JPH0869429A - Switching device of communication processor - Google Patents

Switching device of communication processor

Info

Publication number
JPH0869429A
JPH0869429A JP6204778A JP20477894A JPH0869429A JP H0869429 A JPH0869429 A JP H0869429A JP 6204778 A JP6204778 A JP 6204778A JP 20477894 A JP20477894 A JP 20477894A JP H0869429 A JPH0869429 A JP H0869429A
Authority
JP
Japan
Prior art keywords
communication processing
processing device
terminal
switching
information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP6204778A
Other languages
Japanese (ja)
Inventor
Katsutoshi Okano
勝俊 岡野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Solution Innovators Ltd
Original Assignee
NEC Solution Innovators Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Solution Innovators Ltd filed Critical NEC Solution Innovators Ltd
Priority to JP6204778A priority Critical patent/JPH0869429A/en
Publication of JPH0869429A publication Critical patent/JPH0869429A/en
Pending legal-status Critical Current

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  • Computer And Data Communications (AREA)

Abstract

PURPOSE: To lighten the load of switching by a host computer when network trouble occurs. CONSTITUTION: A main storage image storage means 11 stores an external storage device 5 with a main storage image obtained by previously expanding terminal information and communication processing control software on a main storage 21, and a main storage image transfer means 12 transfers its main storage image expansion information 53 to the main storage 31 when a fault of an in-use communication processor 2 is detected. A switching means 15 switches the inter-system communication path of a host computer 6 to a stand-by communication processor 3 and the line to a terminal 7 is switched to the stand-by communication processor 3 by line switching 16; and a communication processor state managing means 13 changes 'stand-by' state management information into 'in-use' and a communication processor actuating means 14 indicates the start of processing to the communication processor 3.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は通信ネットワークシステ
ムに関し、特に通信処理装置の障害によるネットワーク
トラブルが発生した場合における通信処理装置の切り替
えを行う通信処理装置の切り替え装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication network system, and more particularly to a communication processing device switching device for switching communication processing devices when a network trouble occurs due to a communication processing device failure.

【0002】[0002]

【従来の技術】従来、この種の通信処理装置の切り替え
は、ホスト計算機および端末に依存し、ホスト計算機
は、通信処理装置の障害を認識すると、その通信処理装
置を経由する端末とのセション接続状態を一旦リセット
し、予備の通信処理装置の活性化および回線の取り込み
後に、新たな通信処理装置経由で、端末とのセションを
再接続するようにしている。
2. Description of the Related Art Conventionally, switching of a communication processing device of this kind depends on a host computer and a terminal, and when the host computer recognizes a failure of the communication processing device, a session connection with the terminal via the communication processing device is made. The state is once reset, and after the backup communication processing device is activated and the line is taken in, the session with the terminal is reconnected via the new communication processing device.

【0003】[0003]

【発明が解決しようとする課題】上述した従来の通信処
理装置の切り替えは、ホスト計算機での処理に依存して
いるので、ホスト計算機の負荷を上げてしまうという欠
点がある。
Since the switching of the above-mentioned conventional communication processing device depends on the processing in the host computer, there is a drawback that the load of the host computer is increased.

【0004】本発明の目的は、通信処理装置の障害を検
知すると、障害になった通信処理装置の端末情報を予備
の通信処理装置に送り込み、障害になった通信処理装置
経由でつながっていた端末が接続されている回線群を予
備の通信処理装置側に引き込むことにより、ホスト計算
機の負荷を抑えることができる通信処理装置の切り替え
装置を提供することにある。
An object of the present invention is to detect a failure of a communication processing device, send the terminal information of the communication processing device that has failed to a backup communication processing device, and connect to the terminal via the communication processing device that has failed. It is an object of the present invention to provide a communication processing device switching device capable of suppressing the load on the host computer by drawing the line group connected to the backup communication processing device side.

