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1. 发明授权

US08988984B2 Designated forwarder election for VPLS with BGP-based MAC learning 有权
标题翻译：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
申请人： Pedro Miguel Martins Roque Marques , Ali Sajassi , Samer Salam , Keyur Patel
发明人： Pedro Miguel Martins Roque Marques , Ali Sajassi , Samer Salam , Keyur Patel
IPC分类号： H04L12/26 , H04L12/715 , H04L12/703
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。

2. 发明申请

US20120201124A1 DESIGNATED FORWARDER ELECTION FOR VPLS WITH BGP-BASED MAC LEARNING 有权
标题翻译：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
申请人： Pedro Miguel Martins Roque Marques , Ali Sajassi , Samer Salam , Keyur Patel
发明人： Pedro Miguel Martins Roque Marques , Ali Sajassi , Samer Salam , Keyur Patel
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。

3. 发明申请

US20120177054A1 Managing Active Edge Devices in VPLS Using BGP Signaling 有权
标题翻译：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
申请人： Manas Pati , Samer Salam , Keyur Patel , Ali Sajassi
发明人： Manas Pati , Samer Salam , Keyur Patel , Ali Sajassi
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L45/68 , H04L12/4625 , H04L12/4633 , H04L12/4641 , H04L45/04 , H04L45/24 , H04L45/54
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。

4. 发明申请

US20100315946A1 Failure protection for access ring topology 有权
标题翻译：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
申请人： Samer Salam , Ali Sajassi
发明人： Samer Salam , Ali Sajassi
IPC分类号： H04L1/00 , H04L12/26 , H04L12/28
CPC分类号： H04L45/28 , H04L12/437 , H04L12/4641 , H04L45/50 , H04L45/68
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。

5. 发明授权

US08880656B2 Customer edge device auto-configuration 有权
标题翻译：客户边缘设备自动配置
公开(公告)号：US08880656B2
公开(公告)日：2014-11-04
申请号：US12464688
申请日：2009-05-12
申请人： Samer Salam , Wojciech Dec , Dennis Clare , Richard Manfred Pruss , Frank Brockners
发明人： Samer Salam , Wojciech Dec , Dennis Clare , Richard Manfred Pruss , Frank Brockners
IPC分类号： G06F15/177 , H04L12/46
CPC分类号： H04L12/4641
摘要： A customer edge device is automatically configured. A request for customer edge device configuration data may be transmitted to a provider edge device via an Ethernet-layer operations, administration, maintenance, and provisioning (OAM&P) protocol. The request for configuration data may be relayed from the Ethernet-layer OAM&P protocol to a configuration protocol. The request for configuration data may be transmitted from the provider edge device to a configuration repository server via the configuration protocol. The configuration repository server may transmit the requested configuration data to the provider edge device via the configuration protocol. The provider edge device may relay the configuration data from the configuration protocol to the Ethernet-layer OAM&P protocol and transmit the configuration data to a customer edge device via the Ethernet-layer OAM&P protocol. The customer edge device may automatically configure itself using the configuration data.
摘要翻译：自动配置客户边缘设备。客户边缘设备配置数据的请求可以经由以太网层操作，管理，维护和供应（OAM＆P）协议传送到提供商边缘设备。配置数据的请求可以从以太网层OAM＆P协议中继到配置协议。配置数据的请求可以经由配置协议从提供商边缘设备发送到配置库服务器。配置存储库服务器可以经由配置协议将所请求的配置数据发送到提供商边缘设备。提供商边缘设备可以将配置数据从配置协议中继到以太网层OAM＆P协议，并通过以太网层OAM＆P协议将配置数据传输到客户边缘设备。客户边缘设备可以使用配置数据自动配置自身。

6. 发明授权

US08650285B1 Prevention of looping and duplicate frame delivery in a network environment 有权
标题翻译：在网络环境中防止循环和重复的帧传送
公开(公告)号：US08650285B1
公开(公告)日：2014-02-11
申请号：US13069249
申请日：2011-03-22
申请人： Ali Sajassi , Samer Salam
发明人： Ali Sajassi , Samer Salam
IPC分类号： G06F15/173
CPC分类号： H04L45/586 , H04L45/16 , H04L45/18 , H04L45/50
摘要： A first multicast data packet can be received by a particular edge node, forwarded from another network element in a network, the first packet including data received from a particular device interfacing with the network through a first edge node. The first packet is multicast by the first edge node. The particular edge node is included in a redundancy group including at least one other edge node. The first multicast data packet is examined to identify a first hint corresponding to the particular device. In response to identifying the particular device, it is determined that the particular edge node does not interface with the particular device. It is further determined that the particular edge node is designated as a forwarding node for the redundancy group. Based on these determinations, the first packet is forwarded by the particular edge node while preventing looping and duplicate packet delivery.
摘要翻译：第一组播数据分组可以由特定边缘节点接收，从网络中的另一网络元件转发，第一分组包括从通过第一边缘节点与网络接口的特定设备接收的数据。第一个分组由第一个边缘节点组播。特定边缘节点包括在包括至少一个其他边缘节点的冗余组中。检查第一组播数据分组以识别与特定设备相对应的第一提示。响应于识别特定设备，确定特定边缘节点不与特定设备接口。进一步确定特定边缘节点被指定为冗余组的转发节点。基于这些确定，第一分组由特定边缘节点转发，同时防止循环和重复分组传送。

