Designated forwarder election for VPLS with BGP-based MAC learning
    1.
    发明授权
    Designated forwarder election for VPLS with BGP-based MAC learning 有权
    基于BGP的MAC学习的VPLS指定的转发器选举

    公开(公告)号:US08988984B2

    公开(公告)日:2015-03-24

    申请号:US13021530

    申请日:2011-02-04

    CPC分类号: H04L45/04 H04L45/28

    摘要: In one embodiment, a network device may participate in an election process to elect one of two or more Provider Edge devices of a Redundancy Group to be a Designated Forwarder for the Redundancy Group, where the Redundancy Group is in a Service Provider network, and where the Redundancy Group serves a Customer Edge device of a customer network. The network device may forward multi-destination traffic to the Customer Edge device according to whether the network device is elected to be the Designated Forwarder for the Redundancy Group. Multi-destination traffic may include multicast traffic, broadcast traffic, or destination unknown unicast traffic.

    摘要翻译: 在一个实施例中,网络设备可以参与选举过程,以选择冗余组的两个或更多个提供者边缘设备之一作为冗余组的指定转发器,其中冗余组在服务提供商网络中,并且其中 冗余组为客户网络的客户端设备提供服务。 根据网络设备是否被选为冗余组的指定转发器,网络设备可以将多目标流量转发到客户边缘设备。 多目标流量可以包括多播流量,广播流量或目的地未知单播流量。

    DESIGNATED FORWARDER ELECTION FOR VPLS WITH BGP-BASED MAC LEARNING
    2.
    发明申请
    DESIGNATED FORWARDER ELECTION FOR VPLS WITH BGP-BASED MAC LEARNING 有权
    用于基于BGP的MAC学习的VPLS的指定前向选择

    公开(公告)号:US20120201124A1

    公开(公告)日:2012-08-09

    申请号:US13021530

    申请日:2011-02-04

    IPC分类号: H04L12/56

    CPC分类号: H04L45/04 H04L45/28

    摘要: In one embodiment, a network device may participate in an election process to elect one of two or more Provider Edge devices of a Redundancy Group to be a Designated Forwarder for the Redundancy Group, where the Redundancy Group is in a Service Provider network, and where the Redundancy Group serves a Customer Edge device of a customer network. The network device may forward multi-destination traffic to the Customer Edge device according to whether the network device is elected to be the Designated Forwarder for the Redundancy Group. Multi-destination traffic may include multicast traffic, broadcast traffic, or destination unknown unicast traffic.

    摘要翻译: 在一个实施例中,网络设备可以参与选举过程,以选择冗余组的两个或更多个提供者边缘设备之一作为冗余组的指定转发器,其中冗余组在服务提供商网络中,以及其中 冗余组为客户网络的客户端设备提供服务。 根据网络设备是否被选为冗余组的指定转发器,网络设备可以将多目标流量转发到客户边缘设备。 多目标流量可以包括多播流量,广播流量或目的地未知单播流量。

    Managing Active Edge Devices in VPLS Using BGP Signaling
    3.
    发明申请
    Managing Active Edge Devices in VPLS Using BGP Signaling 有权
    使用BGP信令管理VPLS中的主动边缘设备

    公开(公告)号:US20120177054A1

    公开(公告)日:2012-07-12

    申请号:US12987815

    申请日:2011-01-10

    IPC分类号: H04L12/28 H04L12/56

    摘要: In one embodiment, a method includes establishing in a Virtual Private Local Area Network (LAN) Service (VPLS) over Multi-Protocol Label Switching (MPLS) network a floating pseudowire between a first provider edge router and a redundancy group having a plurality of provider edge routers each configured to forward data toward a external device. Each provider edge router in the redundancy group is configured to maintain an active link to the external device. A provider edge router that is not a member of the redundancy group sends data directed to the external device through the floating pseudowire. Only one provider edge router in the redundancy group receives and forwards the particular data to the external device.

