JPH0332258A - Data communication equipment - Google Patents

Data communication equipment

Info

Publication number
JPH0332258A
JPH0332258A JP1168509A JP16850989A JPH0332258A JP H0332258 A JPH0332258 A JP H0332258A JP 1168509 A JP1168509 A JP 1168509A JP 16850989 A JP16850989 A JP 16850989A JP H0332258 A JPH0332258 A JP H0332258A
Authority
JP
Japan
Prior art keywords
frame
setting
measurement
modulo
response
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
JP1168509A
Other languages
Japanese (ja)
Inventor
Yutaka Ishii
裕 石井
Yutaka Ito
伊藤 由多加
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
NEC Engineering Ltd
Original Assignee
NEC Corp
NEC Engineering 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 Corp, NEC Engineering Ltd filed Critical NEC Corp
Priority to JP1168509A priority Critical patent/JPH0332258A/en
Publication of JPH0332258A publication Critical patent/JPH0332258A/en
Pending legal-status Critical Current

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  • Communication Control (AREA)

Abstract

PURPOSE:To set automatically frame modulo not deteriorating the operating efficiency of a memory and not deteriorating the transmission efficiency by providing a delay measuring equipment and a frame modulo setting device in the equipment and using a measuring reply device and a setting reply device of the connection destination to send and receive information via a line. CONSTITUTION:A frame module setting section 10 generates and sends a measurement command frame storing delay measurement command information and a reply section 20 receiving the frame sends a measurement reply frame storing delay measuring reply information. A frame modulo setting section 10 receiving the measurement reply frame decides a numeral of the frame modulo and sends the setting command frame storing the frame modulo setting command information. The reply section 20 receiving the setting command frame sends the setting reply frame storing the frame modulo setting reply information to the frame modulo setting section 10. Thus, the frame modulo is set automatically without deteriorating the transmission efficiency and the memory utilizing efficiency.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、データ通信装置間のリンクレベルの通信制御
をハイレベルデータリンク制御(HDLC)手順で行う
データ通信装置に関し、特に、データ通信装置間の回線
上のデータ伝送遅延に応じて、フレームモジュロを両デ
ータ通信装置内に設定するデータ通信装置に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a data communication device that performs link-level communication control between data communication devices using a high-level data link control (HDLC) procedure. The present invention relates to a data communication device that sets a frame modulo in both data communication devices according to a data transmission delay on a line between them.

〔従来の技術〕[Conventional technology]

従来、この種のデータ通信装置は保守要員が、手作業で
測定したデータ通信装置間の回線上のデータ転送遅延を
もとに、伝送効率を低下させずかつメモリーの使用効率
を低下させないフレームモジュロを計算し、フレームモ
ジュロ数値゛8′又は数値’128’に決定し、決定し
たフレームモジュロを、手作業で両データ通信装置内に
設定していた。
Conventionally, this type of data communication equipment has been developed by maintenance personnel, who has developed a frame modulo system that does not reduce transmission efficiency or memory usage efficiency, based on manually measured data transfer delays on the lines between data communication equipment. was calculated, the frame modulo value was determined to be '8' or '128', and the determined frame modulo was manually set in both data communication devices.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

上述した従来のデータ通信装置は、データ通信装置間の
回線上のデータ転送遅延の測定と、フレームモジュロの
決定・設定を手作業でやらなくてはならなかったので、
衛生中継などデータ通信装置間の回線上のデータ転送遅
延が大きい場合などで保守要員に大きな負担がかかると
いう欠点がある。
In the conventional data communication device described above, it was necessary to manually measure the data transfer delay on the line between the data communication devices and determine and set the frame modulo.
This method has the disadvantage of placing a heavy burden on maintenance personnel when there is a large data transfer delay on a line between data communication devices such as a satellite relay.

本発明の目的は上記欠点を解決したデータ通信装置を提
供することにある。
SUMMARY OF THE INVENTION An object of the present invention is to provide a data communication device that solves the above-mentioned drawbacks.

