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21. 发明授权

US08839023B2 Transmitting network information using link or port aggregation protocols 有权
标题翻译：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
申请人： Norman Finn , Samer Salam , Ali Sajassi
发明人： Norman Finn , Samer Salam , Ali Sajassi
IPC分类号： G06F11/00 , H04L12/713 , H04L12/709 , H04L12/751
CPC分类号： H04L45/586 , H04L45/026 , H04L45/245 , Y02D50/30
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。

22. 发明授权

US08724449B2 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：US08724449B2
公开(公告)日：2014-05-13
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： H04L12/28 , H04L12/56
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。

23. 发明授权

US08588081B2 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：US08588081B2
公开(公告)日：2013-11-19
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： H04L1/00 , 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。

24. 发明授权

US08503329B2 Signaling of attachment circuit status and automatic discovery of inter-chassis communication peers 有权
公开(公告)号：US08503329B2
公开(公告)日：2013-08-06
申请号：US12536427
申请日：2009-08-05
申请人： John J. Mullooly , Ali Sajassi , Pradosh K. Mohapatra , Samer M. Salam
发明人： John J. Mullooly , Ali Sajassi , Pradosh K. Mohapatra , Samer M. Salam
IPC分类号： H04L12/28
CPC分类号： H04L49/15 , H04L45/04 , H04L45/58
摘要： In an embodiment, a method of signaling status at a routing device is provided. In this method, the routing device establishes an inter-chassis control plane channel session with a remote routing device. Here, the routing device and the remote routing device are linked to a multi-homed routing device. The routing device then synchronizes with the remote routing device by way of the inter-chassis control plane channel session to identify a state of a link from the routing device to the multi-homed routing device. The state of the link is thereafter advertised by way of Border Gateway Protocol (BGP). Additionally, a method of discovering inter-chassis communication peers via BGP between the first and remote routing devices is provided.

25. 发明申请

US20120233492A1 Transmitting network information using link or port aggregation protocols 有权
标题翻译：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
申请人： Norman Finn , Samer Salam , Ali Sajassi
发明人： Norman Finn , Samer Salam , Ali Sajassi
IPC分类号： G06F11/20 , G06F11/07 , H04L12/28
CPC分类号： H04L45/586 , H04L45/026 , H04L45/245 , Y02D50/30
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。

26. 发明授权

US08077709B2 Redundancy at a virtual provider edge node that faces a tunneling protocol core network for virtual private local area network (LAN) service (VPLS) 有权
标题翻译：面向虚拟专用局域网（LAN）业务（VPLS）的隧道协议核心网的虚拟提供商边缘节点的冗余
公开(公告)号：US08077709B2
公开(公告)日：2011-12-13
申请号：US11857711
申请日：2007-09-19
申请人： Dezhong Cai , Ali Sajassi , Roberto Kobo
发明人： Dezhong Cai , Ali Sajassi , Roberto Kobo
IPC分类号： H04L12/28 , H04L12/56 , H04L12/66
CPC分类号： H04L45/00 , H04L12/4641 , H04L45/48 , H04L45/50 , H04L45/66
摘要： In one embodiment, a method includes receiving configuration data at a particular node of a first set of multiple nodes. The configuration data includes data that indicates a particular zero or more instances for which the particular node is primary among multiple virtual local area network (VLAN) instances to be forwarded. It is determined whether a VLAN indicated in a data packet received at the particular node is included in the particular instances for which the particular node is primary. If so, then the data packet is forwarded. In another embodiment, multiple nodes are configured to perform as a single virtual node, and the single virtual node is configured to forward data packets for the multiple VLAN.
摘要翻译：在一个实施例中，一种方法包括在第一组多个节点的特定节点处接收配置数据。配置数据包括指示要转发的多个虚拟局域网（VLAN）实例中特定节点为主要特定零个或多个实例的数据。确定在特定节点处接收到的数据分组中指示的VLAN是否包括在特定节点是主节点的特定实例中。如果是，则转发数据包。在另一个实施例中，多个节点被配置为执行单个虚拟节点，并且单个虚拟节点被配置为转发用于多个VLAN的数据分组。

27. 发明授权

US07903676B2 Transportation of IEEE 802.1ah frames over multiprotocol label switching pseudowires for virtual private LAN services 有权
标题翻译：通过虚拟专用LAN服务的多协议标签交换伪线传输IEEE 802.1ah帧
公开(公告)号：US07903676B2
公开(公告)日：2011-03-08
申请号：US12025998
申请日：2008-02-05
申请人： Ali Sajassi , Samer M Salam , Christopher Y. Metz
发明人： Ali Sajassi , Samer M Salam , Christopher Y. Metz
IPC分类号： H04L12/28
CPC分类号： H04L12/4658 , H04L12/4662 , H04L45/50 , H04L45/68
摘要： Disclosed are, inter alia, methods, apparatus, computer-storage media, mechanisms, and means for transportation of IEEE 802.1ah frames over Multiprotocol Label Switching (MPLS) pseudowires for Virtual Private LAN Services (VPLS). The IEEE 802.1ah frames include a corresponding B-VLAN tag, while the MPLS packets including these frames do not include the corresponding B-VLAN tag, and disclosed are methods and apparatus for performing such translation.
摘要翻译：公开了用于通过用于虚拟专用LAN服务（VPLS）的多协议标签交换（MPLS）伪线传输IEEE 802.1ah帧的方法，装置，计算机存储介质，机制和装置。 IEEE 802.1ah帧包括对应的B-VLAN标签，而包括这些帧的MPLS分组不包括相应的B-VLAN标签，并且公开了用于执行这种转换的方法和装置。

