公开(公告)号：US09031070B2

公开(公告)日：2015-05-12

申请号：US13981936

申请日：2011-02-18

申请人： Duane Edward Mentze ,  Mark Gooch ,  Steven Glen Jorgensen

发明人： Duane Edward Mentze ,  Mark Gooch ,  Steven Glen Jorgensen

IPC分类号： H04L12/28 ,  H04L12/733 ,  H04L12/18

CPC分类号： H04L45/122 ,  H04L12/1886 ,  H04L45/16

摘要： Methods for controlling a Designated Forwarder (DF) election in a multicast network are described herein. The multicast network includes a plurality of multicast network devices, including a first network device and a second network device. A Designated Forwarder is determined. It is determined whether to initiate a Designated Forwarder election based on a comparison of a metric measuring a distance to a Rendezvous Point Address from a first network device and a metric measuring the distance to the Rendezvous Point Address from the second network device.

摘要翻译： 这里描述了用于控制组播网络中的指定转发器（DF）选举的方法。 组播网络包括多个组播网络设备，包括第一网络设备和第二网络设备。 指定代理商已确定。 基于从第一网络设备测量到集合点地址的距离的度量和从第二网络设备测量到集合点地址的距离的度量的度量的比较来确定是否发起指定的转发器选举。

公开(公告)号：US20130315090A1

公开(公告)日：2013-11-28

申请号：US13981936

申请日：2011-02-18

申请人： Duane Edward Mentze ,  Mark Gooch ,  Steven Glen Jorgensen

发明人： Duane Edward Mentze ,  Mark Gooch ,  Steven Glen Jorgensen

IPC分类号： H04L12/733

CPC分类号： H04L45/122 ,  H04L12/1886 ,  H04L45/16

摘要： Methods for controlling a Designated Forwarder (DF) election in a multicast network are described herein. The multicast network includes a plurality of multicast network devices, including a first network device and a second network device. A Designated Forwarder is determined. It is determined whether to initiate a Designated Forwarder election based on a comparison of a metric measuring a distance to a Rendezvous Point Address from a first network device and a metric measuring the distance to the Rendezvous Point Address from the second network device.

摘要翻译： 这里描述了用于控制组播网络中的指定转发器（DF）选举的方法。 组播网络包括多个组播网络设备，包括第一网络设备和第二网络设备。 指定代理商已确定。 基于从第一网络设备测量到集合点地址的距离的度量和从第二网络设备测量到集合点地址的距离的度量的度量的比较来确定是否发起指定的转发器选举。

公开(公告)号：US20080298110A1

公开(公告)日：2008-12-04

申请号：US11810124

申请日：2007-06-04

申请人： John A. Wickeraad ,  Mark Gooch

发明人： John A. Wickeraad ,  Mark Gooch

IPC分类号： G11C15/04

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。 在选定的1xM列之外的数据字被屏蔽以在确定匹配时被忽略，并且搜索CAM。 每个搜索包括N个比较周期，并且选择了不同的1xM列的每个比较周期。 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。

公开(公告)号：US20070183416A1

公开(公告)日：2007-08-09

申请号：US11350347

申请日：2006-02-07

申请人： Mark Gooch ,  Robert Faulk ,  Bruce LaVigne

发明人： Mark Gooch ,  Robert Faulk ,  Bruce LaVigne

IPC分类号： H04L12/56

CPC分类号： H04L49/9063 ,  H04L45/30 ,  H04L45/60 ,  H04L49/90

摘要： In an embodiment of the invention, a method and system for a per-port penalty queue system in a network device includes: selecting a state for a port in the network device; wherein the selected state comprises either a normal state or a restricted state; wherein the normal state permits a packet received at the port to be copied to a first queue; and wherein the restricted state causes the packet to be copied to a penalty queue which has lower priority than the first queue or causes the packet to not be copied to a queue. In another embodiment of the invention, a method and system permit using the port state for modifying a forwarding decision for a packet, so that the penalized packet will use a sub-optimal or less optimal routing path to the packet destination. In another embodiment of the invention, a method and system permit using the port state as a search key into an access control list (ACL) operation related to packet forwarding decisions or packet filtering decisions.

