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81. 发明授权

US07930741B2 System and method for securing an ethernet connectivity fault management (CFM) domain defined on a VLAN 有权
标题翻译：在VLAN上定义的以太网连接故障管理（CFM）域的系统和方法
公开(公告)号：US07930741B2
公开(公告)日：2011-04-19
申请号：US11221276
申请日：2005-09-06
申请人： David Elie-Dit-Cosaque , Kamakshi Sridhar , Maarten Petrus Joseph Vissers , Jessy Rouyer
发明人： David Elie-Dit-Cosaque , Kamakshi Sridhar , Maarten Petrus Joseph Vissers , Jessy Rouyer
IPC分类号： G06F11/00 , G06F12/14 , G06F12/16 , G08B23/00
CPC分类号： H04L12/4687 , H04L12/4641 , H04L12/4691
摘要： A system and method for securing an Ethernet Connectivity Fault Management (CFM) domain defined on a Virtual Local Area Network (VLAN). In one embodiment, the scheme includes, responsive to registering by an external port with the VLAN, whereby the VLAN is extended to include the external port, monitoring by a boundary Maintenance End Point (MEP) node of the Ethernet CFM domain to determine if bidirectional control frame flow (e.g., Continuity Check (CC) frame flow) is observed thereat; and, responsive to determining by the boundary MEP node that there is no bidirectional control frame flow therethrough, generating an alarm indicative of a potential breach of the Ethernet CFM domain by the external port.
摘要翻译：一种用于保护在虚拟局域网（VLAN）上定义的以太网连接故障管理（CFM）域的系统和方法。在一个实施例中，该方案包括响应于外部端口与VLAN的注册，由此扩展VLAN以包括外部端口，由以太网CFM域的边界维护端点（MEP）节点监视以确定是否双向在那里观察到控制帧流（例如，连续性检查（CC）帧流）; 并且响应于由边界MEP节点确定没有双向控制帧流过其中，从而产生指示由外部端口潜在地违反以太网CFM域的警报。

82. 发明申请

US20090303882A1 Mechanism for implementing load balancing in a network 有权
标题翻译：在网络中实现负载均衡的机制
公开(公告)号：US20090303882A1
公开(公告)日：2009-12-10
申请号：US11732601
申请日：2007-04-03
申请人： Bert H. Tanaka , Daniel J. Maltbie , Joseph R. Mihelich
发明人： Bert H. Tanaka , Daniel J. Maltbie , Joseph R. Mihelich
IPC分类号： H04L12/26
CPC分类号： H04L47/10 , H04L12/4641 , H04L12/4691 , H04L45/125 , H04L45/22 , H04L45/24 , H04L47/11 , H04L47/122 , H04L47/125 , H04L47/283
摘要： A mechanism is disclosed for enabling load balancing to be achieved in a network. In one implementation, load balancing is implemented on a “per flow” basis. At the time that a new flow starts, a path is selected. Packets associated with the flow are thereafter sent along that particular path. As the packets associated with the flow are forwarded along the particular path, a congestion metric is determined for the particular path as well as for a set of one or more other paths. Based at least partially upon the congestion metrics, a determination is made as to whether the flow should be moved. If so, then the flow is moved to an alternate path. By determining the congestion metrics for the multiple paths, and by moving the flow in response, it is possible to adapt to changing traffic conditions to keep the loads on the paths relatively balanced.
摘要翻译：公开了一种用于在网络中实现负载平衡的机制。在一个实现中，负载均衡是在“每流”的基础上实现的。在新流程开始的时候，选择一个路径。与流相关联的包随后沿着该特定路径发送。当与流相关联的分组沿着特定路径转发时，为特定路径以及一组一个或多个其他路径确定拥塞度量。至少部分地基于拥塞度量，确定是否应该移动流。如果是这样，则流程被移动到备用路径。通过确定多个路径的拥塞度量，并且通过响应流动来移动，可以适应不断变化的业务状况，以使路径上的负载相对平衡。

