JP3650337B2 - Server device - Google Patents

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JP3650337B2
JP3650337B2 JP2001025864A JP2001025864A JP3650337B2 JP 3650337 B2 JP3650337 B2 JP 3650337B2 JP 2001025864 A JP2001025864 A JP 2001025864A JP 2001025864 A JP2001025864 A JP 2001025864A JP 3650337 B2 JP3650337 B2 JP 3650337B2
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Japan
Prior art keywords
communication
communication band
congestion
user
minimum
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JP2002232474A (en
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直明 山中
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Nippon Telegraph and Telephone Corp
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Nippon Telegraph and Telephone Corp
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Description

【０００１】
【発明の属する技術分野】
本発明は、パケットまたはセルにより通信を行う通信網に利用する。本発明は、過剰な通信トラヒックで通信網が輻輳した場合の輻輳回避技術に関する。なお、本明細書では、パケットまたはセルその他のデータ伝送形態を全て含めたいい方として通信情報ということにする。
【０００２】
【従来の技術】
ユーザは通信帯域管理者（以下、キャリアという）との契約によって最低通信帯域は保障されるが、他のユーザが使用していなければ、それ以上の帯域を使用して通信を行うことができる。
【０００３】
しかし、一般的にキャリアは、設備投資を抑えるために、統計的手法を用いて各ユーザの最低通信帯域の合計が通信容量を超えてユーザを収容している場合が多い。したがって、多くのユーザが同時に通信帯域を使用すると、最低通信帯域で使用しても通信網が輻輳することになる。
【０００４】
従来、過剰なトラヒックによって通信網が輻輳すると、キャリアはユーザに告げることなく通信情報の廃棄を行ったり、あるいは、ユーザに輻輳を告げて使用の自粛を促す。
【０００５】
【発明が解決しようとする課題】
上記のような輻輳回避処置は、受動的に通信情報を廃棄したり、あるいは、ユーザの自粛に依存するといった消極的な処置であり、輻輳状態の早急な緩和を期待することは難しい。
【０００６】
また、上記のような輻輳回避処置が実行される回数は、実際には、一年間に数回ではあるが、これにより不利益を被ったユーザにとっては、キャリアのサービス品質が低いという印象が長期間残る結果となり、キャリアにとって好ましくない。
【０００７】
しかし、輻輳状態の早急な緩和を実現するためには、キャリアは、一年に数回しか発生しない輻輳を回避するために、余剰の設備を準備しなくてはならず、それらの設備は、通常、ほとんど使用されないため無駄になる。
【０００８】
本発明は、このような背景に行われたものであって、輻輳状態を早急に緩和するためにキャリアが過剰な設備投資を行うことを回避することができるとともに、ユーザは、通信コストの面で効率よく通信帯域を運用することができる通信帯域割当方法および通信処理装置およびサーバ装置を提供することを目的とする。
【０００９】
【課題を解決するための手段】
キャリアは、通信網が輻輳した場合には、契約した最低通信帯域よりもさらに低い通信帯域を使用するユーザを募集し、募集に応じたユーザに対しては通信料金を優遇することをあらかじめ周知しておき、実際に輻輳がおきた場合には、その旨をユーザに知らせ、通信帯域を低くするユーザを募集して、ユーザには、通信料金の優遇措置と引き替えに最低通信帯域をこれまで以下に縮小することにより輻輳を緩和する。
【００１０】
また、ユーザは、通信料金を減額してもらう替わりに、納得した上で、最低通信帯域をさらに低く縮小されるのであるから、ユーザがキャリアのサービス品質に疑問を抱くことはなく、ユーザに対するキャリアの印象が悪くなるといった事態を回避することができる。
【００１１】
