JPH0344236A - Lan terminal equipment - Google Patents
Lan terminal equipmentInfo
- Publication number
- JPH0344236A JPH0344236A JP18112189A JP18112189A JPH0344236A JP H0344236 A JPH0344236 A JP H0344236A JP 18112189 A JP18112189 A JP 18112189A JP 18112189 A JP18112189 A JP 18112189A JP H0344236 A JPH0344236 A JP H0344236A
- Authority
- JP
- Japan
- Prior art keywords
- lan
- token
- lan terminal
- data
- terminal
- 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
- 238000000034 method Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract 1
- 241000272168 Laridae Species 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
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- Small-Scale Networks (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明はＩＳＤＮを用いたＬＡＮ端末に関するものであ
も
従来の技術
構内における端末装置間データ転送のためのＬＡＮを構
築する場合、ＬＡＮ端末間のケーブル付設コストが大き
く問題となも それに対して、ケーブル付設コストが小
さいＩＳＤＮを用いて構内交換機の内線側においてデー
タ転送を行な（＼ ＬＡＮと同等の機能を実現する試み
があも発明が解決しようとする課題
前述のＩＳＤＮを用いる場合、スター型のＬＡＮと同等
となり、ＬＡＮ稼働時に端末間の呼設定がデータ転送毎
時に発生し スター型の中心となる構内交換機の負荷が
大きくなも また ブロードキャスト送信を行なう場合
、一対多の呼接続を構内交換機がサポートしなければな
ら哄 構内交換機自体も特殊なものとなり付設コス・ト
が増大する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to LAN terminals using ISDN.When constructing a LAN for data transfer between terminal devices in a conventional technology premises, cables between LAN terminals are used. The problem is that the installation cost is high, but the problem is solved by using ISDN, which has a low cable installation cost, to transfer data on the extension side of the private branch exchange (＼ An attempt to realize the same function as a LAN will solve the problem) When using the ISDN described above, it is equivalent to a star-type LAN, and when the LAN is in operation, call setup between terminals occurs every time data is transferred, and the load on the private branch exchange that is the center of the star type is large. In this case, if the private branch exchange must support one-to-many call connections, the private branch exchange itself would have to be special, increasing installation costs.
そこ玄 本発明ζ上 端末側装置のみの機能によりＬＡ
Ｎの構築を行な八 構内交換機に対してＬＡＮ付設コス
トの増大をなくし 各ＬＡＮ端末間をＩＳＤＮ基本イン
タフェースのＢチャネル２回線により接続するトークン
リング型のＬＡＮを構築すること玄 ＬＡＮ起動時にす
べての呼設定を完了させ、ＬＡＮ稼働時の構内交換機の
負荷を減少させることを目的としていも
課題を解決するための手段
上述の目的を遠戚するた吹 本発明のＬＡＮ端末ζ；Ｌ
ＩＳＤＮ基本インタフェースのＢチャネル２回線に
より他の２台のＬＡＮ端末とそれぞれデータチャネルの
接続を行なう回線処理部と、ＬＡＮ起動時のフリート−
クンの生成送信およびＬＡＮ稼働時のトークン巡回方式
の制御を行なうトークン制御部と、送受信されるデータ
パケットの処理を行なうデータ処理部とからなん
作用
上述のように構成されたＬＡＮ端末の作用を以下に説明
すも
ＬＡＮ起動時において；友 ま哄 ユーザが構築するＬ
ＡＮにおいて使用するすべてのＬＡＮ端末に順番を指定
すも そして、前記順番において先頭となるＬＡＮ端末
の回線処理部へ 次の順番のＬＡＮ端末に対して発呼を
行な八 着呼を受けたＬＡＮ端末との間にＩＳＤＮ基本
インタフェース２Ｂ＋ＤのＢチャネル１回線分の呼設定
を行な（＼データチャネルを接続すも 発呼を受けたＬ
ＡＮ端末の回線処理部（上 空いているもうニガのＢチ
ャネル１回線を用いて、同様に 次の順番のＬＡＮ端末
に対して発呼を行な（＼ データチャネルを接続し こ
の手順を、前記順番の末尾のＬＡＮ端末に対して発呼が
行われ データチャネルが接続されるまで繰り返す。そ
して、前記順番の末尾のＬＡＮ端末の回線処理部（よ
前記順番の先頭のＬＡＮ端末に対して発呼を行なＬ＼
データチャネルを接続すも なｋ ＬＡＮ端末間の呼
設定ζ上 構内交換機を介した従来の方式を用いも
前記順番の末尾のＬＡＮ端末と前記順番の先頭のＬＡＮ
端末との間にデータチャネルが接続されると、前記順番
の先頭のＬＡＮ端末のトークン制御部（友 フリート−
クンを生威し 前記順番の次のＬＡＮ端末との間に接続
されたデータチャネルにより、前記順番の次のＬＡＮ端
末のトークン制御部へ前記フリート−クンを送信すも
以下、ＬＡＮ稼働時において（友 従来のトークン巡回
方式に従って、各ＬＡＮ端末のトークン制御部（上 前
記各ＬＡＮ端末の回線制御部を介して、前記順番でトー
クンおよびデータパケットの巡回を行な（＼ 前記各Ｌ
ＡＮ端末のデータ処理部（よ受信したデータパケットお
よび送信するデータパケットの処理を行なう。な、ｔａ
ＬＡＮ稼働時においてｉｔ 前記順番における末尾の
次は先頭に戻るようにしてトークンおよびデータパケッ
トの巡回を行なう。Sogen The present invention
To eliminate the increase in LAN installation costs for private branch exchanges, and to build a token ring type LAN that connects each LAN terminal with two B-channel lines of the ISDN basic interface. LAN terminal ζ;
A line processing unit that connects data channels to two other LAN terminals using the two B channel lines of the ISDN basic interface, and a fleet unit when starting up the LAN.