    摘要翻译: 在一个实施例中,一种方法包括在通过多协议标签交换(MPLS)网络的虚拟专用局域网(LAN)服务(VPLS)中建立第一供应商边缘路由器与具有多个提供商的冗余组之间的浮动伪线 每个边缘路由器配置为向外部设备转发数据。 冗余组中的每个提供商边缘路由器被配置为维持到外部设备的活动链路。 不是冗余组成员的提供商边缘路由器通过浮动伪线发送定向到外部设备的数据。 冗余组中只有一个提供商边缘路由器接收并将特定数据转发到外部设备。

    Failure protection for access ring topology
    4.
    发明申请
    Failure protection for access ring topology 有权
    接入环拓扑失效保护

    公开(公告)号:US20100315946A1

    公开(公告)日:2010-12-16

    申请号:US12456100

    申请日:2009-06-10

    IPC分类号: H04L1/00 H04L12/26 H04L12/28

    摘要: In one embodiment, a method includes configuring a first node, located at an edge of a core network and connected to an access ring, with a maintenance end point for a virtual local area network on a port connecting the first node to the access ring. The first node operates in an active mode for the virtual local area network and is in communication with a second node located at the edge of the core network and connected to the access ring. The method further includes receiving and processing at a processor at the first node, continuity check messages from access nodes on the access ring, synchronizing the first node with the second node, and communicating from the first node to the second node to initiate switching of the second node from a backup mode to the active mode for the virtual local area network upon identification of a failure.

    摘要翻译: 在一个实施例中,一种方法包括在连接第一节点到接入环的端口上配置位于核心网的边缘并连接到接入环的第一节点,其具有用于虚拟局域网的维护端点。 第一节点以虚拟局域网的活动模式运行,并且与位于核心网络边缘并连接到接入环的第二节点进行通信。 该方法还包括在第一节点处的处理器处接收和处理来自接入环上的接入节点的连续性检查消息,使第一节点与第二节点同步,以及从第一节点到第二节点的通信,以启动 第二节点从备份模式到虚拟局域网的活动模式。

    Enabling media access control address mobility in an ethernet virtual private network
    5.
    发明授权
    Enabling media access control address mobility in an ethernet virtual private network 有权
    在以太网虚拟专用网络中启用媒体访问控制地址移动性

    公开(公告)号:US08842577B2

    公开(公告)日:2014-09-23

    申请号:US13471724

    申请日:2012-05-15

    IPC分类号: H04L12/28

    摘要: In one embodiment, a method includes obtaining an indication that a device is attached to a provider edge. The device has a media access control (MAC) address, wherein the device was previously attached to a first provider edge (PE) of a Multiprotocol Label Switching (MPLS) network. The method also includes issuing a first advertisement that identifies the MAC address. The first advertisement includes a first MAC address mobility attribute arranged to indicate a number of times the MAC address has moved with respect to the MPLS network.

    摘要翻译: 在一个实施例中,一种方法包括获得设备附接到提供商边缘的指示。 该设备具有媒体访问控制(MAC)地址,其中该设备先前连接到多协议标签交换(MPLS)网络的第一提供商边缘(PE)。 该方法还包括发出标识MAC地址的第一广告。 第一广告包括被配置为指示MAC地址相对于MPLS网络移动的次数的第一MAC地址移动性属性。

    Transmitting network information using link or port aggregation protocols
    6.
    发明授权
    Transmitting network information using link or port aggregation protocols 有权
    使用链路或端口聚合协议传输网络信息

    公开(公告)号:US08839023B2

    公开(公告)日:2014-09-16

    申请号:US12932947

    申请日:2011-03-10

    摘要: In one embodiment, a method includes receiving at a network device, a packet from a component in a virtual network device, the packet transmitted across a link aggregation bundle connecting the virtual network device to the network device and indicating if the component is a master component in the virtual network device, and determining if an error exists in operation of the component as the master component or a slave component. An apparatus for assigning services to physical links in an aggregated link bundle is also disclosed.

    摘要翻译: 在一个实施例中,一种方法包括在网络设备处接收来自虚拟网络设备中的组件的分组,所述分组通过连接所述虚拟网络设备到所述网络设备的链路聚合束传输并指示所述组件是否为主组件 在虚拟网络设备中,并且确定作为主组件或从组件的组件的操作中是否存在错误。 还公开了一种用于向聚合链路束中的物理链路分配业务的装置。

    Failure protection for access ring topology
    7.
    发明授权
    Failure protection for access ring topology 有权
    接入环拓扑失效保护

    公开(公告)号:US08724449B2

    公开(公告)日:2014-05-13

    申请号:US12456100

    申请日:2009-06-10

    IPC分类号: H04L12/28 H04L12/56

    摘要: In one embodiment, a method includes configuring a first node, located at an edge of a core network and connected to an access ring, with a maintenance end point for a virtual local area network on a port connecting the first node to the access ring. The first node operates in an active mode for the virtual local area network and is in communication with a second node located at the edge of the core network and connected to the access ring. The method further includes receiving and processing at a processor at the first node, continuity check messages from access nodes on the access ring, synchronizing the first node with the second node, and communicating from the first node to the second node to initiate switching of the second node from a backup mode to the active mode for the virtual local area network upon identification of a failure.

