JPH0730553A - Cell switch - Google Patents
Cell switchInfo
- Publication number
- JPH0730553A JPH0730553A JP17334393A JP17334393A JPH0730553A JP H0730553 A JPH0730553 A JP H0730553A JP 17334393 A JP17334393 A JP 17334393A JP 17334393 A JP17334393 A JP 17334393A JP H0730553 A JPH0730553 A JP H0730553A
- Authority
- JP
- Japan
- Prior art keywords
- control information
- cell
- line
- switch
- exchange
- 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
Links
Landscapes
- Data Exchanges In Wide-Area Networks (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
Abstract
(57)【要約】
【目的】 複雑な速度変換を不要とするセル交換機を実
現する。
【構成】 セルの転送経路とセルの制御情報の転送経路
とを分離する。セルおよび制御情報は速度変換を要せず
にスイッチ部に転送される。スイッチ部では、分離され
て送られてきたセルとその制御情報とを参照しながらセ
ルを所望の出回線に送出する。
【効果】 セル交換機のハードウェア構成を簡単にでき
る。
(57) [Summary] [Purpose] To realize a cell exchange that does not require complicated speed conversion. [Configuration] A cell transfer path and a cell control information transfer path are separated. The cells and control information are transferred to the switch section without the need for speed conversion. The switch unit sends the cell to a desired outgoing line while referring to the separated and sent cell and its control information. [Effect] The hardware configuration of the cell exchange can be simplified.
Description
【０００１】[0001]
【産業上の利用分野】本発明は非同期転送モード（ＡＴ
Ｍ）の交換機に利用する。特に、セルを所望の出回線に
転送するための制御情報の付与技術に関する。BACKGROUND OF THE INVENTION The present invention relates to an asynchronous transfer mode (AT
It is used for the switch of M). In particular, the present invention relates to a technique of adding control information for transferring a cell to a desired outgoing line.
【０００２】[0002]
【従来の技術】従来例を図４を参照して説明する。図４
は従来例を説明する図である。図４（ａ）に示すよう
に、セル交換機に入力するセルの出回線を指定するため
の制御情報を入力されたセルの先頭または末尾に付与
し、通過信号線４を介してこのセルを転送する（セルの
先頭または末尾に制御情報を付与して用いる例として特
開昭６２−１０５５５４号公報、特開平２−１４００３
７号公報、特開平２−２５２３４１号公報参照）。2. Description of the Related Art A conventional example will be described with reference to FIG. Figure 4
FIG. 9 is a diagram illustrating a conventional example. As shown in FIG. 4 (a), control information for designating the outgoing line of the cell to be input to the cell exchange is added to the beginning or end of the input cell, and this cell is transferred via the passing signal line 4. (As an example in which control information is added to the beginning or end of a cell to be used, JP-A-62-105554 and JP-A-2-14003 are used.
No. 7, JP-A-2-252341).
【０００３】図４（ｂ）に示すように、通過信号線４の
内部には制御情報とセルとが交互に時系列的に多重され
ている。制御情報には入回線のアドレス（ＩＮ）と出回
線のアドレス（ＯＵＴ）とが書込まれている。As shown in FIG. 4B, control information and cells are alternately time-sequentially multiplexed inside the passing signal line 4. An address (IN) of an incoming line and an address (OUT) of an outgoing line are written in the control information.
【０００４】[0004]
【発明が解決しようとする課題】このような方式では、
セル交換機に入力するセル毎に制御情報はセルの先頭ま
たは末尾に付与されている。そのため、付与した制御情
報相当分だけセル交換機内を通過できる情報量が減少す
る。これを回避するためには付与した制御情報相当分だ
けセル交換機内のセルの通信速度を増加させる必要があ
り、複雑な速度変換処理機能が必要となる。SUMMARY OF THE INVENTION In such a system,
The control information is added to the beginning or the end of each cell input to the cell exchange. Therefore, the amount of information that can pass through the cell exchange is reduced by the amount corresponding to the assigned control information. In order to avoid this, it is necessary to increase the communication speed of the cell in the cell exchange by an amount corresponding to the assigned control information, and a complicated speed conversion processing function is required.
