JPH0230246A - System for monitoring fault of network system - Google Patents
System for monitoring fault of network systemInfo
- Publication number
- JPH0230246A JPH0230246A JP63179036A JP17903688A JPH0230246A JP H0230246 A JPH0230246 A JP H0230246A JP 63179036 A JP63179036 A JP 63179036A JP 17903688 A JP17903688 A JP 17903688A JP H0230246 A JPH0230246 A JP H0230246A
- Authority
- JP
- Japan
- Prior art keywords
- control station
- supervisory control
- network
- nodes
- network system
- 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
Links
Landscapes
- Small-Scale Networks (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本システムは、ネットワークシステムに係り、特にシス
テム障害に到る前に障害兆候を発見する障害監視方式に
関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present system relates to a network system, and particularly to a fault monitoring method for detecting fault signs before a system fault occurs.
従来のネットワークシステム障害監視方式にはリトライ
オーバー等の障害発生時にメツセージ出力する基本的な
機能から、障害箇所を探索する機能まで種々の方式が提
案されており、−例として特公昭５９−５２５８１号に
記載のように、ネットワークを半分に分けて障害のある
側を判定しながら、更に障害のある側を半分に分ける動
作を繰り返すことにより、障害箇所を発見する方式があ
る。Various methods have been proposed for conventional network system failure monitoring methods, ranging from a basic function of outputting a message when a failure occurs such as a retry over, to a function of searching for the failure location. As described in , there is a method of dividing the network in half to determine the faulty side, and then repeating the process of further dividing the faulty side into halves to discover the fault location.
上記従来技術は、実際に通信障害が発生した後の対応方
法に主眼が置かれており、システムの信頼性を向上させ
る上での効果としては、ダウンタイムを短縮させる事が
主なものであった６本発明の目的は、通信障害に到る前
の兆候としてのリトライ動作をとらえて事前に対応でき
るようにすることにある。The above conventional technology focuses on how to respond after a communication failure actually occurs, and its main effect in improving system reliability is to shorten downtime. Another object of the present invention is to detect a retry operation as a sign before a communication failure occurs and to be able to take proactive measures.
上記目的は、ネットワークノード内でリトライ回数をカ
ウントし、交信伝文のヘッダ情報にリトライ回数を書き
込み監視制御局に自動的に収集し障害ケ所別に分類・集
計することにより、達成される。The above object is achieved by counting the number of retries within the network node, writing the number of retries into the header information of the communication message, automatically collecting the information in the monitoring and control station, and classifying and totaling the number of failures by location.
通常の交信伝文のヘッダにリトライ情報を書き込んで障
害情報を収集するので診断の為の特別な伝文は不用であ
り、通常の運用状態で常時ネットワークの障害を監視で
きる。Since fault information is collected by writing retry information in the header of normal communication messages, special messages for diagnosis are not required, and network faults can be constantly monitored under normal operating conditions.
以下、本発明の実施例を第１図、第２図、第３図により
説明する。Embodiments of the present invention will be described below with reference to FIGS. 1, 2, and 3.
第１図は、本発明を適用した１対Ｎ型のネットワークシ
ステムの構成を示したものである。FIG. 1 shows the configuration of a 1:N type network system to which the present invention is applied.
監視制御局２は、監視用ＣＲＴ３と監視結果出力用プリ
ンタ４を備え、ノードＮ１によりネットワーク１に接続
している。ネットワーク１には、ノードＮｉを介して子
局ＤＪ が複数接続し、監視制御局２と子局Ｄｊ（ｊ＝
１・・・）が１対Ｎで交信しながら業務を行っている。The monitoring control station 2 includes a monitoring CRT 3 and a monitoring result output printer 4, and is connected to the network 1 through a node N1. A plurality of slave stations DJ are connected to network 1 via nodes Ni, and supervisory control station 2 and slave station Dj (j=
1...) are conducting business while communicating on a 1-to-N basis.