83. 发明授权

US07420933B2 Techniques for zero touch provisioning of edge nodes for a virtual private network by pushing configuration from a server 有权
标题翻译：通过从服务器推送配置来为虚拟专用网络的边缘节点进行零触摸配置的技术
公开(公告)号：US07420933B2
公开(公告)日：2008-09-02
申请号：US11143546
申请日：2005-06-02
申请人： Earl Hardin Booth, III , William Mark Townsley , Greg Weber , Wei Luo
发明人： Earl Hardin Booth, III , William Mark Townsley , Greg Weber , Wei Luo
IPC分类号： H04L12/28 , H04L12/66
CPC分类号： H04L41/08 , H04L12/4641 , H04L12/4691 , H04L41/0806 , H04L41/0843 , H04L41/0889 , H04L43/0811
摘要： A method and apparatus for configuring a network interface to support a virtual private network includes storing configuration data at a server on a host computer on the provider network. It is determined without human intervention whether conditions are satisfied for sending the configuration data to a particular node at an edge of the provider network without receiving a request message from the particular node. If it is determined that conditions are satisfied, then the configuration data is sent to the particular node to cause the particular node to configure a particular interface for supporting a virtual private network over the provider network based on the configuration data. The particular node is different from the host. These techniques allow changes in configuration data to be pushed to provider edge nodes without human intervention.
摘要翻译：用于配置网络接口以支持虚拟专用网络的方法和装置包括在提供商网络上的主计算机上的服务器上存储配置数据。在没有人为干预的情况下确定是否满足条件以将配置数据发送到提供商网络的边缘处的特定节点，而不从特定节点接收到请求消息。如果确定满足条件，则将配置数据发送到特定节点，以使特定节点基于配置数据配置用于通过提供商网络支持虚拟专用网络的特定接口。特定节点与主机不同。这些技术允许配置数据的更改被推送到提供商边缘节点，而无需人为干预。

84. 发明申请

US20070263554A1 Technique for efficiently managing bandwidth registration for multiple spanning tree options 有权
标题翻译：用于有效管理多个生成树选项的带宽注册的技术
公开(公告)号：US20070263554A1
公开(公告)日：2007-11-15
申请号：US11431428
申请日：2006-05-10
申请人： Norman Finn
发明人： Norman Finn
IPC分类号： H04L12/28
CPC分类号： H04L12/4691 , H04L12/462 , H04L12/4641 , H04L45/12 , H04L45/48
摘要： A technique efficiently manages bandwidth (BW) registration for multiple spanning tree options in a computer network. According to the novel technique, an entry bridge determines multiple spanning tree paths to other bridges of the network (namely, one or more available spanning trees rooted at one or more bridges of the network) and determines a utilized (registered) BW on each of those paths. Upon receiving a request to initiate BW registration for a data flow to a destination end point, e.g., from an application source end point, the entry bridge selects one of the spanning tree paths to utilize for the data flow. Selection of the spanning tree path from among the multiple available paths may be based on (i) available bandwidth of the paths, (ii) a shortest of the paths, and (iii) a lowest bridge identifier ID for the bridge root for the path. The entry bridge sends a registration message for the data flow towards the destination end point along the selected spanning tree path. If successful, the data flow is transmitted on the selected path. If not, the entry bridge attempts to register the data flow on a next best alternate spanning tree, e.g., until a successful registration or until a determination that no further alternate spanning trees exist.
摘要翻译：技术有效地管理计算机网络中的多个生成树选项的带宽（BW）注册。根据新颖的技术，入口桥接器确定到网络的其他网桥的多个生成树路径（即，一个或多个根据网络的一个或多个网桥的可用生成树），并确定每个那些路径。在接收到针对目的地端点（例如从应用源端点）的数据流发起BW注册的请求时，入口网桥选择用于数据流的生成树路径之一。从多个可用路径中选择生成树路径可以基于（i）路径的可用带宽，（ii）最短路径，以及（iii）用于路径的桥根的最低桥标识符ID 。入口桥沿着所选择的生成树路径向目的地端点发送数据流的注册消息。如果成功，数据流将在所选路径上传输。如果不是，入口桥将尝试将数据流注册在下一个最佳备用生成树上，例如，直到成功注册或直到确定不存在另外的备用生成树为止。

