JPH01123356A - Mutual supervision control system - Google Patents

Mutual supervision control system

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Publication number
JPH01123356A
JPH01123356A JP62282352A JP28235287A JPH01123356A JP H01123356 A JPH01123356 A JP H01123356A JP 62282352 A JP62282352 A JP 62282352A JP 28235287 A JP28235287 A JP 28235287A JP H01123356 A JPH01123356 A JP H01123356A
Authority
JP
Japan
Prior art keywords
telegram
communication path
message
monitoring
physical communication
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.)
Granted
Application number
JP62282352A
Other languages
Japanese (ja)
Other versions
JPH0625978B2 (en
Inventor
Toshio Imai
今井 登志夫
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 Corp
Original Assignee
NEC Corp
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 Corp filed Critical NEC Corp
Priority to JP62282352A priority Critical patent/JPH0625978B2/en
Publication of JPH01123356A publication Critical patent/JPH01123356A/en
Publication of JPH0625978B2 publication Critical patent/JPH0625978B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Debugging And Monitoring (AREA)
  • Multi Processors (AREA)

Abstract

PURPOSE:To supervise a targeted operation even when a fault is generated in a communication path by transmitting the same telegram to plural physical communication paths in communication lines in parallel after attaching sequence information, and adopting a telegram arriving first and deleting the one arriving later. CONSTITUTION:A transmission side, when a supervisory telegram transmission request being received by a logical communication path transmission control means 13, attaches a value representing the sequence of the telegram on the telegram by acquiring a current time value from a time acquiring means 18-1, and transmits the telegram to plural corresponding physical communication paths via physical communication path telegram transfer control means 12-1-12-4. In a reception side, a logical communication reception control means 24 receiving the supervisory telegram compares a current telegram identifier (time value) that is the latent value (the maximum value) of the logical communication path with the size of the telegram identifier in a received telegram, and when the former is equal to or less than the latter, control to delete the telegram is performed by assuming that the telegram has been received. In such a way, it is possible to supervise the targeted operation without generating delay even when the fault is generated in the physical communication path.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明はホストコンビコータ間通信に利用する。[Detailed description of the invention] [Industrial application field] The present invention is used for communication between host and combination coaters.

本発明は、ホストコンピュータ間の通信機能による相手
ホストコンピュータ自身または相手ホストコンピュータ
上の相互に対応するサブシステムの動作の監視制御に関
する。特に、通信パス障害となっても遅滞なく目的の動
作の監視ができる相互監視制御方式に関する。
The present invention relates to monitoring and control of the operations of mutually corresponding subsystems on the other host computer itself or on the other host computer using a communication function between host computers. In particular, the present invention relates to a mutual monitoring control system that allows target operations to be monitored without delay even if a communication path fails.

〔概要〕〔overview〕

本発明はホストコンビエータ間通信機能を利用して相手
ホストコンピュータ自身または相手ホストコンピュータ
上の相互に対応するサブシステムの動作を監視するホス
トコンビ二−タ間の相互監視制御方式において、 相互監視のための複数の物理通信パスに対して同−の監
視電文を同時に送信し、受信側は複数の物理通信パスの
うち先着電文をもって監視成立とし、以降到着する同一
の電文を揄てるように相互監視制御することにより、 物理通信パスが障害となっても遅滞なく目的とする対象
の動作の監視ができ、信頼性の高い相互監視システムを
構築できるようにしたものである。
The present invention provides a mutual monitoring control method between host combinators that monitors the operations of the other host computer itself or mutually corresponding subsystems on the other host computer using the communication function between the host combinators. The same monitoring message is sent simultaneously to multiple physical communication paths, and the receiving side considers the first message that arrives among the multiple physical communication paths to be successful, and mutual monitoring is performed so that the same message that arrives subsequently is not detected. Through this control, the operation of the target object can be monitored without delay even if there is a failure in the physical communication path, making it possible to construct a highly reliable mutual monitoring system.