〔課題を解決するための手段〕[Means to solve the problem]

本発明によるデータ通信装置は、通信路設定制御をハイ
レベルデータリンク制御(HDLC)手順で行なうデー
タ通信装置において、通信路上のデータ伝送遅延の測定
指示を通知する遅延測定指示情報を含む測定指示フレー
ム、この測定指示フレームの受信を通知する遅延測定応
答情報を含む測定応答フレーム、フレームモジュロ計算
値を通知するフレームモジュロ設定指示情報を含む設定
指示フレーム、および少くともこの設定指示フレームの
受信を通知するフレームモジュロ設定応答情報を含む設
定応答フ、レームを予め設定し、通信路上のデータ伝送
遅延を測定するとき前記測定指示フレームを通信路上に
送信して前記測定応答フレームを受信し測定指示フレー
ムの送信時刻から測定応答フレームの受信時刻までの遅
延時間を測定して結果を出力する遅延時間測定装置と、
通信路を介して前記測定指示フレームを受信したとき直
ちに前記測定応答フレームを返信する測定応答装置と、
前記遅延時間測定装置が出力した遅延時間値を入力して
所定の(伝送効率を低下させず且つメモリの使用効率も
低下させない)フレームモジュロを計算し数値8・12
8の何れか一方に決定してこの数値を含む設定指示フレ
ームを形成ずみの通信路を介し送信したのち前記設定応
答フレームを受信したとき前記数値のフレームモジュロ
を設定するフレームモジュロ設定装置と、通信路を介し
て前記設定指示フレームを受信したとき受信した設定指
示フレームからフレームモジュロの数値を取出してフレ
ームモジュロ数を設定スると共に前記設定応答フレーム
を返信する設定応答装置とを有する。
A data communication device according to the present invention is a data communication device that performs communication path setting control using a high-level data link control (HDLC) procedure, and provides a measurement instruction frame containing delay measurement instruction information that notifies a measurement instruction of data transmission delay on a communication path. , a measurement response frame that includes delayed measurement response information that notifies the reception of this measurement instruction frame, a configuration instruction frame that includes frame modulo setting instruction information that notifies the frame modulo calculation value, and at least notifies the reception of this configuration instruction frame. A setting response frame including frame modulo setting response information is set in advance, and when measuring data transmission delay on a communication path, the measurement instruction frame is transmitted on the communication path, the measurement response frame is received, and the measurement instruction frame is transmitted. a delay time measurement device that measures the delay time from time to reception time of the measurement response frame and outputs the result;
a measurement response device that immediately returns the measurement response frame upon receiving the measurement instruction frame via a communication path;
The delay time value outputted by the delay time measurement device is input, and a predetermined frame modulo (which does not reduce transmission efficiency and memory usage efficiency) is calculated and the value is 8.12.
a frame modulo setting device that sets the frame modulo of the numerical value when the setting response frame is received after determining one of the numerical values of 8 and transmitting a setting instruction frame including the numerical value via the formed communication path; and a setting response device that extracts a frame modulo value from the received setting instruction frame, sets a frame modulo number, and sends back the setting response frame when the setting instruction frame is received via a communication channel.

〔実施例〕〔Example〕

次に本発明のデータ通信装置について図面を参照して説
明する。第1図は本発明の一実施例を示− すブロック図である。第1図において、データ通信装置
はフレームモジュロ設定部10と応答部20とを有し、
二つのデータ通信装置間でフレームモジュロ設定部10
と応答部20とはHDLC手順によるデータ回線30で
接続されている。フレームモジュロ設定部10は、遅延
時間測定装置11およびフレームモジュロ設定装置12
を具備する。応答部20は、測定応答装置21および設
定応答装置22を具備する。
Next, a data communication device according to the present invention will be explained with reference to the drawings. FIG. 1 is a block diagram showing one embodiment of the present invention. In FIG. 1, the data communication device includes a frame modulo setting section 10 and a response section 20,
Frame modulo setting unit 10 between two data communication devices
and the response unit 20 are connected by a data line 30 based on the HDLC procedure. The frame modulo setting unit 10 includes a delay time measuring device 11 and a frame modulo setting device 12.
Equipped with. The response unit 20 includes a measurement response device 21 and a setting response device 22.

第2図は、第1図における、データ通信装置間での情報
フレームの流れの一例を示すチャートである。第2図に
おいてフレームモジュロ設定部10は、遅延測定指示情
報を格納した測定指示フレームを作成して送信する。こ
の測定指示フレームを受信した応答部20は、フレーム
モジュロ設定部10に向けて、遅延測定応答情報を格納
した測定応答フレームを送信する。測定応答フレームを
受信したフレームモジュロ設定部10は、フレームモジ
ュロの数値を決定し、応答部20に向けて、フレームモ
ジュロ設定指示情報を格納した設定指示フレームを送信
する。この設定指示フレームギを受信した応答部20は
、フレームモジュロ設定部10に向けて、フレームモジ
ュロ設定応答情報を格納した設定応答フレームを送信す
る。
FIG. 2 is a chart showing an example of the flow of information frames between data communication devices in FIG. In FIG. 2, the frame modulo setting unit 10 creates and transmits a measurement instruction frame storing delay measurement instruction information. The response unit 20, which has received this measurement instruction frame, transmits a measurement response frame containing delay measurement response information to the frame modulo setting unit 10. The frame modulo setting unit 10 that has received the measurement response frame determines the numerical value of the frame modulo, and transmits a setting instruction frame containing frame modulo setting instruction information to the response unit 20. The response unit 20, which has received this setting instruction frame, transmits a setting response frame containing frame modulo setting response information to the frame modulo setting unit 10.

