remote registration message information (^ G) is distinguished from general remote registration data.

First, if a remote registration request message (^ X) is received in the RLOGGED OFF state (801), it is determined whether the password is confirmed, whether the remote registration of the local station is allowed, and whether or not the current remote registration is possible. 807 to 809).

If it is determined that the password is successful, remote registration is allowed, and remote registration is possible, add the destination address and connection number of the received message to the remote registration enable list and set the local set enable to set the remote registration status. On, the screen is cleared and a remote registration process is generated (810).

Thereafter, after transmitting an affirmative response message (^ Y) to the remote registration system (811), a remote registration service provision (RLOGGED ON) procedure is performed (812).

As a result of the determination, a password failure, a remote registration rejection, and a negative response message (^ N) for rejecting the remote registration if the remote registration is impossible are transmitted to the remote registration system (813), and then returned to the initial state (814).

Meanwhile, when a negative response message (^ N), a positive response message (^ Y), a control message (^ Q), and a remote registration message information (^ G) are received in the RLOGGED OFF state (802) 805), error processing (806) and returning to the initial state (814).

9 is a detailed flowchart illustrating a process of providing a remote registration service (RLOGGED ON) according to the present invention.

The message that can be received in RLOGGED ON is the same as the status of RLOGGED OFF.

First, when a remote registration request message (^ X), a negative response message (^ N), and a positive response message (^ Y) are received in the remote registration service provision state (901 to 903), after error processing (906), After deleting the destination address and connection number of the received message from the remote registration enable list, turning off the local registration enable by turning off the local set enable, extinguished the remote registration process (907), The RLOGGED OFF procedure is performed (908).

If the control message (^ Q) is received in the remote registration service provision state (904), after error processing (906), the source address and connection number of the received message are removed from the current remote registration list and the current operation is performed. The remote registration process in progress is destroyed (907).

Thereafter, the procedure for stopping the remote registration service (RLOGGED OFF) is performed (908).

Meanwhile, when the remote registration message information (^ G) is received in the remote registration service providing state (905), the response to the connection input is printed (909) by the read input of the remote registration process and transmitted to the remote registration system. Thereafter, 910, a remote registration service provision (RLOGGED ON) procedure is performed (911).

10 is a detailed flowchart illustrating a process of disabling a remote registration service (RLOGGING OFF) according to the present invention.

The messages that can be received in RLOGGING OFF status are Remote Registration Request Message (^ X), Negative Response Message (^ N), Positive Response Message (^ Y), Control Message (^ Q), and Remote registration message information (^ G) or the like, which is an internal message received from the MMI 10.

First, when a remote registration request message (^ X) is received in the RLOGGING OFF state (101), it is determined whether the current remote registration can be added (107).

As a result of the determination, if the remote registration can be added, the destination address and connection number of the received message are additionally registered in the remote registration use list and the remote registration state is set to the standby state (108).

Thereafter, after the remote registration request message (^ X) is transmitted to the MMI 10 (109), a remote registration service waiting (RLOGGING WAIT) procedure is performed (110).

If it is determined that the remote registration cannot be added, the internal MMI 10 is notified (111), and then the RLOGGING OFF procedure is performed (112).

Meanwhile, when a negative response message (^ N), a positive response message (^ Y), a control message (^ Q), and a remote registration message information (^ G) are received in the RLOGGING OFF state (102) 105), after the error process, the process returns to the initial state again.

11 is a detailed flowchart illustrating a RLOGGING WAIT process according to the present invention.

First, when a remote registration request message (^ X), a control message (^ Q), and a remote registration message information (^ G) are received in the RLOGGING WAIT state (121, 124, 125), an error is processed ( 126), after deleting the source address and the connection number of the received message from the current remote registration list and turning off the remote registration status (130), the remote registration service is disabled (RLOGGING OFF) procedure (131). .

If a negative response message (^ N) is received in the RLOGGING WAIT state (122), the source address and the connection number of the received message are deleted from the current remote registered list and the remote registration state is deleted. After it is turned off (130), a procedure of disabling the remote registration service (RLOGGING OFF) is performed (131).

