KR20040077361A - Connection Apparatus and Management Method for debug port of remote system - Google Patents

Abstract

PURPOSE: An apparatus for connecting a debug port of a remote system, and a method for operating the same are provided to take a temporary measure for a failure by remotely confirming the state of each board of a system. CONSTITUTION: A CPU(Central Processing Unit)(100) drives a multi user telnet server, takes charge of routing between an RS-232 line and a LAN(Local Area Network)(320), or connects the RS-232 line with a modem(420), and multiplexes the RS-232 line. An Ethernet block(300) is formed of an MII(Media Independent Interface)(310) and a physical layer for forming an Ethernet port for telnet connection. A modem matching unit(400) controls the modem connection. A multi port SCC(Serial Communication Controller)(500) controls serial communication to execute RS-232 communication with each board. An RS-232 block(600) provides a plurality of RS-232 lines to execute RS-232 communication with each board.

Description

Connection Apparatus and Management Method for debug port of remote system}

The present invention connects a debug port or a monitor port of a remote system to a telnet from a remote site to monitor the state of each board of the system and to perform emergency measures. It is related to debug port connection device and operation method. Especially, it is applied to base station for IS-2000, and detailed debug message which cannot be seen from remote manager (BSM) can be connected to debug board of each board and connected to BSM or external. By directly checking at the terminal device, it is possible to check the status of each board and perform emergency measures without going directly to the remote site, and also to apply it to the IS-2000 system or another remote system. , Remote location that can be applied in case of trouble with trunk line between system and BSM It relates to a debug port connection device and operating method of the system.

In general, the base station of the IS-2000 is to report the status to the base station manager (BSM), it is possible to remotely monitor and control the status from the BSM.

However, in the above reporting procedure, if a problem occurs in the path, the report contents are not received on the BSM, and thus the status check and action of the base station are impossible.

For example, if an ATM cell bus (Cell-Bus) is a failure, the status report path of the base station is paralyzed and the BSM cannot take any action or situation.

In other words, conventionally, the BSM used a method of acknowledging a message. When a problem occurs in an ATM function inside a remote system or a problem in connection between a remote system and a BSM occurs, the BSM determines the state of the system. There was a problem in that the state of the base station could not be grasped because it could not communicate with each other.

In addition, when the above problem occurs, in order to determine the state of the base station to travel directly to a remote site to check through a debug monitor (Note Book, Dummy Terminal, etc.), there was a problem that the inconvenience.

Accordingly, the present invention is proposed to solve the above problems of the prior art,

An object of the present invention is to connect a debug port or a monitor port of a remote system to a telnet from a remote site to monitor the status of each board of the system and to perform emergency measures. To provide a debug port connection and operation of the system.

The present invention for achieving the above object,

It runs Multi User Telnet Server, handles routing between RS-232 line and LAN, and multiplexes RS-232 line and modem connection and RS-232 line. CPU (Central Processing Unit) for multiflexing)

Ethernet block which is composed of MII (Media Independent Interface) and Physical Layer, and configures Ethernet port for telnet connection,

A modem matching unit that controls modem connection so that it can be accessed by telephone from outside;

Multi-port SCC (Serial Communication Controller) to control serial communication for RS-232 communication with each board,

It is characterized by its structural configuration that consists of RS-232 blocks that provide multiple RS-232 lines for RS-232 communication with each board.

In addition, the present invention for achieving the above object,

Checking if telnet is connected,

If the check result is not connected, continue performing the check step, and if the check result is connected to telnet, starting an OS shell and selecting a port;

If the port is selected in the above step, confirming that the number of the selected port is entered;

If there is no input of the port number as a result of the check, performing the OS shell start and port selection step again; if the port number is input as a result of the check, opening the input / output (I / O Open);

Connecting the input / output (I / O connection) after the input / output opening,

Checking whether there is a polling response after the input / output connection;

Checking if there is a polling response as a result of the check, and if the polling response is not as a result of the check, determining that an abnormal connection is terminated and closing input / output (I / O close);

The method is characterized in that the method comprises the step of closing the telnet connection (Telnet Close) after the input and output close.

