JP6240158B2 - ソフトウェア定義型ネットワーキングを用いたインラインサービスの連鎖化 - Google Patents
ソフトウェア定義型ネットワーキングを用いたインラインサービスの連鎖化 Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/38—Flow based routing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/302—Route determination based on requested QoS
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/302—Route determination based on requested QoS
- H04L45/306—Route determination based on the nature of the carried application
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
Description
Claims (25)
- スイッチングエレメントによりネットワークのパケットトラフィックを誘導するための方法であって、
パケットを受信することと、
アップストリーム又はダウンストリームである、受信された前記パケットが伝播している方向を判定することと、
受信された前記パケットをサービスセットに関連付けることと、
前記サービスセット内のどのサービスが前記パケットに適用されたかを判定することにより、関連付けられた前記サービスセット内の前記パケットの位置を判定することと、
判定された方向と前記パケットの位置とに従って、関連付けられた前記サービスセット内の次のサービスを選択することと、
選択された前記次のサービスに従って、前記パケットに新たな宛て先を割り当てることと、
を含む方法。 - 受信された前記パケットが伝播している前記方向は、前記パケットが受信された入口ポートに従って判定される、請求項1の方法。
- 受信された前記パケットを前記サービスセットに関連付けるステップは、受信された前記パケットに適用されるべきサービスの順序付きリストを割り当てることを含む、請求項1の方法。
- 受信された前記パケットは、判定された前記方向及び前記パケットの第1のヘッダフィールドに従って、前記サービスセットに関連付けられる、請求項1の方法。
- 前記第1のヘッダフィールドは、送信元アドレス、宛て先アドレス、送信元ポート、宛て先ポート及びプロトコルを含む群から選択される、請求項4の方法。
- 受信された前記パケットを前記サービスセットに関連付けるステップは、加入者に関連付けられるアドレスに従って、デフォルトのサービスを受信された前記パケットに割り当てることを含む、請求項1の方法。
- 前記加入者に関連付けられる前記アドレスは、判定された前記方向に従って、受信された前記パケットの送信元アドレス又は宛て先アドレスから選択される、請求項6の方法。
- 受信された前記パケットの第2のヘッダフィールドに従って、前記デフォルトのサービスセットを修正するステップをさらに含む、請求項6の方法。
- 前記第2のヘッダフィールドは、送信元アドレス、宛て先アドレス、送信元ポート、宛て先ポート及びプロトコルを含む群から選択される、請求項8の方法。
- 関連付けられた前記サービスセット内の前記パケットの前記位置は、前記パケットが受信された入口ポートに従って判定される、請求項1の方法。
- 受信された前記パケットに既に適用されたサービスを除去するために、判定された方向及び前記パケットの位置に従って、関連付けられた前記サービスセットを修正するステップをさらに含む、請求項1の方法。
- 前記パケットに新たな宛て先を割り当てるステップは、前記パケットの宛て先アドレスを書き換えることを含む、請求項1の方法。
- 割り当てられた前記新たな宛て先に前記パケットを転送するステップをさらに含む、請求項1の方法。
- 転送する前記ステップは、割り当てられた前記新たな宛て先アドレスに関連付けられるポートを選択することと、選択された前記ポート上で前記パケットを送信することと、を含む、請求項13の方法。
- 各々がネットワークのパケットトラフィックを受信及び送信するための複数のポートと、
前記複数のポートに動作可能に接続されるプロセッサであって、アップストリーム又はダウンストリームである第1のポートで受信されたパケットが伝播している方向を判定し、前記パケットをサービスセットに関連付け、前記サービスセット内のどのサービスが前記パケットに適用されたかを判定することにより、関連付けられた前記サービスセット上の受信された前記パケットの位置を検出し、判定された前記方向と検出された前記位置とに従って、関連付けられた前記サービスセット上の次のサービスを判定し、前記複数のポートから第2のポートを選択し、及び選択された前記第2のポート上で、判定された前記次のサービスに前記パケットを送信するための前記プロセッサと、
を含むスイッチ。 - 選択された前記第2のポートは、判定された前記次のサービスに関連付けられる、請求項15のスイッチ。
- 複数のポートは、サービスノードからダウンストリームに伝播するパケットを受信するための及びサービスノードに対しアップストリームに伝播するパケットを送信するためのアップストリーム対向ポートと、サービスノードからアップストリームに伝播するパケットを受信するための及びサービスノードに対しダウンストリームに伝播するパケットを送信するためのダウンストリーム対向ポートと、を含む、請求項15のスイッチ。
- 前記プロセッサは、受信された前記パケットが伝播している前記方向を、前記第1のポートに従って判定するように構成される、請求項15のスイッチ。
- 前記プロセッサは、判定された前記方向及び受信された前記パケットの第1のヘッダフィールドに従って、受信された前記パケットを前記サービスセットに関連付ける、請求項18のスイッチ。
- 前記プロセッサは、加入者に関連付けられたアドレスに従って、デフォルトのサービスセットを受信された前記パケットに割り当てるように構成される、請求項15のスイッチ。
- 前記加入者に関連付けられた前記アドレスは、受信された前記パケットの送信元アドレス又は宛て先アドレスのうちの1つである、請求項20のスイッチ。
- 前記プロセッサは、受信された前記パケットの第2のヘッダフィールドに従って、前記デフォルトのサービスセットを修正するように構成される、請求項20のスイッチ。
- 前記プロセッサは、前記第1のポートに従って、関連付けられた前記サービスセット上の受信された前記パケットの前記位置を判定するように構成される、請求項15のスイッチ。
- 前記プロセッサは、判定された前記次のサービスに従って、受信された前記パケットに新たな宛て先を割り当てるように構成される、請求項15のスイッチ。
- 関連付けられた方向を有しないパケットを受信するためのトランジットポートをさらに含み、
前記プロセッサは、専らその宛て先アドレスに従って、関連付けられた方向を有しない前記パケットを転送する、請求項15のスイッチ。
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US13/556,456 US10097452B2 (en) | 2012-04-16 | 2012-07-24 | Chaining of inline services using software defined networking |
PCT/IB2013/053017 WO2013156931A1 (en) | 2012-04-16 | 2013-04-16 | Chaining of inline services using software defined networking |
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JP2015517272A JP2015517272A (ja) | 2015-06-18 |
JP6240158B2 true JP6240158B2 (ja) | 2017-11-29 |
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AU (1) | AU2013250796B2 (ja) |
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