JPH06205050A - Multi-casting processing method for lan/wide band isdn connecting device - Google Patents
Multi-casting processing method for lan/wide band isdn connecting deviceInfo
- Publication number
- JPH06205050A JPH06205050A JP1591893A JP1591893A JPH06205050A JP H06205050 A JPH06205050 A JP H06205050A JP 1591893 A JP1591893 A JP 1591893A JP 1591893 A JP1591893 A JP 1591893A JP H06205050 A JPH06205050 A JP H06205050A
- Authority
- JP
- Japan
- Prior art keywords
- lan
- packet
- area network
- wide area
- frame
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、広域網を介したＬＡＮ
及びＬＡＮ端末相互間の接続方法に係わり、特に広帯域
ＩＳＤＮ（以下Ｂ−ＩＳＤＮと示す）と、ＬＡＮの相互
接続を行う接続装置の同報処理方法に関する。BACKGROUND OF THE INVENTION The present invention relates to a LAN through a wide area network.
And a connection method between LAN terminals, and more particularly, to a broadcast processing method for a broadband ISDN (hereinafter referred to as B-ISDN) and a connection device for interconnecting a LAN.
【０００２】[0002]
【従来の技術】図１に、本発明が対象とする網構成を示
す。ＬＡＮ２００−１、２００−２、２００−３は、Ｌ
ＡＮ−広域網接続装置（以下接続装置と略す）１００−
１、１００−２、１００−３を介して、Ｂ−ＩＳＤＮ４
４０と接続し、接続装置１００−１、１００−２、１０
０−３と、Ｂ−ＩＳＤＮ４４０とは、加入者線４００−
１、４００−２、４００−３により接続している。ＬＡ
Ｎ２００−１、２００−２、２００−３には、端末３１
０−１、３１０−２、３１０−３、３１０−４、３１０
−５、３１０−６が接続される。2. Description of the Related Art FIG. 1 shows a network configuration targeted by the present invention. LAN 200-1, 200-2, 200-3 is L
AN-wide area network connection device (hereinafter referred to as connection device) 100-
B-ISDN4 via 1, 100-2, 100-3
40, and connecting devices 100-1, 100-2, 10
0-3 and B-ISDN 440 are subscriber lines 400-
1, 400-2, and 400-3 are connected. LA
N200-1, 200-2, and 200-3 have terminals 31
0-1, 310-2, 310-3, 310-4, 310
-5 and 310-6 are connected.
【０００３】接続装置１００は、ＬＡＮ２００を介し
て、端末３１０から受信したパケット中のアドレスフィ
ールドの値を基に、接続装置１００の内部のテーブルを
検索し、次に送出すべき接続装置、及びＢ−ＩＳＤＮ４
４０でのあて先アドレスを決定する。さらに、Ｂ−ＩＳ
ＤＮ４４０で規定された方式に従った転送方式で、加入
者線４００にデータを送出する。Ｂ−ＩＳＤＮ４４０か
ら受信したデータに対しても同様に、宛先アドレスと、
転送方式をＬＡＮ２００で規定された方式に一致させ、
ＬＡＮ２００に送出する。The connection device 100 searches the internal table of the connection device 100 based on the value of the address field in the packet received from the terminal 310 via the LAN 200, and the connection device to be transmitted next, and B. -ISDN4
Determine the destination address at 40. Furthermore, B-IS
The data is transmitted to the subscriber line 400 by the transfer method according to the method specified by DN440. Similarly, for the data received from the B-ISDN 440, the destination address,
Match the transfer method to the method specified by LAN200,
It is sent to the LAN 200.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、従来の
接続装置では、同報フレーム処理において、端末３１０
から受信したフレームが同報フレームのとき、無条件に
Ｂ−ＩＳＤＮ４４０を経由して、相手接続装置に送信し
てしまう為、余分な料金がかかるとともに、広域網回線
のトラフィツク量が増大してしまうという問題があっ
た。However, in the conventional connection device, the terminal 310 is used in the broadcast frame processing.
When the frame received from is a broadcast frame, it is unconditionally transmitted to the other device via the B-ISDN 440, so that an extra charge is incurred and the amount of traffic on the wide area network line increases. There was a problem.