〔従来の技術〕[Conventional technology]

従来、この種のホストコンピュータ開通信によるホスト
コンピュータの相互監視制御は、監視電文用の物理通信
パスを複数割り当て、そのうちの1本を使用して監視の
ための通信を行い、送信障害が発生すると残った物理通
信パスで再度送信を行うようにして監視制御していた。
Conventionally, this type of mutual monitoring control between host computers through open communication between host computers allocates multiple physical communication paths for monitoring messages, uses one of them to perform communication for monitoring, and when a transmission failure occurs, Monitoring and control was performed by retrying transmission using the remaining physical communication path.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

上述した従来のホストコンピュータ間通信によるホスト
コンピュータ相互監視制御方式は、物理送信パスの一つ
が障害となったときに、この障害を検出したのち残った
別の物理送信パスを使用して監視のための電文を送信す
るようになっていた。
The above-mentioned conventional host computer mutual monitoring control method using communication between host computers detects this failure when one of the physical transmission paths becomes a failure, and then uses another remaining physical transmission path for monitoring. It was supposed to send a telegram.

このようなホストコンピュータ間通信を利用した相互監
視は一定時間間隔での電文の送受信により成り立ってい
るが、前述したように一つの物理通信パスの障害がこの
一定時間間隔内に検出できない場合がある欠点を有して
いる。
Mutual monitoring using communication between host computers is performed by sending and receiving messages at fixed time intervals, but as mentioned above, a failure in one physical communication path may not be detected within this fixed time interval. It has its drawbacks.

本発明はこのような問題を解決して、物理通信パスに障
害が発生したときに時間的に遅滞することなく相互監視
の一定時間間隔内に障害を検出することができる方式を
提供することを目的とする。
The present invention solves these problems and provides a method that can detect a failure within a fixed time interval of mutual monitoring without any time delay when a failure occurs in a physical communication path. purpose.

〔問題点を解決するための手段〕[Means for solving problems]

本発明は、一つのホストコンビ二一夕と他のホストコン
ピュータとの間に通信回線が接続され、上記二つのホス
トコンピュータにはそれぞれ相互監視のための監視電文
を上記通信回線を介して送信する手段および受信する手
段を含む相互監視制御方式において、上記送信する手段
は、上記通信回線の中の複数の物理通信パスに同一の電
文を順序性情報を付して並列的に送信する手段を含み、
上記通信する手段は、上記複数の物理通信パスを介して
到来する先着の電文を採り後着の電文を捨てる手段を含
むことを特徴とする。
In the present invention, a communication line is connected between one host computer and another host computer, and a monitoring message for mutual monitoring is sent to each of the two host computers via the communication line. In the mutual monitoring control system including means and means for receiving, the means for transmitting includes means for transmitting the same message in parallel with sequential information attached to a plurality of physical communication paths in the communication line. ,
The communication means is characterized in that it includes means for picking up the first message that arrives via the plurality of physical communication paths and discarding the last message that arrives.

順序性情報は、時刻識別子であり、また、電文の通番で
あることが好ましい。
Preferably, the order information is a time identifier and a serial number of the message.

〔作用〕[Effect]

ホストコンピュータ間の物理通信パスに対して電文の送
受信を制御し、物理通信パスのいくうかと一つの論理通
信パスとを対応させることを定義し管理する。この複数
の物理通信パスに対応付けられた一つの論理通信パスを
割当であるいは解放し、さらに、システムまたはサブシ
ステムから論理通信パスを介して相手ホストコンビエー
タ上の監視実行対象に対して監視電文の送信要求がなさ
れたとき割り当てられた複数の物理通信パスに対して同
一の監視電文を並列的に送信する。相手ホストコンピュ
ータから送信された監視電文は一つの論理通信パスに対
応する物理通信パスのうちの一つから受信したときにこ
れをもって監視成立として当該ホストコンピュータ上の
監視実行対象に通知され、残りの対応する物理通信パス
から送れて到着する対応した監視電文は揄てるように制
御される。
It controls the transmission and reception of messages over the physical communication paths between host computers, and defines and manages the correspondence between several physical communication paths and one logical communication path. One logical communication path associated with these multiple physical communication paths is allocated or released, and a monitoring message is sent from the system or subsystem to the monitoring execution target on the other host combinator via the logical communication path. The same monitoring message is transmitted in parallel to multiple physical communication paths allocated when a transmission request is made. When the monitoring message sent from the other host computer is received from one of the physical communication paths corresponding to one logical communication path, the monitoring execution target on the host computer is notified that monitoring has been established, and the remaining Corresponding monitoring messages sent and arriving from corresponding physical communication paths are controlled to be tampered with.

