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1. 发明授权

US08681641B1 Loop mitigation mechanism for ethernet networks 有权
标题翻译：以太网络环路缓解机制
公开(公告)号：US08681641B1
公开(公告)日：2014-03-25
申请号：US12146345
申请日：2008-06-25
申请人： Ali Sajassi , Norman Finn , Francois Tallet
发明人： Ali Sajassi , Norman Finn , Francois Tallet
IPC分类号： H04J1/16 , H04L12/28 , H04L12/56 , H04J3/14 , H04L1/00
CPC分类号： H04L45/745 , H04L1/00 , H04L12/462 , H04L12/4641 , H04L45/18
摘要： A technique is provided for mitigating loops in Ethernet networks. A first port in an Ethernet device receives an Ethernet frame. The frame includes a source identifier, a destination identifier, and a Virtual Local Area Network Identifier (VLAN ID). According to various embodiments, the VLAN ID (VID) has the encoding of both a community group as well as a source bridge ID. A VID database is accessed using the destination identifier and the VID to determine whether the first port has ingress enabled. A filtering database is accessed to determine an egress port for forwarding the Ethernet frame.
摘要翻译：提供了一种减轻以太网网络环路的技术。以太网设备中的第一个端口接收以太网帧。该帧包括源标识符，目的地标识符和虚拟局域网标识符（VLAN ID）。根据各种实施例，VLAN ID（VID）具有社区组以及源网桥ID的编码。使用目标标识符和VID访问VID数据库，以确定第一个端口是否启用了入口。访问过滤数据库以确定用于转发以太网帧的出口端口。

2. 发明授权

US07889681B2 Methods and devices for improving the multiple spanning tree protocol 有权
标题翻译：改进多生成树协议的方法和设备
公开(公告)号：US07889681B2
公开(公告)日：2011-02-15
申请号：US11182564
申请日：2005-07-14
申请人： Norman Finn
发明人： Norman Finn
IPC分类号： H04L12/28
CPC分类号： H04L12/462 , H04L12/4633 , H04L12/4645 , H04L45/00 , H04L45/16 , H04L45/48
摘要： The present invention provides improved unicast routing, multicast routing and unicast load sharing as compared with conventional methods. Preferred implementations of the invention provide improvements to IEEE 802.1Q. According to preferred aspects of the invention, each bridge is the root of its own multiple spanning tree instance (“MSTI”). Preferred implementations of the invention require no learning of media access control (“MAC”) addresses on the backbone of a network. Some methods of the invention can resolve spanning tree asymmetries. Preferred implementations of the invention require a very low computational load for control protocols.
摘要翻译：与常规方法相比，本发明提供了改进的单播路由，组播路由和单播负载共享。本发明的优选实现提供了对IEEE 802.1Q的改进。根据本发明的优选方面，每个桥是其自己的多生成树实例（“MSTI”）的根。本发明的优选实现不需要在网络的骨干网上学习媒体访问控制（“MAC”）地址。本发明的一些方法可以解决生成树不对称。对于控制协议，本发明的优选实现需要非常低的计算负荷。

3. 发明申请

US20070081557A1 Multiple aggregation protocol sessions in a daisy chain network 有权
标题翻译：菊花链网络中的多个聚合协议会话
公开(公告)号：US20070081557A1
公开(公告)日：2007-04-12
申请号：US11247468
申请日：2005-10-11
申请人： Stefano Binetti , Hiroshi Suzuki , Shreeram Bhide , Sitaram Dontu , Pagalavan Krishnamoorthy , Chien Fang , Norman Finn
发明人： Stefano Binetti , Hiroshi Suzuki , Shreeram Bhide , Sitaram Dontu , Pagalavan Krishnamoorthy , Chien Fang , Norman Finn
IPC分类号： H04L12/56 , H04J3/16 , H04J3/18 , H04L12/28 , H04J3/22
CPC分类号： H04L69/14 , Y02D50/30
摘要： Various systems and methods that allow multiple aggregation protocol sessions to be established in a daisy chain network are disclosed. One method involves sending a first aggregation protocol packet and a first session identifier associated therewith to a first network device via a first interface and sending a second aggregation protocol packet and a second session identifier associated therewith to a second network device via the first interface.
摘要翻译：公开了允许在菊花链网络中建立多个聚合协议会话的各种系统和方法。一种方法涉及经由第一接口向第一网络设备发送第一聚合协议分组和与其相关联的第一会话标识符，并经由第一接口向第二网络设备发送第二聚合协议分组和与其相关联的第二会话标识符。