すなわち、本発明の第一の観点は輻輳緩和方法であって、本発明の特徴とするところは、複数のユーザに最低通信帯域を保障してそれぞれ通信帯域を割当てるキャリアの通信網に輻輳が発生したときには、前記複数のユーザに対して前記最低通信帯域よりもさらに低い通信帯域を割当てることを通信料金の減額を条件に承諾するか否かを問い合わせ、前記複数のユーザのいずれかが前記さらに低い通信帯域を割当てることを承諾したときには、このユーザに保障する最低通信帯域を輻輳発生中は前記さらに低い通信帯域まで縮小させるところにある。
【００１２】
本発明の第二の観点は通信処理装置であって、本発明の特徴とするところは、複数のユーザに最低通信帯域を保障してそれぞれ通信帯域を割当てるキャリアの通信網に設けられ、この通信網の輻輳発生を検出したときには前記複数のユーザに宛て前記最低通信帯域よりもさらに低い通信帯域を割当てることを通信料金の減額を条件に承諾するか否かを問い合わせる通信情報を送出する手段と、前記問い合わせに対して回答する通信情報を受信する手段と、前記回答に承諾する旨の情報が含まれるときには当該回答を行ったユーザに保障する最低通信帯域を輻輳発生中は前記さらに低い通信帯域まで縮小させる手段とを備えたところにある。
【００１３】
本発明の第三の観点はサーバ装置であって、本発明の特徴とするところは、複数のユーザに最低通信帯域を保障してそれぞれ通信帯域を割当てるキャリアの通信網に設けられ、前記キャリアが前記複数のユーザに対し前記最低通信帯域よりもさらに低い通信帯域を割当てることを通信料金の減額を条件に承諾するか否かを問い合わせる掲示板の情報を配信する手段と、前記通信網の輻輳発生を検出したときにはこの掲示板に必要な区間、必要な帯域、減額率を書き込む手段と、この掲示板による問い合わせに対する回答を受け付ける手段と、この回答に承諾する旨の情報が含まれるときには当該回答を行ったユーザに保障する最低通信帯域を輻輳発生中は前記さらに低い通信帯域まで縮小させる手段とを備えたところにある。
【００１４】
これにより、輻輳状態を早急に緩和するためにキャリアが過剰な設備投資を行うことを回避することができるとともに、ユーザは、通信コストの面で効率よく通信帯域を運用することができる。
【００１５】
【発明の実施の形態】
本発明実施例の輻輳緩和方法および通信処理装置およびサーバ装置を図１ないし図７を参照して説明する。図１は本発明第一実施例の通信処理装置を説明するための全体構成図である。図２は本発明第一実施例の通信処理装置のブロック構成図である。図３はユーザの最低通信帯域を示す図である。図４は通信帯域が輻輳になった状態を示す図である。図５は本発明第二実施例のサーバ装置を説明するための全体構成図である。図６は本発明第二実施例のサーバ装置のブロック構成図である。図７は掲示板の表示例を示す図である。
【００１６】
本発明は、輻輳緩和方法であって、本発明の特徴とするところは、図１に示すように、複数のユーザＡ、Ｂ、Ｃに最低通信帯域を保障してそれぞれ通信帯域を割当てるキャリアの通信網１に輻輳が発生したときには、ユーザＡ、Ｂ、Ｃに対して前記最低通信帯域よりもさらに低い通信帯域を割当てることを通信料金の減額を条件に承諾するか否かを問い合わせ、ユーザＡ、Ｂ、Ｃのいずれかが前記さらに低い通信帯域を割当てることを承諾したときには、このユーザに保障する最低通信帯域を輻輳発生中は前記さらに低い通信帯域まで縮小させるところにある。
【００１７】
また、本発明は、通信処理装置２であって、本発明の特徴とするところは、図１および図２に示すように、複数のユーザＡ、Ｂ、Ｃに最低通信帯域を保障してそれぞれ通信帯域を割当てるキャリアの通信網１に設けられ、輻輳検出部１０がこの通信網１の輻輳発生を検出したときにはユーザＡ、Ｂ、Ｃに宛て前記最低通信帯域よりもさらに低い通信帯域を割当てることを通信料金の減額を条件に承諾するか否かを問い合わせる通信情報としての募集信号パケットを送出する募集信号パケット送出部１１と、前記問い合わせに対して回答する通信情報としての応募信号パケットを受信する応募信号パケット受信部１２と、前記回答に承諾する旨の情報が含まれるときには当該回答を行ったユーザに保障する最低通信帯域を輻輳発生中は前記さらに低い通信帯域まで縮小させる通信帯域制限部１３とを備えたところにある。
【００１８】
また、本発明は、サーバ装置２０であって、本発明の特徴とするところは、図５および図６に示すように、複数のユーザＡ、Ｂ、Ｃに最低通信帯域を保障してそれぞれ通信帯域を割当てるキャリアの通信網であるＩＰ(Internet Protocol)網３０に設けられ、前記キャリアがユーザＡ、Ｂ、Ｃに対し前記最低通信帯域よりもさらに低い通信帯域を割当てることを通信料金の減額を条件に承諾するか否かを問い合わせる掲示板２３の情報を配信する掲示板情報配信部２４と、輻輳検出部２１がＩＰ網３０の輻輳発生を検出したときにはこの掲示板２３に必要な区間、必要な帯域、減額率を書き込む掲示板書込部２２と、この掲示板２３による問い合わせに対する回答を受け付ける応募情報受信部２５と、この回答に承諾する旨の情報が含まれるときには当該回答を行ったユーザに保障する最低通信帯域を輻輳発生中は前記さらに低い通信帯域まで縮小させる通信帯域制限部２６とを備えたところにある。
