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    Providing support for responding to location protocol queries within a network node
    11.
    发明授权
    Providing support for responding to location protocol queries within a network node 有权
    提供支持响应网络节点内的位置协议查询

    公开(公告)号：US08073936B2

    公开(公告)日：2011-12-06

    申请号：US11449406

    申请日：2006-06-08

    申请人： Pradeep S. Sudame ,  Shree N. Murthy ,  Jie Cheng Jiang ,  Pauline Shuen

    发明人： Pradeep S. Sudame ,  Shree N. Murthy ,  Jie Cheng Jiang ,  Pauline Shuen

    IPC分类号： G06F15/16

    CPC分类号： H04L61/2015 ,  H04L41/12

    摘要： Various systems and methods are disclosed for providing support for responding to location protocol queries within a network node. One such method involves associating a location with a network identity by associating a network port with a network identity and also associating the network port with the location. The association between the network port and the network identity is created in response to a network identity, which can include an IP address, being assigned to a device coupled to the network port by an identity protocol such as DHCP. The packet is sent in response to detecting a request for the device's location. The method can be performed by various devices, including a first hop node coupled to the device, a location server, and an identity server.

    摘要翻译： 公开了各种系统和方法，用于提供对网络节点内的位置协议查询的响应的支持。 一种这样的方法涉及通过将网络端口与网络身份相关联并将网络端口与位置相关联来将位置与网络身份相关联。 网络端口和网络身份之间的关联是响应于可以包括IP地址的网络身份而创建的，该IP地址被分配给通过诸如DHCP的身份协议耦合到网络端口的设备。 响应于检测到设备的位置的请求而发送分组。 该方法可以由各种设备执行，包括耦合到设备的第一跳节点，位置服务器和身份服务器。

    Secure manufacturing devices in a switched Ethernet network
    12.
    发明授权
    Secure manufacturing devices in a switched Ethernet network 有权
    在交换以太网中安全制造设备

    公开(公告)号：US07607166B2

    公开(公告)日：2009-10-20

    申请号：US10890500

    申请日：2004-07-12

    申请人： Kenneth Coley ,  Pauline Shuen

    发明人： Kenneth Coley ,  Pauline Shuen

    IPC分类号： G06F7/04

    CPC分类号： H04L63/0236 ,  H04L63/101 ,  H04L67/12 ,  H04L67/322

    摘要： A method and apparatus for providing security to factory automation devices in a switched Ethernet network. Traffic between factory automation devices and an Ethernet switch is limited to packets including approved TCP/UDP port numbers and to selected data rates.

    摘要翻译： 一种用于向交换以太网中的工厂自动化设备提供安全性的方法和装置。 工厂自动化设备和以太网交换机之间的通信仅限于包括经过批准的TCP / UDP端口号和所选数据速率的数据包。

    System and method for integrating ring-protocol-compatible devices into network configurations that also include non-ring-protocol compatible devices
    13.
    发明申请
    System and method for integrating ring-protocol-compatible devices into network configurations that also include non-ring-protocol compatible devices 有权
    将环协议兼容设备集成到还包括非环路协议兼容设备的网络配置中的系统和方法

    公开(公告)号：US20080123562A1

    公开(公告)日：2008-05-29

    申请号：US11504941

    申请日：2006-08-15

    申请人： Lionel Florit ,  Robert W. Klessig ,  Francois E. Tallet ,  Pauline Shuen

    发明人： Lionel Florit ,  Robert W. Klessig ,  Francois E. Tallet ,  Pauline Shuen

    IPC分类号： H04L12/28

    CPC分类号： H04L12/42 ,  H04L45/18 ,  H04L45/48

    摘要： Various systems and methods for integrating ring-protocol-compatible devices into network configurations that also include non-ring-protocol-compatible devices are disclosed. One such method, which can be performed by a network node that supports a ring protocol, involves generating a ring protocol packet and sending that ring protocol packet to a neighboring node. The ring protocol packet includes information, and the presence of this information within the packet causes a network device that receives the ring protocol packet to drop the ring protocol packet unless the network device supports a ring protocol. The information can include a reserved address (e.g., in the destination address field of the packet) as well as a ring protocol identifier.