4. 发明申请

US20070025256A1 Broadband access node with a virtual maintenance end point 有权
标题翻译：具有虚拟维护端点的宽带接入节点
公开(公告)号：US20070025256A1
公开(公告)日：2007-02-01
申请号：US11180003
申请日：2005-07-12
申请人： Yves Hertoghs , Ali Sajassi , Norman Finn , Wojciech Dec
发明人： Yves Hertoghs , Ali Sajassi , Norman Finn , Wojciech Dec
IPC分类号： H04L12/26
CPC分类号： H04L12/4633
摘要： A broadband access node includes a port for connection with a Digital Subscriber Line and a processor to run code that implements a virtual maintenance end point (vMEP). The vMEP translates an IEEE 802.1ag Loopback Message (LBM) received from a device on an Ethernet access network into a legacy operations and maintenance (OAM) message that is transmitted to a residential gateway (RG) device. The legacy OAM message determines a link-level connectivity status between broadband access node and the RG device. The vMEP also transmits a reply message back to the device on an Ethernet access network in compliance with the IEEE 802.1ag specification. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).
摘要翻译：宽带接入节点包括用于与数字用户线路连接的端口和用于运行实现虚拟维护终点（vMEP）的代码的处理器。 vMEP将从以太网接入网络上的设备接收的IEEE 802.1ag环回消息（LBM）转换为传输到住宅网关（RG）设备的传统操作和维护（OAM）消息。传统的OAM消息确定宽带接入节点和RG设备之间的链路级连接状态。 vMEP还根据IEEE 802.1ag规范在以太网接入网络上发送回应消息给设备。要强调的是，该摘要被提供以符合要求抽象的规则，允许搜索者或其他读者快速确定技术公开内容的主题。提交它的理解是，它不会用于解释或限制权利要求的范围或含义。 37 CFR 1.72（b）。

5. 发明申请

US20060146832A1 Method and system for transporting data using pseudowire circuits over a bridged network 有权
标题翻译：在桥接网络上使用伪线路传输数据的方法和系统
公开(公告)号：US20060146832A1
公开(公告)日：2006-07-06
申请号：US11029708
申请日：2005-01-05
申请人： Sanjeev Rampal , Jimmy Ervin , Norman Finn , Michael Smith
发明人： Sanjeev Rampal , Jimmy Ervin , Norman Finn , Michael Smith
IPC分类号： H04L12/56
CPC分类号： H04L12/46
摘要： A method for data communication across a layer 2 bridged network having two or more edge nodes configured for receiving and transmitting multiprotocol data packets. The method includes creating a pseudowire circuit across the bridged network, receiving data packets at one of the edge nodes, encapsulating data packets into pseudowire frames, encapsulating the pseudowire frames inside MAC frames, and transmitting the encapsulated frames over the carrier bridged network.
摘要翻译：一种用于跨第二层桥接网络进行数据通信的方法，该网络具有被配置用于接收和发送多协议数据分组的两个或多个边缘节点。该方法包括跨越桥接网络创建伪线电路，在边缘节点之一处接收数据分组，将数据分组封装成伪线帧，将伪线帧封装在MAC帧内，以及通过载波桥接网络传输封装帧。

6. 发明授权

US5742604A Interswitch link mechanism for connecting high-performance network switches 失效
标题翻译：用于连接高性能网络交换机的交换机连接机制
公开(公告)号：US5742604A
公开(公告)日：1998-04-21
申请号：US623142
申请日：1996-03-28
申请人： Tom Edsall , Norman Finn
发明人： Tom Edsall , Norman Finn
IPC分类号： H04L12/46 , H04L12/56 , H04L12/66
CPC分类号： H04L12/46 , H04L12/467 , H04L49/354 , H04L2212/00 , H04L49/351
摘要： An encapsulation mechanism efficiently transports packets between ports of different switches in a network on the basis of, inter alia, virtual local area network (VLAN) associations among those ports. The switches are preferably interconnected by a novel interswitch link (ISL) mechanism that appends ISL destination and source information, along with ISL error detection information, to VLAN-modified packets. The ISL mechanism keeps the VLAN associations of the packets intact during transfer between the switches in accordance with a high-performance switching bus architecture.
摘要翻译：基于这些端口之间的虚拟局域网（VLAN）关联，封装机制在网络中的不同交换机的端口之间有效地传输分组。交换机最好通过将ISL目的地和源信息连同ISL错误检测信息一起附加到VLAN修改的分组的新颖的交换机间链路（ISL）机制来互连。 ISL机制根据高性能交换总线架构，在交换机之间传输过程中保持数据包的VLAN关联。

7. 发明授权

US08812708B2 Transient unpruning for faster layer-two convergence 有权
标题翻译：瞬时取消运行，实现更快的二层收敛
公开(公告)号：US08812708B2
公开(公告)日：2014-08-19
申请号：US13189334
申请日：2011-07-22
申请人： Chiajen Tsai , Norman Finn , Yibin Yang , Nagabhushan K. Channabasappa , Debashis Patnala Rao
发明人： Chiajen Tsai , Norman Finn , Yibin Yang , Nagabhushan K. Channabasappa , Debashis Patnala Rao
IPC分类号： G06F15/16
CPC分类号： H04L41/0816 , H04L12/4687 , H04L12/4695 , H04L41/12 , H04L45/66
摘要： In one embodiment, a method includes detecting a change in network topology and broadcasting a transient unconditional unpruning message to all nodes in the network. The message is configured to instruct each network element receiving the message to start a phase timer in response to the broadcast message; unprune its operational ports; and, upon expiration of the phase timer, prune its ports in accordance with the results of a pruning protocol.
摘要翻译：在一个实施例中，一种方法包括检测网络拓扑的变化并且向网络中的所有节点广播瞬时无条件的取消运行消息。消息被配置为响应于广播消息指示接收消息的每个网络元件开始相位定时器; 解除其运营端口; 并且在相位计时器到期后，根据修剪协议的结果修剪其端口。