【0005】[0005]

【課題を解決するための手段】本発明の装置は、切り替
え装置を介して、ホスト計算機および端末と予備の通信
処理装置および現用通信処理装置とが接続されたシステ
ムにおける通信処理装置の切り替え装置において、前記
切り替え装置は、現用通信処理装置ごとに端末情報およ
び通信処理制御ソフトウェアを展開した主記憶のイメー
ジを予め外部記憶装置に格納する主記憶イメージ格納手
段と、通信処理装置ごとの状態管理情報を基に、現用通
信処理装置の障害検知時に、障害になった通信処理装置
に対応する端末構成情報および通信処理制御ソフトウェ
アを展開した主記憶イメージを格納した内容を外部記憶
装置から読みだし、予備の通信処理装置に転送する主記
憶イメージ転送手段と、ホスト計算機と障害になった現
用通信処理装置の間のシステム間通信路をホスト計算機
に切り替えることを検知されることなく、予備の通信処
理装置側へ切り替えるシステム間通信路切り替え手段
と、端末と障害になった現用通信処理装置の間の回線
を、端末に切り替えることを検知されることなく予備の
通信処理装置側へ切り替える回線切り替え手段と、前記
処理後、「予備」だった通信処理装置の状態管理情報を
「現用」とし、障害になった現用通信処理装置の状態管
理情報を「予備」と更新する通信処理装置状態管理手段
と、通信処理装置の状態管理情報が「予備」から「現
用」に変わった通信処理装置に処理の開始を指示する通
信処理装置起動手段を有し、また、前記通信処理装置ご
とに、端末構成情報にもとづき、端末ごとの状態を外部
記憶装置に憶える端末状態情報更新手段と、切り替え装
置から端末構成情報と通信処理制御ソフトウェアを展開
した主記憶イメージの転送が終了した時に、端末構成情
報外部記憶装置にある端末状態情報を同期づける端末構
成情報・端末状態情報同期手段とを有することを特徴と
する。
An apparatus of the present invention is a communication processing apparatus switching apparatus in a system in which a host computer and a terminal are connected to a spare communication processing apparatus and an active communication processing apparatus via a switching apparatus. The switching device stores main memory image storage means for storing in advance an external storage device an image of a main memory in which terminal information and communication processing control software are developed for each active communication processing device, and state management information for each communication processing device. Based on this, when a failure of the active communication processing device is detected, the contents of the main memory image in which the terminal configuration information corresponding to the failed communication processing device and the communication processing control software are expanded are read from the external storage device, and the backup The main memory image transfer means for transferring to the communication processing device, and the active communication processing device of the host computer and the obstacle The inter-system communication path switching means for switching to the spare communication processing device side and the line between the terminal and the active communication processing device that has failed without detecting the switching of the inter-system communication path of The line switching means for switching to the spare communication processing device side without being detected to switch to the terminal, and the status management information of the communication processing device that was “spare” after the above processing is set to “active” A communication processing device state management unit that updates the state management information of the communication processing device to "standby" and a communication processing device whose state management information of the communication processing device has changed from "standby" to "active" are instructed to start processing. And a terminal status information updating means for memorizing the status of each terminal in an external storage device based on the terminal configuration information for each communication processing apparatus. And a terminal configuration information / terminal state information synchronization means for synchronizing the terminal configuration information in the external storage device with the terminal configuration information when the transfer of the terminal configuration information and the main storage image in which the communication processing control software is developed is completed from the switching device. It is characterized by

【0006】[0006]

【作用】本発明の通信処理装置の切り替え装置は、切り
替え装置において、主記憶イメージ格納手段が、現用通
信処理装置ごとに端末情報および通信処理制御ソフトウ
ェアを通信処理装置の主記憶に展開した主記憶イメージ
を予め外部記憶装置に格納しておき、端末情報および通
信処理制御ソフトウェアの主記憶イメージ転送手段は、
現用通信処理装置の障害検知時に、通信処理装置ごとの
状態管理情報を基に障害になった現用通信処理装置に対
応する端末構成情報および通信処理制御ソフトウェアの
主記憶展開イメージを外部記憶装置から読み出し、予備
の通信処理装置の主記憶に転送する。
In the switching device of the communication processing device of the present invention, in the switching device, the main memory image storage means is a main memory in which the terminal information and the communication processing control software are expanded in the main memory of the communication processing device for each active communication processing device. An image is stored in advance in an external storage device, and the main storage image transfer means of the terminal information and communication processing control software is
When a failure of the active communication processing device is detected, the terminal configuration information corresponding to the active communication processing device that has failed and the main memory expansion image of the communication processing control software are read from the external storage device based on the status management information for each active communication processing device. , To the main memory of the backup communication processing device.

