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1. 发明授权

US08761048B2 Managing hierarchical ethernet segments 有权
标题翻译：管理分层以太网段
公开(公告)号：US08761048B2
公开(公告)日：2014-06-24
申请号：US13471676
申请日：2012-05-15
申请人： Ali Sajassi , Samer Salam , Sami Boutros
发明人： Ali Sajassi , Samer Salam , Sami Boutros
IPC分类号： H04L12/28 , H04L12/24 , H04L29/12
CPC分类号： H04L41/12 , H04L29/12066 , H04L45/02 , H04L45/04 , H04L45/50 , H04L61/1511
摘要： In one embodiment, a method includes determining when a predetermined period of time has elapsed, and determining whether at least a first message has been obtained on a first port of a node during the predetermined period of time when it is determined that the predetermined period of time has elapsed. The method also includes identifying the first port as being connected to a single-homed site when it is determined that the at least first message has not been obtained on the first port during the predetermined period of time. The first port is identified as being connected to a multi-homed network, a multi-homed device, or a hierarchical Ethernet segment when it is determined that the at least first message has been obtained on the first port during the predetermined period of time.
摘要翻译：在一个实施例中，一种方法包括确定何时经过了预定的时间段，并且在确定在预定时间段的预定时间段内，确定在节点的第一端口上是否已经获得了至少第一消息时间已经过去了该方法还包括当在预定时间段内确定在第一端口上尚未获得至少第一消息时，将第一端口识别为连接到单个归属站点。当在预定时间段内确定已经在第一端口上获得了至少第一消息时，第一端口被识别为连接到多归属网络，多归属设备或分层以太网段。

2. 发明申请

US20130254359A1 ADDRESS RESOLUTION SUPPRESSION FOR DATA CENTER INTERCONNECT 有权
标题翻译：数据中心互连地址解析抑制
公开(公告)号：US20130254359A1
公开(公告)日：2013-09-26
申请号：US13428436
申请日：2012-03-23
申请人： Sami Boutros , Samer Salam , Ali Sajassi , Clarence Filsfils
发明人： Sami Boutros , Samer Salam , Ali Sajassi , Clarence Filsfils
IPC分类号： G06F15/173
CPC分类号： H04L61/103 , H04L61/6009
摘要： An example method is provided that includes determining whether an address resolution protocol reply from a local machine has been received at an edge node; updating a local cache based on the reply from the local machine; and sending the reply to a plurality of edge nodes through a data plane of a data center interconnect. In more specific implementations, the method can include determining whether an address resolution protocol request has been received from the local machine. The method could also include updating a local machine cache based on the request. In certain implementations, the method can include determining whether the request is targeting the local machine; and dropping the request if the request is targeting the local machine. The method could also include sending the request through the data center interconnect if the request is not targeting the local machine.
摘要翻译：提供了一种示例性方法，其包括确定在边缘节点处是否已经接收到来自本地机器的地址解析协议应答; 根据本地机器的回复更新本地缓存; 并通过数据中心互连的数据平面将答复发送到多个边缘节点。在更具体的实现中，该方法可以包括确定是否已经从本地机器接收到地址解析协议请求。该方法还可以包括基于该请求更新本地机器缓存。在某些实现中，该方法可以包括确定请求是否针对本地机器; 如果请求针对本地机器，则删除该请求。该方法还可以包括如果请求不针对本地机器，则通过数据中心互连发送请求。

