公开(公告)号：US6097720A

公开(公告)日：2000-08-01

申请号：US056284

申请日：1998-04-07

申请人： Kenneth Araujo ,  Peter Si-Sheng Wang ,  Cyndi Jung

发明人： Kenneth Araujo ,  Peter Si-Sheng Wang ,  Cyndi Jung

IPC分类号： H04L12/70 ,  H04L29/06 ,  H04L29/08 ,  H04Q11/04 ,  H04L12/66

CPC分类号： H04L65/4076 ,  H04L29/06 ,  H04L69/16 ,  H04L69/168 ,  H04Q11/0478 ,  H04L2012/563 ,  H04L2012/5642 ,  H04L2012/5667 ,  H04L29/06027 ,  H04L69/324

摘要： In a network having one or more intermediate devices coupled to end stations by respective links, and including a multicast source end station such as a remote access server for an Internet service provider, and a plurality of multicast receiving end stations, such as customer premises equipment CPE, coupled to an intermediate device in the network, a method for distributing multicast distribution functions to the intermediate device is described. The method comprises establishing point-to-point sessions between the source end station and the plurality of receiving end stations according to a communication protocol such as the PPP. Also, a point-to-point session is established between the multicast source end station and the intermediate device by which the source end station feeds multicast messages to the intermediate device that are directed to a set of multicast groups. The method involves transmitting from end stations in the plurality of receiving end stations to the intermediate device respective multicast join messages. The multicast join messages include information identifying one or more multicast groups for the respective receiving end stations to join. In this way, the intermediate device is enabled to forward multicast messages directed to a particular multicast group in the set of multicast groups to the receiving end stations which have joined the particular multicast group.

摘要翻译： 在具有通过相应链路耦合到终端站的一个或多个中间设备的网络中，并且包括诸如用于因特网服务提供商的远程访问服务器的组播源终端站和多个多播接收终端站（诸如客户端设备 CPE，耦合到网络中的中间设备，描述了一种用于向中间设备分发多播分发功能的方法。 该方法包括根据诸如PPP之类的通信协议在源端站与多个接收端站之间建立点对点会话。 此外，在组播源终端站和中间设备之间建立点到点会话，源端站向中间设备馈送指向一组多播组的中间设备的多播消息。 该方法涉及从多个接收端站中的终端站向中间设备发送相应的组播加入消息。 多播加入消息包括标识用于各个接收端站加入的一个或多个多播组的信息。 以这种方式，使得中间设备能够将组播组中的特定组播组的组播消息转发给已加入特定多播组的接收端站。

公开(公告)号：US5999530A

公开(公告)日：1999-12-07

申请号：US761574

申请日：1996-12-06

申请人： Thomas LeMaire ,  Floyd Backes ,  Cyndi Jung

发明人： Thomas LeMaire ,  Floyd Backes ,  Cyndi Jung

IPC分类号： H04L12/66 ,  H04L12/18 ,  H04L12/46 ,  H04L12/56

CPC分类号： H04L12/1877 ,  H04L12/1836 ,  H04L12/185 ,  H04L12/4604 ,  H04L12/4625 ,  H04L12/1886 ,  Y10S370/911

摘要： A bridge (62) capable of reducing unwanted WAN multicast packet traffic in a LAN and an associated method and an associated LAN is disclosed. The bridge examines the contents of WAN multicast query and report packets and WAN multicast router-to-router discovery packets and includes this information in its filtering database (88). The bridge designates ports on which query packets or MRRDPs are received as router ports. When there is no WAN router generating multicast query packets into the LAN, the bridge simulates the behavior of a WAN router and generates WAN multicast query packets so as to cause report packet generation by end systems. A timeout interval for undesignating router ports and a method for determining an appropriate timeout for a port is disclosed.

摘要翻译： 公开了能够减少LAN中的不需要的WAN组播数据包流量的桥（62），以及相关联的方法和相关联的LAN。 该网桥检查WAN组播查询，报告报文和WAN组播路由器到路由器发现报文的内容，并将其包含在其过滤数据库（88）中。 桥接器指定接收到查询数据包或MRRDP作为路由器端口的端口。 当没有WAN路由器生成组播查询报文到局域网时，桥接器模拟WAN路由器的行为，并生成WAN组播查询报文，从而使终端系统生成报告报文。 公开了一种用于不指定路由器端口的超时间隔以及用于确定端口适当超时的方法。