85. 发明申请

US20070036165A1 Method and Network Element Configured for Limiting the Number of Virtual Local Area Networks Creatable by GVRP 审中-公开
标题翻译：配置了限制GVRP创建的虚拟局域网数量的方法和网元
公开(公告)号：US20070036165A1
公开(公告)日：2007-02-15
申请号：US11459572
申请日：2006-07-24
申请人： Laurence Rose , Roberto Silva
发明人： Laurence Rose , Roberto Silva
IPC分类号： H04L12/56 , H04L12/28
CPC分类号： H04L12/4691 , H04L12/4625 , H04L12/4641 , H04L49/354
摘要： A Layer 2 device configured for providing at least one of bridging and switching functionality in a local area network comprising computer readable instructions for providing GVRP functionality and computer-readable instructions for limiting the number of dynamic VLANs that the GVRP functionality creates on a Layer 2 device of a local area network and on all ports of a data plane card of the Layer 2 device.
摘要翻译：第二层设备，被配置为在局域网中提供桥接和交换功能中的至少一个，包括用于提供GVRP功能的计算机可读指令和用于限制GVRP功能在第2层设备上创建的动态VLAN的数量的计算机可读指令的局域网和二层设备的数据平面卡的所有端口。

86. 发明申请

US20050193385A1 Method and apparatus for upgrading software in network bridges 失效
标题翻译：网桥升级软件的方法和装置
公开(公告)号：US20050193385A1
公开(公告)日：2005-09-01
申请号：US10789966
申请日：2004-02-27
申请人： Arie de Heer , Gert Manhoudt , Erik Tromp , Siebe Warners
发明人： Arie de Heer , Gert Manhoudt , Erik Tromp , Siebe Warners
IPC分类号： G06F9/44 , H04L12/46 , H04L29/06 , H04L29/08
CPC分类号： H04L67/34 , G06F8/65 , H04L12/4641 , H04L12/4691 , H04L63/0272
摘要： Method for upgrading software in a network bridge that is part of a VLAN includes sending notification to other bridges of the VLAN that the bridge is scheduled for upgrading; suspending VLAN registration and membership information in the other bridges while upgrading the bridge; restoring a state of the updated bridge and sending notification to the other bridges that the upgrading has been completed. As a result of the notification, the other bridges do not expect additional messages from the upgrading bridge. The step of restoring a state of the bridge includes synchronizing a GVRP protocol running within the network to a current VLAN membership table. Apparatus includes a forwarding plane adapted to store VLAN membership information and a control plane adapted for issuing and executing instructions that control registration and de-registration of one or more ports of the bridge according to the VLAN membership information and the presented method.
摘要翻译：在作为VLAN的一部分的网桥中升级软件的方法包括向桥上预定升级的VLAN的其他网桥发送通知; 在升级桥梁的同时，在其他桥梁中挂起VLAN注册和会员信息; 恢复更新的桥接器的状态，并向升级完成的其他网桥发送通知。作为通知的结果，其他网桥不期望来自升级网桥的附加消息。恢复桥的状态的步骤包括将在网络内运行的GVRP协议同步到当前的VLAN成员资格表。装置包括适于存储VLAN成员信息的转发平面和适于根据VLAN成员信息和所呈现的方法发布和执行控制网桥的一个或多个端口的注册和取消注册的指令的控制平面。

