JP3384369B2 - Communication system and communication method between exchanges - Google Patents
Communication system and communication method between exchangesInfo
- Publication number
- JP3384369B2 JP3384369B2 JP27371199A JP27371199A JP3384369B2 JP 3384369 B2 JP3384369 B2 JP 3384369B2 JP 27371199 A JP27371199 A JP 27371199A JP 27371199 A JP27371199 A JP 27371199A JP 3384369 B2 JP3384369 B2 JP 3384369B2
- Authority
- JP
- Japan
- Prior art keywords
- exchanges
- conversion device
- exchange
- medium conversion
- local area
- 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.)
- Expired - Lifetime
Links
Description
【０００１】[0001]
【発明の属する技術分野】本発明は交換機間通信方式お
よび通信方法ならびに媒体変換装置に関し、特に交換機
間接続のための制御情報の送受信を行う交換機間通信方
式および通信方法ならびに媒体変換装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inter-exchange communication system and communication method and a medium conversion device, and more particularly to an inter-exchange communication system and communication method and a medium conversion device for transmitting and receiving control information for connection between exchanges.
【０００２】[0002]
【従来の技術】従来、交換機間接続のための制御情報
は、デジタル専用線を用い構成される共通線信号網によ
り共通線信号方式を使用して、相互の局に設けられた共
通線信号装置を介し、交換機の中央制御装置（ＣＰＵ）
相互間で情報の送受信を行っている。あるいは、上述の
共通線信号網の代わりにＩＰ（Ｉｎｔｅｒｎｅｔ Ｐｒ
ｏｔｏｃｏｌ）ネットワークを利用して制御情報の送受
信を行っている。この場合、宛先をＩＰアドレスにより
指定して通信を行う。ただし、ＩＰアドレスだけでは通
信ができないので、ＩＰアドレスからＡＲＰ（Ａｄｄｒ
ｅｓｓ Ｒｅｓｏｌｕｔｉｏｎ Ｐｒｏｔｏｃｏｌ）プ
ロトコルなどを使用して、ＭＡＣ（Ｍｅｄｉａ Ａｃｃ
ｅｓｓ Ｃｏｎｔｒｏｌ）アドレスを求めてから通信を
行っている。2. Description of the Related Art Conventionally, control information for connection between exchanges uses a common line signaling system by a common line signaling network formed by using a digital leased line, and a common line signaling device provided in mutual stations. Through the central control unit (CPU) of the exchange
Information is exchanged between each other. Alternatively, instead of the common line signaling network described above, IP (Internet Pr
control information is transmitted / received using a network. In this case, the destination is designated by the IP address for communication. However, since it is not possible to communicate using only the IP address, ARP (Addr
By using the ess Resolution Protocol (ESS) protocol or the like, MAC (Media Acce
ess Control) The communication is performed after obtaining the address.
【０００３】[0003]
【発明が解決しようとする課題】上述した従来の技術で
は、前者の場合、各交換機に共通線信号装置を設備しな
くてはならず、また制御情報を転送するときも各交換機
のＣＰＵでのソフトウェア処理が必要である。したがっ
て、各交換機のＣＰＵはこのソフトウェア処理のため負
荷増となり、処理能力に悪影響を与えているという問題
がある。一方後者の場合、宛先のＩＰアドレスからＭＡ
Ｃアドレスを求めるためにＡＲＰプロトコルをサポート
したり、またダイナミックに変わるＩＰネットワークの
状況に応じてルーティング情報を更新するためにＲＩＰ
（Ｒｏｕｔｉｎｇ Ｉｎｆｏｒｍａｔｉｏｎ Ｐｒｏｔ
ｏｃｏｌ）などのダイナミックルーティングプロトコル
を実装する必要があった。このため、処理が複雑になる
とともにＩＰアドレスからＭＡＣアドレスを求めるまで
に時間がかかり、相互通信するのにも時間がかかってい
たという問題がある。In the above-mentioned prior art, in the former case, a common line signaling device must be installed in each exchange, and the CPU of each exchange must transfer the control information. Software processing is required. Therefore, there is a problem in that the CPU of each exchange increases the load due to this software processing, which adversely affects the processing capability. On the other hand, in the latter case, the MA from the destination IP address
RIP to support ARP protocol for C address and to update routing information according to dynamically changing IP network conditions
(Routing Information Prot
It was necessary to implement a dynamic routing protocol such as Ocol). Therefore, there is a problem that the process becomes complicated and it takes time to obtain the MAC address from the IP address, and it takes time for mutual communication.
