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    • 1. 发明公开
    • OPTIMIZING THE TRANSFER OF DATA PACKETS BETWEEN LANS
    • 优化网络间数据分组的传输
    • EP1086552A1
    • 2001-03-28
    • EP99927458.2
    • 1999-06-10
    • CABLETRON SYSTEMS, INC.
    • BAUMERT, Robert, J.SEAMAN, Anthony, W.STAVES, Sherre, M.
    • H04L12/28H04L12/56
    • H04L49/9047H04L49/3018H04L49/3027H04L49/351H04L49/90H04L49/901H04L49/9042H04L49/9057H04L49/9089
    • A switch apparatus (10) for optimizing the transfer of data packets between a plurality of local area networks (LANs (12, 14, 16)). Apparatus of the present invention are comprised of multiple controllers (23), e.g., a receive controller (24), and a transmit controller (25), which share common resources including a first memory (a packet memory (20)) which stores the data packets, a second memory (a descriptor memory (22)) which stores pointers to the stored data packets, and buffered data paths (preferably using FIFO buffers (178, 108)). The independent controllers (25, 24) operate essentially concurrently for most tasks while interleaving their use of the shared resources (20, 22). Consequently, embodiments of the present invention can simultaneously receive and transmit data across multiple LAN data ports (18a, 18b, 18N) (e.g., 28 Ethernet ports comprised of 10/100 and/or 10 Mbps ports).
    • 一种交换装置(10),用于优化多个局域网(LAN(12,14,16))之间的数据分组传输。 本发明的设备包括共享公共资源的多个控制器(23),例如接收控制器(24)和传输控制器(25),所述公共资源包括第一存储器(分组存储器(20)), 数据分组,存储指向所存储的数据分组的指针的第二存储器(描述符存储器(22))以及缓冲数据路径(优选地使用FIFO缓冲器(178,108))。 独立控制器(25,24)基本上同时操作大多数任务,同时交错使用共享资源(20,22)。 因此,本发明的实施例可以通过多个LAN数据端口(18a,18b,18N)(例如,由10/100和/或10Mbps端口组成的28个以太网端口)同时接收和发送数据。