このようにして、物理通信パスが障害となっても遅延な
く目的の動作の監視ができ、信頼性の高い相互監視シス
テムを構築することができる。
In this way, even if the physical communication path becomes a failure, the intended operation can be monitored without delay, and a highly reliable mutual monitoring system can be constructed.

〔実施例〕〔Example〕

(第一実施例) 本発明実施例方式を図面に基づいて説明する。 (First example) An embodiment of the present invention will be explained based on the drawings.

第1図は本発明方式の構成の一例を示すブロック図であ
る。
FIG. 1 is a block diagram showing an example of the configuration of the system of the present invention.

本実施例は一つのホストコンピュータ11と他のホスト
コンピュータ21が、監視のための通信電文を伝送する
物理通信パスL 2.3.4と、この物理通信パスの3
および4に対応した論理通信パス5によって接続される
In this embodiment, one host computer 11 and another host computer 21 have a physical communication path L 2.3.4 for transmitting communication messages for monitoring, and 3 of this physical communication path.
and 4 are connected by a logical communication path 5 corresponding to 4.

ホストコンピュータ11および21には、物理通信パス
1.2.3.4にそれぞれ対応し電文の送受信を制御す
る物理通信パス電文送受信制御手段12−1.12−2
.12−3.12−4および22−1.22−2.22
−3.22−4と、物理通信パス1.2.3.4のいく
つかと一つの論理通信パス5とを対応させることを定義
し管理する物理・論理通信パス多重化対応定義・管理手
段16.26と、複数の物理通信パス1.2.3.4と
対応づけられた一つの論理通信パスを割当ておよび解放
する物理・論理通信パス割当・解放手段15.25と、
相手ホストコンピュータ上の監視実行対象に対して監視
電文の送信要求がなされたときに割当てられた複数の物
理通信バス1.2.3.4に対して同一の監視電文を並
列的に送信する論理通信パス送信制御手段13.23と
、相手ホストコンピュータから送信された監視電文を一
つの論理通信パス5に対応する物理通信バス1.2.3
.4のうちの一つから受信したときこれをもって監視成
立として当該ホストコンビエータ上の監視実行対象に通
知し、残りの対応する物理通信バス1.2.3.4から
遅れて到着する対応した監視電文を揄でるように制御す
る論理通信パス受信制御手段14.24と、ホストコン
ピュータ11および21のそれぞれに含まれる監視実行
対象プログラム17.27と、送信する監視電文に順序
性情報としての時刻を識別子として付与する時刻取得手
段18−1.28−1とを備える。
The host computers 11 and 21 each have a physical communication path message transmission/reception control means 12-1.12-2 that corresponds to the physical communication path 1.2.3.4 and controls the transmission and reception of messages.
.. 12-3.12-4 and 22-1.22-2.22
-3.22-4, some of the physical communication paths 1.2.3.4, and one logical communication path 5 are defined and managed by physical/logical communication path multiplexing correspondence definition/management means 16 .26, and physical/logical communication path allocation/release means 15.25 for allocating and releasing one logical communication path associated with a plurality of physical communication paths 1.2.3.4;
Logic for transmitting the same monitoring message in parallel to multiple physical communication buses 1.2.3.4 allocated when a request to send a monitoring message is made to a target to be monitored on a remote host computer A communication path transmission control means 13.23 and a physical communication bus 1.2.3 that transmits a monitoring message sent from a partner host computer to one logical communication path 5.
.. When received from one of the physical communication buses 1.2.3.4, the monitoring execution target on the host combiator is notified that the monitoring is established, and the corresponding monitoring that arrives late from the remaining corresponding physical communication buses 1.2.3.4. The logical communication path reception control means 14.24 that controls the messages so as to read them, the monitoring execution target programs 17.27 included in each of the host computers 11 and 21, and the time as order information in the monitoring messages to be sent. and a time acquisition means 18-1.28-1 that is assigned as an identifier.