【0007】そして、システム間通信路切り替え手段
は、ホスト計算機と障害になった現用通信処理装置の間
のシステム間通信路を、ホスト計算機にシステム間通信
路が切り替わることを検知されることなく、予備の通信
処理装置に切り替え、回線切り替え手段は、端末と障害
になった現用通信処理装置の間の回線を端末に回線が切
り替わることを検知されることなく予備の通信処理装置
に切り替え、通信処理装置状態管理手段は、障害になっ
た現用通信処理装置の状態管理情報を「予備」とし、
「予備」だった通信処理装置の状態管理情報を「現用」
とし、通信処理装置起動手段は、通信処理装置の状態管
理情報が「予備」から「現用」に変わった通信処理装置
に処理の開始を指示する。
The inter-system communication path switching means switches the inter-system communication path between the host computer and the failed active communication processing unit without the host computer detecting that the inter-system communication path is switched. Switching to the spare communication processing device, the line switching means switches the line between the terminal and the working communication processing device that has failed to the spare communication processing device without detecting the switching of the line to the terminal, and the communication processing The device status management means sets the status management information of the active communication processing device that has become a failure to "spare",
The status management information of the communication processing device that was "spare" is "active"
Then, the communication processing device activation means instructs the communication processing device whose status management information of the communication processing device has changed from “standby” to “active” to start processing.

【0008】また、通信処理装置においては、端末構成
情報・端末状態情報同期手段が、通信処理装置の切り替
え装置から端末構成情報と通信処理制御ソフトウェアの
主記憶展開イメージの転送終了時に、端末構成情報と外
部記憶装置にある端末状態情報を同期づけ、端末状態情
報更新手段がホスト計算機と端末の通信の中で端末状態
が更新されるごとに外部記憶装置の中の端末ごとの端末
構成情報を更新する。
Further, in the communication processing device, the terminal configuration information / terminal state information synchronization means is configured to terminate the terminal configuration information at the end of transfer of the terminal configuration information and the main memory expansion image of the communication processing control software from the switching device of the communication processing device. And the terminal state information in the external storage device are synchronized, and the terminal state information updating means updates the terminal configuration information for each terminal in the external storage device every time the terminal state is updated during communication between the host computer and the terminal. To do.

【0009】[0009]

【実施例】次に、本発明について図面を参照して詳細に
説明する。
The present invention will be described in detail with reference to the drawings.

【0010】図1は、本発明の通信処理装置の切り替え
装置の一実施例の構成を示すブロック図である。切り替
え装置1と、2つの通信処理装置2,3と、通信処理装
置用外部記憶装置4と、切り替え装置用外部記憶装置5
と、ホスト計算機6と、端末とで構成されている。図1
には、端末7として図面の繁雑化を回避するため1台の
みを図示しているが、通常は、複数台の端末が使用され
る。
FIG. 1 is a block diagram showing the configuration of an embodiment of a switching device for a communication processing device according to the present invention. Switching device 1, two communication processing devices 2 and 3, communication processing device external storage device 4, and switching device external storage device 5
And a host computer 6 and a terminal. FIG.
In the figure, only one terminal 7 is shown in order to avoid complication of the drawing, but normally, a plurality of terminals are used.

【0011】切り替え装置1は、主記憶イメージ格納手
段11と、主記憶イメージ転送手段12と、通信処理装
置状態管理手段13と、通信処理装置起動手段14と、
システム間通信路切り替え手段14と、回線切り替え手
段16とで構成されている。
The switching device 1 includes a main memory image storage means 11, a main memory image transfer means 12, a communication processing device state management means 13, a communication processing device starting means 14,
It is composed of an inter-system communication path switching means 14 and a line switching means 16.

【0012】通信処理装置2は、その主記憶部21内
に、端末構成情報とともに、端末構成情報・端末状態情
報同期手段22及び端末状態情報更新手段23を含んで
おり、また通信処理装置3も、主記憶部31内に、端末
構成情報とともに、端末構成情報・端末状態情報同期手
段32及び端末状態情報更新手段33を含んでいる。
The communication processing device 2 includes, in the main storage section 21, terminal configuration information / terminal state information synchronizing means 22 and terminal state information updating means 23 together with the terminal configuration information. The main storage unit 31 includes terminal configuration information / terminal state information synchronizing means 32 and terminal state information updating means 33 together with the terminal configuration information.

