JP3183987B2 - How to update the software file of the exchange - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a file updating system, and more particularly to a system for updating software files such as control software for an exchange in which continuity of a call processing service is required.

2. Description of the Related Art Conventionally, a method of updating a software file of an exchange of this type has been a method in which a service is temporarily interrupted or a method in which a connected call is disconnected.

The above-described method of updating a software file has a drawback that a service interruption time is long or a connected call is disconnected. Updating cannot be performed, resulting in patch handling, complicating patch management, limiting the number of file updates required to add new functions, and executing file updates late at night when the load is small. In addition, there is a problem that the burden on maintenance personnel increases.

According to the file updating method of the present invention, a main storage means for storing a software file is provided, and call processing control of a communication path apparatus is performed in accordance with the software file stored in the main storage means. In the method of updating a software file of an exchange provided with a redundant control system device, information transfer of the call processing control to a standby control system device is performed to an active control system device executing the call processing control. And a physical / logical conversion means for converting physical call information for the call being processed into logical call information, and providing the standby control system device with the active control system device. Transfer means for transferring information; and logical / physical conversion means for converting the logical call information into physical call information, wherein the active control system device starts the standby control system device, and The supplied new software file is stored in the main storage means of the standby control system device, and the standby control system device performs an initial setting using the new software file, and performs physical setting for the call being processed. When the call information is converted to the logical call information and transferred to the standby control system device, physical call information for the call being processed is obtained from the logical call information transferred from the working control system device. Transferring the call processing control right for the communication path system device from the active control system device to the standby control system device, and performing system switching between the active system and the standby system between the control system devices. It is. According to another file updating method of the present invention, there is provided a control system device having a dual configuration having a main storage unit for storing a software file and performing a call processing control of a communication path unit in accordance with the software file stored in the main storage unit. Transfer means for transferring information between an active control system device executing the call processing control and a standby control system device performing the call processing control, and A distributing means for distributing an existing call or a new call in response to a call processing request from a road system device, wherein the standby control system device is activated and stores new software supplied from the outside in the main storage means. Then, when the call control right is delegated from the active control system device and the system is switched between the active system and the standby system to become a new active system, a call processing request from the communication path system device is dispatched. If the call is an existing call, the call information is transferred to the control device of the old working system which has become the new standby system, and the call processing control is performed with the old software file. In this configuration, the file update is stopped when the processing of all the existing calls is completed. Further, in the above configuration, the control system device may have a disk device as a rib storage unit in which the new software file is stored in advance.

Next, the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a first embodiment of the present invention. The control system devices have a redundant configuration of system 0 and system 1, each of main storage devices (MM) 20 and 21 storing software files for each system, and a central control device (CC) operating according to the software files in the MM. ) 10,1
1 is provided. FIG. 1 shows a case where the system 0 is the active system and the system 1 is the standby system.
The communication path system 40 is connected to C10. A disk device (DK) 30 in which a new software file is stored in advance is connected to CC11 which is a standby system. The 0-system and 1-system control system devices are capable of switching between the active system and the standby system, and include means for controlling the call processing of the communication path system device 40, and information between the other systems including a control information register. Means for controlling transfer; means for converting physical call data such as communication ID, service type, resource device number, status, etc. of a remedy target call being processed by the communication path system device 40 to logical call data; There are provided means for converting logical call data such as type, resource device number, state and the like into physical call data, and means for converting physical call data into logical call data. Next, an operation of updating a file in the state of FIG. 1 will be described with reference to a control sequence diagram of FIG. (1) Align the system configuration with the active system CC 10 (step 10
1). (2) The active system starts CC11 (step 10)
2). (3) The standby system reads the new file from the DK 30 and writes the new file into the standby MM 21, and performs initial setting using the new file of the MM 21 (step 103). (4) When the initialization is completed, the standby system writes an indication of the completion of the initialization to the control information register (step 10).
4). (5) The active system periodically reads the control information register of the standby system and waits for completion of the initialization in the standby system (step 10).
5). (6) When the initial setting of the standby system is completed, the active system stops the call processing (step 106). (7) The active system converts the physical call data into logical call data (step 107). (8) The active system transfers the logical call data to the standby system (step 108). (9) Upon receiving the logical call data, the standby system reversely converts the logical call data into the original physical call data and sets it in the MM 21 (step 109). (10) The above items (7) to (9) are repeated until the transfer of the call data necessary for call rescue is completed. (11) When all the transfer of the call data is completed, the active / standby system is switched (step 110). (12) In the new active system (CC11 and MM21 of the first system), call rescue initialization for the communication path apparatus 40 is executed (step 111). In the resumption process, in order to reduce the amount of logical call data and eliminate the mismatch between the call data and the resource status, instead of using a call-based release process for non-rescue calls, all resources are temporarily set to an empty state and calls to be rescued are called. The resource status is reset from data. However, a resource state that is not included in the call data (for example, a maintenance state such as a line blocking state) is taken over separately from the call data. Nothing is performed for the initial setting of the call controlled by the non-rescue call. That is, the signal sequence is dealt with by reset processing as illegal signal processing in an empty state, and since hardware such as a PB receiver is in an empty state in software, it is initialized when a hunt is performed in the next call. (13) After the restart processing is completed, a file is copied from the MM21 of the new active system to the MM20 of the new standby system. FIG. 3 is a control sequence diagram showing the second embodiment of the present invention. The outline of the sequence will be described below. (1) New system file by IPL function of standby system
The station data file / subscriber data file and others are loaded into the standby system MM (step 201). (2) The standby system executes the restart processing without performing physical control of the hardware (step 202). (3) Resuming process is completed (step 203). (4) The standby system reports the end of the restart processing to the active system (step 204). (5) The active system switches between the active system and the standby system (step 205). (6) The new active system determines whether it is an event for an existing call or a new call (step 206), and performs the processing of item (7) for an existing call and the processing of item (12) for a new call. (7) The event is relayed from the new active system to the new standby system (step 207). (8) The new standby system starts processing for the existing call (step 208). (9) The new standby system issues a resource control request to the new active system and receives the result (step 209). (10) The new standby system issues a hardware control request to the new active system and receives the result (step 210). (11) The new standby system ends the processing of the existing call (step 211). (12) The new active system executes normal call processing for a new call (step 212). (13) The new active system determines whether or not the number of existing calls is "0" (step 213), and if "0", performs the processing of item (15), otherwise performs the processing of item (14). (14) The new active system continues the file update state (step 214). (15) The new active system ends the file update (step 215).

