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다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0546619 (1990-06-29) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 310 인용 특허 : 0 |
A device and related method for coupling segments of an extended local area network (LAN) in such a way that message traffic employing inter-network protocols such as TCP/IP will be handled without the difficulties usually associated with bridges, and without the complexity and expense of full IP ro
A device and related method for coupling segments of an extended local area network (LAN) in such a way that message traffic employing inter-network protocols such as TCP/IP will be handled without the difficulties usually associated with bridges, and without the complexity and expense of full IP router capability. The device operates like a bridge for non-TCP/IP traffic. For TCP/IP traffic it operates in a bridge-like manner but maintains a database associating extended LAN segment addresses with port numbers in the device, so that packets can be automatically forwarded over a spanning tree connecting the network segments. A host computer in any network segment can address others in different network segments of the extended LAN as though all were in a single LAN. The device of the invention functions to block the flow of ARP messages and to generate ARP replies that render the device of the invention transparent to hosts within the extended LAN. The device is also transparent to true IP routers, which may still be used to effect communication with points outside the extended LAN.
For use in a configuration of interconnected local area networks (LANs) handling message traffic in accordance with a set of inter-network protocols that use a network addressing scheme, a bridge-like IP router (BLIP), comprising: multiple ports for attaching the BLIP to multiple segments of an exte
For use in a configuration of interconnected local area networks (LANs) handling message traffic in accordance with a set of inter-network protocols that use a network addressing scheme, a bridge-like IP router (BLIP), comprising: multiple ports for attaching the BLIP to multiple segments of an extended LAN; means for distinguishing received message traffic that uses the inter-network protocols from other message traffic that does not use the protocols; bridge means for processing the other message traffic exactly in the manner of a conventional bridge, using unique station addresses to determine how to forward the received message traffic; and bridge-like means for processing the inter-network protocol traffic in a manner analogous to a bridge, wherein a message packet received from an extended LAN segment attached to the BLIP is forwarded if necessary to at least one other extended LAN segment attached to the BLIP, using network addresses and network segment addresses, instead of unique station addresses, to determine how to forward the message traffic.
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