摘要翻译： 在本发明的一个实施例中，网络设备中的每端口处理队列系统的方法和系统包括：为网络设备中的端口选择状态; 其中所述选择状态包括正常状态或限制状态; 其中所述正常状态允许在所述端口处接收到的分组被复制到第一队列; 并且其中所述受限状态使得所述分组被复制到具有比所述第一队列低的优先级的惩罚队列，或者使得所述分组不被复制到队列。 在本发明的另一个实施例中，一种方法和系统允许使用端口状态来修改分组的转发决定，使得受惩罚的分组将使用到分组目的地的次优或不太优化的路由路径。 在本发明的另一个实施例中，方法和系统允许将端口状态用作搜索关键字进入与分组转发决定或分组过滤决策相关的访问控制列表（ACL）操作。

公开(公告)号：US20050114522A1

公开(公告)日：2005-05-26

申请号：US10723041

申请日：2003-11-26

申请人： Bruce LaVigne ,  Paul Congdon ,  Mark Gooch

发明人： Bruce LaVigne ,  Paul Congdon ,  Mark Gooch

IPC分类号： G06F15/16 ,  H04L29/06 ,  H04L29/08

CPC分类号： H04L67/1095 ,  H04L69/22 ,  H04L69/329

摘要： One embodiment disclosed relates to a method for remote mirroring of network traffic. A data packet to be remotely mirrored is received by an entry device. The entry device is pre-configured with a destination Internet Protocol (IP) address to which to mirror the data packet. An IP header is generated and added to IP encapsulate the data packet. The IP header includes the aforementioned destination IP address. The IP-encapsulated packet is forwarded to an exit device associated with the destination IP address. Subsequently, the exit device may decapsulate the IP-encapsulated packet to reproduce the original data packet.

摘要翻译： 公开的一个实施例涉及一种用于远程镜像网络业务的方法。 要进行远程镜像的数据包由入口设备接收。 入口设备预先配置有与之对应的数据包的目标Internet协议（IP）地址。 生成IP报头并将其添加到IP封装数据包。 IP报头包括上述目的地IP地址。 IP封装的数据包转发到与目标IP地址相关联的退出设备。 随后，出口设备可以对IP封装的分组进行解封装以再现原始数据分组。

公开(公告)号：US10277501B2

公开(公告)日：2019-04-30

申请号：US13980901

申请日：2011-01-31

申请人： Duane Mentze ,  Mark Gooch ,  Steven Glen Jorgensen

发明人： Duane Mentze ,  Mark Gooch ,  Steven Glen Jorgensen

IPC分类号： H04L12/705 ,  H04L12/761

摘要： A method for handling of conflicts in a multicast routing election in a multicast network is described herein. The multicast network includes a plurality of multicast network devices. A conflict is detected in a Designated Forwarder (DF) election for a link.

公开(公告)号：US08594096B2

公开(公告)日：2013-11-26

申请号：US13285498

申请日：2011-10-31

申请人： Shaun Wakumoto ,  Andrew T Bare ,  Mark Gooch

发明人： Shaun Wakumoto ,  Andrew T Bare ,  Mark Gooch

IPC分类号： H04L12/28

CPC分类号： H04L49/351 ,  H04L49/25 ,  H04L49/65 ,  H04L61/2038 ,  H04L61/6022

摘要： Dynamic hardware address assignment to network devices in a switch mesh is described. In an example, a network device in a switch mesh dynamically assigns a hardware address to a network interface. The network device receives an address request from a client through the switch mesh. The network device calculates an index value for the client based on data in the address request. The network device selects the hardware address of a plurality of hardware addresses assigned to the network interface based on the index value. The switch mesh includes a plurality of traffic paths respectively for the plurality of hardware addresses. The network device sends the hardware address in a reply to the client through the switch mesh.