【００１９】
以下では、本発明実施例をさらに詳細に説明する。
【００２０】
（第一実施例）
本発明第一実施例を図１ないし図４を参照して説明する。通信網１内の通信処理装置２の輻輳検出部１０が輻輳を検出すると、通信処理装置２の募集信号パケット送出部１１はユーザＡ、Ｂ、Ｃに対して、募集信号パケットを送って、最低通信帯域の縮小を募集する。例えば、募集信号パケットには、最低通信帯域よりさらに１０Ｍｂ／ｓ縮小したら１時間当り１００円の値下げを行うことを表示する。輻輳の度合いにより値引きの金額は変更する。ユーザは、通信網１からの募集信号パケットを受け取って、通信の重要度と値引き金額等で募集に応じるかどうかを決め、募集に応じる場合は、応答信号パケットを通信網１に送ると共に通信トラヒックを減らす。通信処理装置２では、通信帯域制限部１３が募集に応じたユーザの最低通信帯域の制限を行い、割当情報記録部１４が割当情報データベース１５を書き替えて通信帯域の再配分を行う。
【００２１】
図３はユーザＡ、Ｂ、Ｃの最低通信帯域（ＭＣＲ）を示す。図３（ａ）は契約における最低通信帯域であり、ユーザＡは、４０Ｍｂ／ｓ、ユーザＢは、３０Ｍｂ／ｓ、ユーザＣは、４０Ｍｂ／ｓを契約している。図４は通信帯域が輻輳になった状態を示す。ユーザＡ、Ｂ、Ｃがそれぞれの最低通信帯域ＭＣＲ−Ａ（４０Ｍｂ／ｓ）、ＭＣＲ−Ｂ（３０Ｍｂ／ｓ）、ＭＣＲ−Ｃ（４０Ｍｂ／ｓ）を使用した場合に、その区間の通信容量１００Ｍｂ／ｓを１０Ｍｂ／ｓ分超えて、輻輳状態にあることを示している。そこで、通信処理装置２は、ユーザＡ、Ｂ、Ｃに１０Ｍｂ／ｓの使用帯域の削減の募集信号パケットを送出し、ユーザＣがそれに応じたとすると、図３（ｂ）のようになり、通信容量内で通信が行われ、輻輳は緩和される。
（第二実施例）
本発明第二実施例を図５ないし図７を参照して説明する。第二実施例は、第一実施例における募集信号パケットを送出する代わりに、インターネットを用いて通信帯域の削減を募集する掲示板２３の情報を配信する。掲示板２３には、募集区間、募集通信帯域、応じた場合の通信料金の減算額（課金減算額）を表示し、ユーザからの応募を待つ。ＩＰ網３０の輻輳がひどくなると、募集区間や募集通信帯域が増え、課金減算額は増えることになる。ユーザは、掲示板２３を参照し、通信の重要度と値引き金額等で募集に応じるかどうかを決め、募集に応じる場合は、応答信号パケットをＩＰ網３０に送ると共に通信トラヒックを減らす。サーバ装置２０では、通信帯域制限部２６が募集に応じたユーザの最低通信帯域の制限を行い、割当情報記録部２７が割当情報データベース２８を書き替えて通信帯域の再配分を行う。
【００２２】
【発明の効果】
以上説明したように、本発明によれば、輻輳状態を早急に緩和するためにキャリアが過剰な設備投資を行うことを回避することができるとともに、ユーザは、通信コストの面で効率よく通信帯域を運用することができる。
【図面の簡単な説明】
【図１】本発明第一実施例の通信処理装置を説明するための全体構成図。
【図２】本発明第一実施例の通信処理装置のブロック構成図。
【図３】ユーザの最低通信帯域を示す図。
【図４】通信帯域が輻輳になった状態を示す図。
【図５】本発明第二実施例のサーバ装置を説明するための全体構成図。
【図６】本発明第二実施例のサーバ装置のブロック構成図。
【図７】掲示板の表示例を示す図。
【符号の説明】
１ 通信網
２ 通信処理装置
１０、２１ 輻輳検出部
１１ 募集信号パケット送出部
１２ 応募信号パケット受信部
１３、２６ 通信帯域制限部
１４、２７ 割当情報記録部
１５、２８ 割当情報データベース
２０ サーバ装置
２２ 掲示板書込部
２３ 掲示板
２４ 掲示板情報配信部
２５ 応募情報受信部
３０ ＩＰ網[0001]
BACKGROUND OF THE INVENTION
The present invention is used in a communication network that performs communication using packets or cells. The present invention relates to a congestion avoidance technique when a communication network is congested due to excessive communication traffic. In the present specification, communication information is referred to as a good way to include all data transmission forms such as packets, cells, and the like.