【0013】通信処理装置用外部記憶装置4は、端末状
態情報41、切り替え装置用外部記憶装置5は、端末構
成情報51,通信処理制御ソフトウェア52及び主記憶
イメージ展開情報53を含んでいる。
The communication processing device external storage device 4 includes terminal state information 41, and the switching device external storage device 5 includes terminal configuration information 51, communication processing control software 52, and main storage image development information 53.

【0014】次に、このように構成された本実施例の通
信処理装置の動作について、図2〜図6を参照して説明
する。
Next, the operation of the communication processing apparatus of the present embodiment thus constructed will be described with reference to FIGS.

【0015】図2は、通信処理装置2がホスト計算機6
および端末7と通信を開始する前の、切り替え装置1、
通信処理装置2および切り替え装置用外部記憶装置5の
間の処理の流れを示すブロック図である。切り替え装置
1内の主記憶イメージ格納手段11は、切り替え総理用
外部記憶装置5内の端末構成情報51と通信処理制御ソ
フトウェア52を読みだし、通信処理装置2内の主記憶
部21に転送/展開し、完了後その主記憶イメージを読
みだし、切り替え装置用外部記憶装置5に主記憶イメー
ジ展開情報53として格納する。その後、切り替え装置
1内の通信処理装置状態管理手段13は、通信処理装置
2の状態を「現用」、通信処理装置3の状態を「予備」
とマークする。
In FIG. 2, the communication processing device 2 is a host computer 6.
And the switching device 1 before starting communication with the terminal 7,
4 is a block diagram showing a flow of processing between the communication processing device 2 and the switching device external storage device 5. FIG. The main memory image storage means 11 in the switching device 1 reads out the terminal configuration information 51 and the communication processing control software 52 in the switching prime external storage device 5, and transfers / expands to the main memory portion 21 in the communication processing device 2. After completion, the main memory image is read out and stored in the switching device external memory device 5 as main memory image expansion information 53. After that, the communication processing device state management means 13 in the switching device 1 sets the state of the communication processing device 2 to “active” and the state of the communication processing device 3 to “standby”.
Mark.

【0016】図3は、切り替え装置1と通信処理装置2
を経由して、端末7がホスト計算機6と通信している状
態において、通信処理装置2内の端末状態情報更新手段
23と通信処理装置用外部記憶装置4内の端末状態情報
41の間の処理の流れを示すブロック図である。端末状
態情報更新手段23は、端末7とホスト計算機6との間
でデータが授受される度に端末状態情報41内における
端末7の状態情報を更新して記憶する。
FIG. 3 shows a switching device 1 and a communication processing device 2.
Processing between the terminal state information updating means 23 in the communication processing device 2 and the terminal state information 41 in the communication processing device external storage device 4 while the terminal 7 is communicating with the host computer 6 via It is a block diagram showing the flow of. The terminal status information updating means 23 updates and stores the status information of the terminal 7 in the terminal status information 41 every time data is exchanged between the terminal 7 and the host computer 6.

【0017】図4は、切り替え装置1が通信処理装置2
の障害を検知し、現用の通信処理装置を通信処理装置3
に切り替えるまでの処理の流れを示すブロック図であ
る。切り替え装置1が通信処理装置2の障害を検知する
と、切り替え装置1内の主記憶イメージ転送手段12が
切り替え装置用外部記憶装置5内の主記憶イメージ展開
情報53を読み出し、通信処理装置3内の主記憶部31
に転送/展開する。転送完了後、通信処理装置3内の端
末構成情報・端末状態情報同期手段32は通信処理装置
用外部記憶装置4内の端末状態情報41と主記憶部内の
各端末毎の状態情報の同期をとる。
In FIG. 4, the switching device 1 includes the communication processing device 2
Failure is detected and the current communication processing device is set to the communication processing device 3
It is a block diagram which shows the flow of a process until it switches to. When the switching device 1 detects a failure in the communication processing device 2, the main memory image transfer means 12 in the switching device 1 reads the main memory image expansion information 53 in the switching device external storage device 5, and the main memory image expansion information 53 in the communication processing device 3 is read. Main memory 31
Transfer / deploy to. After the transfer is completed, the terminal configuration information / terminal status information synchronization means 32 in the communication processing device 3 synchronizes the terminal status information 41 in the communication processing device external storage device 4 with the status information of each terminal in the main storage part. .