On the other hand, if an affirmative response message (^ Y) is received in the RLOGGING WAIT state (123), the remote registration state is turned on (127), and the RLOGGED ON procedure is performed. (128).

12 is a detailed flowchart illustrating one embodiment of a process of using a remote registration service (RLOGGING ON) according to the present invention.

First, when a remote registration request message (^ X), a negative response message (^ N), a positive response message (^ Y), and a control message (^ Q) are received in a RLOGGING ON state (141 to 1). 144), error handling (148), deletes the destination address and connection number from the remote registration usage list, turns off the remote registration status (149), and then performs the RLOGGING OFF procedure (150). ).

If the remote registration message information (^ G) is received in the RLOGGING ON state (145), after printing to the MMI (10) of the local station (151), it returns to the initial state (152).

On the other hand, when the internal control message (^ Q) is received in the RLOGGING ON state (146), the destination address and connection number are deleted from the remote registration use list and the remote registration state is turned off (153), After making a control message (^ Q) and transmitting it to a remote station (154), a procedure of disabling a remote registration service (RLOGGING OFF) is performed (155).

Finally, when the internal remote registration message information (^ G) is received in the state of using the remote registration service (RLOGGING ON) (147), after making the remote registration message information (^ G) and transmitting it to the remote registration system (156), It returns to the first state again (157).

The present invention described above is capable of various substitutions, modifications, and changes without departing from the spirit of the present invention for those skilled in the art to which the present invention pertains, and the above-described embodiments and accompanying It is not limited to the drawing.

According to the present invention as described above, it is possible to use the remote registration service to any remote station at the same time to provide a remote registration service to the remote station, and at the same time can also use the remote registration service in the remote station that provides the remote registration service It works.

Claims (8)

