KR101539211B1 - 계층적으로 구조화된 가변―길이 식별자를 갖는 패킷을 전송하기 위한 시스템 - Google Patents
계층적으로 구조화된 가변―길이 식별자를 갖는 패킷을 전송하기 위한 시스템 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
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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
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- 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
- H04L67/00—Network arrangements or protocols for supporting network services or applications
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Abstract
Description
도 2는 일 실시예에 따라 HSVLI을 갖는 패킷을 전송하기 위한 시스템의 아키텍처를 도시한 도면.
도 3은 일 실시예에 따라 HSVLI을 갖는 패킷을 전송하는 프로세스 도시한 흐름도.
도 4는 일 실시예에 따라 HSVLI을 고정-길이 키로 변환하는 프로세스를 도시한 흐름도.
도 5는 실시예에 따라, 몇 개의 서로 다른 고정-길이 키들로 변환된 HSVLI를 도시한 도면.
도 6은 실시예에 따라 HSVLI를 갖는 패킷을 전송하기 위한 장치를 도시한 도면.
100, 105, 110, 115, 120, 125, 130, 135, 140, 145: 노드
210: 패킷 220: 패킷 수신기
240: 변환기 260: 전송-정보 획득기
280: 패킷 전송기 610: 프로세서
620: 메모리 630: 저장장치
640: 패킷-수신 메커니즘 650: HSVLI 변환 메커니즘
660: 전송-정보 획득 메커니즘 670: 패킷-전송 메커니즘
675: 키보드 680: 포인팅 디바이스
685: 디스플레이 690: 콘텐트-중심적인 네트워크
970: 포인팅 디바이스
Claims (24)
- 계층적으로 구조화된 가변-길이 식별자(HSVLI)를 갖는 패킷을 컴퓨터의 입력 포트 상에서 수신하는 단계로서, 상기 HSVLI는 한 조각(piece)의 콘텐트를 나타내고, 계층적으로 구조화될 수 있고, 가장 일반적 레벨부터 가장 특정한 레벨까지 순서화된 연속적인 구성요소들을 포함하고, 각각의 식별자의 길이는 고정되지 않은, 상기 패킷 수신 단계;
상기 HSVLI를 고정-길이 키로 변환하는 단계;
상기 고정-길이 키를 사용하는 최장-프리픽스-매치 룩업 엔진(longest-prefix-match lookup engine)으로 하나 이상의 최장-프리픽스-매치들에 기초하여 전송 정보를 획득하는 단계; 및
상기 전송 정보에 기초하여 상기 패킷을 출력 포트에 전송하는 단계를 포함하는 방법. - 제 1 항에 있어서,
상기 HSVLI를 상기 고정-길이 키로 변환하는 단계는:
상기 고정-길이 키를 c 세그먼트들(s1,...,sc)로 분할하는 단계;
상기 HSVLI의 제 1의 c-1 구성요소들에 대한 구성요소 해시들을 세그먼트들(s1,...,sc-1)로 나타내는 단계; 및
상기 HSVLI의 나머지 구성요소들에 대한 해시를 세그먼트(sc)로 나타내는 단계를 포함하는, 방법. - 제 2 항에 있어서,
상기 c 세그먼트들의 길이들은 동일하지 않고, 각각의 세그먼트의 길이는 동적으로 재구성될 수 있는, 방법. - 제 2 항에 있어서,
상기 HSVLI의 초기 구성요소들 중 적어도 하나 이상에 기초하여, 상기 c 세그먼트들의 길이, 각 세그먼트에 해시(hash)된 HSVLI 구성요소들의 수, 및 상기 고정-길이 키에 산술적으로 결합될 값 중 적어도 하나를 동적으로 결정하는 단계를 더 포함하는, 방법. - 제 1 항에 있어서,
상기 최장-프리픽스-매치 룩업 엔진은 인터넷 프로토콜(IP) 라우터인, 방법. - 제 1 항에 있어서,
상기 고정-길이 키는 인터넷 프로토콜 버전 4(IPv4) 또는 인터넷 프로토콜 버전 6(IPv6) 어드레스 포맷을 갖는, 방법. - 제 1 항에 있어서,
상기 전송 정보는 적어도 하나의 출력 포트를 포함하는, 방법. - 제 1 항에 있어서,
상기 계층 구조 내의 구성요소는:
글로벌적으로 라우팅가능한 명칭;
조직적 명칭;
버전 식별자; 및
다이제스트 중 하나 이상을 포함하는, 방법. - 계층적으로 구조화된 가변-길이 식별자(HSVLI)를 갖는 패킷을 컴퓨터의 입력 포트 상에서 수신하도록 구성된 수신 메커니즘으로서, 상기 HSVLI는 한 조각의 콘텐트를 나타내고, 계층적으로 구조화될 수 있고, 가장 일반적 레벨부터 가장 특정한 레벨까지 순서화된 연속적인 구성요소들을 포함하고, 각각의 식별자의 길이는 고정되지 않은, 상기 수신 메커니즘;
상기 HSVLI를 고정-길이 키로 변환하도록 구성된 변환 메커니즘;
상기 고정-길이 키를 사용하는 최장-프리픽스-매치 룩업 엔진으로 하나 이상의 최장-프리픽스-매치들에 기초하여 전송 정보를 획득하도록 구성된 전송 정보 획득 메커니즘; 및
상기 전송 정보에 기초하여 상기 패킷을 출력 포트에 전송하도록 구성된 패킷 전송 메커니즘을 포함하는 장치. - 제 9 항에 있어서,
상기 HSVLI를 고정-길이 키로 변환하는 동안, 상기 변환 메커니즘은:
상기 고정-길이 키를 c 세그먼트들(s1,...,sc)로 분할하고;