87. 发明申请

US20050180391A1 Network connection method, network connection system, and, layer 2 switch and management server forming the network connection system 有权
标题翻译：网络连接方式，网络连接系统，以及形成网络连接系统的二层交换机和管理服务器
公开(公告)号：US20050180391A1
公开(公告)日：2005-08-18
申请号：US11087385
申请日：2005-03-23
申请人： Katsumi Shimada
发明人： Katsumi Shimada
IPC分类号： H04L12/28 , H04L12/46 , H04L12/56
CPC分类号： H04L12/4691 , H04L12/4645 , H04L49/354
摘要： In a network connection method for interconnecting a virtual LAN distributed over plural sites via a network formed by plural layer 2 switches, a layer 2 switch monitors a first virtual LAN configuring frame sent from a site in the plural sites for configuring the virtual LAN, a network virtual LAN identifier is assigned based on the monitored first virtual LAN configuring frame, and the layer 2 switch generates a second virtual LAN configuring frame based on the assigned network virtual LAN identifier, and transmits the second virtual LAN configuring frame to the plural layer 2 switches in the network so as to establish the virtual LAN distributed over the plural sites. Accordingly, configuration and operation of a virtual LAN in a network of the layer 2 switches can be performed efficiently according to the virtual LAN tag of the subscriber.
摘要翻译：在通过由多层2交换机形成的网络来互连分散在多个站点上的虚拟LAN进行互连的网络连接方法中，层2交换机监视从多个站点的站点发送的用于配置虚拟LAN的第一虚拟LAN配置帧，基于所监视的第一虚拟LAN配置帧分配网络虚拟LAN标识符，并且第二层交换机基于所分配的网络虚拟LAN标识符生成第二虚拟LAN配置帧，并将第二虚拟LAN配置帧发送到多层2 在网络中切换，以便建立分布在多个站点上的虚拟LAN。因此，可以根据用户的虚拟LAN标签有效地执行层2交换机的网络中的虚拟LAN的配置和操作。

88. 发明申请

US20050180345A1 Mobile virtual LAN 有权
标题翻译：移动虚拟局域网
公开(公告)号：US20050180345A1
公开(公告)日：2005-08-18
申请号：US11017429
申请日：2004-12-20
申请人： Robert Meier
发明人： Robert Meier
IPC分类号： H04L12/28 , H04L12/46 , H04W36/10 , H04W36/12 , H04W80/00 , H04W84/12 , H04L12/56
CPC分类号： H04W80/00 , H04L12/4641 , H04L12/4645 , H04L12/467 , H04L12/4691 , H04W36/10 , H04W36/12 , H04W84/12
摘要： A communication system in which multiple protocols and proxy services are executed by an access point. In one embodiment of the invention, GVRP and GMRP registrations are combined in a single packet when a wireless device roams to a different VLAN. In addition, outbound GVRP and GMRP multicast messages are handled by an access point (also referred to as a GVRP and GMRP “gateway”) such that the wireless device is not burdened with the associated computational overhead. In a further embodiment, a wireless device may dynamically switch between a VLAN-aware state and a VLAN-unaware state depending on the nature of a detected access point. For example, if a relevant access point supports GVRP, the wireless device may operate as a VLAN terminal. If a wireless device is not attached to an access point with a matching VLAN ID, the wireless device sends and receives VLAN tagged frames. If a wireless device configured with a VLAN ID is attached to an access point with a matching VLAN ID, or if the wireless device is attached to a non-VLAN access point, then the wireless device may send and receive raw/untagged frames. In addition to the gateways described below, the ability of a wireless device to detect when it can send untagged frames is considered novel. In another embodiment of the invention, a special ID that is different than the native VLAN ID for a switch port is used for VLAN-unaware devices. This allows such devices that do not issue tagged frames to belong to a single VLAN ID.
摘要翻译：由接入点执行多个协议和代理服务的通信系统。在本发明的一个实施例中，当无线设备漫游到不同的VLAN时，将GVRP和GMRP注册组合在单个分组中。此外，出站GVRP和GMRP组播消息由接入点（也称为GVRP和GMRP“网关”）处理，使得无线设备不负担相关的计算开销。在进一步的实施例中，无线设备可以根据检测到的接入点的性质在VLAN感知状态和VLAN不知情状态之间动态切换。例如，如果相关接入点支持GVRP，则无线设备可以作为VLAN终端运行。如果无线设备未连接到具有匹配VLAN ID的接入点，则无线设备发送和接收VLAN标记的帧。如果配置了VLAN ID的无线设备连接到具有匹配VLAN ID的接入点，或者无线设备连接到非VLAN接入点，则无线设备可以发送和接收原始/未标记帧。除了下面描述的网关之外，无线设备检测何时可以发送未标记的帧的能力被认为是新颖的。在本发明的另一个实施例中，与VLAN交换机端口的本地VLAN ID不同的特殊ID用于VLAN不知情的设备。这允许不发出标记帧的这些设备属于单个VLAN ID。