【０００５】本発明は、このような問題を解決したもの
であり、その目的とするところは、広域網回線でのトラ
フィツク量の抑止と、広域網回線での料金減少ができる
ＬＡＮ−広帯域ＩＳＤＮ接続装置の同報処理方法を提供
することである。The present invention solves such a problem, and an object of the present invention is to suppress a traffic amount in a wide area network line and reduce a charge in the wide area network line by a LAN-broadband ISDN connection. It is to provide a broadcast processing method of a device.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成する為
に、本発明によるＬＡＮ−広帯域ＩＳＤＮ接続装置の同
報処理方法は、接続装置に、ネットワークアドレスとＭ
ＡＣアドレス対応ＩＰアドレステーブル及びサポートパ
ケット種別テーブルを記録させ、ＬＡＮから受信したパ
ケットが同胞フレームのとき、パケット種別により広域
網を介して対向する端末に代って、対応したテーブルに
基づいて対応関係を応答又はフレームを廃棄するように
したことを特徴とする。In order to achieve the above object, a broadcast processing method for a LAN-broadband ISDN connection device according to the present invention is such that a connection device is provided with a network address and an M address.
The IP address table and the support packet type table corresponding to the AC address are recorded, and when the packet received from the LAN is a companion frame, the correspondence relation is based on the corresponding table instead of the opposite terminal via the wide area network depending on the packet type. Response or frame is discarded.
【０００７】[0007]
【作用】本発明にあっては、接続装置がＭＡＣアドレス
対応ＩＰアドレステーブル及びサポートパケット種別テ
ーブルに基づいて、ＬＡＮから受信した同報フレームの
パケットを認識することにより、広域網回線に対する余
分なトラフイック量の抑止と、余分な料金を抑止する。According to the present invention, the connection device recognizes the packet of the broadcast frame received from the LAN based on the IP address table corresponding to the MAC address and the support packet type table, so that the extra traffic to the wide area network line can be obtained. Suppress the amount and the extra charges.
【０００８】[0008]
【実施例】以下、本発明によるＬＡＮ−広帯域ＩＳＤＮ
接続装置の同報処理方式を図面を参照して説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS LAN-Broadband ISDN according to the present invention
A broadcast processing method of the connection device will be described with reference to the drawings.
【０００９】まず、図１において、端末３１０−１が、
他の端末３１０−２〜３１０−６のＭＥＣ（Ｍｅｄｉａ
Ａｃｃｅｓｓ Ｃｏｎｔｒｏｌ）アドレスを得る手段
として、ＡＲＰ（Ａｄｄｒｅｓｓ Ｒｅｓｏｌｕｔｉｏ
ｎ Ｐｒｏｔｏｃｏｌ）パケットによる同報フレームを
流すとする。この場合、従来であれば、接続装置１００
−１からＢ−ＩＳＤＮ４４０を経由し、相手端末３１０
−３〜３１０〜６にフレームが流れてしまうことにな
る。First, in FIG. 1, the terminal 310-1
MEC (Media) of other terminals 310-2 to 310-6
ARP (Address Resolution) is a means for obtaining an Access Control address.
(n Protocol) packet broadcast frame is transmitted. In this case, in the conventional case, the connection device 100
-1 through B-ISDN 440 and partner terminal 310
The frame will flow from -3 to 310 to 6.
【００１０】そこで、接続装置１００に、図２、図３で
示すテーブルを、保守管理用表示装置等を用いて外部か
ら登録しておく。図２中、２１は相手端末３１０−３〜
３１０−６迄の仮想ＭＡＣ（Ｍｅｄｉａ Ａｃｃｅｓｓ
Ｃｏｎｔｒｏｌ）アドレスを示し、２２は相手端末３
１０−３〜３１０−６迄のＩＰアドレスを示す。又、図
３の２３は接続装置１００でサポートする同報処理時の
パケット種別を示す。Therefore, the tables shown in FIGS. 2 and 3 are registered in the connection device 100 from the outside using a maintenance management display device or the like. In FIG. 2, reference numeral 21 denotes the partner terminal 310-3 to.