次にその動作について図面を参照して説明する。Next, its operation will be explained with reference to the drawings.

まず、ホストコンピュータ11とホストコンピュータ2
10間でホストコンピュータ間の通信パスを利用して相
互の稼働状態を監視するものとする。物理・論理通信バ
ス多重化対応定義・管理手段16および26により、ホ
ストコンビエータ11と21は物理通信バス3および4
を利用し、かつこの物理通信バス3および4に論理通信
パス5を対応するように定義する。そしてホストコンピ
ュータ11と21で互いの監視を開始する時点で論理通
信パス5へ定義された実際の物理通信バスの割当てを物
理・論理通信バス割当・解放手段15 (25)に対し
監視実行対象プログラム17 (27)が行う。
First, host computer 11 and host computer 2
10 monitor each other's operating status using communication paths between host computers. The physical/logical communication bus multiplexing support definition/management means 16 and 26 allow the host combinators 11 and 21 to control the physical communication buses 3 and 4.
A logical communication path 5 is defined to correspond to the physical communication buses 3 and 4. At the time when the host computers 11 and 21 start monitoring each other, the physical/logical communication bus allocation/release means 15 (25) monitors and executes the actual allocation of the physical communication bus defined to the logical communication path 5. 17 (27) performs.

この要求を受けて物理・論理通信バス割当・解放手段1
5 (25)は物理・論理通信バス多重化対応定義・管
理手段16’ (26)より対応情報を人手し論理通信
パス5に対して物理通信バス3および4を割当て利用可
能な状態とする。このとき同時に時刻取得手段18−1
  (28−1)に立上がり通知を行うことにより電文
識別子が初期状態となる。以降監視実行対象プログラム
17 (27)から監視電文が相手ホストコンピュータ
に送られることとなる。
In response to this request, physical/logical communication bus allocation/release means 1
5 (25) manually obtains the correspondence information from the physical/logical communication bus multiplexing correspondence definition/management means 16' (26) and allocates the physical communication buses 3 and 4 to the logical communication path 5 to make them usable. At this time, time acquisition means 18-1
(28-1) By issuing a rising notification, the message identifier is brought to an initial state. Thereafter, a monitoring message will be sent from the monitoring execution target program 17 (27) to the other host computer.

同様に相手ホストコンピュータの監視実行対象プログラ
ム27 (17)から監視電文を受けとり互いにその稼
働状況を監視する。
Similarly, they receive a monitoring message from the monitoring execution target program 27 (17) of the other host computer and mutually monitor their operating status.

次に、監視のための電文を一つの論理通信パスに対して
操作することにより対応する複数の物理通信バスを通し
て同時に送信され、前記複数の物理通信バスのうち先に
到着したパスの電文をもって監視成立という動作につい
て説明する。第2図は論理通信パス送信制御手段の処理
概要を、第3図は論理通信パス受信制御手段の処理概要
を示したものである。
Next, by manipulating the message for monitoring on one logical communication path, the message is simultaneously transmitted through the corresponding plural physical communication buses, and the message of the path that arrived first among the plurality of physical communication buses is used for monitoring. The operation of establishment will be explained. FIG. 2 shows a processing overview of the logical communication path transmission control means, and FIG. 3 shows a processing overview of the logical communication path reception control means.