第２図は、本ネットワークシステムの伝文フォーマット
を示したもので、ヘッダは、共通フォーマットとし、下
記の情報をもっている。FIG. 2 shows the message format of this network system. The header has a common format and has the following information.
Ｈｌ・・・送信元ノードＮＯ
Ｈ２・・・送信元ボートＮ０
Ｈ３・・・伝文長
Ｈ４・・・トランザクション識別コードＨ５・・・Ｄａ
Ｎｉ間リトラす回数
Ｈ６・・・Ｄ、 Ｎｉ間障害コード
Ｈ７・・・Ｎｉ−Ｎ１間リトライ回数
Ｈ８・・・Ｎｉ−Ｎ１間障害コード
Ｈ９・・・Ｎ１一監視制御局間リトライ回数ＨＩＯ・・
・Ｎ１一監視制御局間障害コードＨ１ｌ・・・予備
Ｈｌ２・・・業務データ
ここで、送信先ノードＮｏと送信送ポートＮＯは、１対
Ｎ型であるので監視制御局のアドレスに固定されている
。Hl... Source node NO H2... Source boat N0 H3... Message length H4... Transaction identification code H5... Da
Number of retries between Ni H6...D, Fault code between Ni H7... Number of retries between Ni and N1 H8... Fault code between Ni and N1 H9... Number of retries between N1 and supervisory control station HIO...
・Failure code between N1 and supervisory control station H1l...Spare H12...Business data Here, the destination node number and transmission port number are fixed to the address of the supervisory control station because they are of the 1:N type. There is.
ヘッダ部に送信先アドレスを持たせる事により、Ｎ対Ｎ
型のシステムにも適用可能である。By having the destination address in the header, N to N
It is also applicable to type systems.
第３図は、本発明の動作過程を示す。ある子局ＤＡから
監視制御局２ヘデータを送信する場合にまず子局り、か
ら子局ＤＪが接続されているノードＮｉにデータを送信
する。この時何らかの障害により、リトライが発生する
と子局ＤＪの中でリトライ回数をカウントし、正常に送
信できた場合に送信伝文のヘッダ部にあるＤａＮｉ 間
リトライ回数Ｈ５とＤｊ Ｎｉ 間障害コードをセッ
トし、ノードＮｉにデータを伝送する。FIG. 3 shows the operating process of the present invention. When transmitting data from a certain slave station DA to the supervisory control station 2, the slave station first transmits data to the node Ni to which the slave station DJ is connected. If a retry occurs due to some kind of failure at this time, the number of retries is counted in the slave station DJ, and if the transmission is successful, the DaNi retry count H5 and the Dj Ni failure code are set in the header of the transmission message. and transmits data to node Ni.
次にノードＤＪ から監視制御局Ｎ１にデータを送信し
、リトライが発生した場合は、前記と同様に、８７．Ｈ
８をセットして監視制御局Ｎ１にデータを送信する。以
下、ノードＮ１と監視制御局間でも同様の監視を行なう
ことにより、監視制御局側で受信データのヘッダ部をチ
エツクしＨ５〜ＨＩＯがＯ以外の時、そのリトライ回数
を監視場所別に累計し、過去から現在までの障害データ
を収集する。また、この収集データを累計したリトライ
回数の大きい順にソートして監視用ＣＲＴ ３またはプ
リンタ４に出力する事によって障害頻度の高い回線をク
ローズアップする事ができる。Next, data is transmitted from the node DJ to the supervisory control station N1, and if a retry occurs, 87. H
8 and transmits the data to the supervisory control station N1. Hereinafter, similar monitoring is performed between the node N1 and the supervisory control station, and the supervisory control station side checks the header part of the received data, and when H5 to HIO are other than O, the number of retries is accumulated for each monitoring location. Collect failure data from the past to the present. In addition, by sorting this collected data in descending order of the total number of retries and outputting it to the monitoring CRT 3 or printer 4, it is possible to focus on lines with a high frequency of failure.