【０００５】本発明は、このような背景に行われたもの
であり、複雑な速度変換を不要とするセル交換機を提供
することを目的とする。The present invention has been made against such a background, and an object thereof is to provide a cell exchange which does not require complicated speed conversion.
【０００６】[0006]
【課題を解決するための手段】本発明は、非同期転送モ
ードのセルが到来する複数の入回線と、この入回線毎に
それぞれ設けられ前記セルのヘッダ情報から出回線のア
ドレス情報を含む制御情報を生成する手段を備えた回線
対応部と、この回線対応部から送出される前記制御情報
および前記セルを通話路を介して入力しこの制御情報に
したがって前記セルを指定された出回線に出力するスイ
ッチ部とを含むセル交換機である。SUMMARY OF THE INVENTION According to the present invention, a plurality of incoming lines to which cells in the asynchronous transfer mode arrive, and control information including address information of outgoing lines from the header information of each cell provided for each incoming line. A line interface provided with means for generating, and the control information and the cell transmitted from the line interface are input through a communication path, and the cell is output to a designated outgoing line according to the control information. A cell exchange including a switch unit.
【０００７】ここで、本発明の特徴とするところは、前
記通話路には前記セルが通過する通過信号線の他に前記
回線対応部と前記スイッチ部とを接続する少なくとも一
つの制御情報専用線を設け、前記回線対応部は、前記制
御情報をこの制御情報専用線を介して前記スイッチ部に
送出する手段を備えたところにある。Here, a feature of the present invention is that at least one control information dedicated line connecting the line corresponding unit and the switch unit in addition to a passing signal line through which the cell passes in the communication path. And the line corresponding unit is provided with means for sending the control information to the switch unit via the control information dedicated line.
【０００８】このセル交換機を複数段に接続して、さら
に規模の大きいセル交換機を構成することもできる。こ
のときは、それぞれの段毎の制御情報が制御情報専用線
に時系列的に多重されることが望ましい。It is also possible to construct a cell exchange having a larger scale by connecting the cell exchanges in a plurality of stages. At this time, it is desirable that the control information for each stage is multiplexed in time series on the control information dedicated line.
【０００９】[0009]
【作用】入回線から入力されたセルを所望の出回線に出
力するための制御情報を制御情報専用線によりスイッチ
部に送出する。また、セルは通過信号線を介してスイッ
チ部に送出される。The control information for outputting the cell input from the incoming line to the desired outgoing line is sent to the switch section through the dedicated control information line. Further, the cells are sent to the switch unit via the passing signal line.
【００１０】スイッチ部には、例えばセルを蓄積するセ
ルバッファと制御情報を蓄積する制御情報バッファがあ
り、一時蓄積されたセルと制御情報とをそれぞれ参照し
てセルを所望の出回線に送出する。The switch unit has, for example, a cell buffer for accumulating cells and a control information buffer for accumulating control information. The cells are transmitted to a desired outgoing line by referring to the temporarily accumulated cells and control information, respectively. .
【００１１】これにより、制御情報が付与されても速度
変換を行うことなくセル転送を行うことができる。As a result, even if the control information is added, the cell transfer can be performed without performing the speed conversion.
【００１２】[0012]
【実施例】本発明第一実施例の構成を図１を参照して説
明する。図１は本発明第一実施例装置のブロック構成お
よび通話路を示す図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the first embodiment of the present invention will be described with reference to FIG. FIG. 1 is a diagram showing a block configuration and a communication path of a first embodiment device of the present invention.