まず送信側として第2図に示すように、監視電文送信要
求を論理通信パス送信制御手段13 (23)が受ける
と前記電文の順序性を示す値を時刻取得手段18−1 
 (2B−1)よりカレント時刻値を人手し電文に付与
し、対応する複数の物理通信バスに対して物理通信パス
電文送受信制御手段12−1.12−2.12−3.1
2−4または22−1.22−2.22−3.22−4
を介して送信する。このとき複数の物理通信バスのうち
一つでも送信が確立すれば当該監視電文の送信は成・立
したものとして処理する。
First, as shown in FIG. 2 on the transmitting side, when the logical communication path transmission control means 13 (23) receives a supervisory message transmission request, the time acquisition means 18-1 acquires a value indicating the order of the message.
(2B-1), the current time value is manually added to the message, and the physical communication path message transmission/reception control means 12-1.12-2.12-3.1 is sent to the corresponding plural physical communication buses.
2-4 or 22-1.22-2.22-3.22-4
Send via. At this time, if transmission is established for even one of the plurality of physical communication buses, the transmission of the monitoring message is considered to have been completed.

次に、受信側として第3図に示すように、監視電文を受
信した論理通信パス受信制御手段14 (24)は当該
論理通信パスの最新(最大)値であるカレント電文識別
子(時刻値)と受信した電文中の電文識別子の大きさを
比較し等しいか小さければ当該電文は既に到着済として
捨てるように制御する。
Next, as shown in FIG. 3 on the receiving side, the logical communication path reception control means 14 (24) that received the monitoring message uses the current message identifier (time value) that is the latest (maximum) value of the logical communication path. The sizes of the message identifiers in the received messages are compared, and if they are equal or smaller, the message is considered to have already arrived and is discarded.

大きければ監視実行対象に通知し、当該論理パスのカレ
ント電文識別子を更新する。
If it is larger, the monitoring target is notified and the current message identifier of the logical path is updated.

(第二実施例) 第4図は第1図に示す順序性情報として時刻識別子を付
与する時刻取得手段18−1.28−1に代えて電文の
通番を付与する電文通番制御手段18−2.28−2を
備えたものである。
(Second Embodiment) FIG. 4 shows a message serial number control means 18-2 which assigns a serial number to a message in place of the time acquisition means 18-1 and 28-1 which assigns a time identifier as sequential information shown in FIG. .28-2.

この場合も、監視のための電文を一つの論理通信パスに
対して操作することにより対応する複数の物理通信パス
を通して同時に送信され、前記複数の物理通信パスのう
ち先に到着したパスの電文をもって監視成立という動作
について説明する。
In this case as well, by manipulating the monitoring message for one logical communication path, it is simultaneously transmitted through multiple corresponding physical communication paths, and the message of the path that arrived first among the multiple physical communication paths is used. The operation of monitoring establishment will be explained.

第5図は論理通信パス送信制御手段の処理の概要を、第
6図はその受信制御手段の処理の概要を示す図である。
FIG. 5 is a diagram showing an overview of the processing by the logical communication path transmission control means, and FIG. 6 is a diagram showing an overview of the processing by the reception control means.

まず送信側として第5図に示すように、監視電文送信要
求を論理通信パス送信制御手段13 (23)が受ける
と前記電文の順序性情報を電文通番制御手段18−2 
(28−2)より通番値を人手する。このとき通番値の
オーバーフローをチエツクしオーバーフローしているな
らば相手ホストコンピュータに一旦通番リセットのため
の電文を送信したのち改めて通番値を電文通番制御手段
18−2.28−2より入手する。そして目的の当該監
視電文に前記通番値を付与し、対応する複数の物理通信
パスに対して物理通信パス電文送受信制御手段12−1
.12−2.12−3.12−4または22−1.22
−2.22−3.22−4を介して送信する。このとき
複数の物理通信パス1.2.3.4のうち一つでも送信
が確立すれば当該監視電文の送信は成立したように処理
する。
First, as shown in FIG. 5 on the transmitting side, when the logical communication path transmission control means 13 (23) receives a supervisory message transmission request, it transfers the order information of the message to the message serial number control means 18-2.
From (28-2), manually enter the serial number value. At this time, an overflow of the serial number value is checked, and if there is an overflow, a message for resetting the serial number is once sent to the other host computer, and then a new serial number value is obtained from the message serial number control means 18-2.28-2. Then, the serial number value is given to the target monitoring message, and the physical communication path message transmission/reception control means 12-1
.. 12-2.12-3.12-4 or 22-1.22
-2.22-3.22-4. At this time, if transmission is established for any one of the plurality of physical communication paths 1.2.3.4, it is processed as if the transmission of the monitoring message was established.