【０００４】本発明の目的は、交換機のＣＰＵ処理能力
に影響を与えず、またＡＲＰ，ＲＩＰなどの複雑なプロ
トコルを実装することなしに交換機間の通信を可能にす
る交換機間通信方式および通信方法ならびに媒体変換装
置を提供することにある。An object of the present invention is to provide an inter-exchange communication system and a communication method that do not affect the CPU processing capability of the exchange and enable communication between exchanges without implementing a complicated protocol such as ARP or RIP. Another object is to provide a medium conversion device.
【０００５】[0005]
【課題を解決するための手段】本発明の交換機間通信方
式は、それぞれの交換機に交換機間接続のための制御情
報をローカルエリアネットワークを介して送受信する手
段と、対向する交換機に設けられローカルエリアネット
ワークとデジタル専用線との接続を行うためＬＡＮパケ
ットとＨＤＬＣ手順との媒体変換を行う媒体変換装置
と、交換機と前記媒体変換装置との間に設けられ前記媒
体変換装置の状態を監視するための情報を伝達する監視
通信路と、交換機に設けられ前記媒体変換装置のＭＡＣ
アドレスを前記監視通信路を介して求める手段および前
記媒体変換装置が故障の場合これを検出して当該の媒体
変換装置が選択されないようルーティング情報を更新す
る手段とを有する。A communication system between exchanges according to the present invention comprises means for transmitting and receiving control information for connection between exchanges to and from each exchange through a local area network, and a local area provided in an opposite exchange. A medium conversion device that performs medium conversion between a LAN packet and an HDLC procedure for connecting a network and a digital leased line, and for monitoring the state of the medium conversion device that is provided between the exchange and the medium conversion device. A monitoring communication path for transmitting information and a MAC of the medium conversion device provided in the exchange.
When the means for obtaining an address via the monitoring communication path and the medium conversion device have a failure, this is detected and the medium concerned is detected.
Means for updating the routing information so that the converter is not selected .
【０００６】[0006]
【０００７】また、本発明の交換機間通信方式は、交換
機に設けられ交換機間が直接ローカルエリアネットワー
クで接続されている場合、交換機間の通信状態を定期的
な周期確認パケットの送受信により確認し、一定間隔で
返信を受信できないときには交換機間の通信異常を検出
する手段を有する構成としてもよい。Further, the inter-exchange communication system of the present invention, when the exchanges are provided and the exchanges are directly connected to each other by a local area network, confirm the communication state between the exchanges by transmitting and receiving a periodic cycle confirmation packet, A configuration may be provided that has means for detecting a communication error between exchanges when replies cannot be received at regular intervals.
【０００８】本発明の交換機間通信方法は、交換機間接
続のための制御情報をローカルエリアネットワークを介
して送受信し、ローカルエリアネットワークとデジタル
専用線との接続を行うためＬＡＮパケットとＨＤＬＣ手
順との変換を媒体変換装置で行い、前記媒体変換装置の
ＭＡＣアドレスを交換機と前記媒体変換装置との間に設
けた監視通信路を介して求め、交換機によって前記媒体
変換装置が故障の場合これを検出して当該の媒体変換装
置が選択されないようルーティング情報を更新する構成
であり、交換機と前記媒体変換装置とが同一のルーティ
ング情報を使用してローカルエリアネットワーク上をル
ーティングする。The inter-switch communication method of the present invention transmits and receives control information for inter-switch connection via a local area network, and connects a LAN packet and an HDLC procedure for connecting the local area network and a digital leased line. The conversion is performed by the medium conversion device, the MAC address of the medium conversion device is obtained through a monitoring communication path provided between the exchange and the medium conversion device, and if the medium conversion device fails , the exchange detects it. The media conversion device
In the configuration, the routing information is updated so that the switch is not selected , and the exchange and the medium conversion device use the same routing information to perform routing on the local area network.