    摘要翻译： 公开了用于将环协议兼容设备集成到还包括非环协议兼容设备的网络配置中的各种系统和方法。 可以由支持环路协议的网络节点执行的一种这样的方法涉及生成环形协议分组并将该环形协议分组发送到相邻节点。 环协议分组包括信息，并且该分组内的该信息的存在使接收到环形协议分组的网络设备丢弃环形协议分组，除非网络设备支持环形协议。 信息可以包括保留地址（例如，在分组的目的地地址字段中）以及环路协议标识符。

    SUBNET SCOPED MULTICAST/BROADCAST PACKET DISTRIBUTION MECHANISM OVER A ROUTED NETWORK
    14.
    发明申请
    SUBNET SCOPED MULTICAST/BROADCAST PACKET DISTRIBUTION MECHANISM OVER A ROUTED NETWORK 有权
    分布式网络上的子网多媒体/广播分发机制

    公开(公告)号：US20120207160A1

    公开(公告)日：2012-08-16

    申请号：US13455822

    申请日：2012-04-25

    申请人： Navindra Yadav ,  James Rivers ,  Gnanaprakasam Pandian ,  Pauline Shuen ,  Scott Emery

    发明人： Navindra Yadav ,  James Rivers ,  Gnanaprakasam Pandian ,  Pauline Shuen ,  Scott Emery

    IPC分类号： H04L12/56

    CPC分类号： H04L12/56 ,  H04L12/1868 ,  H04L12/1886 ,  H04L45/16

    摘要： In one embodiment, a subnet-scoped multicast packet is received on an interface of a forwarding device that is connected to a host device of a subnet of a forwarding domain. The received subnet-scoped multicast packet is transmitted from one or more other interfaces of the forwarding device that are connected to one or more other host devices of the subnet. The received subnet-scoped multicast packet is also encapsulated with an additional header. The encapsulated subnet-scoped multicast packet is forwarded from the forwarding device to an intermediate router which routes the encapsulated subnet-scoped multicast packet to one or more other forwarding devices configured to decapsulate the encapsulated subnet-scoped multicast packet and transmit the decapsulated subnet-scoped multicast packet to one or more connected host devices of an additional portion of the subnet.

    摘要翻译： 在一个实施例中，在连接到转发域的子网的主机设备的转发设备的接口上接收子网范围的组播分组。 接收到的子网范围的组播数据包是从连接到子网的一个或多个其他主机设备的转发设备的一个或多个其他接口传送的。 接收到的子网范围的组播数据包也封装了一个额外的头。 封装的子网范围组播数据包从转发设备转发到中间路由器，路由器将封装的子网范围组播数据包路由到一个或多个其他转发设备，该转发设备配置为对封装的子网范围组播数据包进行解封装，并传送解封装的子网范围 组播分组到子网的附加部分的一个或多个连接的主机设备。

    Cross stack rapid transition protocol
    17.
    发明授权
    Cross stack rapid transition protocol 有权
    交叉堆栈快速转换协议

    公开(公告)号：US07480258B1

    公开(公告)日：2009-01-20

    申请号：US10614257

    申请日：2003-07-03

    申请人： Pauline Shuen ,  Chinying Chaou ,  Mallikarjuna R. Padavala ,  Moni Pande ,  Shyamasundar S. Kaluve

    发明人： Pauline Shuen ,  Chinying Chaou ,  Mallikarjuna R. Padavala ,  Moni Pande ,  Shyamasundar S. Kaluve