次に受信側として第6図に示すように、監視電文を受信
した論理通信パス受信制御手段14 (24)は、まず
、通番オーバーフロー制御のためのリセット電文か否か
をチエツクし、リセット電文であれば当該論理通信パス
のカレント電文通番(最大値)をリセットし次の電文の
受信を待つ。そして次に受信した電文がリセット電文で
なければ当該電文中の通番の値とカレント電文通番の値
を比較し、等しいか小さければ当該電文は既に到着済と
して捨てるよう制御する。大きければ監視実行対象に通
知し、当該論理パスのカレント電文通番値を更新する。
Next, as shown in FIG. 6 on the receiving side, the logical communication path reception control means 14 (24) that has received the monitoring message first checks whether or not it is a reset message for serial number overflow control. If so, reset the current message serial number (maximum value) of the logical communication path and wait for reception of the next message. If the next received message is not a reset message, the value of the serial number in the message is compared with the value of the current message serial number, and if they are equal or smaller, the message is considered to have already arrived and is discarded. If it is larger, the monitoring execution target is notified and the current message serial number value of the logical path is updated.

〔発明の効果〕〔Effect of the invention〕

以上説明したように本発明によれば、一つの物理通信パ
スが障害となっても通信パス障害に対する再送といった
時間的な遅滞を伴うことなく目的の動作の監視が可能と
なり、信頼性の高い相互監視システムの構築ができる効
果がある。
As explained above, according to the present invention, even if one physical communication path fails, the target operation can be monitored without any time delay such as retransmission due to communication path failure, and highly reliable mutual communication can be achieved. This has the effect of building a monitoring system.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明相互監視制御方式の順序性情報に時刻識
別子を用いた例を示すブロック構成図。 第2図は第1図に示す実施例の論理通信パス送信制御手
段の処理概要を示す図。 第3図は第1図に示す実施例の論理通信パス受信制御手
段の処理概要を示す図。 第4図は本発明相互監視制御方式の順序性情報に電文の
通番を用いた例を示すブロック構成図。 第5図は第4図に示す実施例の論理通信パス送信制御手
段の処理概要を示す図。 第6図は第4図に示す実施例の論理通信パス送信制御手
段の処理概要を示す図。 1.2.3.4・・・物理通信パス、5・・・論理通信
パス、11.21・・・ホストコンピュータ、12−1
.12−2.12−3.12−4.22−1.22−2
.22−3.22−4・・・物理通信パス電文送受信制
御手段、13.23・・・論理通信パス送信制御手段、
14.24・・・論理通信パス受信制御手段、15.2
5・・・物理・論理通信パス割当・解放手段、16.2
6・・・物理・論理通信パス多重化対応定義・管理手段
、17.27・・・監視実行対象プログラム、18−1
.28−1・・・時刻取得手段、1g−2,28−2・
・・電文通番制御手段。
FIG. 1 is a block diagram showing an example of using a time identifier as order information in the mutual monitoring control system of the present invention. FIG. 2 is a diagram showing an outline of processing of the logical communication path transmission control means of the embodiment shown in FIG. 1. FIG. 3 is a diagram showing a processing outline of the logical communication path reception control means of the embodiment shown in FIG. 1. FIG. 4 is a block diagram showing an example of using the serial number of a message as the order information of the mutual monitoring control system of the present invention. FIG. 5 is a diagram showing a processing outline of the logical communication path transmission control means of the embodiment shown in FIG. 4. FIG. 6 is a diagram showing a processing outline of the logical communication path transmission control means of the embodiment shown in FIG. 4. 1.2.3.4... Physical communication path, 5... Logical communication path, 11.21... Host computer, 12-1
.. 12-2.12-3.12-4.22-1.22-2
.. 22-3.22-4...Physical communication path message transmission/reception control means, 13.23...Logical communication path transmission control means,
14.24...Logical communication path reception control means, 15.2
5...Physical/logical communication path allocation/release means, 16.2
6...Physical/logical communication path multiplexing support definition/management means, 17.27...Monitoring execution target program, 18-1
.. 28-1... Time acquisition means, 1g-2, 28-2.
...Telegram serial number control means.