3. 发明申请

US20130148657A1 MECHANISM FOR E-VPN INTEROPERABILITY WITH VPLS 有权
标题翻译：用于VPLS的E-VPN互操作性的机制
公开(公告)号：US20130148657A1
公开(公告)日：2013-06-13
申请号：US13313968
申请日：2011-12-07
申请人： Samer Salam , Ali Sajassi , Sami Boutros
发明人： Samer Salam , Ali Sajassi , Sami Boutros
IPC分类号： H04L12/56
CPC分类号： H04L45/68 , H04L12/4641 , H04L45/66
摘要： In one embodiment, a network device in a set of network devices obtains a pseudowire label for a Provider Edge (PE) device, where the pseudowire label corresponds to a Virtual Local Area Network (VLAN) on the PE device. In addition, the network device obtains a set of one or more MAC addresses reachable via the PE device, wherein the set of network devices support Ethernet Virtual Private Network (E-VPN) and are in the same redundancy group such that the set of network devices are coupled to the same customer edge device. The network device stores the pseudowire label in association with the set of one or more MAC addresses. The network device uses the pseudowire label to encapsulate traffic associated with the VLAN that is received from the customer edge device and destined to the set of MAC addresses reachable via the PE device.
摘要翻译：在一个实施例中，一组网络设备中的网络设备获得用于提供商边缘（PE）设备的伪线标签，其中伪线标签对应于PE设备上的虚拟局域网（VLAN）。另外，网络设备获得通过PE设备可达到的一个或多个MAC地址的集合，其中该组网络设备支持以太网虚拟专用网（E-VPN），并且处于相同的冗余组中，使得该组网络设备耦合到相同的客户边缘设备。网络设备将伪线标签与一组或多个MAC地址相关联地存储。网络设备使用伪线标签封装与客户边缘设备接收到的VLAN相关联的流量，并发往可通过PE设备到达的一组MAC地址。

4. 发明授权

US09548959B2 Address resolution suppression for data center interconnect 有权
标题翻译：数据中心互连的地址分辨率抑制
公开(公告)号：US09548959B2
公开(公告)日：2017-01-17
申请号：US13428436
申请日：2012-03-23
申请人： Sami Boutros , Samer Salam , Ali Sajassi , Clarence Filsfils
发明人： Sami Boutros , Samer Salam , Ali Sajassi , Clarence Filsfils
IPC分类号： G06F15/173 , H04L29/12
CPC分类号： H04L61/103 , H04L61/6009
摘要： An example method is provided that includes determining whether an address resolution protocol reply from a local machine has been received at an edge node; updating a local cache based on the reply from the local machine; and sending the reply to a plurality of edge nodes through a data plane of a data center interconnect. In more specific implementations, the method can include determining whether an address resolution protocol request has been received from the local machine. The method could also include updating a local machine cache based on the request. In certain implementations, the method can include determining whether the request is targeting the local machine; and dropping the request if the request is targeting the local machine. The method could also include sending the request through the data center interconnect if the request is not targeting the local machine.
摘要翻译：提供了一种示例性方法，其包括确定在边缘节点处是否已经接收到来自本地机器的地址解析协议应答; 根据本地机器的回复更新本地缓存; 并通过数据中心互连的数据平面将答复发送到多个边缘节点。在更具体的实现中，该方法可以包括确定是否已经从本地机器接收到地址解析协议请求。该方法还可以包括基于该请求更新本地机器缓存。在某些实现中，该方法可以包括确定请求是否针对本地机器; 如果请求针对本地机器，则删除该请求。该方法还可以包括如果请求不针对本地机器，则通过数据中心互连发送请求。

5. 发明授权

US09088517B2 Stitching multicast trees 有权
标题翻译：拼接组播树
公开(公告)号：US09088517B2
公开(公告)日：2015-07-21
申请号：US13369142
申请日：2012-02-08
申请人： Ali Sajassi , Samer Salam , Sami Boutros
发明人： Ali Sajassi , Samer Salam , Sami Boutros
IPC分类号： H04L12/753 , H04L12/723
CPC分类号： H04L12/4679 , H04L12/1863 , H04L45/02 , H04L45/48 , H04L45/50 , H04L61/2069
摘要： Techniques for stitching multicast trees in a multiple data center environment. According to one embodiment, a technique for stitching multicast trees is provided, which includes determining, at an edge device of a data center, one or more Virtual Local Area Networks (VLANs) assigned to the edge device as a result of a designated forwarder election. An assigned forwarder message is sent by the edge device to one or more devices on the data center, the assigned forwarder message advertising the edge device as a designated forwarder for the VLANs assigned to the edge device. For each of the VLANs assigned to the edge device, the assigned forwarder message causes the edge device to be included in a multicast tree for the VLAN when the assigned forwarder message is received by specific ones of the devices in the data center that are associated with the VLAN.
摘要翻译：在多数据中心环境中拼接多播树的技术。根据一个实施例，提供了一种用于拼接多播树的技术，其包括在数据中心的边缘设备处确定由于指定的转发器选举而分配给边缘设备的一个或多个虚拟局域网（VLAN）。分配的转发器消息由边缘设备发送到数据中心上的一个或多个设备，所分配的转发器消息将边缘设备通告为分配给边缘设备的VLAN的指定转发器。对于分配给边缘设备的每个VLAN，分配的转发器消息使得边缘设备被包含在VLAN的多播树中，当分配的转发器消息被数据中心中与数据中心相关联的特定设备接收时 VLAN。

