External memory management in a network device
    1.
    发明授权
    External memory management in a network device 有权
    网络设备中的外部存储器管理

    公开(公告)号:US09063841B1

    公开(公告)日:2015-06-23

    申请号:US13563497

    申请日:2012-07-31

    IPC分类号: G06F12/02 G06F13/16 G06F3/06

    摘要: In a method for storing packets in a network device, a memory space spanning a plurality of external memory devices is partitioned into a plurality of multi-buffers. Each multi-buffer spans multiple memory devices in the plurality of external memory devices. Each multi-buffer is partitioned into a plurality of buffer chunks and the plurality of buffer chunks are distributed among the multiple memory devices Further, a packet is divided into one or more packet chunks including at least a first packet chunk. The one or more packet chunks are stored in one or more consecutive buffer chunks of at least a first multi-buffer of the plurality of multi-buffers.

    摘要翻译: 在用于在网络设备中存储分组的方法中,跨越多个外部存储器设备的存储器空间被分割成多个多缓冲器。 每个多缓冲器跨越多个外部存储器设备中的多个存储器设备。 每个多缓冲器被分割成多个缓冲块,并且多个缓冲块在多个存储器件之间被分配。另外,一个分组被划分成至少包括第一个分组块的一个或多个分组块。 一个或多个分组块存储在多个多缓冲器中的至少第一多缓冲器的一个或多个连续的缓冲块中。

    IP multicast forwarding in MAC bridges
    2.
    发明授权
    IP multicast forwarding in MAC bridges 有权
    MAC组播转发MAC桥

    公开(公告)号:US07933268B1

    公开(公告)日:2011-04-26

    申请号:US11376428

    申请日:2006-03-14

    IPC分类号: H04L12/28 H04L12/56

    摘要: The invention provides novel methods of forwarding multicast data packets to selected egress ports in a MAC bridging environment. A multicast data packet is received via an ingress port. A source IP address and a destination multicast IP address are retrieved from the multicast packet. In a forwarding database, different groups of egress ports correspond to different combinations of a source address, a destination multicast address, and a virtual local area network identifier (VLAN-ID). The forwarding database is accessed, based on the retrieved source address, the retrieved destination multicast address, and a VLAN-ID, to thereby determine a corresponding group of egress ports. The multicast packet is then forwarded to the corresponding group of egress ports.

    摘要翻译: 本发明提供了将组播数据分组转发到MAC桥接环境中的选定出口端口的新颖方法。 通过入口接收多播数据包。 从组播数据包中检索源IP地址和目的地组播IP地址。 在转发数据库中,不同的出口端口组对应于源地址,目的组播地址和虚拟局域网标识符(VLAN-ID)的不同组合。 基于检索的源地址,检索到的目的地多播地址和VLAN-ID访问转发数据库,​​从而确定相应的出口端口组。 然后将组播数据包转发到相应的出口端口组。