【０００９】また、本発明の交換機間通信方法は、交換
機間が直接ローカルエリアネットワークで接続されてい
る場合、交換機間の通信状態を定期的な周期確認パケッ
トの送受信により確認し、一定間隔で返信を受信できな
いときには交換機間の通信異常を検出する構成としても
よい。Further, according to the inter-exchange communication method of the present invention, when the exchanges are directly connected to each other via a local area network, the communication state between the exchanges is confirmed by sending and receiving a periodic cycle confirmation packet and returned at regular intervals. It may be configured to detect a communication abnormality between the exchanges when it is unable to receive.
【００１０】本発明によれば、ＬＡＮパケットの処理を
行う媒体変換装置に対してローカルエリアネットワーク
とは別の監視通信路を設け、この媒体変換装置のＭＡＣ
アドレスやこの装置の状態を把握することを可能にする
ことにより、共通線信号網を用いることなく、あるいは
ＡＲＰ，ＲＩＰなどの複雑なプロトコルを実装すること
なしに、ローカルエリアネットワークを利用し交換機間
接続のための制御情報の通信が可能になる。According to the present invention, a monitoring communication path different from the local area network is provided for the medium conversion device that processes LAN packets, and the MAC of this medium conversion device is provided.
By making it possible to grasp the address and the status of this device, it is possible to use a local area network to exchange between exchanges without using a common signaling network or implementing a complicated protocol such as ARP or RIP. Communication of control information for connection becomes possible.
【００１１】[0011]
【発明の実施の形態】次に、本発明の実施の形態につい
て図面を参照して説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings.
【００１２】図１を参照すると、あるエリアの設置され
た２つの交換機１，２およびＬＡＮ／デジタル専用線の
媒体変換を行う媒体変換装置３は、ＬＡＮパケットの接
続制御を行う接続制御装置４を有するローカルエリアネ
ットワーク（ＬＡＮ）５により直接接続されている。ま
た、他のエリアに設置されている交換機６および媒体変
換装置７は接続制御装置８を有するＬＡＮ９により直接
接続されている。交換機２は専用の監視通信路１０と接
続されており、媒体変換装置３の状態を監視している。
交換機６は専用の監視通信路１１と接続されており、媒
体変換装置７の状態を監視している。媒体変換装置３，
７間はデジタル専用線１２で接続されている。Referring to FIG. 1, two exchanges 1 and 2 installed in an area and a medium conversion device 3 for medium conversion of a LAN / digital leased line are connected to a connection control device 4 for controlling connection of LAN packets. It is directly connected by a local area network (LAN) 5 that it has. The exchange 6 and the medium conversion device 7 installed in other areas are directly connected by a LAN 9 having a connection control device 8. The exchange 2 is connected to a dedicated monitoring communication path 10 and monitors the state of the medium conversion device 3.
The exchange 6 is connected to a dedicated monitoring communication path 11 and monitors the state of the medium conversion device 7. Medium conversion device 3,
7 are connected by a digital dedicated line 12.
【００１３】このような接続形態で、交換機間接続のた
めの制御情報は、例えば、交換機２，６間で送受信する
場合、交換機２→ＬＡＮ５→媒体交換装置３→デジタル
専用線１２→媒体変換装置７→ＬＡＮ９→交換機６の経
路で情報が通信される。なお、上述したＬＡＮは、交換
機間接続のための制御情報のみを伝送するために設けた
もので、極めて小規模のものでよい。また交換機として
は構内交換機が適用される。In this connection mode, the control information for connection between exchanges is transmitted / received between the exchanges 2 and 6, for example, exchange 2 → LAN 5 → medium exchange 3 → digital private line 12 → media converter Information is communicated through a route of 7 → LAN 9 → switch 6. The above-mentioned LAN is provided only for transmitting control information for connection between exchanges, and may be a very small one. A private branch exchange is applied as the exchange.