【００１３】本発明は、非同期転送モードのセルが到来
する複数の入回線１０1 〜１０n と、この入回線１０1
〜１０n 毎にそれぞれ設けられ前記セルのヘッダ情報か
ら出回線１１1 〜１１n のアドレス情報を含む制御情報
を生成する手段を備えた回線対応部１1 〜１n と、この
回線対応部１1 〜１n から送出される前記制御情報およ
び前記セルを通話路３1 〜３n を介して入力しこの制御
情報にしたがって前記セルを指定された出回線１１1 〜
１１n に出力するスイッチ部２とを含むセル交換機６で
ある。[0013] The present invention includes a plurality of input lines 10 1 to 10 n in which cells of an asynchronous transfer mode arrives, the incoming line 10 1
Line corresponding units 1 1 to 1 n each having a means for generating control information including address information of outgoing lines 11 1 to 11 n from the header information of the cell, which are provided for every 10 to 10 n, and the line corresponding unit 1 1 to 1 n is transmitted from inputs the control information and the cell via the speech path 3 1 to 3 n outgoing lines 11 1 to designated the cell in accordance with the control information
The cell switch 6 includes the switch unit 2 for outputting to 11 n .
【００１４】ここで、本発明の特徴とするところは、通
話路３1 〜３n には前記セルが通過する通過信号線４の
他に回線対応部１1 〜１n とスイッチ部２とを接続する
少なくとも一つの制御情報専用線５を設け、回線対応部
１1 〜１n は、前記制御情報をこの制御情報専用線５を
介してスイッチ部２に送出する手段を備えたところにあ
る。Here, the feature of the present invention resides in that, in addition to the passing signal line 4 through which the cell passes, the line corresponding parts 1 1 to 1 n and the switch part 2 are provided in the speech paths 3 1 to 3 n. at least one control information private line 5 connects provided, the line interface 1 1 to 1 n is in place with a means for sending to the switch unit 2 through the control information dedicated line 5 to the control information.
【００１５】次に、本発明第一実施例の動作を図１およ
び図２を参照して説明する。図２は通過信号線４および
制御情報専用線５を示す図である。制御情報専用線５は
通過信号線４をパラレル方向に拡大したビット線であ
る。ここでは、セルのデータは８ビットパラレル信号と
する。図１（ｂ）に示すように、セルのデータは８本の
通過信号線４に、制御情報は９番目のパラレル信号線で
ある制御情報専用線５に割り振る。図２（ａ）に通話路
３1 〜３n 内の状況のイメージを示す。Next, the operation of the first embodiment of the present invention will be described with reference to FIGS. FIG. 2 is a diagram showing the passing signal line 4 and the control information dedicated line 5. The dedicated control information line 5 is a bit line obtained by expanding the passing signal line 4 in the parallel direction. Here, the cell data is an 8-bit parallel signal. As shown in FIG. 1B, the cell data is assigned to the eight passing signal lines 4 and the control information is assigned to the control information dedicated line 5, which is the ninth parallel signal line. FIG. 2 (a) shows an image of the situation in the speech paths 3 1 to 3 n .
【００１６】回線対応部１1 〜１n からスイッチ部２へ
送出されるセルをスイッチ部２のどの出回線１１1 〜１
１n に出力させるかを示す制御情報を各セル毎に付与す
る。スイッチ部２内に入力された各セルは出回線１１1
〜１１n を示した制御情報に従った出回線１１1 〜１１
n にセルを送出する。図２（ｂ）に示すように、スイッ
チ部２にはセルバッファ４０および制御情報バッファ５
０があり、セルおよび制御情報は一時ここに蓄積されて
から制御部６０の制御により各バッファから送出され
る。The cells sent from the line corresponding units 1 1 to 1 n to the switch unit 2 are output lines 11 1 to 1 of the switch unit 2.
Control information indicating whether to output 1 n is added to each cell. Each cell input in the switch unit 2 is an outgoing line 11 1
To 11 n , outgoing lines 11 1 to 11 according to the control information indicating
Send a cell to n . As shown in FIG. 2B, the switch section 2 includes a cell buffer 40 and a control information buffer 5.
There is 0, and the cell and control information are temporarily stored here and then sent out from each buffer under the control of the control unit 60.
