Content-based forwarding of network traffic
    31.
    发明授权
    Content-based forwarding of network traffic 有权
    基于内容的网络流量转发

    公开(公告)号:US08879563B2

    公开(公告)日:2014-11-04

    申请号:US13370357

    申请日:2012-02-10

    摘要: A method includes reading content of network traffic that arrives at a network port of a network switch of a mesh of network switches. A hash algorithm is applied to the read content to indicate a path to a destination network switch of the mesh, the hash algorithm being common to all network switches of the mesh. The network traffic is forwarded via a network port that is associated with the indicated path.

    摘要翻译: 一种方法包括读取到达网络交换机网格的网络交换机的网络端口的网络流量的内容。 散列算法应用于读取的内容以指示到网格的目的地网络交换机的路径,该散列算法对于网格的所有网络交换机是共同的。 通过与所指示的路径相关联的网络端口转发网络流量。

    Packet mirroring
    32.
    发明授权
    Packet mirroring 有权
    数据包镜像

    公开(公告)号:US08054833B2

    公开(公告)日:2011-11-08

    申请号:US11810368

    申请日:2007-06-05

    IPC分类号: H04L12/28

    CPC分类号: H04L12/4641

    摘要: Network devices, systems, and methods are provided for packet processing. One network device includes a network chip including logic and a number of network ports for the device for receiving and transmitting packets therefrom. The logic is operable to mirror packets on a per port per virtual local area network (VLAN) membership basis.

    摘要翻译: 提供网络设备,系统和方法用于数据包处理。 一个网络设备包括网络芯片,其包括用于从其接收和发送分组的设备的逻辑和多个网络端口。 该逻辑可用于在每个虚拟局域网(VLAN)成员资格的每个端口上镜像数据包。

    Content addressable memory
    33.
    发明授权
    Content addressable memory 有权
    内容可寻址内存

    公开(公告)号:US07852653B2

    公开(公告)日:2010-12-14

    申请号:US11810124

    申请日:2007-06-04

    IPC分类号: G11C15/00

    CPC分类号: G11C15/00 G06F7/74

    摘要: Systems, devices, and methods, including executable instructions are provided for content addressable memory (CAM). One method includes defining the CAM into an array of data words having M rows and N columns, with each of N and M being greater than one. The data words of the CAM are arranged according to a 2-dimensional priority scheme. Data words outside a selected 1×M column are masked to be ignored in determining a match, and the CAM is searched. Each search includes N compare cycles and each compare cycle having a different 1×M column selected. A highest priority match per compare cycle is pipelined from a priority encoder with the pipelined matches arranged to communicate a priority order in a first dimension of the 2-dimensional priority scheme.

    摘要翻译: 为内容可寻址存储器(CAM)提供系统,设备和方法,包括可执行指令。 一种方法包括将CAM定义为具有M行和N列的数据字阵列,其中N和M中的每一个大于1。 CAM的数据字根据二维优先级方案进行排列。 选定的1×M列之外的数据字在确定匹配时被屏蔽以被忽略,并且搜索CAM。 每个搜索包括N个比较周期,并且每个比较周期选择不同的1×M列。 每个比较周期的最高优先级匹配从优先编码器流水线化,其中流水线匹配被布置为在二维优先级方案的第一维度中传送优先级顺序。

    Data corruption scrubbing for content addressable memory and ternary content addressable memory
    34.
    发明授权
    Data corruption scrubbing for content addressable memory and ternary content addressable memory 有权
    数据损坏擦除内容可寻址内存和三进制内容可寻址内存

    公开(公告)号:US07757152B2

    公开(公告)日:2010-07-13

    申请号:US11207357

    申请日:2005-08-18

    IPC分类号: G11C29/00

    摘要: A method for remedying data corruption in a first circuit, which may be a CAM or a TCAM. The method includes providing a RAM circuit external to the first circuit, the RAM circuit being configured for storing error detection information for data stored in the first circuit. The method also includes scrubbing the data stored in the first circuit during scrubbing cycles of the first circuit. The scrubbing corrects stored bit patterns read from the first circuit that fail an error detection test using error detection information corresponding to individual ones of the stored bit patterns. In an embodiment, ECC may be employed for the error detection test and also to correct any single bit error found.

    摘要翻译: 一种用于补救第一电路中可能是CAM或TCAM的数据损坏的方法。 该方法包括提供第一电路外部的RAM电路,RAM电路被配置为存储用于存储在第一电路中的数据的错误检测信息。 该方法还包括在第一电路的擦洗循环期间擦洗存储在第一电路中的数据。 擦除使用与存储的位模式中的各个相对应的错误检测信息来校正从第一电路读取的存在的错误检测测试失败的位模式。 在一个实施例中,ECC可以用于错误检测测试,并且还可以校正发现的任何单个位错误。

    Data corruption scrubbing for content addressable memory and ternary content addressable memory
    35.
    发明申请
    Data corruption scrubbing for content addressable memory and ternary content addressable memory 有权
    数据损坏擦除内容可寻址内存和三进制内容可寻址内存

    公开(公告)号:US20070061668A1

    公开(公告)日:2007-03-15

    申请号:US11207357

    申请日:2005-08-18

    IPC分类号: H03M13/00

    摘要: A method for remedying data corruption in a first circuit, which may be a CAM or a TCAM. The method includes providing a RAM circuit external to the first circuit, the RAM circuit being configured for storing error detection information for data stored in the first circuit. The method also includes scrubbing the data stored in the first circuit during scrubbing cycles of the first circuit. The scrubbing corrects stored bit patterns read from the first circuit that fail an error detection test using error detection information corresponding to individual ones of the stored bit patterns. In an embodiment, ECC may be employed for the error detection test and also to correct any single bit error found.