【００１４】交換機はＣＰＵと、各種データの記憶およ
び交換機動作のためのプログラムを格納しておくための
メモリとを備え、図１（ａ）に例示された構成の場合、
交換機１はＣＰＵ１ａとメモリ１ｂ、交換機２はＣＰＵ
２ａとメモリ２ｂ、交換機６はＣＰＵ６ａとメモリ６ｂ
とをそれぞれ有する。例えば、交換機２に対応するＣＰ
Ｕ２ａは、交換機間接続のための制御情報をＬＡＮパケ
ットの形式でローカルエリアネットワーク５を介して送
受信する送受信処理部２１と、媒体変換装置３のＭＡＣ
アドレスを監視通信路１３を使用して求めるアドレス入
手部２２と、媒体変換装置３の状態変化を検出してルー
ティング情報を更新するルーティング更新部２３とを有
し、さらに、交換機間の通信状態を定期的な周期確認パ
ケットの送受信により確認し、一定間隔で返信を受信で
きないときには交換機間の通信異常を検出する通信異常
検出部２４を有する。なお、交換機１のＣＰＵ１ａ，交
換機６のＣＰＵ６ａの構成もＣＰＵ２ａと同様なので、
説明を省略する。The exchange has a CPU and a memory for storing programs for storing various data and operating the exchange. In the case of the configuration illustrated in FIG. 1A,
The exchange 1 has a CPU 1a and a memory 1b, and the exchange 2 has a CPU
2a and the memory 2b, the exchange 6 is the CPU 6a and the memory 6b
And have respectively. For example, the CP corresponding to the exchange 2
The U2a includes a transmission / reception processing unit 21 that transmits and receives control information for connection between exchanges in the form of a LAN packet via the local area network 5, and a MAC of the medium conversion device 3.
It has an address acquisition unit 22 that obtains an address using the monitoring communication path 13, and a routing updating unit 23 that detects a state change of the medium conversion device 3 and updates the routing information. The communication abnormality detecting unit 24 is provided for confirming transmission / reception of a periodic cycle confirmation packet and detecting a communication abnormality between exchanges when a reply cannot be received at regular intervals. The configurations of the CPU 1a of the exchange 1 and the CPU 6a of the exchange 6 are the same as that of the CPU 2a.
The description is omitted.
【００１５】監視通信路１０は、対向する交換機の数に
見合って多数設けられる媒体変換装置３と接続し、ＦＩ
ＦＯメモリ（図示せず）により構成され、媒体変換装置
３の状態を監視するため交換機２との間で通信を行う。
図１（ａ）では、多数設けられる媒体変換装置の内の一
つが示されている。The monitoring communication path 10 is connected to a large number of medium conversion devices 3 corresponding to the number of exchanges facing each other, and FI is connected.
It is composed of an FO memory (not shown) and communicates with the exchange 2 to monitor the state of the medium conversion device 3.
In FIG. 1A, one of a large number of medium converting devices is shown.
【００１６】媒体変換装置３は、ローカルエリアネット
ワーク５とデジタル専用線１２との接続を行うためＬＡ
ＮパケットとＨＤＬＣ手順との媒体変換を行うもので、
ローカルエリアネットワークとのＬＡＮパケットの送受
信を行う送受信処理部３１と、ローカルエリアネットワ
ークとの接続制御を行うＬＡＮ制御部３２と、受信した
呼情報を識別しＬＡＮパケット／ＨＤＬＣフォーマット
の相互変換を行う呼制御部３３と、ＨＤＬＣ手順のデジ
タル専用線との接続制御を行うＨＤＬＣ制御部３４と、
送受信データの一時蓄積および媒体変換のためのプログ
ラムを格納するメモリ３５と、装置全体の制御を行うＣ
ＰＵ３６とを備える。なお、媒体交換装置７の構成も上
述の媒体変換装置３と同様なので、説明を省略する。The medium conversion device 3 is an LA for connecting the local area network 5 and the digital leased line 12.
It performs medium conversion between N packets and HDLC procedure,
A transmission / reception processing unit 31 that transmits / receives LAN packets to / from a local area network, a LAN control unit 32 that controls connection to the local area network, and a call that identifies received call information and performs mutual conversion of LAN packet / HDLC format. A control unit 33, an HDLC control unit 34 for controlling connection with a digital dedicated line in the HDLC procedure,
A memory 35 that stores a program for temporarily storing transmission / reception data and medium conversion, and a C that controls the entire apparatus
And a PU 36. The configuration of the medium exchanging device 7 is also similar to that of the medium converting device 3 described above, and thus the description thereof is omitted.