    摘要翻译: 在一个实施例中,一种方法包括在连接第一节点到接入环的端口上配置位于核心网的边缘并连接到接入环的第一节点,其具有用于虚拟局域网的维护端点。 第一节点以虚拟局域网的活动模式运行,并且与位于核心网络边缘并连接到接入环的第二节点进行通信。 该方法还包括在第一节点处的处理器处接收和处理来自接入环上的接入节点的连续性检查消息,使第一节点与第二节点同步,以及从第一节点到第二节点的通信,以启动 第二节点从备份模式到虚拟局域网的活动模式。

    Monitoring a flow set to detect faults
    8.
    发明授权
    Monitoring a flow set to detect faults 有权
    监控流量集以检测故障

    公开(公告)号:US08588081B2

    公开(公告)日:2013-11-19

    申请号:US12835777

    申请日:2010-07-14

    IPC分类号: H04L1/00 H04L12/26

    摘要: In certain embodiments, monitoring a flow set to detect faults includes identifying, by a first maintenance end point, a flow set comprising flows that utilize a paths from the first maintenance end point through one or more intermediate nodes to a second maintenance end point. Continuity check messages are generated. Each continuity check message is formatted as a data packet that an intermediate node forwards. Each continuity check message comprises a header comprising a maintenance indicator. The continuity check messages are transmitted on the flows to allow the second maintenance end point to monitor the paths.

    摘要翻译: 在某些实施例中,监视流程集以检测故障包括由第一维护终点识别包括利用从第一维护终点通过一个或多个中间节点到第二维护终点的路径的流的流集合。 生成连续性检查消息。 每个连续性检查消息被格式化为中间节点转发的数据包。 每个连续性检查消息包括包括维护指示符的报头。 连续性检查消息在流上传输,以允许第二维护终点监视路径。

    Transmitting network information using link or port aggregation protocols
    9.
    发明申请
    Transmitting network information using link or port aggregation protocols 有权
    使用链路或端口聚合协议传输网络信息

    公开(公告)号:US20120233492A1

    公开(公告)日:2012-09-13

    申请号:US12932947

    申请日:2011-03-10

    IPC分类号: G06F11/20 G06F11/07 H04L12/28

    摘要: In one embodiment, a method includes receiving at a network device, a packet from a component in a virtual network device, the packet transmitted across a link aggregation bundle connecting the virtual network device to the network device and indicating if the component is a master component in the virtual network device, and determining if an error exists in operation of the component as the master component or a slave component. An apparatus for assigning services to physical links in an aggregated link bundle is also disclosed.

    摘要翻译: 在一个实施例中,一种方法包括在网络设备处接收来自虚拟网络设备中的组件的分组,所述分组通过连接所述虚拟网络设备到所述网络设备的链路聚合束传输并指示所述组件是否为主组件 在虚拟网络设备中,并且确定作为主组件或从组件的组件的操作中是否存在错误。 还公开了一种用于向聚合链路束中的物理链路分配业务的装置。

    Virtual private LAN service networks with mixed mode network devices
    10.
    发明授权
    Virtual private LAN service networks with mixed mode network devices 有权
    具有混合模式网络设备的虚拟专用LAN服务网络

    公开(公告)号:US07697534B1

    公开(公告)日:2010-04-13

    申请号:US12148340

    申请日:2008-04-18

    IPC分类号: H04L12/56

    摘要: In one embodiment, a method generally includes identifying at a local Virtual Private LAN Service Provider Edge (VPLS PE) device whether remote VPLS PE devices are configured for operation as a Provider Backbone Bridge (PBB), negotiating pseudowire connections with the remote VPLS PE devices based on identification of the remote VPLS PE device configuration, receiving a frame destined for one of the remote VPLS PE devices, and transmitting the frame in a format compatible with the remote VPLS PE device. The local VPLS PE is configured for operation as a PBB and at least one of the remote VPLS PE devices is not configured for operation as a PBB. An apparatus for use in mixed mode VPLS network is also disclosed.

    摘要翻译: 在一个实施例中,一种方法通常包括在本地虚拟专用LAN服务提供商边缘(VPLS PE)设备处识别远端VPLS PE设备是否配置为作为提供商骨干桥(PBB)进行操作,与远程VPLS PE设备协商伪线连接 基于远程VPLS PE设备配置的识别,接收目的地为远程VPLS PE设备之一的帧,并以与远程VPLS PE设备兼容的格式发送帧。 本地VPLS PE配置为PBB操作,至少有一个远程VPLS PE设备未配置为作为PBB操作。 还公开了一种用于混合模式VPLS网络的装置。