    IPC分类号： H04L12/28

    CPC分类号： H04L45/00 ,  H04L45/48

    摘要： A cross stack rapid transition protocol is provided for permitting multiple network devices organized as a stack to rapidly transition their ports in response to network changes so as to minimize traffic flow disruptions while avoiding loops. Each switch in the stack has a stack port that connects the switch to another switch in the stack, and a plurality of ports for connecting the switch to other entities of the computer network. Each switch includes a Spanning Tree Protocol (STP) entity that transitions the ports of the switch among a plurality of states including a forwarding state and a blocking state. Each switch also tracks which other switches are members of the switch stack. The stack port of each switch is transitioned to the forwarding state, and a single switch having connectivity to a root is elected to be a Stack Root. One or more other switches may have Alternate Stack Root Ports, that provide alternate paths to the root. If the current Stack Root loses connectivity to the root, the switch whose Alternate Stack Root Port represents the next best path to the root issues one or more proposal messages to the other members of the switch stack. These other members respond with an Acknowledgement, and the former Stack Root transitions its port to the blocking state. Once the proposing switch receives an Acknowledgment from all other active members of the switch stack, it transitions its Alternate Stack Root Port to the forwarding state so that network messages can be forwarded to and from switch stack.

    摘要翻译： 提供了一种交叉堆栈快速转换协议，用于允许组织为堆栈的多个网络设备响应于网络变化快速转换其端口，以便最大限度地减少流量中断，同时避免环路。 堆叠中的每个交换机都具有将交换机连接到堆叠中的另一个交换机的堆叠端口，以及用于将交换机连接到计算机网络的其他实体的多个端口。 每个交换机包括生成树协议（STP）实体，其在包括转发状态和阻塞状态的多个状态之间转换交换机的端口。 每个开关还跟踪哪些其他交换机是交换机堆栈的成员。 每个交换机的堆叠端口转换到转发状态，并且具有到根的连接的单个交换机被选为堆栈根。 一个或多个其他交换机可以具有备用堆叠根端口，其提供到根的备用路径。 如果当前的堆叠根路径与根的连接失败，交换机的备用堆叠根端口表示到根的下一个最佳路径会向交换机堆栈的其他成员发出一个或多个提议消息。 这些其他成员响应一个确认，并且前一个堆栈根转换其端口到阻塞状态。 一旦提议交换机从交换机堆叠的所有其他活动成员收到确认，它将其备用堆叠根端口转换为转发状态，以便网络消息可以转发到交换机堆栈。

    System and method for integrating ring-protocol-compatible devices into network configurations that also include non-ring-protocol compatible devices
    19.
    发明授权
    System and method for integrating ring-protocol-compatible devices into network configurations that also include non-ring-protocol compatible devices 有权
    将环协议兼容设备集成到还包括非环路协议兼容设备的网络配置中的系统和方法

    公开(公告)号：US08687523B2

    公开(公告)日：2014-04-01

    申请号：US13350346

    申请日：2012-01-13

    申请人： Lionel Florit ,  Robert W. Klessig ,  Francois E. Tallet ,  Pauline Shuen

    发明人： Lionel Florit ,  Robert W. Klessig ,  Francois E. Tallet ,  Pauline Shuen

    IPC分类号： H04L12/28

    CPC分类号： H04L12/42 ,  H04L45/18 ,  H04L45/48

    摘要： Various systems and methods for integrating ring-protocol-compatible devices into network configurations that also include non-ring-protocol-compatible devices are disclosed. One such method, which can be performed by a network node that supports a ring protocol, involves generating a ring protocol packet and sending that ring protocol packet to a neighboring node. The ring protocol packet includes information, and the presence of this information within the packet causes a network device that receives the ring protocol packet to drop the ring protocol packet unless the network device supports a ring protocol. The information can include a reserved address (e.g., in the destination address field of the packet) as well as a ring protocol identifier.

    摘要翻译： 公开了用于将环协议兼容设备集成到还包括非环协议兼容设备的网络配置中的各种系统和方法。 可以由支持环路协议的网络节点执行的一种这样的方法涉及生成环形协议分组并将该环形协议分组发送到相邻节点。 环协议分组包括信息，并且该分组内的该信息的存在使接收到环形协议分组的网络设备丢弃环形协议分组，除非网络设备支持环形协议。 信息可以包括保留地址（例如，在分组的目的地地址字段中）以及环路协议标识符。