【００１７】図１を参照して動作を説明する。交換機１
では、ローカルエリアネットワーク５で直接接続された
交換機２のＬＡＮ通信状態を一定周期の確認パケット
（ヘルスチェックパケット）により一定間隔で確認して
いる。もしも一定間隔の返信が返らない場合は交換機２
のＬＡＮ通信機能が停止したと判断し、ルーティング情
報を更新する。The operation will be described with reference to FIG. Exchange 1
Then, the LAN communication state of the exchange 2 directly connected by the local area network 5 is confirmed at regular intervals by a confirmation packet (health check packet) of a constant cycle. If you do not receive replies at regular intervals, switch 2
The LAN communication function is determined to have stopped, and the routing information is updated.
【００１８】ルーティング情報は、あらかじめ交換機に
設定されている局データをもとに、媒体変換装置のＭＡ
Ｃアドレス情報を交換機のなかのＣＰＵのデータベース
としてメモリに保持している。このデータ入力のための
保守端末の図示は省略してある。もしも、媒体変換装置
が故障した場合、該当の媒体変換装置が選択されないよ
うただちにルーティング情報が更新されて、このルーテ
ィング情報は同報パケットにより関係するＬＡＮ配下に
配信される。The routing information is based on the station data set in the exchange in advance, and is based on the MA of the medium conversion device.
The C address information is held in the memory as a database of the CPU in the exchange. Illustration of the maintenance terminal for data input is omitted. If the media conversion device fails, the routing information is immediately updated so that the corresponding media conversion device is not selected, and this routing information is distributed by the broadcast packet to the related LAN.
【００１９】同様に、交換機２では、ＬＡＮ５で直接接
続された交換機１のＬＡＮ通信状態を一定周期の確認パ
ケット（ヘルスチェックパケット）により一定間隔で確
認している。もしも一定間隔の返信が返らない場合は交
換機１のＬＡＮ通信機能が停止したと判断し、ルーティ
ング情報を更新する。Similarly, in the exchange 2, the LAN communication state of the exchange 1 directly connected to the LAN 5 is confirmed at regular intervals by a confirmation packet (health check packet) having a constant cycle. If no reply is returned within a certain interval, it is determined that the LAN communication function of the exchange 1 has stopped and the routing information is updated.
【００２０】さらに交換機２では、ＬＡＮ５自体の故障
を検出するために、媒体変換装置３との間でも一定周期
の確認パケット（ヘルスチェックパケット）で一定間隔
で確認している。もしも一定間隔の返信が返らない場合
は媒体変換装置３のＬＡＮ通信機能が停止したと判断
し、上述した故障の場合と同様にルーティング情報を更
新する。同様のことを交換機６および媒体変換装置７の
間でも行っている。Further, in the exchange 2, in order to detect the failure of the LAN 5 itself, confirmation is also made with the medium conversion device 3 at regular intervals by a confirmation packet (health check packet) having a constant cycle. If no reply is returned at regular intervals, it is determined that the LAN communication function of the medium conversion device 3 has stopped, and the routing information is updated as in the case of the above-mentioned failure. The same thing is performed between the exchange 6 and the medium conversion device 7.
【００２１】交換機２は、監視通信路１０を介して媒体
変換装置３のＭＡＣアドレスを直接読み出す。すなわ
ち、媒体変換装置に３に実装されているファームウェア
と交換機２のＣＰＵ２ａが通信してＭＡＣアドレスを読
み出す。これにより、ＣＰＵ２ａはＡＲＰやＲＩＰなど
のプロトコルを不要とすることができ、ＣＰＵに余計な
負荷をかけずに済む。交換機２では、対向する交換機が
通常複数あるので、この媒体変換装置もそれらに対応し
て設けられ、これら媒体変換装置１台１台に識別番号を
割り当てて、送信時にはどの媒体変換装置を使用するか
を指定する。The exchange 2 directly reads the MAC address of the medium conversion device 3 via the monitoring communication path 10. That is, the firmware installed in the medium conversion device 3 and the CPU 2a of the exchange 2 communicate with each other to read out the MAC address. As a result, the CPU 2a does not need a protocol such as ARP or RIP, and an unnecessary load is not applied to the CPU. Since the exchange 2 usually has a plurality of exchanges facing each other, this medium converting device is also provided corresponding to each of them, and each medium converting device is assigned an identification number and which medium converting device is used at the time of transmission. Is specified.