【0018】その後、切り替え装置1内のシステム間通
信路切り替え手段15は通信処理装置2に接続されてい
るホスト計算機6とのシステム間通信路を通信処理装置
3に切り替える。また、切り替え装置1内の回線切り替
え手段16は通信処理装置2に接続されている端末7と
の回線を通信処理装置3に切り替える。
Thereafter, the intersystem communication path switching means 15 in the switching apparatus 1 switches the intersystem communication path with the host computer 6 connected to the communication processing apparatus 2 to the communication processing apparatus 3. The line switching means 16 in the switching device 1 switches the line with the terminal 7 connected to the communication processing device 2 to the communication processing device 3.

【0019】図5は、通信処理装置3を「現用」として
起動するまでの処理の流れを示すブロック図である。切
り替え装置1内の通信処理装置状態管理手段13は、切
り替わった通信処理装置3の状態を「現用」、障害にな
った通信処理装置2の状態を「予備」とマークし、通信
処理装置起動手段14は、「現用」とマークされた通信
処理装置3を起動し通信を開始する。
FIG. 5 is a block diagram showing the flow of processing until the communication processing device 3 is activated as "active". The communication processing device state management means 13 in the switching device 1 marks the switched communication processing device 3 state as “active” and the failed communication processing device 2 state as “standby”, and sets the communication processing device activation means. 14 starts the communication processing device 3 marked as "active" and starts communication.

【0020】図6は、切り替え装置1と通信処理装置3
を経由して、端末7がホスト計算機6と通信している状
態で、通信処理装置3内の端末状態情報更新手段33と
通信処理装置用外部記憶装置4内の端末状態情報41の
間の処理の流れを示すブロック図である。
FIG. 6 shows the switching device 1 and the communication processing device 3.
Processing between the terminal state information updating means 33 in the communication processing device 3 and the terminal state information 41 in the communication processing device external storage device 4 while the terminal 7 is communicating with the host computer 6 via It is a block diagram showing the flow of.

【0021】端末状態情報更新手段33は、端末7とホ
スト計算機6とのデータが流れる度に端末状態情報41
内の端末7の状態情報を更新して記憶する。
The terminal status information updating means 33 is provided with the terminal status information 41 each time data is exchanged between the terminal 7 and the host computer 6.
The state information of the terminal 7 therein is updated and stored.

【0022】これ以後は、通信処理装置3が障害になっ
た場合にも、図4に示す場合と同様の処理が行われる。
After that, even if the communication processing device 3 fails, the same processing as that shown in FIG. 4 is performed.

【0023】以上の実施例においては、通信処理装置は
2台のみの場合であるが、2台以上の現用通信処理装置
に対して1台の予備の通信処理装置を備えた場合につい
ても本発明は適用し得る。その場合には、一の現用通信
処理装置がサービスする端末の範囲は特定化されている
ので、主記憶部21における端末構成情報は当然に、そ
の範囲内の端末についてのものとなり、予備の通信処理
装置の主記憶部における端末構成情報により、いずれの
現用通信処理装置が障害により切り替ったかを知ること
ができる。
In the above embodiments, the number of communication processing devices is only two, but the present invention is also applicable to the case where one spare communication processing device is provided for two or more active communication processing devices. Can be applied. In that case, since the range of terminals serviced by one active communication processing device is specified, the terminal configuration information in the main storage unit 21 is naturally for terminals within that range, and the backup communication is performed. From the terminal configuration information in the main storage unit of the processing device, it is possible to know which working communication processing device has been switched due to a failure.

【0024】[0024]

【発明の効果】以上説明したように本発明は、通信処理
装置の障害によるネットワークトラブルの発生時に、通
信処理装置の切り替え装置の処理として、通信処理装置
の障害を検知し、予備の通信処理装置に障害になった通
信処理装置の端末情報を送り込み、障害になった通信処
理装置経由でつながっていた端末が接続されている回線
群を予備の通信処理装置側に引き込み、通信を再開する
構成としたため、ホスト計算機での切り替え処理による
負荷を軽減することができるという効果がある。
As described above, according to the present invention, when a network trouble occurs due to a failure of the communication processing device, the failure of the communication processing device is detected as the processing of the switching device of the communication processing device, and the standby communication processing device is detected. In this configuration, the terminal information of the communication processing device that has failed is sent to the backup communication processing device, and the line group to which the terminal that was connected via the communication processing device that has failed is connected to the backup communication processing device side. Therefore, there is an effect that the load due to the switching processing in the host computer can be reduced.