28. 发明申请

US20110032945A1 SIGNALING OF ATTACHMENT CIRCUIT STATUS AND AUTOMATIC DISCOVERY OF INTER-CHASSIS COMMUNICATION PEERS 有权
标题翻译：附件电路状态信号和内部通信对等体的自动发现
公开(公告)号：US20110032945A1
公开(公告)日：2011-02-10
申请号：US12536427
申请日：2009-08-05
申请人： John Joseph Mullooly , Ali Sajassi , Pradosh Kumar Mohapatra , Samer M. Salam
发明人： John Joseph Mullooly , Ali Sajassi , Pradosh Kumar Mohapatra , Samer M. Salam
IPC分类号： H04L12/56
CPC分类号： H04L49/15 , H04L45/04 , H04L45/58
摘要： In an embodiment, a method of signaling status at a routing device is provided. In this method, the routing device establishes an inter-chassis control plane channel session with a remote routing device. Here, the routing device and the remote routing device are linked to a multi-homed routing device. The routing device then synchronizes with the remote routing device by way of the inter-chassis control plane channel session to identify a state of a link from the routing device to the multi-homed routing device. The state of the link is thereafter advertised by way of Border Gateway Protocol (BGP). Additionally, a method of discovering inter-chassis communication peers via BGP between the first and remote routing devices is provided.
摘要翻译：在一个实施例中，提供了一种在路由设备处发信号通知状态的方法。在该方法中，路由设备与远程路由设备建立机柜间控制平面信道会话。这里，路由设备和远程路由设备链接到多宿主路由设备。然后，路由设备通过机架间控制平面信道会话与远程路由设备同步，以识别从路由设备到多归属路由设备的链路的状态。之后通过边界网关协议（BGP）通告链路的状态。另外，提供了一种通过第一和远程路由设备之间的BGP发现机架间通信对等体的方法。

29. 发明授权

US07839800B2 Multiple I-service registration protocol (MIRP) 有权
标题翻译：多个I-service注册协议（MIRP）
公开(公告)号：US07839800B2
公开(公告)日：2010-11-23
申请号：US12218169
申请日：2008-07-11
申请人： Norman W. Finn , Francois E. Tallet , Ali Sajassi
发明人： Norman W. Finn , Francois E. Tallet , Ali Sajassi
IPC分类号： H04L12/28
CPC分类号： H04L12/4662 , H04L12/2878 , H04L12/4687 , H04L45/48 , H04L45/66
摘要： In one embodiment, a method associated with a multiple I-service registration protocol (MIRP) includes receiving into an 802.1ah I-component an MVRP TCN from an 802.1ad component. The TCN may be received, for example, from an 802.1ad bridge. The TCN may identify an affected service using an S-VID. Therefore, the example method may include identifying the S-VID specified by the TCN. The method may also include identifying I-SIDs related to the S-VID. The I-SIDs may be identified by consulting an S-VID to I-SID translation table associated with the 802.1ah I-component. The method may also include providing an 802.1ah MIRP PDU to another 802.1ah component. The MIRP PDU may be based on the MVRP TCN and on the I-SID.
摘要翻译：在一个实施例中，与多个I服务注册协议（MIRP）相关联的方法包括从802.1ad组件向802.1ah I组件接收MVRP TCN。 TCN可以例如从802.1ad桥接收。 TCN可以使用S-VID来识别受影响的服务。因此，示例性方法可以包括识别由TCN指定的S-VID。该方法还可以包括识别与S-VID相关的I-SID。可以通过咨询与802.1ah I组件相关联的S-VID到I-SID转换表来识别I-SID。该方法还可以包括向另一个802.1ah组件提供802.1ah MIRP PDU。 MIRP PDU可以基于MVRP TCN和I-SID。

30. 发明授权

US07715310B1 L2VPN redundancy with ethernet access domain 有权
标题翻译：具有以太网接入域的L2VPN冗余
公开(公告)号：US07715310B1
公开(公告)日：2010-05-11
申请号：US10857716
申请日：2004-05-28
申请人： Ali Sajassi , Eric Voit
发明人： Ali Sajassi , Eric Voit
IPC分类号： H04L1/00 , H04L12/26 , G06F15/173
CPC分类号： H04L1/22 , H04L41/0659
摘要： Redundancy for Virtual Private Network (VPN) service with an Ethernet access network is provided by a full-mesh of dedicated pseudowires connected among the network-facing provider edge (n-PE) devices, each of which is associated with the same Ethernet access network. A provider Bridge Protocol Data Unit (BPDU) generated by a provider bridge node in the Ethernet access network and received at an input interface of one n-PE device is relayed (without being processed) to all other n-PEs associated with that access network over the full-mesh of dedicated pseudowires. 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.
摘要翻译：使用以太网接入网络进行虚拟专用网（VPN）业务的冗余由面向网络的提供商边缘（n-PE）设备之间连接的全网状专用伪线提供，每个专用网络与相同的以太网接入网络。由以太网接入网络中的提供商网桥节点生成并在一个n-PE设备的输入接口处接收的提供商桥接协议数据单元（BPDU）被中继（而不被处理）到与该接入网络相关联的所有其他n-PE 超过专用伪线的全网格。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。

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