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    LAN emulation service delay of multicast tree generation during congestion
    1.
    发明授权
    LAN emulation service delay of multicast tree generation during congestion 失效
    拥塞期间组播树生成的局域网仿真服务延迟

    公开(公告)号：US06324163B1

    公开(公告)日：2001-11-27

    申请号：US08977641

    申请日：1997-11-24

    申请人： Cedell Adam Alexander, Jr. ,  Jim P. Ervin ,  Edward Joel Rovner ,  Matthew Blaze Squire ,  Mark Alan Tippens

    发明人： Cedell Adam Alexander, Jr. ,  Jim P. Ervin ,  Edward Joel Rovner ,  Matthew Blaze Squire ,  Mark Alan Tippens

    IPC分类号： H04L1228

    CPC分类号： H04Q11/0478 ,  H04L2012/5617 ,  H04L2012/563 ,  H04L2012/5632

    摘要： A method of alleviating network congestion in an emulated Local Area Network (ELAN) within an Asynchronous Transfer Mode (ATM) network is implemented. The method mitigates network congestion by distributing the connection times of Local Area Network (LAN) Emulation Client (LEC) to an ELAN over random periods of time. When a LAN Emulation Server (LES) or Broadcast and Unknown Server (BUS) attempts to build point-to-multipoint connections to the LEC, it issues control messages to network switches. If the messages are dropped or rejected the LES or BUS recognizes the network is in a congested state and randomly retries to attempt connection.

    摘要翻译： 实现了在异步传输模式（ATM）网络中的模拟局域网（ELAN）中减轻网络拥塞的方法。 该方法通过随机时间将局域网（LAN）仿真客户端（LEC）的连接时间分配给ELAN来减轻网络拥塞。 当LAN仿真服务器（LES）或广播和未知服务器（BUS）尝试构建到LEC的点对多点连接时，它向网络交换机发出控制消息。 如果消息丢失或拒绝，则LES或BUS识别网络处于拥塞状态，随机重试尝试连接。

    High speed internetworking traffic scaler and shaper
    4.
    发明授权
    High speed internetworking traffic scaler and shaper 失效
    高速互联网络流量定标器和整形器

    公开(公告)号：US6052375A

    公开(公告)日：2000-04-18

    申请号：US980090

    申请日：1997-11-26

    申请人： Brian M. Bass ,  Jim P. Ervin ,  Douglas Ray Henderson ,  Edward Hau-chun Ku ,  Joseph Kinman Lee ,  Scott J. Lemke ,  Joseph M. Rash ,  Loren Blair Reiss

    发明人： Brian M. Bass ,  Jim P. Ervin ,  Douglas Ray Henderson ,  Edward Hau-chun Ku ,  Joseph Kinman Lee ,  Scott J. Lemke ,  Joseph M. Rash ,  Loren Blair Reiss

    IPC分类号： H04L12/56

    CPC分类号： H04L47/24 ,  H04L12/5693 ,  H04L47/10 ,  H04L47/22 ,  H04L47/39 ,  H04L47/522 ,  H04L47/527 ,  H04L47/6225 ,  H04L49/90

    摘要： A method and system are provided for traffic shaping and bandwidth scaling in a high speed internetworking device. A slot time wheel mechanism is provided for traffic rate control and a credit/debit mechanism is provided for traffic shaping and scaling. The high speed traffic scaler and shaper incorporates a programmable slot time wheel, a traffic scaler state machine, a traffic shaper parameter table and a traffic scaler processor. The traffic scaler processor incorporates a traffic queue allocation manager, a queue priority arbiter, a port enable selector, a port priority arbiter and a DMA channel arbiter. The traffic queue allocation manager and the queue priority, port priority and DMA channel arbiters are each controlled by a corresponding state machine. The parameters in the traffic shaper parameter table are dynamically updated for each logical queue and are used to enable the credit/debit mechanism.

    摘要翻译： 提供了一种用于高速互联网络设备中的流量整形和带宽缩放的方法和系统。 提供了时隙时间轮机制，用于通信速率控制，并提供信用/借记机制用于流量整形和缩放。 高速流量缩放器和整形器结合了可编程时隙时间轮，流量缩放器状态机，流量整形器参数表和流量缩放器处理器。 流量缩放器处理器包括流量队列分配管理器，队列优先仲裁器，端口使能选择器，端口优先仲裁器和DMA通道仲裁器。 流量队列分配管理器和队列优先级，端口优先级和DMA通道仲裁器均由相应的状态机控制。 流量整形器参数表中的参数为每个逻辑队列动态更新，并用于启用信用/借记机制。

    Technique for transferring data over a packet switched network
    5.
    发明授权
    Technique for transferring data over a packet switched network 有权
    通过分组交换网络传输数据的技术

    公开(公告)号：US08149731B2

    公开(公告)日：2012-04-03

    申请号：US10876127

    申请日：2004-06-24

    申请人： Jim P. Ervin ,  Sanjeev D. Rampal ,  Charles A. Carriker, Jr. ,  Thomas E. Black, Jr.

    发明人： Jim P. Ervin ,  Sanjeev D. Rampal ,  Charles A. Carriker, Jr. ,  Thomas E. Black, Jr.