【００１７】次に、図３を参照して本発明第二実施例を
説明する。図３は本発明第二実施例を示す図である。本
発明第二実施例では、図３（ａ）に示すように、セル交
換機Ｘ６1 およびセル交換機Ｙ６2 を接続してさらに規
模の大きいセル交換機６を構成している。セル交換機Ｘ
６1 およびセル交換機Ｙ６2 を接続したときには、図３
（ｂ）に示すように１段目のセル交換機Ｘ６1 の制御情
報から制御情報専用線５に時系列的に順次多重する。Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 3 is a diagram showing a second embodiment of the present invention. In the second embodiment of the present invention, as shown in FIG. 3 (a), the cell exchange X6 1 and the cell exchange Y6 2 are connected to form a larger cell exchange 6. Cell switch X
When 6 1 and the cell exchange Y6 2 are connected, as shown in FIG.
As shown in (b), the control information of the first-stage cell switch X6 1 is sequentially multiplexed on the control information dedicated line 5 in time series.
【００１８】[0018]
【発明の効果】以上説明したように、本発明によれば制
御情報をパラレル方向に拡大した制御情報専用線に付与
することによって、制御情報付与による速度変換処理機
能をセル交換機内に備える必要がなくなり、さらにセル
交換機を多段に構成する交換機においてもこの方式を適
用することができる。簡単なハードウェア構成で制御情
報の付与が可能になる。As described above, according to the present invention, it is necessary to provide a speed conversion processing function by adding control information in the cell switch by adding the control information to the control information dedicated line expanded in the parallel direction. This system can also be applied to an exchange in which cell exchanges are configured in multiple stages. Control information can be added with a simple hardware configuration.
【図１】本発明第一実施例のブロック構成および通話路
を示す図。FIG. 1 is a diagram showing a block configuration and a communication path of a first embodiment of the present invention.
【図２】通過信号線および制御情報専用の信号線を示す
図。FIG. 2 is a diagram showing a passing signal line and a signal line dedicated to control information.
【図３】本発明第二実施例を示す図。FIG. 3 is a diagram showing a second embodiment of the present invention.
【図４】従来例の通話路を示す図。FIG. 4 is a diagram showing a conventional communication path.
１1 〜１n 回線対応部 ２ スイッチ部 ３1 〜３n 通話路 ４ 通過信号線 ５ 制御情報専用線 ６ セル交換機 ６1 セル交換機Ｘ ６2 セル交換機Ｙ １０1 〜１０n 入回線 １１1 〜１１n 出回線 ４０ セルバッファ ５０ 制御情報バッファ ６０ 制御部1 1 to 1 n line corresponding part 2 switch part 3 1 to 3 n speech path 4 passing signal line 5 control information dedicated line 6 cell exchange 6 1 cell exchange X 6 2 cell exchange Y 10 1 to 10 n incoming line 11 1 ... 11 n outgoing line 40 cell buffer 50 control information buffer 60 control unit
───────────────────────────────────────────────────── フロントページの続き (71)出願人 000000295 沖電気工業株式会社 東京都港区虎ノ門１丁目７番12号 (72)発明者 前田 哲郎 東京都港区芝五丁目７番１号 日本電気株 式会社内 (72)発明者 鈴木 晃二 東京都港区芝五丁目７番１号 日本電気株 式会社内 (72)発明者 宮保 憲治 東京都千代田区内幸町一丁目１番６号 日 本電信電話株式会社内 (72)発明者 山本 信行 東京都千代田区神田駿河台四丁目６番地 株式会社日立製作所内 (72)発明者 大場 康弘 神奈川県川崎市中原区上小田中1015番地 富士通株式会社内 (72)発明者 吉居 伸幸 東京都港区虎ノ門１丁目７番12号 沖電気 工業株式会社内 (72)発明者 松本 修一 東京都港区虎ノ門１丁目７番12号 沖電気 工業株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (71) Applicant 000000295 Oki Electric Industry Co., Ltd. 1-7-12 Toranomon, Minato-ku, Tokyo (72) Inventor Tetsuro Maeda 5-7-1, Shiba, Minato-ku, Tokyo NEC Corporation In-house (72) Inventor Koji Suzuki 5-7-1, Shiba, Minato-ku, Tokyo NEC Corporation In-house (72) In-house Kenji Miyabo 1-6, Uchiyuki-cho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation In-house (72) Inventor Nobuyuki Yamamoto 4-6 Kanda Surugadai, Chiyoda-ku, Tokyo Inside Hitachi, Ltd. (72) Inventor Yasuhiro Oba 1015 Uedoda, Nakahara-ku, Kawasaki-shi, Kanagawa Within Fujitsu Limited (72) Nobuyuki Yoshii 1-7-12 Toranomon, Minato-ku, Tokyo Oki Electric Industry Co., Ltd. (72) Inventor Shuichi Matsumoto 1-7-12, Toranomon, Minato-ku, Tokyo In the gas Industrial Co., Ltd.