As described above, according to the present invention, a new software file is stored in advance in a standby system of a control system device for performing call processing control of an exchange, and this standby system is switched to a new active system to be connected. By transferring the call information for the current call from the old working system to the new working system, or by continuing the processing of the existing call in the old working system, the call being connected can be temporarily interrupted for a very short time or at all. Because the connection status of the file is maintained, software bugs can be fixed by updating the file, which eliminates the need for patch management, new functions can be added at any time by updating the file, and the file can be updated at normal business times. And the burden on the maintenance person can be reduced.

[Brief description of the drawings]

FIG. 1 is a block diagram of one embodiment of the present invention.

FIG. 2 is a control sequence diagram of the embodiment of FIG.

FIG. 3 is a control sequence diagram of another embodiment of the present invention.

[Explanation of symbols]

 10, 11 Central control unit (CC) 20, 21 Main storage unit (MM) 30 Disk unit (DK) 40 Communication path unit

──────────────────────────────────────────────────続 き Continued on the front page (73) Patent holder 000005223 Fujitsu Limited 4-1-1, Kamiodanaka, Nakahara-ku, Kawasaki-shi, Kanagawa Prefecture (73) Patent holder 390023157 Nortel Networks Limited NORTEL NETWORKS LIMITED Canada Etch 2, Wy 3, Wy 4, Quebec Montreal Saint Antoine Street West 380 World Trade Center of Montreal A-Sfloor (72) Inventor Yoshifumi Kodama 5-7-1 Shiba, Minato-ku, Tokyo NEC Corporation (72) Inventor Kazuo Koike 1-6-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (72) Inventor Kunihiko Kobari 216 Totsukacho, Totsuka-ku, Yokohama-shi, Kanagawa Prefecture Shares (72) Inventor Haruki Taguchi 216 Totsuka-cho, Totsuka-ku, Yokohama-shi, Kanagawa Prefecture Hitachi, Ltd.Information-communications Division Hitachi, Ltd. (72) Inventor Masaru Ishizuka 1-7-12 Toranomon, Minato-ku, Tokyo Oki Electric Industry Co., Ltd. (72) Inventor Yuyuki Nosaka 1015 Uedanaka, Nakahara-ku, Kawasaki City, Kanagawa Prefecture Inside Fujitsu Co., Ltd. 7M5 (56) Reference JP-A-59-191963 (JP, A) JP-A-58-181387 (JP, A) JP-A-57-58493 (JP, A) JP-A-4-129496 (JP, A) Hikaru Hei 5-327872 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H04Q 3/54-3/545 H04M 3/00

Claims (2)

(57) [Claims] A main storage device (20, 21) for storing a software file and a central control device (10, 11) for executing call processing control according to the software file stored in the main storage device, respectively. Each of the duplicated control system devices has a call processing control as a working system and a standby system in response to a call processing request from a call processing control of one communication path system device (40). In the exchange configured to perform the call processing control for the communication path device, while switching the control system device to the active system and the standby system, updating the software file of the exchange stored in the main storage device Wherein the two central control units (10, 11) are already connected in response to a call processing request from the communication channel device. Distributing means is set so as to be able to sort whether it is a call processing request for an existing call or a call processing request for a new call requesting a new connection. A transfer means capable of transferring information between the devices (10, 11) is set in advance, and the main storage device (2) of the control system device serving as a standby system is set.
The new software to be updated is stored in 1), and the switching of the standby control system to the new active system is performed and the switching of the active control system to the new standby system is executed. (11) distributes the call processing request from the communication path system device (40) by the distribution means, and if the request is a new call, executes the call processing control in its own central control device (11). And updating the software file of the exchange so that if the call is an existing call, the call is transferred through the transfer means so that the call is transferred to the central controller (10) which has become the new standby system. Method. 2. The method according to claim 1, wherein the file update is terminated when there are no more existing calls to be processed in the new standby system.