    摘要翻译: 一种用于补救第一电路中可能是CAM或TCAM的数据损坏的方法。 该方法包括提供第一电路外部的RAM电路,RAM电路被配置为存储用于存储在第一电路中的数据的错误检测信息。 该方法还包括在第一电路的擦洗循环期间擦洗存储在第一电路中的数据。 擦除使用与存储的位模式中的各个相对应的错误检测信息来校正从第一电路读取的存在的错误检测测试失败的位模式。 在一个实施例中,ECC可以用于错误检测测试,并且还可以校正发现的任何单个位错误。

    Methods and apparatus for selection of mirrored traffic
    36.
    发明申请
    Methods and apparatus for selection of mirrored traffic 有权
    用于选择镜像流量的方法和装置

    公开(公告)号:US20050220092A1

    公开(公告)日:2005-10-06

    申请号:US10813766

    申请日:2004-03-31

    IPC分类号: H04L12/24 H04L12/28 H04L29/06

    摘要: One embodiment disclosed relates to a method for mirroring of select network traffic. A data packet is received by a network device. A determination is made as to whether a designated aspect of the packet matches a flagged entry in a look-up table on the network device. If a match is found, then copy of the packet is sent to an associated mirror destination. Another embodiment disclosed relates to a networking apparatus. The apparatus includes at least an operating system, a look-up table, and a mirroring engine. The operating system includes routines utilized to control the apparatus, and the look-up table includes selection information for mirror sources. The mirroring engine forwards copies of selected packets to a corresponding mirror destination. Another embodiment disclosed relates to a method of selecting packets to mirror that includes checking state information relating to the network traffic against dynamic mirroring criteria.

    摘要翻译: 公开的一个实施例涉及一种用于对选择网络业务进行镜像的方法。 数据包由网络设备接收。 确定分组的指定方面是否与网络设备上的查找表中的标记条目匹配。 如果发现匹配,则将数据包的副本发送到关联的镜像目的地。 公开的另一实施例涉及网络装置。 该装置至少包括操作系统,查找表和镜像引擎。 操作系统包括用于控制设备的例程,查找表包括用于镜像源的选择信息。 镜像引擎将所选数据包的副本转发到相应的镜像目的地。 所公开的另一实施例涉及一种选择要镜像的分组的方法,包括根据动态镜像标准检查与网络流量有关的状态信息。

    Diversified host based route selection metric
    37.
    发明申请
    Diversified host based route selection metric 有权
    多样化的基于主机的路由选择度量

    公开(公告)号:US20050050223A1

    公开(公告)日:2005-03-03

    申请号:US10648148

    申请日:2003-08-25

    IPC分类号: G06F15/173 H04L12/56

    摘要: An embodiment of the invention evaluates the suitability of routes for use in a network route cache. An embodiment of the invention allows the use of network routing caches to be optimized such that routes that are not used to route to a large number of destinations can be offloaded into a less expensive host route cache.

    摘要翻译: 本发明的实施例评估在网络路由高速缓存中使用的路由的适用性。 本发明的实施例允许网络路由高速缓存的使用被优化,使得不用于路由到大量目的地的路由可以被卸载到较便宜的主机路由高速缓存中。

    REDUNDANT NON-LOOPING PATHS
    38.
    发明申请
    REDUNDANT NON-LOOPING PATHS 审中-公开
    冗余非循环状态

    公开(公告)号:US20150098318A1

    公开(公告)日:2015-04-09

    申请号:US14372514

    申请日:2012-01-30

    IPC分类号: H04L12/24 H04L12/707

    摘要: An example method includes creating a plurality of redundant, non-looping paths to a plurality of switches, and providing information to the plurality of switches about the plurality of redundant, non-looping paths. The method further comprises assigning each of a plurality of clients to one of the plurality of redundant, non-looping paths, and providing information to the plurality of switches about which of the plurality of redundant, non-looping paths each client of the plurality of clients is assigned to. Then, in response to receiving a packet from a client of the plurality of clients, the method comprises transmitting the packet on one of the plurality of redundant, non-looping paths to one of the plurality of switches based at least in part on which of the plurality of redundant, non-looping paths the client is assigned to.

    摘要翻译: 示例性方法包括为多个交换机创建多个冗余的非循环路径,以及向多个交换机提供关于多个冗余的非循环路径的信息。 该方法还包括将多个客户端中的每一个分配给多个冗余非循环路径中的一个,并且向多个交换机提供关于多个交换机中的每个客户端的多个冗余非循环路径中的哪一个的信息 客户被分配到。 然后,响应于从多个客户端的客户机接收到一个分组,该方法包括至少部分地将多个冗余非循环路径之一上的分组发送到多个交换机之一, 客户端被分配给多个冗余的非循环路径。

    CONTENT-BASED FORWARDING OF NETWORK TRAFFIC
    39.
    发明申请
    CONTENT-BASED FORWARDING OF NETWORK TRAFFIC 有权
    基于内容的网络交通转发

    公开(公告)号:US20130208725A1

    公开(公告)日:2013-08-15

    申请号:US13370357

    申请日:2012-02-10

    IPC分类号: H04L12/56

    摘要: A method includes reading content of network traffic that arrives at a network port of a network switch of a mesh of network switches. A hash algorithm is applied to the read content to indicate a path to a destination network switch of the mesh, the hash algorithm being common to all network switches of the mesh. The network traffic is forwarded via a network port that is associated with the indicated path.

    摘要翻译: 一种方法包括读取到达网络交换机网格的网络交换机的网络端口的网络流量的内容。 散列算法应用于读取的内容以指示到网格的目的地网络交换机的路径,该散列算法对于网格的所有网络交换机是共同的。 通过与所指示的路径相关联的网络端口转发网络流量。