상기 HSVLI의 제 1의 c-1 구성요소들에 대한 구성요소 해시들을 세그먼트들(s1,...,sc-1)로 나타내고;
상기 HSVLI의 나머지 구성요소들에 대한 해시를 세그먼트(sc)로 나타내도록 구성되는, 장치. - 제 10 항에 있어서,
상기 c 세그먼트들의 길이들은 동일하지 않고, 각각의 세그먼트의 길이는 동적으로 재구성될 수 있는, 장치. - 제 10 항에 있어서,
상기 변환 메커니즘은 또한 상기 HSVLI의 초기 구성요소들 중 적어도 하나 이상에 기초하여, 상기 c 세그먼트들의 길이, 각 세그먼트에 해시된 HSVLI 구성요소들의 수, 및 상기 고정-길이 키에 산술적으로 결합될 값 중 적어도 하나를 동적으로 결정하도록 구성되는, 장치. - 제 9 항에 있어서,
상기 최장-프리픽스-매치 룩업 엔진은 인터넷 프로토콜(IP) 라우터인, 장치. - 제 9 항에 있어서,
상기 고정-길이 키는 인터넷 프로토콜 버전 4(IPv4) 또는 인터넷 프로토콜 버전 6(IPv6) 어드레스 포맷을 갖는, 장치. - 제 9 항에 있어서,
상기 전송 정보는 적어도 하나의 출력 포트를 포함하는, 장치. - 제 9 항에 있어서,
상기 계층 구조 내의 구성요소는:
글로벌적으로 라우팅가능한 명칭;
조직적 명칭;
버전 식별자; 및
다이제스트 중 하나 이상을 포함하는, 장치. - 컴퓨터에 의한 실행시, 컴퓨터로 하여금,
계층적으로 구조화된 가변-길이 식별자(HSVLI)를 갖는 패킷을 컴퓨터의 입력 포트 상에서 수신하는 것으로서, 상기 HSVLI는 한 조각의 콘텐트를 나타내고, 계층적으로 구조화될 수 있고, 가장 일반적 레벨부터 가장 특정한 레벨까지 순서화된 연속적인 구성요소들을 포함하고, 각각의 식별자의 길이는 고정되지 않은, 상기 수신하는 것;
상기 HSVLI를 고정-길이 키로 변환하는 것;
상기 고정-길이 키를 사용하는 최장-프리픽스-매치 룩업 엔진으로 하나 이상의 최장-프리픽스-매치들에 기초하여 전송 정보를 획득하는 것; 및
상기 전송 정보에 기초하여 상기 패킷을 출력 포트에 전송하는 것을 수행하게 하는 명령들을 저장하는 컴퓨터-판독가능한 저장 장치. - 제 17 항에 있어서,
상기 HSVLI를 상기 고정-길이 키로 변환하는 것은:
상기 고정-길이 키를 c 세그먼트들(s1,...,sc)로 분할하는 것;
상기 HSVLI의 제 1의 c-1 구성요소들에 대한 구성요소 해시들을 세그먼트들(s1,...,sc-1)로 나타내는 것; 및
상기 HSVLI의 나머지 구성요소들에 대한 해시를 세그먼트(sc)로 나타내는 것을 포함하는, 컴퓨터-판독가능한 저장 장치. - 제 18 항에 있어서,
상기 c 세그먼트들의 길이들은 동일하지 않고, 각각의 세그먼트의 길이는 동적으로 재구성될 수 있는, 컴퓨터-판독가능한 저장 장치. - 제 18 항에 있어서,
상기 HSVLI의 초기 구성요소들 중 적어도 하나 이상에 기초하여, 상기 c 세그먼트들의 길이, 각 세그먼트에 해시된 HSVLI 구성요소들의 수, 및 상기 고정-길이 키에 산술적으로 결합될 값 중 적어도 하나를 동적으로 결정하는 것을 더 포함하는, 컴퓨터-판독가능한 저장 장치. - 제 17 항에 있어서,
상기 최장-프리픽스-매치 룩업 엔진은 인터넷 프로토콜(IP) 라우터인, 컴퓨터-판독가능한 저장 장치. - 제 17 항에 있어서,
상기 고정-길이 키는 인터넷 프로토콜 버전 4(IPv4) 또는 인터넷 프로토콜 버전 6(IPv6) 어드레스 포맷을 갖는, 컴퓨터-판독가능한 저장 장치. - 제 17 항에 있어서,
상기 전송 정보는 적어도 하나의 출력 포트를 포함하는, 컴퓨터-판독가능한 저장 장치. - 제 17 항에 있어서,
상기 계층 구조 내의 구성요소는:
글로벌적으로 라우팅가능한 명칭;
조직적 명칭;
버전 식별자; 및
다이제스트 중 하나 이상을 포함하는, 컴퓨터-판독가능한 저장 장치.
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US12/565,005 US8160069B2 (en) | 2009-01-30 | 2009-09-23 | System for forwarding a packet with a hierarchically structured variable-length identifier |
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US20100195654A1 (en) * | 2009-01-30 | 2010-08-05 | Palo Alto Research Center Incorporated | System for forwarding packets with hierarchically structured variable-length identifiers using an exact-match lookup engine |
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EP2214356A1 (en) | 2010-08-04 |
CN101795229B (zh) | 2014-10-29 |
CN101795229A (zh) | 2010-08-04 |
EP2214356B1 (en) | 2016-05-25 |
KR20100088561A (ko) | 2010-08-09 |
US8160069B2 (en) | 2012-04-17 |
JP5525273B2 (ja) | 2014-06-18 |
US20100195653A1 (en) | 2010-08-05 |
JP2010178342A (ja) | 2010-08-12 |
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