KR20040026284A - Backup & switching method of master BSM package information - Google Patents

Abstract

PURPOSE: A method for backing up master BSM(Base Station Manager) package information is provided to receive master BSM package information by on-line and switch a slave BSM to the main BSM when failure is generated in the main BSM. CONSTITUTION: Package information of a master BSM is backed up from the master BSM to a slave BSM through a TCP/IP(Transmission Control Protocol/Internet Protocol) network per uniform interval(S300a). If fault is generated in the master BSM(S310), slave BSM environment is changed to master BSM environment(S300b). A GAN(Global Area Network) and the slave BSM are connected by an optical cable, and the slave BSM is changed as a server(S300b).

Description

Backup & switching method of master BSM package information}

The present invention relates to a method of backing up and transferring master BSM package information. More particularly, the present invention provides a backup online in preparation for a failure of a main base station manager (BSM), which is a CDMA2000 1X base station management Unix server. It is a method to transfer the slave BSM to the main BSM in case of failure.

In general, a wireless communication system such as PCS or CDMA includes a base station, a mobile station (Mobile Station) and a mobile switching center (MSC).

In this case, the base station includes a base station controller (BSC) and a base station transceiver subsystem (BTS).

Referring to FIG. 1, the base station transceiver unit (BTS) 20, 21 and the base station controller (BSC) 30, 31 constitute a base station.

Wireless base stations 10 and 11 are connected to the base station transceiver units 20 and 21, and the BSC 30 is connected to the MSC 40, and the BSC 31 connects the GAN 50 and the BSC 30. It is connected to the MSC 40 through.

The BSCs 30 and 31 are connected to each other through a gateway ATM network (GAN) 50.

The GAN 50 is connected with a BSM 60 for maintaining and managing base stations.

In the above configuration, the BTSs 20 and 21 process the radio subscriber interface, and the BSCs 30 and 31 control the plurality of BTSs 20 and 21.

In particular, the BSCs 30 and 310 perform functions such as location registration, service suppression, call and session control, real-time traffic processing, handoff processing, network management function, and MSC 40 matching.

The BSM 60 provides a GUI environment for an operator's network management task on a commercial workstation platform, and manages the BSCs 30 and 31 / GAN 50 through SNMP.

In addition, it has a Telecommunication System (TMN) relay device function for the NMC interface.

In preparation for the failure of the BSM (master BSM) in use in the above configuration, the BSM backup system is configured to connect the BSM (slave BSM) to the TCP / IP network.

In the related art, a backup was performed by copying the package information of the master BSM to the slave BSM through an offline tape, which took a long time.

In addition, the master BSM failure requires fast recovery, but complicated procedures such as server replacement, dumping of related applications and DB, etc. are performed by the operator, requiring a highly skilled operator and time consuming recovery.

The present invention has been made to solve the above problems, an object of the present invention is to backup and transfer the master BSM package information that can reduce the emergency recovery time by simply and quickly backup system switching operation in case of master BSM failure To provide.

In order to achieve the above object, the present invention provides a backup in a backup system in which a master BSM being used as a server is connected to a GAN and a BSC through an ATM network of an optical cable and connected to an Ethernet card and a slave BSM through a TCP / IP network. And a method of transferring;

Backing up the package information of the master BSM from the master BSM to the slave BSM at regular intervals online through a TCP / IP network, and if a failure occurs in the master BSM, the slave BSM environment is changed to the master BSM environment and the GAN and It is to provide a backup and transfer method of the master BSM package information, characterized in that the switching process between the slave BSM is connected to the slave BSM to the server by the optical cable.

1 is a block diagram of an ATM system to help understand the present invention.

2 is a block diagram of a general BSM backup system.

3 is a flowchart illustrating a method of backing up and transferring package information according to the present invention.

4 is a flowchart after the slave BSM is restored to its original state.

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

100: master BSM200: slave BSM

300: monitor PC400: GAN

500: Ethernet card 600a,... , 600n: BSC

710: ATM network 720: TCP / IP network

730: communication management network (TMN) 740: BSM network

Hereinafter, the configuration and operation of the embodiments of the present invention will be described with reference to the accompanying drawings.

2 is a block diagram of a general BSM backup system.