[0002]
[Prior art]
The user is guaranteed the minimum communication band by a contract with a communication band manager (hereinafter referred to as a carrier), but if other users are not using it, the user can communicate using a band higher than that.
[0003]
However, in general, in order to suppress capital investment, a carrier often uses a statistical method to accommodate users whose total communication bandwidth exceeds the communication capacity. Therefore, if many users use the communication band at the same time, the communication network will be congested even if it is used in the minimum communication band.
[0004]
Conventionally, when the communication network is congested due to excessive traffic, the carrier discards the communication information without notifying the user, or informs the user of congestion and encourages the user to stop using the communication information.
[0005]
[Problems to be solved by the invention]
The congestion avoiding measures as described above are passive measures such as passively discarding communication information or relying on the user's self-restraint, and it is difficult to expect rapid mitigation of the congestion state.
[0006]
In addition, the number of times the congestion avoidance measures as described above are actually executed several times a year, but for users suffering from this, the impression that the service quality of the carrier is low is long. This results in a period remaining, which is not favorable for the carrier.
[0007]
However, in order to achieve immediate mitigation of congestion, the carrier must prepare extra equipment to avoid congestion that only occurs several times a year, Usually it is wasted because it is rarely used.
[0008]
The present invention is made in such a background, and it is possible to avoid excessive capital investment by the carrier in order to quickly relieve the congestion state, and the user can reduce the communication cost. It is an object of the present invention to provide a communication band allocation method, a communication processing apparatus, and a server apparatus that can efficiently use a communication band.
[0009]
[Means for Solving the Problems]
In the event that the communication network is congested, the carrier recruits users who use a communication band that is lower than the contracted minimum communication band, and informs them in advance that communication charges will be given to users according to the recruitment. If congestion actually occurs, inform the user to that effect, solicit users to lower the communication bandwidth, and in exchange for the preferential measures for communication charges, To reduce congestion.
[0010]
In addition, instead of having the communication fee reduced, the user is convinced and the minimum communication bandwidth is further reduced, so the user does not have any doubt about the service quality of the carrier, and the carrier to the user It is possible to avoid a situation in which the impression of is worse.
[0011]
That is, the first aspect of the present invention is a congestion mitigation method. The feature of the present invention is that congestion occurs in a carrier communication network that guarantees a minimum communication band to a plurality of users and allocates a communication band to each user. When inquiring whether to accept to the plurality of users a communication bandwidth that is lower than the minimum communication bandwidth on the condition that the communication fee is reduced, any of the plurality of users is lower than the lower one. When it is agreed to allocate the communication band, the minimum communication band guaranteed to this user is reduced to the lower communication band during the occurrence of congestion.
[0012]
According to a second aspect of the present invention, there is provided a communication processing apparatus, which is characterized by being provided in a communication network of a carrier that guarantees a minimum communication band to a plurality of users and allocates a communication band, respectively. Means for sending communication information for inquiring whether or not to accept a reduction in communication charge to allocate a communication band lower than the lowest communication band to the plurality of users when the occurrence of network congestion is detected; Means for receiving communication information for replying to the inquiry, and when the answer includes information indicating acceptance, the minimum communication bandwidth guaranteed to the user who made the answer is reduced to the lower communication bandwidth during congestion occurrence. And a means for reducing the size.
[0013]
According to a third aspect of the present invention, there is provided a server apparatus, which is characterized by being provided in a communication network of a carrier that guarantees a minimum communication band to a plurality of users and allocates a communication band to each of the users. Means for distributing information on a bulletin board inquiring whether or not to approve a plurality of users to allocate a communication band lower than the minimum communication band on the condition of a reduction in communication charge; and occurrence of congestion in the communication network When detected, means for writing the necessary section, necessary bandwidth, reduction rate on this bulletin board, means for accepting an answer to the inquiry from this bulletin board, and the user who made the answer when the information to accept is included in this answer And means for reducing the minimum communication band guaranteed to the lower communication band during congestion.