    IPC分类号： H04L12/28 ,  H04L12/56

    CPC分类号： H04L45/50 ,  H04L12/4633 ,  H04L45/02

    摘要： A technique transfers data over a packet-switched network (PSN), comprising a plurality of intermediate nodes, in a manner that does not require that the intermediate nodes support a network layer infrastructure. A network controller coupled to the intermediate nodes acquires topology information associated with the PSN's topology. This information may include pseudo-wire definitions, ingress and egress interface information, ingress and egress labels, and so on. The network controller generates a transport database from the topology information and distributes the transport database to the intermediate nodes. An intermediate node acquires the transport database information and configures a packet-processing engine (PPE), contained within the intermediate node, to process packets acquired by the intermediate node.

    摘要翻译： 一种技术以不要求中间节点支持网络层基础设施的方式通过包含多个中间节点的分组交换网络（PSN）来传送数据。 耦合到中间节点的网络控制器获取与PSN拓扑相关联的拓扑信息。 该信息可以包括伪线定义，入口和出口接口信息，入口和出口标签等。 网络控制器从拓扑信息生成传输数据库，并将传输数据库分发到中间节点。 中间节点获取传输数据库信息并配置包含在中间节点内的分组处理引擎（PPE），以处理由中间节点获取的分组。

    Technique for transferring data over a packet switched network
    8.
    发明申请
    Technique for transferring data over a packet switched network 有权
    通过分组交换网络传输数据的技术

    公开(公告)号：US20060013226A1

    公开(公告)日：2006-01-19

    申请号：US10876127

    申请日：2004-06-24

    申请人： Jim P. Ervin ,  Sanjeev D. Rampal ,  Charles Carriker ,  Thomas Black

    发明人： Jim P. Ervin ,  Sanjeev D. Rampal ,  Charles Carriker ,  Thomas Black

    IPC分类号： H04L12/28

    CPC分类号： H04L45/50 ,  H04L12/4633 ,  H04L45/02

    摘要： A technique transfers data over a packet-switched network (PSN), comprising a plurality of intermediate nodes, in a manner that does not require that the intermediate nodes support a network layer infrastructure. A network controller coupled to the intermediate nodes acquires topology information associated with the PSN's topology. This information may include pseudo-wire definitions, ingress and egress interface information, ingress and egress labels, and so on. The network controller generates a transport database from the topology information and distributes the transport database to the intermediate nodes. An intermediate node acquires the transport database information and configures a packet-processing engine (PPE), contained within the intermediate node, to process packets acquired by the intermediate node.

    摘要翻译： 一种技术以不要求中间节点支持网络层基础设施的方式通过包含多个中间节点的分组交换网络（PSN）来传送数据。 耦合到中间节点的网络控制器获取与PSN拓扑相关联的拓扑信息。 该信息可以包括伪线定义，入口和出口接口信息，入口和出口标签等。 网络控制器从拓扑信息生成传输数据库，并将传输数据库分发到中间节点。 中间节点获取传输数据库信息并配置包含在中间节点内的分组处理引擎（PPE）来处理由中间节点获取的分组。

    Method and system for distributing network routing functions to local area network stations
    10.
    发明授权
    Method and system for distributing network routing functions to local area network stations 失效
    将网络路由功能分配给局域网站的方法和系统

    公开(公告)号：US06172981B2

    公开(公告)日：2001-01-09

    申请号：US08961114

    申请日：1997-10-30

    申请人： Norman Eugene Cox ,  Kenneth J. Christensen ,  Jim P. Ervin ,  Richard Colbert Matlack, Jr.

    发明人： Norman Eugene Cox ,  Kenneth J. Christensen ,  Jim P. Ervin ,  Richard Colbert Matlack, Jr.

    IPC分类号： H04L1228

    CPC分类号： H04Q11/0478 ,  H04L2012/5617 ,  H04L2012/562 ,  H04L2012/5667

    摘要： A route switching layer is provided to end stations on a local area network (LAN) segment between the network layer protocol stack and the LAN adapter device driver. The route switching layer reads the network layer protocol header in a data frame queued for transmission. If the data frame is destined for a station on a different LAN segment, the route switching layer compares the network layer address with entries stored in a local address table. If a match occurs, the route switching layer inserts the corresponding data link layer address from the table in the data link header that is appended to the data frame. The data frame is then transmitted directly from source to destination end station by a hardware switch. If an address table match does not occur, the source station route switching layer sends a query to a route server device for the data link layer address corresponding to the network layer address of the destination end station. The route server sends a response to the source station route switching layer which then stores the destination address information in the local address table.

    摘要翻译： 路由交换层被提供给网络层协议栈和LAN适配器设备驱动程序之间的局域网（LAN）段上的终端站。 路由交换层读取排队等待发送的数据帧中的网络层协议报头。 如果数据帧指定为不同LAN段上的站，则路由交换层将网络层地址与存储在本地地址表中的条目进行比较。 如果发生匹配，路由交换层将附加到数据帧的数据链路头中的表中的相应数据链路层地址插入。 然后通过硬件交换机直接从源到目的地终端发送数据帧。 如果地址表匹配不发生，则源站路由交换层向路由服务器设备发送与目的终端站的网络层地址对应的数据链路层地址的查询。 路由服务器向源站路由交换层发送响应，然后将目的地址信息存储在本地地址表中。