Virtual MAC (Media Access) up to 310-6
Control) address, and 22 is the other terminal 3
IP addresses 10-3 to 310-6 are shown. Reference numeral 23 in FIG. 3 shows a packet type at the time of the broadcast processing supported by the connection adapter 100.
【００１１】端末３１０−１より、他の全端末３１０−
２〜３１０−６宛に、同報フレームを送信した場合の接
続装置１００−１の処理を、図４に従って説明する。図
４は、接続装置１００−１でのＬＡＮフレーム受信処理
のルーチンを示すフローチャートである。From the terminal 310-1, all other terminals 310-
The process of the connection adapter 100-1 when a broadcast frame is transmitted to 2 to 310-6 will be described with reference to FIG. FIG. 4 is a flowchart showing a routine of a LAN frame receiving process in the connection adapter 100-1.
【００１２】図４において、ＬＡＮフレーム受信処理プ
ログラムがスタートすると、まず、ステップＳ１におい
て、端末３１０−１から受信したフレームの長さが、規
定範囲内か否かを判定する。このとき、規定範囲外であ
れば、ステップＳ１１で受信したフレ−ムの廃棄処理を
行い、ＬＡＮフレーム受信処理ルーチンを終了する。In FIG. 4, when the LAN frame reception processing program starts, first, in step S1, it is determined whether or not the length of the frame received from the terminal 310-1 is within a specified range. At this time, if it is out of the specified range, the frame received in step S11 is discarded, and the LAN frame reception processing routine ends.
【００１３】次のステップＳ２では、受信したフレーム
中のＤＡ（ＤｅｓｔｎａｔｉｏｎＡｄｄｒｅｓｓ）部に
て、同報フレームか、個別フレームかを判定する。この
とき、個別フレームであれば、ステップＳ２１にて、図
２のＭＡＣアドレス対応ＩＰアドレステーブルに基づ
き、該当ＭＡＣアドレスが登録していれば、広域網回線
送出処理を行い、ＬＡＮフレーム処理ルーチンを終了す
る。In the next step S2, a DA (Destination Address) section in the received frame determines whether the frame is a broadcast frame or an individual frame. At this time, if it is an individual frame, in step S21, based on the MAC address corresponding IP address table of FIG. 2, if the corresponding MAC address is registered, wide area network line transmission processing is performed, and the LAN frame processing routine ends. To do.
【００１４】ステップＳ３では、受信したパケットを、
図３のサポートパケット種別テーブルにより判定し、サ
ポートすべきパケットで無ければ、ステップＳ３１に
て、受信したフレームの廃棄処理を行い、ＬＡＮフレー
ム受信処理ルーチンを終了する。In step S3, the received packet is
If the packet is not a packet to be supported as determined by the support packet type table in FIG. 3, the received frame is discarded in step S31, and the LAN frame reception processing routine ends.
【００１５】次にステップＳ４にて、パケット種別を判
定する。パケット種別がＡＲＰ以外であれば、ステップ
Ｓ４１にて、広域網回線送出処理を行い、ＬＡＮフレー
ム受信処理ルーチンを終了する。パケット種別がＡＲＰ
であれば、ステップＳ５にて、図２のＭＡＣアドレス対
応ＩＰアドレステーブルに基づき、ＡＲＰ要求パケット
中の宛先ＩＰアドレスに対応する仮想ＭＡＣアドレスを
設定し、ステップＳ６にて、他の端末３１０−３〜３１
０−６に代って端末３１０−１に返送する処理を行い、
ＬＡＮフレーム受信処理ルーチンを終了する。Next, in step S4, the packet type is determined. If the packet type is other than ARP, the wide area network line transmission processing is performed in step S41, and the LAN frame reception processing routine ends. Packet type is ARP
In that case, in step S5, the virtual MAC address corresponding to the destination IP address in the ARP request packet is set based on the MAC address corresponding IP address table in FIG. 2, and in step S6, the other terminal 310-3 is set. ~ 31
Perform processing of returning to the terminal 310-1 in place of 0-6,
The LAN frame reception processing routine ends.