各フレームはアドレス部および制御部に加え、それぞれ
遅延測定指示情報、遅延測定応答情報、フレームモジュ
ロ設定指示情報、およびフレームモジュロ設定応答情報
を格納する。
In addition to the address section and the control section, each frame stores delay measurement instruction information, delay measurement response information, frame modulo setting instruction information, and frame modulo setting response information, respectively.

次に、第1図および第2図を参照し、各装置の機能およ
び手順について説明する。
Next, the functions and procedures of each device will be explained with reference to FIGS. 1 and 2.

フレームモジュロ設定部10および応答部20の間の回
線30上のデータ伝送遅延を測定するため、遅延時間測
定装置11は、回線30上へ測定線30上へ測定応答フ
レームを送出する。回線30上から測定応答フレームを
受信した遅延時間測定装置11は、測定指示フレームを
送出した時刻と測定応答フレームを受信した時刻との差
を計算し、回線30上のデータ伝送遅延時間を算出する
In order to measure the data transmission delay on the line 30 between the frame modulo setting section 10 and the response section 20, the delay time measuring device 11 sends a measurement response frame onto the measurement line 30 onto the line 30. The delay time measurement device 11 that has received the measurement response frame from the line 30 calculates the difference between the time when the measurement instruction frame was sent and the time when the measurement response frame was received, and calculates the data transmission delay time on the line 30. .

遅延時間測定装置11で測定された遅延時間は、フレー
ムモジュロ設定装置12へ伝えられる。フレームモジュ
ロ設定装置12は、受信した遅延時間をもとに、伝送効
率を低下させず且つメモリーの使用効率を低下させない
フレームモジュロの数値を計算し、フレームモジュロを
数値8′マたは数値“128″に決定し、回線30上に
、前記の決定されたフレームモジュロの数値を含むフレ
ームモジュロ設定指示情報を格納した設定指示フレーム
を送信する。回線30上から設定指示フレームを受信し
た。設定応答装置22は、設定指示フレームに含まれる
フレームモジュロ数値を取り出し、自動的にデータ通信
装置内に前記フレームモジュロを数値設定すると共に回
線30上へフレームモジュロ設定応答情報を格納した設
定応答フレームを送出する。回線30上から設定応答フ
レームを受信したフレ−ムモジユロ設定装置12は、先
に決定したフレームモジュロ数値を自動的にデータ通信
装置内に設定する。
The delay time measured by the delay time measuring device 11 is transmitted to the frame modulo setting device 12. The frame modulo setting device 12 calculates a frame modulo value that does not reduce transmission efficiency and memory usage efficiency based on the received delay time, and sets the frame modulo to a value of 8' or 128. '', and transmits a setting instruction frame containing frame modulo setting instruction information including the determined frame modulo value onto the line 30. A setting instruction frame was received from line 30. The configuration response device 22 extracts the frame modulo value included in the configuration instruction frame, automatically sets the frame modulo value in the data communication device, and transmits the configuration response frame containing the frame modulo configuration response information onto the line 30. Send. The frame modulo setting device 12, which receives the setting response frame from the line 30, automatically sets the previously determined frame modulo value in the data communication device.

〔発明の効果〕〔Effect of the invention〕

以上説明したように本発明は、データ通信装置内に遅延
測定装置とフレームモジュロ設定装置とを具備し、回線
を介して接続先の測定応答装置および設定応答装置と情
報授受することにより衛星中継などデータ通信装置間の
回線上のデータ伝送遅延が大きくフレームモジュロの設
定が必要な場合、保守要員の手作業をせず、伝送効率を
低下させずかつメモリの使用効率を低下させないフレー
ムモジュロを自動的に設定することができる効果がある
As explained above, the present invention includes a delay measuring device and a frame modulo setting device in a data communication device, and transmits and receives information to and from a connected measurement response device and a setting response device via a line, thereby enabling satellite relay etc. When there is a large data transmission delay on the line between data communication devices and it is necessary to set the frame modulo, the frame modulo is automatically set without manual work by maintenance personnel, without reducing transmission efficiency, and without reducing memory usage efficiency. There is an effect that can be set to .