8. 发明授权

US08705502B2 Using encapsulation to enable 802.1 bridging across 802.11 links 有权
标题翻译：使用封装方式在802.11链路上启用802.1桥接
公开(公告)号：US08705502B2
公开(公告)日：2014-04-22
申请号：US12908408
申请日：2010-10-20
申请人： Brian Hart , Norman Finn , Andrew Myles
发明人： Brian Hart , Norman Finn , Andrew Myles
IPC分类号： H04W4/00
CPC分类号： H04L12/4633
摘要： In an example embodiment, packet encapsulation is employed to facilitate bridging between bridge ports that do not reflect frames (such as 802.1 compatible bridge ports) and bridge ports that do reflect frames (such as 802.11 compatible clients). Packets from a wireless access point may be sent twice, once with a predefined multicast address for processing by 802.11 clients contained in bridges, and once with the original destination address. In particular embodiments, additional means may be employed to minimize the circumstances where packets are duplicated.
摘要翻译：在示例实施例中，采用分组封装来促进不反映帧（例如，802.1兼容网桥端口）的网桥端口与反映帧（例如802.11兼容客户端）的网桥端口之间的桥接。来自无线接入点的分组可以被发送两次，一次用预定义的多播地址，以供包含在网桥中的802.11客户端处理，一次与原始目的地地址一起。在特定实施例中，可以采用附加装置来最小化分组被复制的情况。

9. 发明申请

US20130024580A1 Transient Unpruning for Faster Layer-Two Convergence 有权
标题翻译：瞬态恢复更快的二层收敛
公开(公告)号：US20130024580A1
公开(公告)日：2013-01-24
申请号：US13189334
申请日：2011-07-22
申请人： Chiajen Tsai , Norman Finn , Yibin Yang , Nagabhushan K. Channabasappa , Debashis Patnala Rao
发明人： Chiajen Tsai , Norman Finn , Yibin Yang , Nagabhushan K. Channabasappa , Debashis Patnala Rao
IPC分类号： G06F15/16
CPC分类号： H04L41/0816 , H04L12/4687 , H04L12/4695 , H04L41/12 , H04L45/66
摘要： In one embodiment, a method includes detecting a change in network topology and broadcasting a transient unconditional unpruning message to all nodes in the network. The message is configured to instruct each network element receiving the message to start a phase timer in response to the broadcast message; unprune its operational ports; and, upon expiration of the phase timer, prune its ports in accordance with the results of a pruning protocol.
摘要翻译：在一个实施例中，一种方法包括检测网络拓扑的变化并且向网络中的所有节点广播瞬时无条件的取消运行消息。消息被配置为响应于广播消息指示接收消息的每个网络元件开始相位定时器; 解除其运营端口; 并且在相位计时器到期后，根据修剪协议的结果修剪其端口。

10. 发明申请

US20120099567A1 USING ENCAPSULATION TO ENABLE 802.1 BRIDGING ACROSS 802.11 LINKS 有权
标题翻译：在802.11链路之间使用加密来启用802.1WID
公开(公告)号：US20120099567A1
公开(公告)日：2012-04-26
申请号：US12908408
申请日：2010-10-20
申请人： Brian HART , Norman FINN , Andrew MYLES
发明人： Brian HART , Norman FINN , Andrew MYLES
IPC分类号： H04W40/00
CPC分类号： H04L12/4633
摘要： In an example embodiment, packet encapsulation is employed to facilitate bridging between bridge ports that do not reflect frames (such as 802.1 compatible bridge ports) and bridge ports that do reflect frames (such as 802.11 compatible clients). Packets from a wireless access point may be sent twice, once with a predefined multicast address for processing by 802.11 clients contained in bridges, and once with the original destination address. In particular embodiments, additional means may be employed to minimize the circumstances where packets are duplicated.
摘要翻译：在示例实施例中，采用分组封装来促进不反映帧（例如，802.1兼容网桥端口）的网桥端口与反映帧（例如802.11兼容客户端）的网桥端口之间的桥接。来自无线接入点的分组可以被发送两次，一次用预定义的多播地址，以供包含在网桥中的802.11客户端处理，一次与原始目的地地址一起。在特定实施例中，可以采用附加装置来最小化分组被复制的情况。

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