JP5964239B2 - 分散ルーティングアーキテクチャ - Google Patents
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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
- H04L45/02—Topology update or discovery
- H04L45/04—Interdomain routing, e.g. hierarchical 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
- H04L45/30—Routing of multiclass traffic
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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
- H04L45/44—Distributed 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
- H04L45/58—Association of routers
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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
- H04L45/74—Address processing for routing
- H04L45/741—Routing in networks with a plurality of addressing schemes, e.g. with both IPv4 and IPv6
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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
- H04L45/74—Address processing for routing
- H04L45/745—Address table lookup; Address filtering
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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
- H04L47/33—Flow control; Congestion control using forward notification
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/22—Parsing or analysis of headers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
- H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
- H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
- H04L69/323—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the physical layer [OSI layer 1]
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Description
Claims (42)
- パケットをルーティングするためのシステムであって、
計算装置上で実行される、宛先アドレス情報をルータ階層に関連付けるためのルータ管理構成要素と、
ネットワークアドレス形式で表現された宛先アドレスに関連付けられたルーティング用の着信パケットを受信するための、前記ルータ階層の第1のレベルに対応する1つまたは複数の第1のルータ構成要素と、
前記1つまたは複数の第1のルータ構成要素のうち少なくとも1つから前記着信パケットを受信するための、前記ルータ階層の第2のレベルに対応する1つまたは複数の第2のルータ構成要素と、
前記1つまたは複数の第2のルータ構成要素のうち少なくとも1つから前記着信パケットを受信するための、前記ルータ階層の第3のレベルに対応する1つまたは複数の第3のルータ構成要素と、
を備え、