本発明によれば、発生頻度の低い通信障害でも長期にわ
たって累積する事により発見可能でありネットワークシ
ステムのダウンに到る前に予防保全を行う事が可能であ
り、ネットワークシステムの信頼性向上に効果がある。According to the present invention, even communication failures that occur infrequently can be discovered by accumulating over a long period of time, and preventive maintenance can be performed before the network system goes down, which is effective in improving the reliability of the network system. There is.
第１図は本発明を適用したネットワークシステムの構成
図、第２図は通信伝文のヘッダ部フォーマットを示す図
、第３図は本発明の動作過程を示す図である。
１・・・ネットワーク、２・・・監視制御局、３・・・
監視用ＣＲＴ、４・・・プリンタ、Ｎ１・・・監視制御
局ノード、Ｎｉ・・・子局ノード、ＤＪ・・・子局、Ｈ
ｌ・・・送信元ノードＮｏ、Ｈ２・・・送信元ポートＮ
０１Ｈ３・・・伝文長、Ｈ４・・・トランザクション識
別コード、Ｈ５・・・ＤＪ Ｎｉ間リすライ回数、Ｈ
６・・・ＤａＮｉ間障害コード、Ｈｌ・・・Ｎｉ−Ｎ１
間リトライ回数、Ｈ８・・・Ｎｉ−Ｎ１間障害コード、
Ｈ９・・・Ｎ１一監視制御局間リトライ回数、ＨＩＯ・
・・Ｎ１一監視制御局間障害コード、Ｈｌｌ・・・予備
、Ｈｌ２・・・業務データ。
第
図
ヘッダ耶
第
図
第
図FIG. 1 is a block diagram of a network system to which the present invention is applied, FIG. 2 is a diagram showing the header format of a communication message, and FIG. 3 is a diagram showing the operation process of the present invention. 1...Network, 2...Monitoring control station, 3...
Monitoring CRT, 4...Printer, N1...Monitoring control station node, Ni...Slave station node, DJ...Slave station, H
l... Source node No. H2... Source port N
01H3...Message length, H4...Transaction identification code, H5...DJ Ni replay count, H
6...DaNi fault code, Hl...Ni-N1
Interval retry count, H8...Ni-N1 error code,
H9...N1-monitoring control station retry count, HIO/
...Fault code between N1 and supervisory control station, Hll... Reserve, Hl2... Business data. Figure Header Figure Figure
Claims (1)
ードとその下に接続する複数の子局から構成されるネッ
トワークシステムにおいて、子局から監視制御局への通
常の送信伝文のヘッダに子局→ノード、ノード→ノード
、ノード→監視制御局の各々の通信で発生したリトライ
回数、およびエラー内容を記録して、監視制御局にネッ
トワーク内の障害情報を収集し、場所別に集計した事を
特徴とするネットワークシステム障害監視方式。1. In a network system consisting of a supervisory control station that monitors and controls the network, multiple nodes, and multiple slave stations connected under it, the slave station is included in the header of a normal transmission message from the slave station to the supervisory control station. →Records the number of retries and error details that occur in communication between nodes, nodes → nodes, and nodes → supervisory control station, collects failure information in the network at the supervisory control station, and aggregates it by location. A network system failure monitoring method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63179036A JPH0230246A (en) | 1988-07-20 | 1988-07-20 | System for monitoring fault of network system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63179036A JPH0230246A (en) | 1988-07-20 | 1988-07-20 | System for monitoring fault of network system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0230246A true JPH0230246A (en) | 1990-01-31 |
Family
ID=16058997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63179036A Pending JPH0230246A (en) | 1988-07-20 | 1988-07-20 | System for monitoring fault of network system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0230246A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007293743A (en) * | 2006-04-27 | 2007-11-08 | Yokogawa Electric Corp | Multiple sort device and traffic statistics system using the same |
-
1988
- 1988-07-20 JP JP63179036A patent/JPH0230246A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007293743A (en) * | 2006-04-27 | 2007-11-08 | Yokogawa Electric Corp | Multiple sort device and traffic statistics system using the same |
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