7. 发明申请

US20130308646A1 ENABLING MEDIA ACCESS CONTROL ADDRESS MOBILITY IN AN ETHERNET VIRTUAL PRIVATE NETWORK 有权
标题翻译：启用媒体访问控制地址在以太网虚拟私有网络中的移动性
公开(公告)号：US20130308646A1
公开(公告)日：2013-11-21
申请号：US13471724
申请日：2012-05-15
申请人： Ali Sajassi , Samer Salam , Keyur Patel
发明人： Ali Sajassi , Samer Salam , Keyur Patel
IPC分类号： H04L12/56
CPC分类号： H04L45/66 , H04L45/04 , H04L45/50 , H04L61/6022
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。

8. 发明授权

US08400929B2 Ethernet performance monitoring 有权
标题翻译：以太网性能监控
公开(公告)号：US08400929B2
公开(公告)日：2013-03-19
申请号：US13116607
申请日：2011-05-26
申请人： Vishnu Kant Varma , Wenwei Weng , Samer Salam , Lio Cheng
发明人： Vishnu Kant Varma , Wenwei Weng , Samer Salam , Lio Cheng
IPC分类号： G06F11/00 , H04J3/14 , H04J3/06 , H04L12/28
CPC分类号： H04L43/50 , H04L12/413 , H04L41/0213 , H04L43/106 , H04L43/12 , H04L45/60
摘要： One embodiment is a source router that monitors the performance of an Ethernet network. The source router generates an Ethernet connectivity check request frame that includes a transmission timestamp, and transmits the Ethernet connectivity check request frame to a destination router. The source router receives a reply from the destination router that is transmitted in response to receiving the Ethernet connectivity check request frame and determines a round trip time between the source router and the destination router based on a time of receipt of the reply and the transmission timestamp.
摘要翻译：一个实施例是监视以太网网络的性能的源路由器。源路由器生成包含传输时间戳的以太网连接检查请求帧，并将以太网连接检查请求帧发送到目的路由器。源路由器接收来自目的地路由器的响应于响应于接收到以太网连接性检查请求帧而被发送的应答，并且基于接收回复的时间和传输时间戳确定源路由器与目的地路由器之间的往返时间。

9. 发明申请

US20120014261A1 Monitoring A Flow Set To Detect Faults 有权
标题翻译：监控流量集以检测故障
公开(公告)号：US20120014261A1
公开(公告)日：2012-01-19
申请号：US12835777
申请日：2010-07-14
申请人： Samer Salam , Ali Sajassi
发明人： Samer Salam , Ali Sajassi
IPC分类号： H04L12/26
CPC分类号： H04L43/10 , H04L43/026 , H04L43/0811
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。

10. 发明申请

US20110228679A1 ETHERNET PERFORMANCE MONITORING 有权
标题翻译：以太网性能监控
公开(公告)号：US20110228679A1
公开(公告)日：2011-09-22
申请号：US13116607
申请日：2011-05-26
申请人： Vishnu Kant Varma , Wenwei Weng , Samer Salam , Lio Cheng
发明人： Vishnu Kant Varma , Wenwei Weng , Samer Salam , Lio Cheng
IPC分类号： H04L12/26
CPC分类号： H04L43/50 , H04L12/413 , H04L41/0213 , H04L43/106 , H04L43/12 , H04L45/60
摘要： One embodiment is a source router that monitors the performance of an Ethernet network. The source router generates an Ethernet connectivity check request frame that includes a transmission timestamp, and transmits the Ethernet connectivity check request frame to a destination router. The source router receives a reply from the destination router that is transmitted in response to receiving the Ethernet connectivity check request frame and determines a round trip time between the source router and the destination router based on a time of receipt of the reply and the transmission timestamp.
摘要翻译：一个实施例是监视以太网网络的性能的源路由器。源路由器生成包含传输时间戳的以太网连接检查请求帧，并将以太网连接检查请求帧发送到目的路由器。源路由器接收来自目的地路由器的响应于响应于接收到以太网连接性检查请求帧而被发送的应答，并且基于接收回复的时间和传输时间戳确定源路由器与目的地路由器之间的往返时间。

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