前記1つまたは複数の第1のルータ構成要素は、前記ネットワークアドレス形式の第1のサブセットに対応する前記宛先アドレスの第1のセクションに基づき、前記1つまたは複数の第2のルータ構成要素から、前記着信パケットがルーティングされる少なくとも1つの第2のルータ構成要素を識別し、前記宛先アドレスに対するルーティングの負担は、前記第1のセクションに関連付けられたトラフィック量に少なくとも部分的に基づき、前記ルータ管理構成要素により前記少なくとも1つの第2のルータ構成要素に割り振られ、
前記1つまたは複数の第2のルータ構成要素は、前記ネットワークアドレス形式の第2のサブセットに対応する前記宛先アドレスの第2のセクションに基づき、前記1つまたは複数の第3のルータ構成要素から、前記着信パケットがルーティングされる少なくとも1つの第3のルータ構成要素を識別し、前記宛先アドレスに対するルーティングの負担は、前記第2のセクションに関連付けられたトラフィック量に少なくとも部分的に基づき、前記ルータ管理構成要素により前記少なくとも1つの第3のルータ構成要素に割り振られ、前記第2のサブセットは前記第1のサブセットより大きい、
システム。 - 前記宛先アドレスは、前記ネットワークアドレス形式で表現可能な複数の宛先アドレスに含まれ、
前記ルータ管理構成要素は、前記複数の宛先アドレスの等しい部分に対するルーティングの負担を、前記1つまたは複数の第2のルータ構成要素の少なくとも2つの第2のルータ構成要素に割り振るように構成される、
請求項1に記載のシステム。 - 前記宛先アドレスは、前記ネットワークアドレス形式で表現可能な複数の宛先アドレスに含まれ、
前記ルータ管理構成要素は、前記割り振られた部分に起因するトラフィック量に基づき、前記複数の宛先アドレスの部分に対するルーティングの負担を、前記1つまたは複数の第2のルータ構成要素の個々の第2のルータ構成要素に割り振るように構成される、
請求項1に記載のシステム。 - 前記複数の第1のルータ構成要素のうちの少なくとも1つが、無作為抽出、ラウンドロビン選択、ハッシングおよび負荷分散のうち1つに従い選択される、
請求項1に記載のシステム。 - 前記ネットワークアドレス形式がIPアドレス形式に対応する、
請求項1に記載のシステム。 - 前記ネットワークアドレス形式の前記第1のサブセットが、前記IPアドレス形式の最上位8ビットに対応する、
請求項5に記載のシステム。 - 前記ネットワークアドレス形式の前記第2のサブセットが、前記IPアドレス形式の最上位16ビットまたは最上位24ビットのうち少なくとも1つに対応する、
請求項5に記載のシステム。 - 前記1つまたは複数の第1のルータ構成要素のうち少なくとも2つが、共用の物理ルータ構成要素内に実装される、
請求項1に記載のシステム。 - 前記1つまたは複数の第2のルータ構成要素のうち少なくとも2つが、共用の物理ルータ構成要素内に実装される、
請求項1に記載のシステム。 - 前記1つまたは複数の第3のルータ構成要素のうち少なくとも2つが、共用の物理ルータ構成要素内に実装される、
請求項1に記載のシステム。 - 少なくとも1つの物理ルータ構成要素が、前記1つまたは複数の第1のルータ構成要素のうちの1つの前記第1のルータ構成要素と、前記1つまたは複数の第2のルータ構成要素のうちの1つの前記第2のルータ構成要素と、前記1つまたは複数の第3のルータ構成要素のうちの1つの前記第3のルータ構成要素と、のうち少なくとも2つを実装する、
請求項1に記載のシステム。 - パケットをルーティングするためのシステムであって、
ネットワークアドレス形式で表現された宛先アドレスに関連付けられたルーティング用の着信パケットを受信するための論理ルータ構成要素の第1の組と、
前記論理ルータ構成要素の第1の組からの前記着信パケットの受信のための論理ルータ構成要素の第2の組と、
前記論理ルータ構成要素の第2の組からの前記着信パケットの受信のための論理ルータ構成要素の第3の組と、
を備え、
前記論理ルータ構成要素の第1の組は、前記ネットワークアドレス形式の第1のサブセットに対応する前記宛先アドレスの第1のセクションに基づき、前記論理ルータ構成要素の第2の組から、前記着信パケットがルーティングされる第2のルータ構成要素を識別し、
前記第1のセクションに対するルーティングの負担は、前記第1のセクションに関連付けられたトラフィック量に少なくとも部分的に基づき、ルータ管理構成要素により前記識別された第2のルータ構成要素に割り振られ、