1 is a block diagram of an apparatus for connecting a debug port of a remote system according to the present invention;

2 is a flowchart illustrating a telnet connection for connecting to a debug port of a remote system according to the present invention.

<Explanation of symbols for the main parts of the drawings>

100 ..... CPU

200 ..... Memory section

300 ..... Ethernet Block

400 ..... Modem Matching Unit

500 ..... Multi-Port Serial Communication Controller

600 ..... RS-232 Line Block

Hereinafter, a preferred embodiment of the "debug port connection device and operation method of the remote system" of the present invention according to the technical concept as described above in detail with reference to the accompanying drawings.

The present invention uses a multi-user telnet (Multi User Telnet) technology and UART RS-232 communication technology to connect the RS-232 debug port of each board by telnet to allow access to the base station board by telnet from the outside, that is, BSM By using a LAN (LAN) or a telephone line other than the path of the access point, each board of the base station can be connected to determine the state of each board of the base station from a remote location.

This will be described in detail with reference to the accompanying drawings.

1 is a block diagram of an apparatus for connecting a debug port of a remote system according to the present invention.

As shown in the figure, a multi-user telnet server is operated and a routing between the RS-232 line and the LAN is performed, or the RS-232 line and the modem are connected to each other. It consists of a central processing unit (CPU) 100 that connects and multiplexes the RS-232 line, a memory unit 200, a media independent interface (MII), and a physical layer (physical layer). Ethernet block 300, which configures an Ethernet port for telnet connection, a modem matching unit 400 for controlling a modem connection for external telephone access, and RS-232 communication with each board. Multi-port SCC (Serial Communication Controller) 500 to control the serial communication to enable the RS-232 block 600 to provide a plurality of RS-232 lines for RS-232 communication with each board It consists of.

First, the present invention having the configuration as described above can be implemented in two ways, it can be implemented by a telnet connection method using a LAN (LAN) and a modem connection method using a telephone line.

In general, the base station of IS-2000 provides RS-232 for each board by default. For convenience, check the board status and insert it into the serial port of the notebook. It is common to use.

However, in the case of a remote system, the user cannot debug using a laptop directly, which causes a very difficult problem to identify the cause of the failure.

The present invention has been made in view of this point, if the telephone line or LAN connection to the base station, it is possible to remotely access (access) using it.

First, referring to FIG. 1, a device configuration and operation when using a LAN are as follows.

First, the CPU block 100 drives a multiuser telnet server and is responsible for routing between the RS-232 line and the LAN.

The Ethernet block 300 is composed of MII 310 and a physical layer, and configures an Ethernet port for telnet connection.

The RS-232 block 600 provides a plurality of RS-232 lines for RS-232 communication with each board.

In the above configuration, the operation of the present invention is different from that of general telnet, that is, when a telnet connection is made, in general, the shell of the OS operates to use the OS shell through a terminal. In this case, the server's CPU resources are allocated to use the OS and additional devices.

However, in the present invention, when a telnet connection is made, the RS-232 port is asked without connecting a shell. At this time, if you input the port number of RS-232, telnet port and RS-232 are connected. In other words, it is not a shell connection when telnet is connected, but only I / O connection. In addition, since the present invention is a multi-user telnet configuration can be used by connecting all the RS-232 ports of the base station when multiple access in the above manner.

In addition, if the terminal is shut down after telnet shutdown is not completed after the terminal is connected, the corresponding RS-232 port remains connected. Therefore, polling the telnet port for a certain period of time is necessary to prevent the connection. If it is determined that it is disconnected, it will disconnect RS-232.

Meanwhile, referring to FIG. 1, a device configuration and operation when using a modem are as follows.

First, the CPU block 100 connects an RS-232 line and a modem and functions to multiplex the RS-232 line.

The modem matching unit 200 plays a role of allowing the external telephone to be connected, that is, to connect the modem.

The RS-232 block 300 provides a plurality of RS-232 lines for RS-232 communication with each board.

Here, when connecting using the above-described modem, the operation is different from that of the LAN. That is, since it is an ASCII base communication method using a point to point protocol rather than a shell operation such as telnet, it is simply configured to transmit ASCII data received from RS-232 to a modem.