【0025】[0025]

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例の構成を示すブロック図であ
る。
FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

【図2】通信処理装置2がホスト計算機6および端末7
と通信を開始する前の、切り替え装置1、通信処理装置
2および切り替え装置用外部記憶装置5の間の処理の流
れを説明するためのブロック図である。
FIG. 2 shows a communication processing device 2 in which a host computer 6 and a terminal 7 are connected.
FIG. 3 is a block diagram for explaining a flow of processing between the switching device 1, the communication processing device 2, and the switching device external storage device 5 before starting communication with.

【図3】切り替え装置1と通信処理装置2を経由して、
端末7がホスト計算機6と通信している状態で、通信処
理装置2内の端末状態情報更新手段23と通信処理装置
用外部記憶装置4内の端末状態情報41の間の処理の流
れを説明するためのブロック図である。
[FIG. 3] Via a switching device 1 and a communication processing device 2,
The flow of processing between the terminal state information updating means 23 in the communication processing device 2 and the terminal state information 41 in the communication processing device external storage device 4 while the terminal 7 is communicating with the host computer 6 will be described. It is a block diagram for.

【図4】切り替え装置1が通信処理装置2の障害を検知
し通信処理装置3に切り替えるまでの処理の流れを説明
するためのブロック図である。
FIG. 4 is a block diagram for explaining a flow of processing until the switching device 1 detects a failure of the communication processing device 2 and switches to the communication processing device 3.

【図5】通信処理装置3を「現用」として起動するまで
の処理の流れを説明するためのブロック図である。
FIG. 5 is a block diagram for explaining a flow of processing until the communication processing device 3 is activated as “active”.

【図6】切り替え装置1と通信処理装置3を経由して、
端末7がホスト計算機6と通信している状態で、通信処
理装置3内の端末状態情報更新手段33と通信処理装置
用外部記憶装置4内の端末状態情報41の間の処理の流
れを説明するためのブロック図である。
FIG. 6 is a diagram showing a case where a switching device 1 and a communication processing device 3 are used,
A flow of processing between the terminal state information updating means 33 in the communication processing device 3 and the terminal state information 41 in the communication processing device external storage device 4 while the terminal 7 is communicating with the host computer 6 will be described. It is a block diagram for.

【符号の説明】[Explanation of symbols]

1 切り替え装置 2 通信処理装置 3 通信処理装置 4 通信処理装置用外部記憶装置 5 切り替え装置用外部記憶装置 6 ホスト計算機 11 主記憶イメージ格納手段 12 主記憶イメージ転送手段 13 通信処理装置状態管理手段 14 通信処理装置起動手段 15 システム間通進路切り替え手段 16 回線切り替え手段 21 主記憶部 22 端末構成情報・端末状態情報同期手段 23 端末状態情報更新手段 31 主記憶部 32 端末構成情報・端末状態情報同期手段 33 端末状態情報更新手段 41 端末状態情報 51 端末構成情報 52 通信処理制御ソフトウェア 53 主記憶イメージ展開情報 DESCRIPTION OF SYMBOLS 1 switching device 2 communication processing device 3 communication processing device 4 external storage device for communication processing device 5 external storage device for switching device 6 host computer 11 main storage image storage means 12 main storage image transfer means 13 communication processing device state management means 14 communication Processing device starting means 15 Inter-system communication route switching means 16 Line switching means 21 Main storage unit 22 Terminal configuration information / terminal state information synchronizing means 23 Terminal state information updating means 31 Main storage unit 32 Terminal configuration information / terminal state information synchronizing means 33 Terminal status information updating means 41 Terminal status information 51 Terminal configuration information 52 Communication processing control software 53 Main memory image development information

