JPH02113741A - Communication processing system - Google Patents
Communication processing systemInfo
- Publication number
- JPH02113741A JPH02113741A JP26861388A JP26861388A JPH02113741A JP H02113741 A JPH02113741 A JP H02113741A JP 26861388 A JP26861388 A JP 26861388A JP 26861388 A JP26861388 A JP 26861388A JP H02113741 A JPH02113741 A JP H02113741A
- Authority
- JP
- Japan
- Prior art keywords
- network management
- message
- response
- communication device
- rank
- 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
- 238000004891 communication Methods 0.000 title claims abstract description 131
- 238000003672 processing method Methods 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 11
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
Landscapes
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は通信処理方式に関し、特に複数台の通信装置と
それら間を結きする複数のデータ通信回線とを有するシ
ステムの通信処理方式に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a communication processing method, and particularly to a communication processing method for a system having a plurality of communication devices and a plurality of data communication lines connecting them.
〔従来の技術〕
複数台の通信装置とそれら間を結合する複数のデータ通
信回線とを有するシステムにおける従来の通信処理方式
は、それらの複数台の通信装置の中で網状態の管理を行
う通信装置を、原則として固定的に定めて動作させてい
る。[Prior Art] A conventional communication processing method for a system having a plurality of communication devices and a plurality of data communication lines connecting them is a communication processing method that manages the network status among the plurality of communication devices. As a general rule, equipment is operated in a fixed manner.
このため、固定的に定めた網状態の管理を行う通信装置
に障害が発生した場合には、人手で、稼動可能な他の通
信装置に、あらかじめ準備しておいたプログラムやデー
タを読込ませて、読込ませた通信装置で網状態の管理を
起動させている。Therefore, if a failure occurs in a communication device that manages fixedly determined network conditions, programs and data prepared in advance can be manually loaded into other operable communication devices. , the network status management is started on the loaded communication device.
上述した従来の通信処理方式は、固定的に定めた網状態
の管理を行う通信装置に障害が発生した場合に、人手で
、稼働可能な他の通信装置に、あらかじめ準備しておい
たプログラムやデータを読込Ｊせて、読込ませた通信装
置で網状態の管理を起動させる必要があるので、手間が
かかるとともに、障害発生時に長時間の停止が発生ずる
という欠点がある。In the conventional communication processing method described above, when a failure occurs in a communication device that manages a fixed network status, a pre-prepared program or Since it is necessary to read the data and start managing the network status in the communication device that read the data, it is time-consuming and has the disadvantage that a long outage occurs when a failure occurs.
本発明の目的は、網状態の管理を行っている通信装置に
障害が発生しても、網状態の管理を自動的に他の稼働中
の通信装置に移行して行うことができる通信処理方式を
提供することにある。An object of the present invention is to provide a communication processing method that can automatically transfer network state management to another operating communication device even if a failure occurs in a communication device that is managing the network state. Our goal is to provide the following.
本発明の通信処理方式は、複数台の通信装置と、それら
の間を様々に結合する複数のデータ通信回線とを有する
システムの通信処理方式において、
＜Ａ、）前記データ通信回線で直結して隣接する何れか
の前記通信装置から、を秒以内ごとに受けていた網管理
メツセージが途絶えたとき、Ｔ（Ｔ＞ｔ、）秒後に起動
することにより、網管理機能を初期状態にしてから、隣
接するすべての前記通信装置にを秒以内ごとに自己の網
管理順位を含む網管理メツセージを発信する網管理メツ
セージ発信手段、
（Ｂ）隣接する何れかの前記通信装置から、発信した前
記通信装置の網管理順位を含む網管理メツセージを受け
たとき、受けた網管理メツセージが自己の網管理順位よ
り高い網管理順位を含むかどうかを判定し、自己の網管
理順位より高い網管理順位を含む場合に、前記網管理メ
ツセージ発信手段の動作を停止させる網管理メツセージ
発信停止手段、
（Ｃ）隣接する何れかの前記通信装置から、自己の網管
理順位より高い網管理順位を含む網管理メツセージを受
けたとき、その網管理メツセージに含む網管理順位およ
びその網管理メツセージを送出した隣接する前記通信装
置を以後の受信および応答を行う受信応答ルートとして
記憶し、その受信応答ルートに自己の応答メツセージを
返信する応答メツセージ返信手段、
（Ｄ）隣接する何れかの前記通信装置から、自己の網管
理順位より高い網管理順位を含む網管理メツセージを受
けたとき、受けた網管理メツセージを中継して他のすべ
ての隣接する前記通信装置に送信する網管理メツセージ
送＝６ ＝
信中継手段、
（Ｆ、）隣接する何れかの前記通信装置からの応答メツ
セージを受けたとき、受けた応答メツセージを中継して
、網管理メツセージを受けて前記応答メツセージ返信手
段で記憶した受信応答ルートに返信する応答メツセージ
返信中継手段、
（ｒ：）稼働中の前記通信装置の中で自己の網管理順位
か最も高くなることにより、前記網管理メツセージ発信
手段の発信か継続している場合にだけ、隣接するすへて
の前記通信装置から次々に応答メツセージを受けて、そ
れらの応答メツセージの内容で網状態の管理を行う応答
メツセージ受信管理手段、
を複数台の前記通信装置のそれぞれに備えて構成されて