The functions of the LAN terminal configured as described above are explained below. As explained in the following, when the LAN is started;
After specifying the order of all LAN terminals used in the AN, the line processing unit of the first LAN terminal in the order makes a call to the next LAN terminal in the order.8 The LAN that received the call Set up a call for one line of B channel of ISDN basic interface 2B+D with the terminal (\connect data channel).
The line processing unit of the AN terminal (above) Using one free B channel line, make a call to the next LAN terminal in the same way (connect the data channel and repeat this procedure as described above). This process is repeated until a call is made to the last LAN terminal in the order and the data channel is connected.Then, the line processing unit of the last LAN terminal in the order
Make a call to the first LAN terminal in the above order.L\
Even if a data channel is connected, a call is set up between LAN terminals. Even if the conventional method via a private branch exchange is used, the LAN terminal at the end of the order and the LAN at the beginning of the order
When the data channel is connected to the terminal, the token control unit (friend fleet) of the first LAN terminal in the order
The Fleet-Kun is sent to the token control unit of the next LAN terminal in the order through the data channel connected to the next LAN terminal in the order. According to the conventional token circulation method, tokens and data packets are circulated in the above order via the token control unit of each LAN terminal (1) and the line control unit of each LAN terminal (1).
Data processing unit of AN terminal (processes received data packets and transmitted data packets)
When the LAN is in operation, tokens and data packets are circulated from the end to the beginning in the above order.
以上により、ＬＡＮ端末により、 トークンリング型の
ＬＡＮを構築することが可能となん実施例
本発明の実施例の各ＬＡＮ端末の構成図を第１図に示も
第１図において、 １は回線処理部であり、 ２はト
ークン制御部であり、３はデータ処理部であり、４はＩ
ＳＤＮ基本インタフェース２Ｂ＋ＤをサポートするＩＳ
ＤＮ回線であもまた 本発明に係るＬＡＮ端末３台と構
内交換機によりＬＡＮを構築する場合の例を第２図に示
す。第２図において、５．６．７はＬＡＮ端末であり、
８は構内交換機であり、 ９、１０、１１はＬＡＮ端
末間のデータチャネルであも
ＩＳＤＮ回線４ζ表 回線処理部１に接続されも回線処
理部１ ｌ友 ユーザからの指定により決定されるＬ
ＡＮ端末の順番における自己の次のＬＡＮ端末の番号を
保持すん ここで４！ＬＡＮ端末５は自己を１番目とし
てＬＡＮ端末６の番号を保持Ｌ ＬＡＮ端末６は自己
を２番目としてＬＡＮ端末７の番号を保持り、ＬＡＮ端
末７は自己を３番目として先頭に戻りＬＡＮ端末５の番
号を保持すム そして、ＬＡＮ端末５の回線処理部１が
ＬＡＮ端末６に発呼し 構内交換機８を介してＬＡＮ端
末５とＬＡＮ端末６の間でＢチャネル１回線によるデー
タチャネル９の接続を行なｔ、ｔＬＡＮ端末６の回線処
理部１がＬＡＮ端末７に発呼し 構内交換機８を介して
ＬＡＮ端末６とＬＡＮ端末７の間でデータチャネル１０
の接続を行なＬＬＬＡＮ端末７の回線処理部１がＬＡＮ
端末５に発呼し構内交換機８を介してＬＡＮ端末７とＬ
ＡＮ端末５の間でＢチャネル１回線によるデータチャネ
ル１１の接続を行なう。From the above, it is possible to construct a token ring type LAN using LAN terminals.Example A configuration diagram of each LAN terminal according to an embodiment of the present invention is shown in Fig. 1.In Fig. 1, 1 indicates line processing. 2 is a token control unit, 3 is a data processing unit, and 4 is an I
IS that supports SDN basic interface 2B+D
FIG. 2 shows an example of constructing a LAN using three LAN terminals and a private branch exchange according to the present invention. In Figure 2, 5.6.7 is a LAN terminal,
8 is a private branch exchange, and 9, 10, and 11 are data channels between LAN terminals.