Claims (3)

【特許請求の範囲】[Claims] (1)一つのホストコンピュータと他のホストコンピュ
ータとの間に通信回線が接続され、 上記二つのホストコンピュータにはそれぞれ相互監視の
ための監視電文を上記通信回線を介して送信する手段お
よび受信する手段を含む 相互監視制御方式において、 上記送信する手段は、上記通信回線の中の複数の物理通
信パスに同一の電文を順序性情報を付して並列的に送信
する手段を含み、 上記通信する手段は、上記複数の物理通信パスを介して
到来する先着の電文を採り後着の電文を捨てる手段を含
む ことを特徴とする相互監視制御方式。
(1) A communication line is connected between one host computer and another host computer, and each of the two host computers has means for transmitting and receiving monitoring messages for mutual monitoring via the communication line. In the mutual monitoring control system including a means for transmitting, the means for transmitting includes a means for transmitting the same message in parallel with sequential information attached to a plurality of physical communication paths in the communication line, A mutual monitoring control system characterized in that the means includes means for collecting first-arriving messages that arrive via the plurality of physical communication paths and discarding later-arriving messages.
(2)順序性情報は、時刻識別子である特許請求の範囲
第(1)項に記載の相互監視制御方式。
(2) The mutual monitoring control system according to claim (1), wherein the ordinal information is a time identifier.
(3)順序性情報は、電文の通番である特許請求の範囲
第(1)項に記載の相互監視制御方式。
(3) The mutual monitoring control system according to claim (1), wherein the order information is a serial number of the message.
JP62282352A 1987-11-09 1987-11-09 Mutual monitoring control method Expired - Fee Related JPH0625978B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62282352A JPH0625978B2 (en) 1987-11-09 1987-11-09 Mutual monitoring control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62282352A JPH0625978B2 (en) 1987-11-09 1987-11-09 Mutual monitoring control method

Publications (2)

Publication Number Publication Date
JPH01123356A true JPH01123356A (en) 1989-05-16
JPH0625978B2 JPH0625978B2 (en) 1994-04-06

Family

ID=17651298

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62282352A Expired - Fee Related JPH0625978B2 (en) 1987-11-09 1987-11-09 Mutual monitoring control method

Country Status (1)

Country Link
JP (1) JPH0625978B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6242801B1 (en) 1995-05-11 2001-06-05 Rohm Co., Ltd. Semiconductor device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS615645A (en) * 1984-06-20 1986-01-11 Toshiba Corp Data transmission method
JPS61142831A (en) * 1984-12-17 1986-06-30 Hitachi Ltd Time division multiplexer
JPS62216440A (en) * 1986-03-17 1987-09-24 Fujitsu Ltd Communication control method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS615645A (en) * 1984-06-20 1986-01-11 Toshiba Corp Data transmission method
JPS61142831A (en) * 1984-12-17 1986-06-30 Hitachi Ltd Time division multiplexer
JPS62216440A (en) * 1986-03-17 1987-09-24 Fujitsu Ltd Communication control method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6242801B1 (en) 1995-05-11 2001-06-05 Rohm Co., Ltd. Semiconductor device

Also Published As

Publication number Publication date
JPH0625978B2 (en) 1994-04-06

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