In addition, when using modem method, only 1: 1 connection can be made. If you want to connect to another board, you need to disconnect and reconnect.

In the present invention, the above two methods may be applied, respectively, and may also be configured as shown in FIG. 1 to use both of the above methods.

On the other hand, the operation of the present invention has a slightly different aspect as described above, that is, when using a multi-user telnet can be connected at the same time, so that the number of RS-232 that can be provided by the device by opening multiple terminals When using a modem with the advantage of being able to see simultaneously, RS-232 only allows multiplexing so that only one device can be connected at a time.

In addition, as another embodiment of the present invention, since a plurality of RS-232 ports can be used as one telnet port, the present invention can be applied even when a plurality of RS-232 ports are required even when not remotely located.

2 is a flowchart illustrating a telnet connection for connecting to a debug port of a remote system according to the present invention.

As shown in the drawing, a step of checking whether the telnet is connected (ST11), and if the check result is not connected, continues the check step, and if the check result is connected to the telnet, selecting the OS shell start and port ( ST12), if the port is selected in the above step, checking whether a number of the selected port is input (ST13); if there is no input of the port number, performing the OS shell start and port selection step again, and confirming When the resultant port number is input, step I / O Open (ST14), after the I / O opening, step I / O Connection (ST15), and after the I / O connection, Checking whether there is a polling response (ST16); if there is a polling response as a result of the check, continue checking; if the polling response is not found, determining that the connection is abnormal (ST17), and closing input / output (I / O Clo se) step (ST18), and after closing the input and output, and closes the Telnet connection (Telnet Close) (ST19).

As described above, in the telnet connection process, once the telnet connection is made, the OS shell is operated to receive a port number input. This can be thought of as a login.

Once the port number entered above is in range, exit the shell and open RS-232 I / O and connect it to the corresponding telnet connection.

After that, poll the telnet port every two minutes. If there is no response, the telnet port is regarded as an abnormal disconnection and the telnet connection is closed.

In the detailed description of the present invention, specific embodiments of a debug port connection device and a method of operating the remote system will be described, but the present invention can be modified in various ways without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the claims below but also by the equivalents of the claims.

According to the present invention "debug port connection device and operating method of the remote system" described above,

Remote port's debug port connection device that monitors the status of each board of the system and can take emergency action by connecting debug port or monitor port of remote system to remote telnet. And by providing an operation method, the debug port of a system such as an unmanned base station can be accessed remotely, which has the advantage that it can process everything remotely, except in the case of replacing the board failure.

In addition, since Telnet is used, multiple ports can be monitored at the same time by using multiple access methods instead of 1: 1 communication.

In addition, the status of each board of the system can be checked from a remote location, so if a failure occurs, immediate action can be taken immediately, and the detailed status of each board of the base station can be grasped even when communication between the remote system and the BSM is smooth. It has a number of advantages which help to operate the system.

Claims (2)

In the base station status checking apparatus, It runs Multi User Telnet Server, handles routing between RS-232 line and LAN, and multiplexes RS-232 line and modem connection and RS-232 line. Central Processing Unit (CPU) for Multiflexing); An Ethernet block comprising a Media Independent Interface (MII) and a Physical Layer, and configured to configure an Ethernet port for telnet access; A modem matching unit for controlling a modem connection so that an external telephone can be accessed; A multi-port SCC (Serial Communication Controller) for controlling serial communication for RS-232 communication with each board; A debug port connection device for a remote system, comprising an RS-232 block providing a plurality of RS-232 lines for RS-232 communication with each board. In the base station status checking method, Checking whether telnet is connected; Continuing the check step if there is no connection as the result of the check, and starting the OS shell and selecting a port when the result of the check is telnet; When the port is selected, checking whether a number of the selected port is input; If there is no input of the port number as a result of the check, performing the OS shell start and port selection step again; and opening the input / output when the port number is input as the result of the check; Connecting the input / output (I / O Connection) and checking a response of polling after the input / output open; If it is determined that there is no polling response, determining that an abnormal connection is terminated and closing input / output (I / O Close); And closing the telnet connection after the input / output close.