【００２２】上述したように、本発明によればＬＡＮを
介して、すなわちパケットに交換機間接続のための制御
情報を入れて、通信することにより、共通線信号方式に
比べ、より対応性に富んだ信号の送受信が可能であり、
またＭＡＣアドレスを得るためにＡＲＰやＲＩＰなどの
複雑なプロトコルを使用せずに済む。As described above, according to the present invention, by communicating via the LAN, that is, by inserting the control information for connection between the exchanges into the packet, the communication is more versatile than the common line signaling system. It is possible to send and receive
Further, it is not necessary to use a complicated protocol such as ARP or RIP to obtain the MAC address.
【００２３】[0023]
【発明の効果】以上説明したように本発明によれば、Ｌ
ＡＮパケットを処理する媒体変換装置に対してローカル
エリアネットワークとは別の監視通信路を設け、この媒
体変換装置のＭＡＣアドレスやこの装置の状態を把握す
ることを可能にすることにより、交換機の処理能力に影
響を与えず、且つＡＲＰやＲＩＰなどの複雑なプロトコ
ルを実装することなしにＬＡＮを利用して交換機間の通
信を行うことが可能になる。As described above, according to the present invention, L
By providing a monitoring communication path different from the local area network to the medium conversion device that processes the AN packet, and making it possible to grasp the MAC address of this medium conversion device and the state of this device, the processing of the exchange is performed. It becomes possible to perform communication between the exchanges using the LAN without affecting the capability and without implementing a complicated protocol such as ARP or RIP.
【図１】（ａ）は本発明の実施の形態を示すブロック図
である。（ｂ）は（ａ）における交換機のＣＰＵの内部
構成を示す図である。（ｃ）は（ａ）における媒体変換
装置の内部構成を示す図である。FIG. 1A is a block diagram showing an embodiment of the present invention. (B) is a figure which shows the internal structure of CPU of the exchange in (a). (C) is a figure which shows the internal structure of the medium conversion apparatus in (a).
１，２，６ 交換機 ３，７ 媒体変換装置 ４，８ 接続制御装置 ５，９ ＬＡＮ １０，１１ 監視通信路 １２ デジタル専用線 ２１，３１ 送受信処理部 ２２ アドレス入手部 ２３ ルーティング更新部 ２４ 通信異常検出部 ３２ ＬＡＮ制御部 ３３ 呼制御部 ３４ ＨＤＬＣ制御部 ３５，１ｂ，２ｂ，６ｂ メモリ ３６，１ａ，２ａ，６ａ ＣＰＵ 1,2,6 switch 3,7 Media conversion device 4,8 Connection control device 5,9 LAN 10, 11 Monitoring communication path 12 Digital dedicated line 21, 31 Transmission / reception processing unit 22 Address acquisition department 23 Routing Update Department 24 Communication error detector 32 LAN control unit 33 Call control unit 34 HDLC control unit 35, 1b, 2b, 6b memory 36,1a, 2a, 6a CPU
フロントページの続き (56)参考文献 特開 平10−210156（ＪＰ，Ａ) 特開 平３−96054（ＪＰ，Ａ) 特開 平４−23555（ＪＰ，Ａ) 特開 平４−208756（ＪＰ，Ａ) 特開 昭63−301643（ＪＰ，Ａ) 特開 平９−307859（ＪＰ，Ａ) 特開 平９−130429（ＪＰ，Ａ) 特開 平３−159341（ＪＰ，Ａ) 特開 平８−251218（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) H04L 12/46 H04L 12/26 H04M 7/06 Continuation of the front page (56) Reference JP-A-10-210156 (JP, A) JP-A-3-96054 (JP, A) JP-A-4-23555 (JP, A) JP-A-4-208756 (JP , A) JP 63-301643 (JP, A) JP 9-307859 (JP, A) JP 9-130429 (JP, A) JP 3-159341 (JP, A) JP 8-251218 (JP, A) (58) Fields investigated (Int.Cl. 7 , DB name) H04L 12/46 H04L 12/26 H04M 7/06
Claims (5)
の制御情報をローカルエリアネットワークを介して送受
信する手段と、対向する交換機に設けられローカルエリ
アネットワークとデジタル専用線との接続を行うためＬ
ＡＮパケットとＨＤＬＣ手順との媒体変換を行う媒体変
換装置と、交換機と前記媒体変換装置との間に設けられ
前記媒体変換装置の状態を監視するための情報を伝達す
る監視通信路と、交換機に設けられ前記媒体変換装置の
ＭＡＣアドレスを前記監視通信路を介して求める手段お
よび前記媒体変換装置が故障の場合これを検出して当該
の媒体変換装置が選択されないようルーティング情報を
更新する手段とを有することを特徴とする交換機間通信
方式。1. A means for transmitting / receiving control information for connection between exchanges to / from each exchange through a local area network, and L for connecting a local area network and a digital leased line provided in an opposite exchange.