いる。The communication processing method of the present invention is a communication processing method for a system having a plurality of communication devices and a plurality of data communication lines connecting them in various ways, wherein: When the network management messages received every second or less from any of the adjacent communication devices are interrupted, the network management function is activated after T (T>t,) seconds to bring the network management function to the initial state, and then network management message transmitting means for transmitting a network management message including its own network management rank to all of the adjacent communication devices within seconds; (B) the communication device transmitting from any of the adjacent communication devices; When receiving a network management message that includes a network management rank, determine whether the received network management message includes a network management rank higher than its own network management rank, and determine whether the received network management message includes a network management rank higher than its own network management rank. (C) network management message transmission stopping means for stopping the operation of said network management message transmission means; When received, the network management order included in the network management message and the adjacent communication device that sent the network management message are stored as a reception response route for subsequent reception and response, and the own response message is sent to the reception response route. (D) When receiving a network management message containing a network management rank higher than its own network management rank from any of the adjacent communication devices, relaying the received network management message; Network management message transmission to all other adjacent communication devices = 6 = communication relay means, (F,) When receiving a response message from any of the adjacent communication devices, relays the received response message. response message reply relay means for receiving the network management message and replying to the reception response route stored by the response message reply means; As a result, only when the network management message transmitting means continues to transmit, response messages are received one after another from all the adjacent communication devices, and the network status is managed based on the contents of these response messages. Each of the plurality of communication devices is provided with a response message reception management means for performing the following.
〔実施例］ 次に本発明の実施例について図面を参照して説明する。〔Example] Next, embodiments of the present invention will be described with reference to the drawings.
第１図は本発明の通信処理方式の一実施例を示ず機能ブ
ロック図である。FIG. 1 is a functional block diagram showing an embodiment of the communication processing method of the present invention.
また、第２図は本実施例の通信処理方式を適用した分散
処理システムの一例を示すフロック図である。Further, FIG. 2 is a block diagram showing an example of a distributed processing system to which the communication processing method of this embodiment is applied.
第２図の分散処理システムは、５台の通信装置］、、２
，３．４．５と、それらを様々に結合する６本のデータ
通信回線り、４．ｌ−７１５，１，２３，Ｌ２５Ｌ３４
． Ｌ４５とを有している。The distributed processing system in Figure 2 consists of five communication devices], 2
, 3.4.5 and six data communication lines variously coupling them; 4. l-715, 1, 23, L25L34
．． It has L45.
また、５台の通信装置１．２．３，４．５は、あらかじ
め、それらの装置番号による網管理順位１．２，３．４
．５を、それぞれ与えられて記憶している。In addition, the five communication devices 1.2.3, 4.5 are assigned network management ranks 1.2, 3.4 according to their device numbers in advance.
．． 5, are each given and memorized.
このため、５台の通信装置１，２．３．４．．５のずべ
てが、稼働可能な平常状態では、通信装置］が網状態の
管理を行っている。For this reason, five communication devices 1, 2.3.4. ．． In a normal state where all 5 are operational, the communication device] manages the network status.