前記論理ルータ構成要素の第2の組は、前記ネットワークアドレス形式の第2のサブセットに対応する前記宛先アドレスの第2のセクションに基づき、前記論理ルータ構成要素の第3の組から、前記着信パケットがルーティングされる第3のルータ構成要素を識別する、
パケットルーティングシステム。 - 前記宛先アドレスは、前記ネットワークアドレス形式で表現可能な複数の宛先アドレスに含まれ、
前記ルータ管理構成要素は、前記複数の宛先アドレスの等しい部分に対するルーティングの負担を、前記論理ルータ構成要素の第2の組の少なくとも2つの第2のルータ構成要素に割り振るように構成される、
請求項12に記載のシステム。 - 前記宛先アドレスは、前記ネットワークアドレス形式で表現可能な複数の宛先アドレスに含まれ、
前記ルータ管理構成要素は、割り振られた部分に対するトラフィック量の関連付けに基づき、前記複数の宛先アドレスの部分に対するルーティングの負担を、前記論理ルータ構成要素の第2の組の個々の第2のルータ構成要素に割り振るように構成される、
請求項12に記載のシステム。 - 前記宛先アドレスは、前記ネットワークアドレス形式で表現可能な複数の宛先アドレスに含まれ、
前記ルータ管理構成要素は、前記複数の宛先アドレスの少なくとも第1の部分に対するルーティングの負担を、前記第1の部分に起因するトラフィック量に基づき、前記論理ルータ構成要素の第2の組の少なくとも1つの第2のルータ構成要素に割り振るように構成され、
前記ルータ管理構成要素は、前記複数の宛先アドレスの少なくとも2つの追加の部分に対するルーティングの負担を、前記論理ルータ構成要素の第2の組の2つ以上の追加の第2のルータ構成要素に均等に割り振るように構成される、
請求項12に記載のシステム。 - 前記論理ルータ構成要素の第2の組から識別された前記第2のルータ構成要素は、アドレス情報が前記識別された第2のルータ構成要素の第1のメモリ内に維持できる宛先アドレスの量に関連付けられ、前記量より大きい量の宛先アドレスに対するルーティングの負担は、前記論理ルータ構成要素の第2の組から識別された前記第2のルータ構成要素に割り振られる、
請求項12に記載のシステム。 - 前記第1のセクションに対するルーティングの負担は、前記第1のセクションに対する低トラフィック量に基づき、前記識別された第2のルータ構成要素に割り振られる、
請求項12に記載のシステム。 - 前記第1のセクションに対するルーティングの負担は、前記論理ルータ構成要素の第2組からの少なくとも1つの追加の第2のルータ構成要素にもまた割り振られる、
請求項12に記載のシステム。 - 前記論理ルータ構成要素の第1の組が、無作為抽出、ラウンドロビン選択、ハッシュ選択および負荷分散のうち1つに従い選択される、
請求項12に記載のシステム。 - 前記ネットワークアドレス形式がIPアドレス形式に対応する、
請求項12に記載のシステム。 - 前記ネットワークアドレス形式の前記第1のサブセットが、前記IPアドレス形式の最上位8ビットに対応する、
請求項20に記載のシステム。 - 前記ネットワークアドレス形式の前記第2のサブセットが、前記IPアドレス形式の最上位16ビットまたは最上位24ビットのうち少なくとも1つに対応する、
請求項21に記載のシステム。 - 前記論理ルータ構成要素の第1の組のそれぞれが、物理ルータ構成要素に対応する、
請求項12に記載のシステム。 - 前記論理ルータ構成要素の第1の組の2つ以上が、単一の物理ルータ構成要素に対応する、
請求項12に記載のシステム。 - 前記論理ルータ構成要素の第2の組のそれぞれが、物理ルータ構成要素に対応する、
請求項12に記載のシステム。 - 前記論理ルータ構成要素の第2の組の2つ以上が、単一の物理ルータ構成要素に対応する、
請求項12に記載のシステム。 - 前記論理ルータ構成要素の第3の組のそれぞれが、物理ルータ構成要素に対応する、
請求項12に記載のシステム。 - 前記論理ルータ構成要素の第3の組の2つ以上が、単一の物理ルータ構成要素に対応する、
請求項12に記載のシステム。 - 前記論理ルータ構成要素の第1の組のうち少なくとも1つと、前記論理ルータ構成要素の第2の組のうち少なくとも1つと、前記論理ルータ構成要素の第3の組のうち少なくとも1つと、が、単一の物理ルータ構成要素に対応する、
請求項12に記載のシステム。 - パケットをルーティングするための方法であって、
第1の通信ネットワークから受信されたデータパケットであって、ネットワークアドレス形式で表現された宛先アドレスに関連付けられたデータパケットに対応するルーティング要求を取得するステップと、
ルータ階層の第1のレベルに対応する複数の第1のルータ構成要素から、前記データパケットがルーティングされる第1のルータ構成要素を識別するステップと、