Holds the number of the next LAN terminal in the order of AN terminals.Here 4! The LAN terminal 5 holds the number of the LAN terminal 6 with itself as the first. The LAN terminal 6 holds the number of the LAN terminal 7 with itself as the second. The LAN terminal 7 returns to the beginning with itself as the third. Then, the line processing unit 1 of the LAN terminal 5 makes a call to the LAN terminal 6, and the data channel 9 is connected by one B channel line between the LAN terminal 5 and the LAN terminal 6 via the private branch exchange 8. t, the line processing unit 1 of the LAN terminal 6 makes a call to the LAN terminal 7, and the data channel 10 is established between the LAN terminal 6 and the LAN terminal 7 via the private branch exchange 8.
The line processing unit 1 of the LLLAN terminal 7 connects to the LAN.
A call is made to terminal 5 and connected to LAN terminal 7 and L via private branch exchange 8.
A data channel 11 is connected between AN terminals 5 using one B channel line.
データチャネル９、１０、１１の接続完了檄ＬＡＮ端末
５のトークン制御部２力文 フリート−クンを生成Ｌ
ＬＡＮ端末６との間に接続されたデータチャネル９に
より、ＬＡＮ端末６のトークン制御部２へ前記フリート
−クンを送信すも以下、ＬＡＮ稼働時において（上 従
来のトークン巡回方式に従って、各ＬＡＮ端末のトーク
ン制御部２（よ 各ＬＡＮ端末の回線制御部１を介して
、前記順番でトークンおよびデータパケットの巡回を行
なＩ、Ｘ、各ＬＡＮ端末のデータ処理部３１上 受信
したデータパケットおよび送信するデータパケットの処
理を行なう。Connection of data channels 9, 10, and 11 completed. Token control unit 2 of LAN terminal 5 generates a fleet token.
The free token is sent to the token control unit 2 of the LAN terminal 6 through the data channel 9 connected to the LAN terminal 6. The token control unit 2 (Y) circulates the tokens and data packets in the above order through the line control unit 1 of each LAN terminal, and sends the received data packets and data to the data processing unit 31 of each LAN terminal. Processes data packets.
例えｔｆ、ＬＡＮ端末７からＬＡＮ端末６ヘデータを送
信する場Ａ ＬＡＮ端末７のデータ処理部３力丈 送
信データと宛先としてＬＡＮ端末６のアドレスよりデー
タパケットを生成り、、ＬＡＮ端末７のトークン制御部
２がフリート−クンを検出し前記フリート−クンをビジ
ートークンに転換し前記ビジートークンと前記データパ
ケットをデータチャネル１１によりＬＡＮ端末５へ送信
すもＬＡＮ端末５のトークン制御部２（友 ビジートー
クンを検出するｈ支 宛先を示すアドレスが自己のもの
ではないた取 そのまま前記ビジートークンと前記デー
タパケットをデータチャネル９によりＬＡＮ端末６へ送
信す＆ ＬＡＮ端末６のトークン制御部２（上 前記
ビジートークンを検出しかつ宛先をしめずアドレスが自
己のものであるた△前記データパケットをＬＡＮ端末６
のデータ処理部３へ渡す。データ処理部３は前記データ
パケットよりデータを抽出し処理を行なう。For example, when transmitting data from the LAN terminal 7 to the LAN terminal 6, the data processing unit 3 of the LAN terminal 7 generates a data packet from the transmitted data and the address of the LAN terminal 6 as the destination, and controls the token of the LAN terminal 7. The token controller 2 of the LAN terminal 5 detects a fleet token, converts the fleet token into a busy token, and transmits the busy token and the data packet to the LAN terminal 5 via the data channel 11. If the address indicating the destination is not its own, the busy token and the data packet are directly transmitted to the LAN terminal 6 via the data channel 9 & the token control unit 2 of the LAN terminal 6 (upper) △ Since the address is its own without specifying the destination, the data packet is transferred to the LAN terminal 6.