第３図は各通信装置間で網状態の管理を行うメツセージ
を交換する関係を示すメツセージ交換関係説明図である
。FIG. 3 is an explanatory diagram of a message exchange relationship showing a relationship in which messages for managing network status are exchanged between communication devices.
第３図（ａ）に示すように、５台の通信装置１．２．３
．４．．５のすべてが稼働可能な平常一
状態では、・１本のデータ通信回線Ｌ１４．Ｌ１５Ｌ２
５．Ｌｉ２を通じて、メツセージが交換されている。As shown in Figure 3(a), five communication devices 1.2.3
．． 4. ．． In a normal state in which all of L14.5 are operational, one data communication line L14. L15L2
5. Messages are exchanged through Li2.
そこで、通信装置１に障害か発生して、通信装置］か停
止したとき、通信装置４．５は通信装置１からｔ秒以内
ごとに受けていた網管理メツセージが途絶え、通信装置
２．３はそれぞれ通信装置５．４を中継してｔ秒以内ご
とに受けていた通信装置１からの網管理メツセージが途
絶えるので、通信装置２．３．４．５のそれぞれで動作
するソフＩ・ウェアである網管理メツセージ発信手段Ａ
は、それぞれＴ（Ｔ＞ｔ）秒後に起動することにより、
網管理機能を初期状態にしてから、隣接するすべての通
信装置にを秒以内ごとにそれぞれ自己の網管理順位２．
３，４．５を含む網管理メツセージを発信することとな
る。Therefore, when a failure occurs in the communication device 1 and the communication device stops, the communication device 4.5 stops receiving network management messages from the communication device 1 every t seconds, and the communication device 2.3 stops receiving network management messages from the communication device 1 every t seconds. Since network management messages from communication device 1, which were relayed by communication device 5.4 and received every t seconds, are discontinued, the software I/ware that operates on each communication device 2.3.4.5 is interrupted. Network management message sending means A
are activated after T (T>t) seconds, respectively.
After setting the network management function to its initial state, all adjacent communication devices are assigned their own network management rankings within seconds.
3, 4.5 will be sent.
このため、第３図（ｂ）に示すように、通信装置２．３
．４．５は、通信装置１に障害が発生して、Ｔ Ｗ 後
の状態では、４本のデータ通信回線Ｌ２３． Ｌ２６．
１．−３４． Ｌ４５を通じて、メツセージが交換され
ることになる。Therefore, as shown in FIG. 3(b), the communication device 2.3
．． 4.5 indicates that a failure has occurred in the communication device 1, and in the state after T W , the four data communication lines L23. L26.
1. -34. Messages will be exchanged through L45.
ところが、通信装置３，５が、それぞれ隣接する通信装
置２から発信した網管理順位２を含む網管理メツセージ
を受け、自己の網管理順位３．５より高い網管理順位２
を含むので、通信装置３゜５のそれぞれで動作するソフ
トウェアである網管理メツセージ発信停止手段Ｂは、通
信装置３．５の網管理メツセージ発信手段Ａの動作を停
止させることとなる。However, each of the communication devices 3 and 5 receives a network management message containing a network management rank of 2 sent from an adjacent communication device 2, and receives a network management rank of 2 higher than its own network management rank of 3.5.
Therefore, the network management message transmission stop means B, which is software running on each of the communication devices 3.5, stops the operation of the network management message transmission means A of the communication devices 3.5.
また、通信装置３，５が、それぞれ隣接する通信装置２
から、自己の網管理順位３，５より高い網管理順位２を
含む網管理メツセージを受けたので、通信装置３，５の
それぞれで動作するソフトウェアである応答メツセージ
返信手段Ｃは、その網管理メツセージに含む網管理順位
２およびその網管理メツセージを送出した隣接する通信
装置２を以後の受信および応答を行う受信応答ルー１〜
として記憶し、その受信応答ルートに自己の応答メツセ
ージを返信している。In addition, the communication devices 3 and 5 are connected to the adjacent communication device 2, respectively.