摘要翻译： 描述了交换机网关中网络设备的动态硬件地址分配。 在一个示例中，交换机网关中的网络设备动态地将硬件地址分配给网络接口。 网络设备通过交换机网格接收客户端的地址请求。 网络设备根据地址请求中的数据计算客户端的索引值。 网络设备基于索引值来选择分配给网络接口的多个硬件地址的硬件地址。 交换机网关分别包括用于多个硬件地址的多个业务路径。 网络设备通过交换机网格向客户端发送回复中的硬件地址。

公开(公告)号：US20130107755A1

公开(公告)日：2013-05-02

申请号：US13285498

申请日：2011-10-31

申请人： Shaun Wakumoto ,  Andrew T. Bare ,  Mark Gooch

发明人： Shaun Wakumoto ,  Andrew T. Bare ,  Mark Gooch

IPC分类号： H04L12/28

CPC分类号： H04L49/351 ,  H04L49/25 ,  H04L49/65 ,  H04L61/2038 ,  H04L61/6022

摘要： Dynamic hardware address assignment to network devices in a switch mesh is described. In an example, a network device in a switch mesh dynamically assigns a hardware address to a network interface. The network device receives an address request from a client through the switch mesh. The network device calculates an index value for the client based on data in the address request. The network device selects the hardware address of a plurality of hardware addresses assigned to the network interface based on the index value. The switch mesh includes a plurality of traffic paths respectively for the plurality of hardware addresses. The network device sends the hardware address in a reply to the client through the switch mesh.

摘要翻译： 描述了交换机网关中网络设备的动态硬件地址分配。 在一个示例中，交换机网关中的网络设备动态地将硬件地址分配给网络接口。 网络设备通过交换机网格接收客户端的地址请求。 网络设备根据地址请求中的数据计算客户端的索引值。 网络设备基于索引值来选择分配给网络接口的多个硬件地址的硬件地址。 交换机网关分别包括用于多个硬件地址的多个业务路径。 网络设备通过交换机网格向客户端发送回复中的硬件地址。

公开(公告)号：US20100329257A1

公开(公告)日：2010-12-30

申请号：US12494993

申请日：2009-06-30

申请人： Craig A. Vanzante ,  Robert L. Faulk, JR. ,  Mark Gooch

发明人： Craig A. Vanzante ,  Robert L. Faulk, JR. ,  Mark Gooch

IPC分类号： H04L12/56

CPC分类号： H04L49/9063 ,  H04L49/90 ,  H04L49/9042 ,  H04L49/9094

摘要： A method of selective direct memory access (DMA) in a computer system having a network interface card (NIC), a processor subsystem, and a memory accessible to the subsystem, including the steps of the NIC receiving a plurality of packets from an external source; the NIC decoding a portion of each packet and determining whether the packet should be accepted by the computer system based on a predefined rule; and if the packet is accepted, selectively truncating the packet based on the predefined rule, and storing the truncated packet in the memory.

摘要翻译： 一种在具有网络接口卡（NIC），处理器子系统和子系统可访问的存储器的计算机系统中的选择性直接存储器访问（DMA）的方法，包括NIC从外部源接收多个分组的步骤 ; NIC对每个分组的一部分进行解码，并且基于预定义的规则确定分组是否应该被计算机系统接受; 并且如果分组被接受，则基于预定义规则选择性地截断分组，并将截断的分组存储在存储器中。

公开(公告)号：US07467228B2

公开(公告)日：2008-12-16

申请号：US10648148

申请日：2003-08-25

申请人： Michael T. Roeder ,  Mark Gooch

发明人： Michael T. Roeder ,  Mark Gooch

IPC分类号： G06F15/173

CPC分类号： H04L45/60 ,  H04L45/02 ,  H04L45/745

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。