The master BSM 100 being used as a server is connected to the GAN 400 and a plurality of BSCs 600a, ..., 600n connected to the GAN 400 through the ATM network 710 of the optical cable. ) Manages the GAN 400 and the BSC (600a, ..., 600n) through the ATM network (710).

The master BSM 100 is connected to the slave BSM 200 connected to the Ethernet card 500 through the TCP / IP network 720.

Also, the innernet card 500 is connected to the TMN 730 so that the master BSM 100 performs the TMN 730 relay function for the NMC interface.

The innernet card 500 is connected to the monitor PC 300 far from the master BSM 100 via the BSM network 740 and is output to the master BSM 100 through the monitor PC 300 even at a remote location. You can see the contents.

In general, the master BSM 100 and the slave BSM 200 are installed in the exchange room, the monitor PC 300 is installed in the base station.

The optical cable (ATM network 710) is laid between the GAN 400 and the slave BSM 200, but it is usually in an off state and the master BSM 100 such as broken master package information or a workstation abnormality. It is connected to each other when switching BSMs due to a failure.

The package information includes a master BSM 100 application program, a base station shape such as type, slot, configuration information, Ethernet environment, base station program, PLD, statistics, and the like.

That is, the contents of the package subdirectory are shown in Table 1.

~ PKG / My Directory Contents Auto BKUP Bsmbin Executables in the BSM Application Block ● Config Geometry files related to BSM initialization, such as Bim.cfg Patch Patch for BSC, BTS, GAN Application Blocks and OS ● Pgm Executables and OS in BSC, BTS, and GAN Application Blocks ● Pld PLD of BSM, BSC, BTS, GAN ● Umibin Class file containing Uim_main.class ● util Useful utility files related to BSM operation BSMDATA Save statistics, log, block configuration file

In the above configuration, the backup and transfer method according to the present invention includes a process of backing up the master BSM 100 package information online from the master BSM 100 to the slave BSM 200 at regular intervals (S300a) and the master. When a failure occurs in the BSM 100, the slave BSM 200 environment is changed to a master BSM 100 environment, and the switching process is performed by connecting an optical cable between the GAN 400 and the slave BSM 200.

3 is a flowchart of a backup and transfer process according to the present invention.

The backup process (S300a) first executes a command (cron) to repeatedly perform a package backup (S302).

The following command is an example of a command to be executed at 07:20 every day, and system2 means the master BSM.

system2: / home1 / cdmaone> crontab -l

20 07 * * * / home1 / cdmaone / BKUP / bkup_pkg

The master BSM 100, which functions as a server, compresses the package information into a tar and generates a backup file (S304).

If the amount of packages in the backup file generation step (S304) is large, only the bsmin, pgm, pld, patch, and uinbin directories of the directories shown in Table 1 are generated.

The continuously compressed backup file is copied to the slave BSM 200 via the TCP / IP network 740 and the Ethernet card 500 (S306).

The contents backed up by the slave BSM 200 are checked (S308).

Below are the commands to verify what was backed up (first line) and the output screen (lines 2 to 5), where-. Tar.Z is the backup of the day and-. Tar.old. Z is the backup of the previous day.

System2: / home1 / cdmaone / BKUP> ls -l -rw-r--r-- 1 cdmaone staff 35064 Jun 11 07:24 bk_log -rw-r--r-- 1 cdmaone staff 49478381 Jun 11 07:20 bsm102_pkg.tar.Z -rw-r--r-- 1 cdmaone staff 47267505 10 June 07:20 bsm102_pkg.tar.old.Z -rwxrwxrwx 1 cdmaone staff 543 Jun 10 10:59 bkup_pkg *

In this manner, the master BSM 100 package information is backed up to the slave BSM 200 every day.

When the backup information is completed, the package information is broken or the master BSM 100 fails due to a workstation or more (S310). If the function is not performed as a server, the slave BSM 200 selects the BSM transfer menu (S320).

The transfer menu selection step (S320) includes logging in the root account, executing a transfer shell command, and selecting one of three transfer menus.

The following command is used to select the BSM transfer menu.

Backup2: / home1 / cdmaone> su

Passwd: XXXXXXX

# cd / home1 / cdmaone / BKUP

# bkup_run

The BSM transfer menu is a first menu for changing the slave BSM 200 to the server with the contents backed up on the day, a second menu for changing the slave BSM 200 to the server with the contents for the previous day's backup, and the master BSM 100. To a server and a third menu for restoring the slave BSM 20 to its original state.