Claims (3)
の入回線と、この入回線毎にそれぞれ設けられ前記セル
のヘッダ情報から出回線のアドレス情報を含む制御情報
を生成する手段を備えた回線対応部と、この回線対応部
から送出される前記制御情報および前記セルを通話路を
介して入力しこの制御情報にしたがって前記セルを指定
された出回線に出力するスイッチ部とを含むセル交換機
において、 前記通話路には前記セルが通過する通過信号線の他に前
記回線対応部と前記スイッチ部とを接続する少なくとも
一つの制御情報専用線を設け、 前記回線対応部は、前記制御情報をこの制御情報専用線
を介して前記スイッチ部に送出する手段を備えたことを
特徴とするセル交換機。1. A line provided with a plurality of incoming lines to which cells of an asynchronous transfer mode arrive, and means provided for each incoming line and generating control information including address information of outgoing lines from header information of the cells. In a cell exchange including a handling unit and a switch unit that inputs the control information and the cell transmitted from the line handling unit via a communication path and outputs the cell to a designated outgoing line according to the control information. In addition to the passage signal line through which the cell passes, at least one control information dedicated line that connects the line corresponding unit and the switch unit is provided in the communication path, and the line corresponding unit transmits the control information to the control information. A cell switch equipped with means for sending to the switch section via a dedicated line for control information.
続されたセル交換機。2. A cell exchange in which the cell exchange according to claim 1 is connected in a plurality of stages.
用線に時系列的に多重された請求項２記載のセル交換
機。3. The cell exchange according to claim 2, wherein the control information for each stage is time-sequentially multiplexed on the control information dedicated line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17334393A JP2577524B2 (en) | 1993-07-13 | 1993-07-13 | Cell exchange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17334393A JP2577524B2 (en) | 1993-07-13 | 1993-07-13 | Cell exchange |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0730553A true JPH0730553A (en) | 1995-01-31 |
| JP2577524B2 JP2577524B2 (en) | 1997-02-05 |
Family
ID=15958667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17334393A Expired - Lifetime JP2577524B2 (en) | 1993-07-13 | 1993-07-13 | Cell exchange |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2577524B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3512913B2 (en) | 1995-07-18 | 2004-03-31 | 富士通株式会社 | Station control system and station control method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH024069A (en) * | 1988-06-20 | 1990-01-09 | Fujitsu Ltd | Packet switching self-routine module |
| JPH02140037A (en) * | 1988-08-26 | 1990-05-29 | Hitachi Ltd | ATM switch |
-
1993
- 1993-07-13 JP JP17334393A patent/JP2577524B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH024069A (en) * | 1988-06-20 | 1990-01-09 | Fujitsu Ltd | Packet switching self-routine module |
| JPH02140037A (en) * | 1988-08-26 | 1990-05-29 | Hitachi Ltd | ATM switch |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2577524B2 (en) | 1997-02-05 |
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