公开(公告)号：US06169741A

公开(公告)日：2001-01-02

申请号：US09369495

申请日：1999-08-05

申请人： Thomas LeMaire ,  Floyd Backes ,  Cyndi Jung

发明人： Thomas LeMaire ,  Floyd Backes ,  Cyndi Jung

IPC分类号： H04L1228

CPC分类号： H04L12/1877 ,  H04L12/1836 ,  H04L12/185 ,  H04L12/1886 ,  H04L12/4604 ,  H04L12/4625 ,  Y10S370/911

摘要： A bridge (62) capable of reducing unwanted WAN multicast packet traffic in a LAN and an associated method and an associated LAN is disclosed. The bridge examines the contents of WAN multicast query and report packets and WAN multicast router-to-router discovery packets and includes this information in its filtering database (88). The bridge designates ports on which query packets or MRRDPs are received as router ports. When there is no WAN router generating multicast query packets into the LAN, the bridge simulates the behavior of a WAN router and generates WAN multicast query packets so as to cause report packet generation by end systems. A timeout interval for undesignating router ports and a method for determining an appropriate timeout for a port is disclosed.

摘要翻译： 公开了能够减少LAN中的不需要的WAN组播数据包流量的桥（62），以及相关联的方法和相关联的LAN。 该网桥检查WAN组播查询，报告报文和WAN组播路由器到路由器发现报文的内容，并将其包含在其过滤数据库（88）中。 桥接器指定接收到查询数据包或MRRDP作为路由器端口的端口。 当没有WAN路由器生成组播查询报文到局域网时，桥接器模拟WAN路由器的行为，并生成WAN组播查询报文，从而使终端系统生成报告报文。 公开了一种用于不指定路由器端口的超时间隔以及用于确定端口适当超时的方法。

公开(公告)号：US08037391B1

公开(公告)日：2011-10-11

申请号：US12471289

申请日：2009-05-22

申请人： Cyndi Jung ,  Nirmal Raj Saxena ,  Mark A. Overby ,  Andrew Currid

发明人： Cyndi Jung ,  Nirmal Raj Saxena ,  Mark A. Overby ,  Andrew Currid

IPC分类号： H03M13/00

CPC分类号： G06F11/1076 ,  G06F2211/1052 ,  G06F2211/1057

摘要： One embodiment of the present invention sets forth a technique for performing RAID-6 computations using simple arithmetic functions and two-dimensional table lookup operations. Four lookup tables are computed and saved prior to normal operation of a RAID-6 disk array. During normal operation of the RAID-6 disk array, all RAID-6 related computations may be performed using a small set of simple arithmetic operations and a set of lookup operations to three of the four previously saved lookup tables. Greater computational efficiency is gained by reducing the RAID-6 computations to simple operations that are performed efficiently on a typical central processing unit or graphics processing unit.

摘要翻译： 本发明的一个实施例提出了一种使用简单算术函数和二维表查找操作执行RAID-6计算的技术。 在RAID-6磁盘阵列正常运行之前，计算并保存四个查找表。 在RAID-6磁盘阵列的正常操作期间，可以使用一组简单的算术运算和一组查找操作来执行所有与RAID-6相关的计算，这四个以前保存的查找表中的三个。 通过将RAID-6计算减少到在典型中央处理单元或图形处理单元上有效执行的简单操作，可以获得更高的计算效率。

公开(公告)号：US5818838A

公开(公告)日：1998-10-06

申请号：US542157

申请日：1995-10-12

申请人： Floyd Backes ,  Cyndi Jung

发明人： Floyd Backes ,  Cyndi Jung

IPC分类号： H04L12/66 ,  H04L12/18 ,  H04L12/46 ,  H04L12/56

CPC分类号： H04L12/1877 ,  H04L12/1836 ,  H04L12/185 ,  H04L12/4604 ,  H04L12/4625 ,  H04L12/1886 ,  Y10S370/911

摘要： A bridge (62) capable of reducing unwanted WAN multicast packet traffic in a LAN is disclosed. The bridge examines the contents of WAN multicast query and report packets and includes this information in its filtering database (88). The bridge designates ports on which query packets are received as query ports. When there is no WAN router generating multicast query packets into the LAN, the bridge simulates the behavior of a WAN router and generates WAN multicast query packets so as to cause report packet generation by end systems. A timeout interval for undesignating query ports and a method for determining an appropriate timeout for a port is disclosed.

摘要翻译： 公开了一种能够减少LAN中不想要的WAN组播数据包流量的桥接器（62）。 网桥检查WAN组播查询和报告数据包的内容，并将其包含在其过滤数据库（88）中。 桥指定接收查询报文的端口作为查询端口。 当没有WAN路由器生成组播查询报文到局域网时，桥接器模拟WAN路由器的行为，并生成WAN组播查询报文，从而使终端系统生成报告报文。 公开了一种用于不指定查询端口的超时间隔和一种用于确定端口适当超时的方法。