The data is passed to the data processing unit 3. The data processing unit 3 extracts data from the data packet and processes it.
以上のよう！ＱＬＡＮ端末５．６、７を用いることで、
従来どおりの構内交換機８とＩＳＤＮ回線４に対しＬＡ
Ｎ付設コストを増加させることなく、 トークンリング
型のＬＡＮが構築できる。ま？、ＬＡＮ稼働時に（上
呼設定の処理が新たに生じないことから構内交換機８の
負荷を軽減できも発明の効果
本発明に係るＬＡＮ端末（よ 以上説明したように構成
されているの℃ 構内交換機およびＩＳＤＮ回線を特殊
化することなくトークンリング型のＬＡＮを構築でき、
ＬＡＮ付設コストを軽減できまｆ、、、ＬＡＮ稼働時に
おいて構内交換機に呼設定の処理が新たに生じないこと
か転 構内交換機の負荷を軽減することが可能となんThat's all! By using QLAN terminal 5.6, 7,
LA for conventional private branch exchange 8 and ISDN line 4
A token ring type LAN can be constructed without increasing installation costs. Ma? , when the LAN is running (top)
The load on the private branch exchange 8 can be reduced because no new call setup processing is required.Effects of the Invention The LAN terminal according to the present invention (configured as described above) has a specialized private branch exchange and ISDN line. You can build a token ring type LAN without having to
It is possible to reduce the cost of installing a LAN.It is possible to reduce the load on the private branch exchange because there is no additional call setup processing on the private branch exchange when the LAN is in operation.
第１図は本発明の実施例の構成は 第２図は本発明を用
いたＬＡＮの構築例の構成国であも１・・・回線処理臥
２・・・トークン制御部 ３・・・データ処理Ｎ５．
４・・・ＩＳＤＮ回颯 ５・・・ＬＡＮ端太６・・・Ｌ
ＡＮ端、ｔ ７・・・ＬＡＮ端丸 ８・・・構内交換［
９・・・データチャネ／ｌ、、１０・・・データチャネ
／に１１・・・データチャネル鴎FIG. 1 shows the configuration of an embodiment of the present invention. FIG. 2 shows the constituent countries of an example of LAN construction using the present invention. 1... Line processing 2... Token control unit 3... Data Processing N5.
4...ISDN connection 5...LAN tip 6...L
AN end, t 7... LAN end round 8... Internal exchange [
9...Data channel/l, 10...Data channel/ni 11...Data channel gull
Claims (1)
他の２台のＬＡＮ端末とそれぞれデータチャネルの接続
を行なう回線処理部と、ＬＡＮ起動時のフリートークン
の生成送信およびＬＡＮ稼働時のトークン巡回方式の制
御を行なうトークン制御部と、送受信されるデータパケ
ットの処理を行なうデータ処理部とを備えてなるＬＡＮ
端末。A line processing unit that connects data channels to two other LAN terminals using the two B-channel lines of the ISDN basic interface, generates and sends free tokens when the LAN is activated, and controls the token circulation method when the LAN is in operation. A LAN comprising a token control unit and a data processing unit that processes transmitted and received data packets.
terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18112189A JPH0344236A (en) | 1989-07-12 | 1989-07-12 | Lan terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18112189A JPH0344236A (en) | 1989-07-12 | 1989-07-12 | Lan terminal equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0344236A true JPH0344236A (en) | 1991-02-26 |
Family
ID=16095223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18112189A Pending JPH0344236A (en) | 1989-07-12 | 1989-07-12 | Lan terminal equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0344236A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0632627A2 (en) | 1993-06-30 | 1995-01-04 | Toyota Jidosha Kabushiki Kaisha | Communication device |
| US5748625A (en) * | 1993-11-29 | 1998-05-05 | Nec Corporation | Inter-LAN connection method using ISDN |
| KR100464673B1 (en) * | 2002-09-12 | 2005-01-03 | 이경훈 | Washable indoor slipper |
-
1989
- 1989-07-12 JP JP18112189A patent/JPH0344236A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0632627A2 (en) | 1993-06-30 | 1995-01-04 | Toyota Jidosha Kabushiki Kaisha | Communication device |
| US5724029A (en) * | 1993-06-30 | 1998-03-03 | Toyota Jidosha Kabushiki Kaisha | Communication interconnection device with processing interrupt based on token address |
| US5748625A (en) * | 1993-11-29 | 1998-05-05 | Nec Corporation | Inter-LAN connection method using ISDN |
| KR100464673B1 (en) * | 2002-09-12 | 2005-01-03 | 이경훈 | Washable indoor slipper |
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