89. 发明申请

US20040032868A1 LAN switching method and LAN switch 审中-公开
标题翻译： LAN交换方式和LAN交换机
公开(公告)号：US20040032868A1
公开(公告)日：2004-02-19
申请号：US10615720
申请日：2003-07-08
发明人： Sotaro Oda , Atsushi Kitada
IPC分类号： H04L012/56 , H04L012/28
CPC分类号： H04L49/351 , H04L12/4641 , H04L12/4691 , H04L49/354 , H04L49/602
摘要： In a LAN switch capable of recognizing a VLAN, a plurality of paths are associated with a VLAN having a plurality of same members as components, and frames from the members are mapped to a predetermined path selected from among the paths. Also, a plurality of different VLAN's are associated with a single group composed of a plurality of members, and frames from the members are mapped to a predetermined VLAN selected from among the VLAN's. Furthermore, information of a frame is associated with the group to which a member having transmitted the frame belongs, and the received frame is mapped to the group to which the member having transmitted the frame belongs, based on the information of the frame.
摘要翻译：在能够识别VLAN的LAN交换机中，多个路径与具有与组件相同的多个成员的VLAN相关联，来自成员的帧被映射到从路径中选择的预定路径。此外，多个不同的VLAN与由多个成员组成的单个组相关联，并且来自成员的帧被映射到从VLAN中选择的预定VLAN。此外，帧的信息与发送了该帧的成员所属的组相关联，并且基于帧的信息将接收的帧映射到已经发送了该帧的成员所属的组。

90. 发明授权

US06590861B1 Combining virtual local area networks and load balancing with fault tolerance in a high performance protocol 失效
标题翻译：在高性能协议中组合虚拟局域网和负载平衡与容错
公开(公告)号：US06590861B1
公开(公告)日：2003-07-08
申请号：US09272083
申请日：1999-03-18
申请人： RamKrishna Vepa , Roman Baker , Sameer Nanda , James Binder , Thomas Albert Maufer
发明人： RamKrishna Vepa , Roman Baker , Sameer Nanda , James Binder , Thomas Albert Maufer
IPC分类号： H04J116
CPC分类号： H04L47/125 , H04L12/4641 , H04L12/4691 , H04L67/1002 , H04L67/1034 , H04L69/14 , H04L69/32 , H04L69/40 , H04L2029/06054
摘要： A method to send and receive data packets over a network of computer systems (e.g., a plurality of virtual local area networks [VLANs] compliant with the IEEE 802.1Q standard) using a server computer system adapted to have a plurality of network interface cards (NICs) coupled thereto. An outgoing data packet is addressed using a first media access control (MAC) address, wherein the first MAC address is a virtual MAC address representing the plurality of NICs. A NIC is selected from the plurality of NICs using a load balancing scheme. The functionality of the selected NIC is verified using a fault tolerance scheme. The first MAC address in the outgoing data packet is replaced with a second MAC address, wherein the second MAC address represents the selected NIC. The outgoing data packet is then transmitted using the selected NIC. For an incoming data packet received at one of the plurality of NICs, the existing MAC address in the incoming data packet is replaced with the first MAC address. Thus, the present embodiment of the present invention provides a high performance method that supports multiple VLANs and elegantly combines a load balance scheme and a fault tolerance scheme into a software element implemented on a server computer system.
摘要翻译：一种使用适于具有多个网络接口卡的服务器计算机系统通过计算机系统的网络（例如，符合IEEE 802.1Q标准的多个虚拟局域网[VLAN]）发送和接收数据分组的方法（ NIC）。使用第一媒体访问控制（MAC）地址寻址输出数据分组，其中第一MAC地址是表示多个NIC的虚拟MAC地址。使用负载平衡方案从多个NIC中选择NIC。使用容错方案验证所选NIC的功能。输出数据包中的第一个MAC地址被替换为第二个MAC地址，其中第二个MAC地址表示所选择的NIC。然后使用所选择的NIC传输传出的数据分组。对于在多个NIC之一处接收到的输入数据分组，输入数据分组中的现有MAC地址被替换为第一MAC地址。因此，本发明的实施例提供了一种支持多个VLAN的高性能方法，并且将负载平衡方案和容错方案优雅地组合到在服务器计算机系统上实现的软件元素中。

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