[0014]
Accordingly, it is possible to avoid excessive capital investment by the carrier in order to quickly relieve the congestion state, and the user can efficiently operate the communication band in terms of communication cost.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
A congestion mitigation method, a communication processing apparatus, and a server apparatus according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is an overall configuration diagram for explaining a communication processing apparatus according to a first embodiment of the present invention. FIG. 2 is a block diagram of the communication processing apparatus according to the first embodiment of the present invention. FIG. 3 is a diagram showing the minimum communication bandwidth of the user. FIG. 4 is a diagram showing a state where the communication band is congested. FIG. 5 is an overall configuration diagram for explaining a server apparatus according to the second embodiment of the present invention. FIG. 6 is a block diagram of the server device according to the second embodiment of the present invention. FIG. 7 is a diagram showing a display example of a bulletin board.
[0016]
The present invention is a congestion mitigation method, and the feature of the present invention is that, as shown in FIG. 1, a plurality of users A, B, and C are guaranteed a minimum communication band and each carrier is assigned a communication band. When congestion occurs in the communication network 1, an inquiry is made as to whether or not the user A, B, or C is permitted to allocate a communication band lower than the minimum communication band on the condition that the communication fee is reduced. , B, or C agrees to allocate the lower communication band, the minimum communication band guaranteed to this user is reduced to the lower communication band when congestion occurs.
[0017]
In addition, the present invention is a communication processing apparatus 2, and the present invention is characterized by guaranteeing a minimum communication bandwidth to a plurality of users A, B, and C, as shown in FIGS. Provided in the communication network 1 of the carrier to which the communication band is allocated, and when the congestion detection unit 10 detects the occurrence of congestion in the communication network 1, a communication band lower than the minimum communication band is allocated to the users A, B, and C. A recruitment signal packet sending unit 11 for sending a recruitment signal packet as communication information for inquiring whether or not to accept a reduction in communication charge, and an application signal packet as communication information for replying to the inquiry When the application signal packet receiving unit 12 and information indicating acceptance are included in the answer, the minimum communication bandwidth guaranteed to the user who made the answer is further reduced during congestion. It is in place and a communication band limiting unit 13 to shrink to a low communication band.
[0018]
Further, the present invention is a server device 20, and the feature of the present invention is that a plurality of users A, B, and C are guaranteed to have a minimum communication bandwidth and communicate with each other as shown in FIGS. It is provided in an IP (Internet Protocol) network 30 which is a carrier communication network to which a bandwidth is allocated, and the carrier allocates a communication bandwidth lower than the minimum communication bandwidth to the users A, B and C. A bulletin board information distribution unit 24 that distributes information on the bulletin board 23 that inquires whether or not to accept the conditions, and a section necessary for the bulletin board 23, a necessary bandwidth, when the congestion detection unit 21 detects the occurrence of congestion in the IP network 30. When the bulletin board writing unit 22 for writing the reduction rate, the application information receiving unit 25 for receiving an answer to the inquiry from the bulletin board 23, and information indicating acceptance of the answer are included. A communication band limiting unit 26 is provided that reduces the minimum communication band guaranteed to the user who made the answer to the lower communication band during congestion.
[0019]
In the following, embodiments of the present invention will be described in more detail.
[0020]
(First Example)
A first embodiment of the present invention will be described with reference to FIGS. When the congestion detection unit 10 of the communication processing device 2 in the communication network 1 detects congestion, the recruitment signal packet sending unit 11 of the communication processing device 2 sends recruitment signal packets to the users A, B, and C. Recruitment of communication bandwidth reduction. For example, the solicitation signal packet displays that the price is reduced by 100 yen per hour when it is further reduced by 10 Mb / s from the minimum communication band. The amount of discount changes depending on the degree of congestion. The user receives the solicitation signal packet from the communication network 1 and decides whether or not to accept the solicitation based on the importance of communication and the discount amount, and if so, sends the response signal packet to the communication network 1 and communicates the communication traffic. Reduce. In the communication processing device 2, the communication band limiting unit 13 limits the minimum communication band of the user according to the recruitment, and the allocation information recording unit 14 rewrites the allocation information database 15 to reallocate the communication band.