Since a network management message containing network management rank 2, which is higher than its own network management rank 3 and 5, is received from the communication device 3 and 5, response message replying means C, which is software operating on each of the communication devices 3 and 5, responds to the network management message. network management order 2 included in the network management message, and reception response routes 1 to 1 for subsequent reception and response of the adjacent communication device 2 that sent the network management message.
, and replies its own response message to the reception response route.
さらに、通信製Ｒ３，５が、それぞれ隣接する通信装置
２から、自己の網管理順位３，５より高い網管理順位を
含む網管理メツセージを受けたので、通信装置３．５の
そｈぞれで動作するソフトウェアである網管理メツセー
ジ送信中継手段りは、それぞれ受けた網管理メツセージ
を中継して、それぞれ他の隣接する通信装置・４に送信
している。Furthermore, since communication devices R3 and R5 received a network management message containing a network management rank higher than their own network management ranks 3 and 5 from the adjacent communication devices 2, respectively, communication devices 3 and 5 received The network management message transmitting and relaying means, which is software operating on the network management message transmitting and relaying means, relays the received network management message and transmits it to each other adjacent communication device 4.
そこで、通信装置４が、先に隣接する通信装置３から、
自己の網管理順位・１より高い網管理順位２を含む網管
理メツセージを受けたとすれば、通信装置４て動作する
ソフトウェアである網管理メツセージ発信停止手段１３
は、通信装置４の網管理メツセージ発信手段Ａの動作を
停止させるとともに、通信装置４で動作するラフ１〜ウ
エアである応答メツセージ返信手段Ｃは、その網管理メ
ツセージに含む網管理順位２およびその網管理メツセー
ジを送出した隣接する通信装置３を以後の受信および応
答を行う受信応答ルートとして記憶し、その受信応答ル
ー１〜に自己の応答メツセージを返信している。Therefore, the communication device 4 first receives the communication device 3 from the adjacent communication device 3.
If a network management message containing a network management rank 2 higher than its own network management rank 1 is received, the network management message transmission stop means 13, which is software operated by the communication device 4,
, the operation of the network management message sending means A of the communication device 4 is stopped, and the response message replying means C, which is rough 1 to ware operating in the communication device 4, sends the network management order 2 included in the network management message and its The adjacent communication device 3 that sent the network management message is stored as a reception response route for subsequent reception and response, and its own response message is returned to the reception response route 1 to 1.
なお、通信装置４か、後にもう一つの隣接する通信装置
５から、自己の網管理順位４より高い網管理順位２を含
む網管理メツセージを受けても、通信装置４は、既に網
管理順位２および隣接する通信装置３を以後の受信およ
び応答を行う受信応答ルーＩ・とじて記憶しているので
記憶されない。Note that even if the communication device 4 receives a network management message containing a network management rank 2 which is higher than its own network management rank 4 from the communication device 4 or later from another adjacent communication device 5, the communication device 4 is already assigned a network management rank 2 which is higher than its own network management rank 4. and the adjacent communication device 3 are stored as a reception response route I for subsequent reception and response, so they are not stored.
このため、通信装置３か、隣接する通信装置１１からの
応答メツセージを受けることにより、通信装置３で動作
するソフＩ・ウェアである応答メツセージ返信中継手段
Ｅは、受けた応答メツセージを中継して、網管理メツセ
ージを受けて応答メツセージ返信手段Ｃで記憶した受信
応答ルートである通信装置２に返信している。Therefore, upon receiving a response message from the communication device 3 or the adjacent communication device 11, the response message reply relay means E, which is software I/ware operating on the communication device 3, relays the received response message. , the network management message is received and the response message reply means C sends a reply to the communication device 2 which is the stored reception response route.
このようにして、稼働中の通信装置２，３゜４．５の中
で、通信装置２の網管理順位２が最も高いので、通信製
Ｗ２の網管理メツセージ発信手段Ａの発信だ（・うか継
続することとなり、通信装置２で動作するソフトウェア
である応答メツセージ受信管理手段Ｆは、隣接する通信
装置３，５から次々に応答メツセージを受けて、それら
の応答、メツセージの内容でＩ！４状態の管理を行うこ
ととなる。In this way, among the communication devices 2 and 3°4.5 in operation, the network management rank 2 of the communication device 2 is the highest, so the transmission is from the network management message sending means A of Tsushin W2. The response message reception management means F, which is software running on the communication device 2, receives response messages one after another from the adjacent communication devices 3 and 5, and changes to the I!4 state based on the responses and message contents. will be managed.