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】切り替え装置を介して、ホスト計算機およ
び端末と予備の通信処理装置および現用通信処理装置と
が接続されたシステムにおける通信処理装置の切り替え
装置において、 前記切り替え装置は、 現用通信処理装置ごとに端末情報および通信処理制御ソ
フトウェアを展開した主記憶のイメージを予め外部記憶
装置に格納する主記憶イメージ格納手段と、 通信処理装置ごとの状態管理情報を基に、現用通信処理
装置の障害検知時に、障害になった通信処理装置に対応
する端末構成情報および通信処理制御ソフトウェアを展
開した主記憶イメージを格納した内容を外部記憶装置か
ら読みだし、予備の通信処理装置に転送する主記憶イメ
ージ転送手段と、 ホスト計算機と障害になった現用通信処理装置の間のシ
ステム間通信路をホスト計算機に切り替えることを検知
されることなく、予備の通信処理装置側へ切り替えるシ
ステム間通信路切り替え手段と、 端末と障害になった現用通信処理装置の間の回線を、端
末に切り替えることを検知されることなく予備の通信処
理装置側へ切り替える回線切り替え手段と、 前記処理後、「予備」だった通信処理装置の状態管理情
報を「現用」とし、障害になった現用通信処理装置の状
態管理情報を「予備」と更新する通信処理装置状態管理
手段と、 通信処理装置の状態管理情報が「予備」から「現用」に
変わった通信処理装置に処理の開始を指示する通信処理
装置起動手段を有し、 また、前記通信処理装置ごとに、 端末構成情報にもとづき、端末ごとの状態を外部記憶装
置に憶える端末状態情報更新手段と、 切り替え装置から端末構成情報と通信処理制御ソフトウ
ェアを展開した主記憶イメージの転送が終了した時に、
端末構成情報外部記憶装置にある端末状態情報を同期づ
ける端末構成情報・端末状態情報同期手段とを有するこ
とを特徴とする通信処理装置の切り替え装置。
1. A switching device of a communication processing device in a system in which a host computer and a terminal are connected to a backup communication processing device and a current communication processing device via a switching device, wherein the switching device is a current communication processing device. Failure detection of the active communication processing device based on the main memory image storage means that stores the terminal information and the image of the main memory in which the communication processing control software is expanded in advance in the external storage device, and the state management information for each communication processing device. Occasionally, the contents of the main memory image in which the terminal configuration information and communication processing control software corresponding to the failed communication processing device are loaded are read from the external storage device and transferred to the backup communication processing device. Means and the inter-system communication path between the host computer and the failed active communication processing unit. Detecting that the line between the inter-system communication path switching unit that switches to the backup communication processing unit side and the terminal and the active communication processing unit that has failed without being detected to switch to the computer is switched to the terminal Line switching means for switching to the standby communication processing device side without being processed, and the status management information of the communication processing device that was "standby" after the above processing is set to "active" and the status management of the active communication processing device that has failed Communication processing device status management means for updating the information to "spare" and communication processing device starting means for instructing the communication processing device whose status management information of the communication processing device has changed from "spare" to "active" to start processing. Also, for each communication processing device, based on the terminal configuration information, terminal state information updating means for storing the state of each terminal in an external storage device, and a terminal configuration from the switching device. When the transfer of the main memory image obtained by developing the multi-address communication process control software has been completed,
A terminal configuration information / terminal state information synchronization means for synchronizing the terminal state information in an external storage device with a terminal configuration information / terminal state information synchronization means.
JP6204778A 1994-08-30 1994-08-30 Switching device of communication processor Pending JPH0869429A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6204778A JPH0869429A (en) 1994-08-30 1994-08-30 Switching device of communication processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6204778A JPH0869429A (en) 1994-08-30 1994-08-30 Switching device of communication processor

Publications (1)

Publication Number Publication Date
JPH0869429A true JPH0869429A (en) 1996-03-12

Family

ID=16496197

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6204778A Pending JPH0869429A (en) 1994-08-30 1994-08-30 Switching device of communication processor

Country Status (1)

Country Link
JP (1) JPH0869429A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5831440A (en) * 1981-08-19 1983-02-24 Fujitsu Ltd Automatic switching system for remote communication control processing device
JPH01237744A (en) * 1988-03-17 1989-09-22 Nec Corp Switching system for communication control device
JPH04360242A (en) * 1991-06-06 1992-12-14 Hitachi Ltd Device and method for switching systems in duplexed system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5831440A (en) * 1981-08-19 1983-02-24 Fujitsu Ltd Automatic switching system for remote communication control processing device
JPH01237744A (en) * 1988-03-17 1989-09-22 Nec Corp Switching system for communication control device
JPH04360242A (en) * 1991-06-06 1992-12-14 Hitachi Ltd Device and method for switching systems in duplexed system

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