[0021]
FIG. 3 shows the minimum communication band (MCR) of users A, B, and C. FIG. 3A shows the minimum communication band in the contract. User A contracts 40 Mb / s, user B contracts 30 Mb / s, and user C contracts 40 Mb / s. FIG. 4 shows a state where the communication band is congested. When users A, B, and C use their minimum communication bands MCR-A (40 Mb / s), MCR-B (30 Mb / s), and MCR-C (40 Mb / s), the communication capacity of that section is 100 Mb. This indicates that / s exceeds 10 Mb / s and is in a congested state. Therefore, the communication processing device 2 sends a solicitation signal packet for reducing the use bandwidth of 10 Mb / s to the users A, B, and C. If the user C responds accordingly, the communication processing device 2 becomes as shown in FIG. Communication is performed within the capacity, and congestion is reduced.
(Second embodiment)
A second embodiment of the present invention will be described with reference to FIGS. In the second embodiment, instead of sending the recruitment signal packet in the first embodiment, information on the bulletin board 23 that solicits the reduction of the communication band is distributed using the Internet. The bulletin board 23 displays the solicitation section, the solicited communication bandwidth, and the subtraction amount (billing subtraction amount) of the communication fee when responding, and waits for an application from the user. When the congestion of the IP network 30 becomes severe, the recruitment section and the recruitment communication bandwidth increase, and the charge subtraction amount increases. The user refers to the bulletin board 23 and decides whether or not to accept the recruitment based on the importance of communication and the discount amount, and if so, sends a response signal packet to the IP network 30 and reduces the communication traffic. In the server device 20, the communication band limiting unit 26 limits the minimum communication band of the user according to the recruitment, and the allocation information recording unit 27 rewrites the allocation information database 28 and reallocates the communication band.
[0022]
【The invention's effect】
As described above, according to the present invention, it is possible to avoid excessive capital investment by the carrier in order to quickly relieve the congestion state, and the user can efficiently communicate with the communication bandwidth. Can be operated.
[Brief description of the drawings]
FIG. 1 is an overall configuration diagram for explaining a communication processing apparatus according to a first embodiment of the present invention.
FIG. 2 is a block diagram of the communication processing apparatus according to the first embodiment of the present invention.
FIG. 3 is a diagram illustrating a minimum communication band of a user.
FIG. 4 is a diagram illustrating a state where a communication band is congested.
FIG. 5 is an overall configuration diagram for explaining a server device according to a second embodiment of the present invention;
FIG. 6 is a block diagram of a server device according to a second embodiment of the present invention.
FIG. 7 is a diagram showing a display example of a bulletin board.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Communication network 2 Communication processing apparatus 10, 21 Congestion detection part 11 Recruitment signal packet transmission part 12 Application signal packet reception part 13, 26 Communication band restriction part 14, 27 Assignment information recording part 15, 28 Assignment information database 20 Server apparatus 22 Bulletin board Writing section 23 Bulletin board 24 Bulletin board information distribution section 25 Application information receiving section 30 IP network

Claims (1)

複数のユーザに最低通信帯域を保障してそれぞれ通信帯域を割当てる通信帯域管理者の通信網に設けられ、
前記通信帯域管理者が前記複数のユーザに対し前記最低通信帯域よりもさらに低い通信帯域を割当てることを通信料金の減額を条件に承諾するか否かを問い合わせる掲示板の情報を配信する手段と、
前記通信網の輻輳発生を検出したときにはこの掲示板に必要な区間、必要な帯域、減額率を書き込む手段と、
この掲示板による問い合わせに対する回答を受け付ける手段と、この回答に承諾する旨の情報が含まれるときには当該回答を行ったユーザに保障する最低通信帯域を輻輳発生中は前記さらに低い通信帯域まで縮小させる手段と
を備えたことを特徴とするサーバ装置。Provided in a communication network of a communication band manager that guarantees a minimum communication band to a plurality of users and assigns each communication band ,
Means for delivering information on a bulletin board inquiring whether or not the communication band manager approves the reduction of the communication fee to allocate a communication band lower than the minimum communication band to the plurality of users;
Means for writing the necessary section, necessary bandwidth, reduction rate on this bulletin board when the occurrence of congestion in the communication network is detected;
Means for accepting an answer to the inquiry from the bulletin board, and means for reducing the minimum communication band guaranteed to the user who made the answer to the lower communication band during the occurrence of congestion when the answer contains information indicating acceptance
A server device comprising:
JP2001025864A 2001-02-01 2001-02-01 Server device Expired - Fee Related JP3650337B2 (en)

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