前記データパケットを前記識別された第1のルータ構成要素へ転送するステップと、
前記ルータ階層の第2のレベルに対応する複数の第2のルータ構成要素から、前記データパケットがルーティングされる第2のルータ構成要素を識別するステップと、
前記受信されたデータパケットを前記識別された第2のルータ構成要素へ転送するステップと、
前記ルータ階層の第3のレベルに対応する複数の第3のルータ構成要素から、前記データパケットがルーティングされる第3のルータ構成要素を識別するステップと、
を含み、
前記第2のルータ構成要素を識別する前記ステップが、前記ネットワークアドレス形式の第1のサブセットに対応する前記宛先アドレスの第1のセクションに対するルーティングの負担を前記第2のルータ構成要素に割り振ることに基づき、前記第1のセクションに対するルーティングの負担は、前記第1のセクションに関連付けられたトラフィック量に少なくとも部分的に基づき、割り振られ、
前記第3のルータ構成要素を識別する前記ステップが、前記ネットワークアドレス形式の第2のサブセットに対応する前記宛先アドレスの第2のセクションに対するルーティングの負担を前記第3のルータ構成要素に割り振ることに基づく、
方法。 - 前記宛先アドレスは、前記ネットワークアドレス形式で表現可能な複数の宛先アドレスに含まれ、
前記複数の宛先アドレスの部分に対するルーティングの負担は、前記複数の第2のルータ構成要素の各々に割り振られる、
請求項30に記載の方法。 - 前記複数の宛先アドレスの等しい部分に対するルーティングの負担は、前記複数の第2のルータ構成要素の少なくとも2つの第2ルータ構成要素に割り振られる、
請求項31に記載の方法。 - 前記複数の宛先アドレスの部分に対するルーティングの負担は、前記複数の宛先アドレスの部分に対するトラフィック量の関連付けに基づき、前記複数の第2のルータ構成要素の各々に割り振られる、
請求項31に記載の方法。 - 前記複数の宛先アドレスの部分に対するルーティングの負担は、少なくとも1つの部分に関連付けられたトラフィック量と残りの部分の均等な割り振りとの組み合わせに基づき、前記複数の第2のルータ構成要素の各々に割り振られる、
請求項31に記載の方法。 - 前記複数の第2のルータ構成要素のそれぞれが、宛先アドレスの量に関連付けられ、
前記複数の宛先アドレスの部分に対するルーティングの負担の割り振りは、前記複数の第2のルータ構成要素のそれぞれに対する割り振りであって、前記量より大きい量の宛先アドレスの割り振りに基づく、
請求項31に記載の方法。 - 前記複数の宛先アドレスの部分に対するルーティングの負担は、前記複数の宛先アドレスの前記部分のための低トラフィック量に基づき、前記複数の第2のルータ構成要素の少なくとも1つに割り振られる、
請求項31に記載の方法。 - 前記複数の宛先アドレスの同一部分に対するルーティングの負担は、前記複数の第2のルータ構成要素の少なくとも2つに割り振られる、
請求項31に記載の方法。 - 前記ルータ構成要素の第1の組が、無作為抽出、ラウンドロビン選択、ハッシュ選択および負荷分散のうち1つに従い選択される、
請求項30に記載の方法。 - 前記ネットワークアドレス形式がIPアドレス形式に対応する、
請求項30に記載の方法。 - 前記複数の第1のルータ構成要素は、前記着信パケットがルーティング可能な前記複数の第2のルータ構成要素に接続され、前記複数の第2のルータ構成要素は、前記着信パケットがルーティング可能な前記複数の第3のルータ構成要素に接続される、
請求項1に記載のシステム。 - 前記複数の論理ルータ構成要素の第1の組は、前記着信パケットがルーティング可能な前記複数の論理ルータ構成要素の第2の組に接続され、前記複数の論理ルータ構成要素の第2の組は、前記着信パケットがルーティング可能な前記複数の論理ルータ構成要素の第3の組に接続される、
請求項12に記載のシステム。 - 前記複数の第1のルータ構成要素は、前記データパケットがルーティング可能な前記複数の第2のルータ構成要素に接続され、前記複数の第2のルータ構成要素は、前記データパケットがルーティング可能な前記複数の第3のルータ構成要素に接続される、
請求項30に記載の方法。
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WO2011084515A1 (en) | 2011-07-14 |
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