この結果、第３図（ｃ）に示すように、通信装置２．３
，４．５は、通信装置１に障害が発生した後の安定した
状態では、３本のデータ通信回線Ｌ２□３．１．−２！
ｉ、 Ｌ３４を通して、メツセージが交換されることに
なる。As a result, as shown in FIG. 3(c), the communication device 2.3
, 4.5, in a stable state after a failure occurs in the communication device 1, three data communication lines L2□3.1. -2!
i, messages will be exchanged through L34.
以上述べたように、本実施例の通信処理方式は、網状態
の管理を行っている通信装置に障害が発生しても、特別
な制御回線を設けることなく、網状態の管理を自動的に
他の稼働中の通信装置に移行して行うことができる。As described above, the communication processing method of this embodiment automatically manages the network status without providing a special control line even if a failure occurs in the communication device managing the network status. This can be done by moving to another operating communication device.
以−Ｅ説明したように、本発明の通信処理方式は、網状
態の管理を行っている通信装置に障害が発生しても、特
別な制御回線を設けることなく、網状態の管理を自動的
に他の稼働中の通信装置に移行し、て行うことができる
という効果を有している。As explained above, the communication processing method of the present invention allows network state management to be automatically performed without the need for a special control line even if a failure occurs in the communication device managing the network state. This has the advantage that the communication can be transferred to another operating communication device at any time.
第１図は本発明の通信処理方式の一実施例を示す機能ブ
ロック図、第２図は本実施例の通信処理方式を適用した
分散処理システムの一例を示すブロック図、第３図は各
通信装置間で網状態の管理を行うメツセージを交換する
関係を示すメツセージ交換関係説明図である。
１、．２，３．４．５・・・・・・通信装置、Ａ・旧・
・網管理メツセージ発信手段、Ｂ・・・・・網管理メツ
セージ発信停止手段、Ｃ・・・応答メツセージ返信手段
、Ｄ・・・・・・網管理メツセージ送信中継手段、Ｅ・
・・応答メツセージ返信中継手段、Ｆ・・・・・応答メ
ツセージ受信管理手段、Ｌ １４＋ Ｉ−１５＋ Ｉ−
２３，Ｌ ２５Ｌ３４．Ｌ４５・・・・・・データ通信
回線。Fig. 1 is a functional block diagram showing an embodiment of the communication processing method of the present invention, Fig. 2 is a block diagram showing an example of a distributed processing system to which the communication processing method of this embodiment is applied, and Fig. 3 shows each communication FIG. 2 is an explanatory diagram of a message exchange relationship showing a relationship in which messages are exchanged for managing network status between devices. 1. 2, 3. 4. 5...Communication equipment, A/Old/
・Network management message sending means, B...Network management message sending stopping means, C...Response message replying means, D...Network management message sending relay means, E.
...Response message reply relay means, F...Response message reception management means, L14+I-15+I-
23,L 25L34. L45... Data communication line.