In the remote registration processing method in a synchronous transmission network, A first step of determining whether the received remote registration message is a remote registration message of a local station or a remote registration message from a remote station; A second step of performing a remote registration service procedure capable of cross-remote registration according to a service usage list and a provision list at the remote station if the remote registration message is received from the remote station as a result of the determination in the first step; And A third step of performing a remote registration service procedure capable of cross-remote registration according to a service usage list, a service providing list, and a remote registration status in the home station if the message of the home country is a remote registration related message Bidirectional remote registration processing method comprising a. The method of claim 1, The second step, A fourth step of determining whether the received remote message is in a remote registered list using a remote registration service; A fifth step of analyzing whether or not the remote registration status of the corresponding address and connection number is in the remote registration list as a result of the determination in the fourth step; A sixth step of performing a remote registration service using procedure when the remote registration state is in use as a result of the analysis of the fifth step; A seventh step of performing a remote registration service standby procedure if the remote registration state is Off as a result of the analysis of the fifth step; An eighth step of checking whether the remote registration list provides a remote registration service if the remote registration list is not found as a result of the fourth step; A ninth step of performing a remote registration service stop procedure if the check result of the eighth step is not on the remote registered list; And A tenth step of performing a remote registration service providing procedure if the check result of the eighth step is on the remotely registered list; Bidirectional remote registration processing method comprising a. The method according to claim 1 or 2, The third step, An eleventh step of determining whether the received country related message is in a remotely registered list for providing a remote registration service; A twelfth step of performing an error processing procedure if the remote registration list is in the remote registration list as a result of the determination in the eleventh step; A thirteenth step of checking whether the received country related message is in a remotely registered list using a remote registration service if it is not in the remotely registered list as a result of the determination in the eleventh step; A fourteenth step of performing a remote registration service disabling procedure if the check result of the thirteenth step is not included in the remote registered list; A fifteenth step of analyzing a remote registration state of the corresponding address and connection number if the check result of the thirteenth step is on the remote registered list; A sixteenth step of performing a remote registration service using procedure when the remote registration state is in use as a result of the analysis of the fifteenth step; And As a result of the analysis of the fifteenth step, if the remote registration state is Off state (17) to perform a remote registration service standby procedure Bidirectional remote registration processing method comprising a. The method of claim 3, wherein The performing of the ninth step of the remote registration service provision stop process, An eighteenth step of determining a password, whether to allow remote registration of the home country, and whether the remote registration is currently possible when the remote registration request message is received in the reception standby state; As a result of the determination in step 18, if the password is successful, remote registration is allowed, and remote registration is possible, add the destination address and connection number of the received message to the remote registration use list, and clear the screen by turning on the remote registration status. A 19th step of generating a remote registration process and transmitting a positive response message to the remote registration system and performing a remote registration service providing procedure; A twenty-first step of transmitting a negative response message indicating a password failure, a remote registration rejection, and a remote registration rejection to the remote registration system if the remote registration is impossible, and then waiting for reception again; And Step 21 of processing the error after receiving the negative response message, the positive response message, the control message, and the remote registration message information in the reception standby state, and then waits again. Bidirectional remote registration processing method comprising a. The method of claim 4, wherein The process of providing the remote registration service providing steps 10 and 19, If the remote registration request message, the negative response message, and the positive response message are received in the reception standby state, error processing is performed, and then the destination address and connection number of the received message are deleted from the remote registration use list, and the remote registration state is turned off. A twenty-second step of performing a procedure for stopping providing a remote registration service after the registration process is terminated; If the control message is received in the reception standby state, process the error, remove the source address and connection number of the received message from the current remotely registered list, delete the currently active remote registration process, and then stop the remote registration service provision procedure. Performing a twenty third step; And In step 24, when the remote registration message information is received in the reception standby state, the response to the connection input is printed by the read input of the remote registration process, transmitted to the remote registration system, and then waits again. Bidirectional remote registration processing method comprising a. The method of claim 5, The process of performing the procedure of disabling the remote registration service of steps 12 and 14, A twenty-fifth step of determining whether addition of a remote registration is possible when a remote registration request message is received in a reception standby state; As a result of the determination in step 25, if the remote registration can be added, the destination address and connection number of the received message are additionally registered in the remote registration use list, and the remote registration request message is sent to the system user interface with the remote registration status as the standby state. A twenty sixth step of performing a remote registration service waiting procedure after the transmission; A twenty-seventh step of notifying the system user interface if a remote registration cannot be added as a result of the determination in the twenty-fifth step, and then performing a procedure of disabling a remote registration service; And Step 28, if the negative response message, the positive response message, the control message, and the remote registration message information are received in the reception standby state, error processing, and then waiting for reception again Bidirectional remote registration processing method comprising a. The method of claim 6, The process of performing the remote registration service waiting procedure of steps 7, 17, and 26 may be performed. If the remote registration request message, the control message, and the remote registration message information are received in the reception standby state, error processing is performed, and then the source address and connection number of the received message are deleted from the current remote registration list, and the remote registration status is turned off. A 29 th step of performing a remote registration service suspension procedure; In step 30, when a negative response message is received in the reception standby state, the source address and connection number of the received message are deleted from the current remote registered list, the remote registration state is turned off, and the remote registration service is disabled. ; And Step 31 of performing a remote registration service providing procedure after turning on the remote registration state when a positive response message is received in the reception standby state Bidirectional remote registration processing method comprising a. The method of claim 7, wherein The process of performing the procedure of using the remote registration service of steps 6 and 16, If a remote registration request message, a negative response message, a positive response message, and a control message are received in the reception standby state, an error is handled, and the destination address and connection number are deleted from the remote registration use list, the remote registration state is turned off, and then A thirty-second step of performing a registration service suspension procedure; A thirty-third step in which if remote registration message information is received in the reception standby state, the remote registration message information is printed and then received again by the system user interface; If an internal control message is received in the reception standby state, delete the destination address and connection number from the remote registration use list, turn off the remote registration status, make a control message and send it to the remote station, and then perform the procedure for disabling the remote registration service. A thirty-fourth step; And In step 35, when the internal remote registration message information is received in the reception standby state, the remote registration message information is made and transmitted to the remote registration system, and then waiting for reception again. Bidirectional remote registration processing method comprising a.

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