A medium conversion device that performs medium conversion between an AN packet and an HDLC procedure, a monitoring communication path that is provided between the exchange and the medium conversion device, and that transmits information for monitoring the state of the medium conversion device, and the exchange. Means provided for obtaining the MAC address of the medium conversion device via the monitoring communication path, and detecting the failure of the medium conversion device
And a means for updating the routing information so that the medium conversion device of 1. will not be selected .
ルエリアネットワークで接続されている場合、交換機間
の通信状態を定期的な周期確認パケットの送受信により
確認し、一定間隔で返信を受信できないときには交換機
間の通信異常を検出する手段を有することを特徴とする
請求項１記載の交換機間通信方式。2. When the exchanges are provided in the exchanges and the exchanges are directly connected to each other via a local area network, the communication state between the exchanges is confirmed by sending and receiving periodical cycle check packets, and when the replies cannot be received at regular intervals, the exchanges are exchanged. 2. An inter-exchange communication system according to claim 1, further comprising means for detecting a communication abnormality between the exchanges.
ルエリアネットワークを介して送受信し、ローカルエリ
アネットワークとデジタル専用線との接続を行うためＬ
ＡＮパケットとＨＤＬＣ手順との変換を媒体変換装置で
行い、前記媒体変換装置のＭＡＣアドレスを交換機と前
記媒体変換装置との間に設けた監視通信路を介して求
め、交換機によって前記媒体変換装置が故障の場合これ
を検出して当該の媒体変換装置が選択されないようルー
ティング情報を更新することを特徴とする交換機間通信
方法。3. L for transmitting / receiving control information for connection between exchanges via a local area network and connecting the local area network with a digital leased line
The conversion of the AN packet and the HDLC procedure is performed by the medium conversion device, the MAC address of the medium conversion device is obtained through a monitoring communication path provided between the exchange and the medium conversion device, and the medium conversion device is operated by the exchange. In the case of a failure, the inter-switch communication method is characterized in that this is detected and the routing information is updated so that the medium conversion apparatus concerned is not selected.
ーティング情報を使用してローカルエリアネットワーク
上をルーティングすることを特徴とする請求項３記載の
交換機間通信方法。4. The inter-switch communication method according to claim 3, wherein the switch and the medium conversion device use the same routing information to perform routing on the local area network.
ークで接続されている場合、交換機間の通信状態を定期
的な周期確認パケットの送受信により確認し、一定間隔
で返信を受信できないときには交換機間の通信異常を検
出することを特徴とする請求項３記載の交換機間通信方
法。5. When the exchanges are directly connected to each other via a local area network, the communication state between the exchanges is confirmed by sending and receiving periodic cycle check packets, and when no reply can be received at regular intervals, a communication error between the exchanges. The inter-switch communication method according to claim 3, wherein
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27371199A JP3384369B2 (en) | 1999-09-28 | 1999-09-28 | Communication system and communication method between exchanges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27371199A JP3384369B2 (en) | 1999-09-28 | 1999-09-28 | Communication system and communication method between exchanges |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001103084A JP2001103084A (en) | 2001-04-13 |
| JP3384369B2 true JP3384369B2 (en) | 2003-03-10 |
Family
ID=17531503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27371199A Expired - Lifetime JP3384369B2 (en) | 1999-09-28 | 1999-09-28 | Communication system and communication method between exchanges |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3384369B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4554101B2 (en) * | 2001-02-28 | 2010-09-29 | 株式会社フジクラ | Media converter with local information transmission function and fault alarm signal transmission system |
| JP2010178275A (en) * | 2009-02-02 | 2010-08-12 | Toshiba Corp | Apparatus, method and program for relaying message |
-
1999
- 1999-09-28 JP JP27371199A patent/JP3384369B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001103084A (en) | 2001-04-13 |
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