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

第1図は、本発明のデータ通信装置の一実施例を示すブ
ロック図、第2図は第1図におけるデータ通信装置間で
のフレームの流れの一例を示すタイムチャートである。 10・・・・・・フレームモジュロ設定部、工1・・・
・・・遅延時間測定装置、12・・・・・・フレームモ
ジュロ設定− 装置、20・・・・・・応答部、21・・・・・・測定
応答装置、22・・・・・・設定応答装置、30・・・
・・・回線。
FIG. 1 is a block diagram showing an embodiment of a data communication device of the present invention, and FIG. 2 is a time chart showing an example of the flow of frames between the data communication devices in FIG. 10... Frame modulo setting section, work 1...
... Delay time measurement device, 12 ... Frame modulo setting device, 20 ... Response section, 21 ... Measurement response device, 22 ... Setting Response device, 30...
...line.

Claims (1)

【特許請求の範囲】[Claims] 通信路設定制御をハイレベルデータリンク制御(HDL
C)手順で行なうデータ通信装置において、通信路上の
データ伝送遅延の測定指示を通知する遅延測定指示情報
を含む測定指示フレーム、この測定指示フレームの受信
を通知する遅延測定応答情報を含む測定応答フレーム、
フレームモジュロ計算値を通知するフレームモジュロ設
定指示情報を含む設定指示フレーム、および少くともこ
の設定指示フレームの受信を通知するフレームモジュロ
設定応答情報を含む設定応答フレームを予め設定し、通
信路上のデータ伝送遅延を測定するとき前記測定指示フ
レームを通信路上を送信して前記測定応答フレームを受
信し測定指示フレームの送信時刻から測定応答フレーム
の受信時刻までの遅延時間を測定して結果を出力する遅
延時間測定装置と、通信路を介して前記測定指示フレー
ムを受信したとき直ちに前記測定応答フレームを返信す
る測定応答装置と、前記遅延時間測定装置が出力した遅
延時間値を入力して所定の(伝送効率を低下させず且つ
メモリの使用効率も低下させない)フレームモジュロを
計算し数値8・128の何れか一方に決定してこの数値
を含む設定指示フレームを形成ずみの通信路を介し送信
したのち前記設定応答フレームを受信したとき前記数値
のフレームモジュロを設定するフレームモジュロ設定装
置と、通信路を介して前記設定指示フレームを受信した
とき受信した設定指示フレームからフレームモジュロの
数値を取出してフレームモジュロを設定すると共に前記
設定応答フレームを返信する設定応答装置とを有するこ
とを特徴とするデータ通信装置。
High-level data link control (HDL)
C) In a data communication device that performs the procedure, a measurement instruction frame containing delay measurement instruction information that notifies an instruction to measure data transmission delay on a communication path, and a measurement response frame that includes delay measurement response information that notifies reception of this measurement instruction frame. ,
A setting instruction frame including frame modulo setting instruction information that notifies the calculated frame modulo value, and a setting response frame including at least frame modulo setting response information that notifies the reception of this setting instruction frame are set in advance, and data is transmitted over the communication path. When measuring delay, the measurement instruction frame is transmitted on a communication path, the measurement response frame is received, the delay time is measured from the transmission time of the measurement instruction frame to the reception time of the measurement response frame, and the result is output. a measurement device, a measurement response device that returns the measurement response frame immediately upon receiving the measurement instruction frame via a communication path, and a measurement response device that inputs the delay time value outputted by the delay time measurement device and calculates a predetermined (transmission efficiency) value. After calculating the frame modulo (without degrading the memory usage efficiency or reducing the memory usage efficiency), determining the value as either 8 or 128, and transmitting the setting instruction frame containing this value via the already formed communication channel, the above setting is performed. a frame modulo setting device that sets the frame modulo of the numerical value when a response frame is received; and a frame modulo setting device that sets the frame modulo by extracting the numerical value of the frame modulo from the received setting instruction frame when the setting instruction frame is received via a communication path. and a settings response device that returns the settings response frame.
JP1168509A 1989-06-29 1989-06-29 Data communication equipment Pending JPH0332258A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1168509A JPH0332258A (en) 1989-06-29 1989-06-29 Data communication equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1168509A JPH0332258A (en) 1989-06-29 1989-06-29 Data communication equipment

Publications (1)

Publication Number Publication Date
JPH0332258A true JPH0332258A (en) 1991-02-12

Family

ID=15869369

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1168509A Pending JPH0332258A (en) 1989-06-29 1989-06-29 Data communication equipment

Country Status (1)

Country Link
JP (1) JPH0332258A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7862002B2 (en) 2006-11-15 2011-01-04 Ckd Corporation Vacuum valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7862002B2 (en) 2006-11-15 2011-01-04 Ckd Corporation Vacuum valve

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