When the first menu or the second menu is selected in the BSM transfer menu selection step (S320), a step (S330) of changing the slave BSM 200 to a master BSM with the contents of the backup of the same day or the previous day is performed.

The transferring step (S330), the step of extracting the backup file of the day or the previous day (S332), changing the configuration file of the slave BSM (200) to the configuration file of the master BSM (100), Substituting the configuration environment of the slave BSM (200) with the configuration environment of the master BSM 100 (S336), and rebooting the slave BSM (200) to determine whether the change to the master BSM (S338).

The configuration file of the BSM includes config / bim, cfg, aimx, and the like, and the configuration environment includes a hostname, a nodename, an IP address, and the like.

When the slave BSM 100 is changed to the server, the slave BSM 200 and the GAN 400 is connected by an optical cable, and the optical cable connected between the master BSM 100 and the GAN 400 is removed (S340).

When the third menu is selected in the BSM switching menu selection step (S320), as shown in FIG. 4, the step of recovering the slave BSM 200 to its original state (S402) and rebooting the slave BSM 200 to reset the original Checking whether or not the state has been restored (S404), and if the slave BSM 200 has been restored to its original state, the optical cable connected between the slave BSM 200 and the GAN 400 is removed, and the master BSM 100 and the GAN ( 400 to perform the step of connecting the optical cable (S406).

As described above, when the master BSM 100 fails and functions as a server, the backup of the package (application and DB) is performed in advance so that the slave BSM 200 is transferred while remaining completely identical to the master BSM 100. And by changing to the system configuration environment of the master BSM, you can easily backup and transfer when the actual situation occurs.

As described above, according to the present invention, the emergency recovery time can be shortened by easily and quickly performing a backup system switching operation in case of a master BSM failure.

Claims (6)

A method of backing up and switching in a backup system in which a master BSM being used as a server is connected to a GAN and a BSC through an ATM network of an optical cable and connected to an Ethernet card and a slave BSM through a TCP / IP network; Backing up the package information of the master BSM from the master BSM to the slave BSM at regular intervals online through a TCP / IP network, and if a failure occurs in the master BSM, the slave BSM environment is changed to the master BSM environment and the GAN and Backup and transfer method of the master BSM package information, characterized in that the switching process between the slave BSM to the slave BSM to the server by connecting the optical cable. The method of claim 1, wherein the backup process, Executing the command repeatedly to perform a package backup, Generating a backup file by continuously compressing package information of the master BSM; Copying the continuously compressed backup file from a master BSM to a slave BSM through a TCP / IP network; Method of backing up and transferring the master BSM package information, characterized in that it comprises the step of checking the contents backed up in the slave BSM. The method of claim 2, wherein when the package information is large in the backup file generation step, Bsmin (executable file of BSM application block), pgm (executable file of BSC, BTS, GAN application block and OS), pld (PLD of BSM, BSC, BTS, GAN), patch (BSC, Backup and transfer method of master BSM package information, which generates backup file only for BTS, GAN application block and OS) and uinbin (class file including Uim_Main.Class) directory. The method of claim 1, wherein the transfer process, Selecting the BSM transfer menu from the slave BSM; Changing the slave BSM to the server or restoring the slave BSM to its original state after restoring the master BSM to the server according to the selected switching menu; When the slave BSM is changed to the server, connecting the optical cable between the slave BSM and the GAN, and if the slave BSM is restored to its original state, removing the optical cable connected between the slave BSM and GAN of the master BSM package information Backup and Transfer Method. The method of claim 4, wherein the BSM transfer menu, The first menu to change the slave BSM to the server with the backup of the day, the second menu to change the slave BSM to the server with the backup of the previous day, and the third menu to recover the master BSM to the server and restore the slave BSM to the original state. Backup and transfer method of master BSM package information, characterized by consisting of a menu. The method of claim 4, wherein changing the slave BSM to a server comprises: Extracting the backup file of the same day or the previous day, changing the configuration file of the slave BSM to the configuration file of the master BSM, replacing the configuration environment of the slave BSM with the configuration environment of the master BSM, and rebooting the slave BSM. How to backup and transfer the master BSM package information, characterized in that the step consists of determining whether the server has been changed.