【００１６】以上のように、本実施例においては、従来
ＬＡＮと広域網接続時において、ＬＡＮから受信したパ
ケットが同報フレームのとき、無条件に広域網回線を経
由して、相手接続装置に送信することを防止し、広域網
回線でのトラフィック量を抑止する利点がある。As described above, in the present embodiment, when the conventional LAN is connected to the wide area network and the packet received from the LAN is a broadcast frame, it is unconditionally passed to the partner connection device via the wide area network line. There is an advantage that transmission is prevented and traffic volume on the wide area network line is suppressed.
【００１７】[0017]
【発明の効果】本発明は、上記実施例より明らかなよう
に、接続装置にＭＡＣアドレス対応ＩＰアドレステーブ
ル及びサポートパケット種別テーブルを持たせ、ＬＡＮ
から受信した同報フレームのパケットを認識することに
より、広域網回線に対する余分なトラフイック量の抑止
と、余分な料金を抑止するという効果を有する。According to the present invention, as is apparent from the above embodiment, the connection device is provided with the MAC address corresponding IP address table and the support packet type table, and
By recognizing the packet of the broadcast frame received from the device, it is possible to suppress an excessive traffic amount for the wide area network line and an excessive charge.
【図１】本実施例における網構成を示す説明図である。FIG. 1 is an explanatory diagram showing a network configuration according to an embodiment.
【図２】ＭＡＣアドレス−ＩＰアドレス対応テーブルを
示す図である。FIG. 2 is a diagram showing a MAC address-IP address correspondence table.
【図３】サポートパケット種別テーブルを示す図であ
る。FIG. 3 is a diagram showing a support packet type table.
【図４】ＬＡＮフレーム受信時の処理を示すフローチャ
ートである。FIG. 4 is a flowchart showing a process when a LAN frame is received.
１００−１〜１００−３ 接続装置 ２００−１〜２００−３ ＬＡＮ ３１０−１〜３１０−６ 端末装置 ４００−１〜４００−３ 加入者線 ４４０ Ｂ−ＩＳＤＮ 100-1 to 100-3 Connection device 200-1 to 200-3 LAN 310-1 to 310-6 Terminal device 400-1 to 400-3 Subscriber line 440 B-ISDN
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 8529−5Ｋ Ｈ０４Ｌ 11/20 １０２ Ｚ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location 8529-5K H04L 11/20 102 Z
Claims (1)
ドレステーブル及びサポートパケット種別テーブルを持
たせ、ＬＡＮから受信したパケットが同報フレームのと
き、パケット種別により広域網を介して対向する端末に
代って、対応したテーブルに基づいて対応関係を応答又
はフレームを廃棄するようにしたことを特徴とするＬＡ
Ｎ−広帯域ＩＳＤＮ接続装置の同報処理方法。1. A connection device is provided with an IP address table corresponding to a MAC address and a support packet type table, and when a packet received from a LAN is a broadcast frame, it is replaced by a terminal that opposes via a wide area network depending on the packet type. The LA is characterized in that the response or the frame is discarded based on the corresponding table.
N-Broadband ISDN connection device broadcast processing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1591893A JP3193503B2 (en) | 1993-01-05 | 1993-01-05 | Broadcast processing method of inter-LAN connecting device and inter-LAN connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1591893A JP3193503B2 (en) | 1993-01-05 | 1993-01-05 | Broadcast processing method of inter-LAN connecting device and inter-LAN connecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06205050A true JPH06205050A (en) | 1994-07-22 |
| JP3193503B2 JP3193503B2 (en) | 2001-07-30 |
Family
ID=11902163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1591893A Expired - Lifetime JP3193503B2 (en) | 1993-01-05 | 1993-01-05 | Broadcast processing method of inter-LAN connecting device and inter-LAN connecting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3193503B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6081845A (en) * | 1997-03-18 | 2000-06-27 | Fujitsu Limited | ARP server |
| US7406541B2 (en) | 2001-06-26 | 2008-07-29 | Nec Corporation | Accounting method and system in a packet communication network |
-
1993
- 1993-01-05 JP JP1591893A patent/JP3193503B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6081845A (en) * | 1997-03-18 | 2000-06-27 | Fujitsu Limited | ARP server |
| US7406541B2 (en) | 2001-06-26 | 2008-07-29 | Nec Corporation | Accounting method and system in a packet communication network |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3193503B2 (en) | 2001-07-30 |
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