Claims (1)
のデータ通信回線とを有するシステムの通信処理方式に
おいて、 （Ａ）前記データ通信回線で直結して隣接する何れかの
前記通信装置から、を秒以内ごとに受けていた網管理メ
ッセージが途絶えたとき、Ｔ（Ｔ＞ｔ）秒後に起動する
ことにより、網管理機能を初期状態にしてから、隣接す
るすべての前記通信装置にを秒以内ごとに自己の網管理
順位を含む網管理メッセージを発信する網管理メッセー
ジ発信手段、 （Ｂ）隣接する何れかの前記通信装置から、発信した前
記通信装置の網管理順位を含む網管理メッセージを受け
たとき、受けた網管理メッセージが自己の網管理順位よ
り高い網管理順位を含むかどうかを判定し、自己の網管
理順位より高い網管理順位を含む場合に、前記網管理メ
ッセージ発信手段の動作を停止させる網管理メッセージ
発信停止手段、 （Ｃ）隣接する何れかの前記通信装置から、自己の網管
理順位より高い網管理順位を含む網管理メッセージを受
けたとき、その網管理メッセージに含む網管理順位およ
びその網管理 メッセージを送出した隣接する前記通信装置を以後の受
信および応答を行う受信応答ルートとして記憶し、その
受信応答ルートに自己の応答メッセージを返信する応答
メッセージ返信手段、 （Ｄ）隣接する何れかの前記通信装置から、自己の網管
理順位より高い網管理順位を含む網管理メッセージを受
けたとき、受けた網管理 メッセージを中継して他のすべての隣接する前記通信装
置に送信する網管理メッセージ送信中継手段、 （Ｅ）隣接する何れかの前記通信装置からの応答メッセ
ージを受けたとき、受けた応答メッ セージを中継して、網管理メッセージを受けて前記応答
メッセージ返信手段で記憶した受信応答ルートに返信す
る応答メッセージ返信中継手段、 （Ｆ）稼働中の前記通信装置の中で自己の網管理順位が
最も高くなることにより、前記網管理メッセージ発信手
段の発信が継続している場合にだけ、隣接するすべての
前記通信装置から次々に応答メッセージを受けて、それ
らの応答メッセージの内容で網状態の管理を行う応答メ
ッセージ受信管理手段、 を複数台の前記通信装置のそれぞれに備えることを特徴
とする通信処理方式。[Claims] In a communication processing method for a system having a plurality of communication devices and a plurality of data communication lines connecting them in various ways, (A) any adjacent device directly connected by the data communication line; When the network management message that was being received every second from the communication device is interrupted, the network management function is activated after T (T>t) seconds, and then all adjacent network management message transmitting means for transmitting a network management message including its own network management rank to the communication device every second; (B) a network management rank of the communication device transmitted from any of the adjacent communication devices; When receiving a network management message containing a network management rank, it is determined whether the received network management message includes a network management rank higher than its own network management rank, and if the received network management message includes a network management rank higher than its own network management rank, the above-mentioned network management message transmission stop means for stopping the operation of the network management message transmission means; (C) when receiving a network management message containing a network management rank higher than its own network management rank from any of the adjacent communication devices; A response in which the network management order included in the network management message and the adjacent communication device that sent the network management message are stored as a reception response route for subsequent reception and response, and the own response message is returned to the reception response route. (D) When receiving a network management message containing a network management rank higher than its own network management rank from any of the adjacent communication devices, it relays the received network management message to all other communication devices. network management message transmission relay means for transmitting to said adjacent communication device; (E) upon receiving a response message from any of said adjacent communication device, relaying the received response message and receiving the network management message; (F) a response message reply relay means for replying to the reception response route stored by the response message reply means; response message reception management means that receives response messages one after another from all of the adjacent communication devices and manages the network status based on the contents of these response messages only when the transmission continues. A communication processing method, characterized in that it is provided in each of the communication devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26861388A JPH02113741A (en) | 1988-10-24 | 1988-10-24 | Communication processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26861388A JPH02113741A (en) | 1988-10-24 | 1988-10-24 | Communication processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02113741A true JPH02113741A (en) | 1990-04-25 |
Family
ID=17460975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26861388A Pending JPH02113741A (en) | 1988-10-24 | 1988-10-24 | Communication processing system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02113741A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0616479A1 (en) * | 1993-03-19 | 1994-09-21 | Thomson-Csf | Reconfiguration method of a mesh network |
| US5448724A (en) * | 1993-07-02 | 1995-09-05 | Fujitsu Limited | Data processing system having double supervising functions |
-
1988
- 1988-10-24 JP JP26861388A patent/JPH02113741A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0616479A1 (en) * | 1993-03-19 | 1994-09-21 | Thomson-Csf | Reconfiguration method of a mesh network |
| FR2702909A1 (en) * | 1993-03-19 | 1994-09-23 | Thomson Csf | Method for reconfiguring a mesh network |
| US5444694A (en) * | 1993-03-19 | 1995-08-22 | Thomson-Csf | Method for the reconfiguration of a meshed network |
| US5448724A (en) * | 1993-07-02 | 1995-09-05 | Fujitsu Limited | Data processing system having double supervising functions |
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