6. 发明授权

US08948169B2 Mechanism for E-VPN interoperability with VPLS 有权
标题翻译：与VPLS的E-VPN互操作性机制
公开(公告)号：US08948169B2
公开(公告)日：2015-02-03
申请号：US13313968
申请日：2011-12-07
申请人： Samer Salam , Ali Sajassi , Sami Boutros
发明人： Samer Salam , Ali Sajassi , Sami Boutros
IPC分类号： H04L12/56 , H04L12/721 , H04L12/46
CPC分类号： H04L45/68 , H04L12/4641 , H04L45/66
摘要： In one embodiment, a network device in a set of network devices obtains a pseudowire label for a Provider Edge (PE) device, where the pseudowire label corresponds to a Virtual Local Area Network (VLAN) on the PE device. In addition, the network device obtains a set of one or more MAC addresses reachable via the PE device, wherein the set of network devices support Ethernet Virtual Private Network (E-VPN) and are in the same redundancy group such that the set of network devices are coupled to the same customer edge device. The network device stores the pseudowire label in association with the set of one or more MAC addresses. The network device uses the pseudowire label to encapsulate traffic associated with the VLAN that is received from the customer edge device and destined to the set of MAC addresses reachable via the PE device.
摘要翻译：在一个实施例中，一组网络设备中的网络设备获得用于提供商边缘（PE）设备的伪线标签，其中伪线标签对应于PE设备上的虚拟局域网（VLAN）。另外，网络设备获得通过PE设备可达到的一个或多个MAC地址的集合，其中该组网络设备支持以太网虚拟专用网（E-VPN），并且处于相同的冗余组中，使得该组网络设备耦合到相同的客户边缘设备。网络设备将伪线标签与一组或多个MAC地址相关联地存储。网络设备使用伪线标签封装与客户边缘设备接收到的VLAN相关联的流量，并发往可通过PE设备到达的一组MAC地址。

7. 发明申请

US20130235876A1 MANAGING HIERARCHICAL ETHERNET SEGMENTS 有权
标题翻译：管理分层以太网部分
公开(公告)号：US20130235876A1
公开(公告)日：2013-09-12
申请号：US13471676
申请日：2012-05-15
申请人： Ali Sajassi , Samer Salam , Sami Boutros
发明人： Ali Sajassi , Samer Salam , Sami Boutros
IPC分类号： H04L12/56
CPC分类号： H04L41/12 , H04L29/12066 , H04L45/02 , H04L45/04 , H04L45/50 , H04L61/1511
摘要： In one embodiment, a method includes determining when a predetermined period of time has elapsed, and determining whether at least a first message has been obtained on a first port of a node during the predetermined period of time when it is determined that the predetermined period of time has elapsed. The method also includes identifying the first port as being connected to a single-homed site when it is determined that the at least first message has not been obtained on the first port during the predetermined period of time. The first port is identified as being connected to a multi-homed network, a multi-homed device, or a hierarchical Ethernet segment when it is determined that the at least first message has been obtained on the first port during the predetermined period of time.
摘要翻译：在一个实施例中，一种方法包括确定何时经过了预定的时间段，并且在确定在预定时间段的预定时间段内，确定在节点的第一端口上是否已经获得了至少第一消息时间已经过去了该方法还包括当在预定时间段内确定在第一端口上尚未获得至少第一消息时，将第一端口识别为连接到单个归属站点。当在预定时间段内确定在第一端口上已经获得了至少第一消息时，第一端口被识别为连接到多归属网络，多归属设备或分层以太网段。

8. 发明申请

US20130201986A1 STITCHING MULTICAST TREES 有权
公开(公告)号：US20130201986A1
公开(公告)日：2013-08-08
申请号：US13369142
申请日：2012-02-08
申请人： Ali Sajassi , Samer Salam , Sami Boutros
发明人： Ali Sajassi , Samer Salam , Sami Boutros
IPC分类号： H04L12/56
CPC分类号： H04L12/4679 , H04L12/1863 , H04L45/02 , H04L45/48 , H04L45/50 , H04L61/2069
摘要： Techniques for stitching multicast trees in a multiple data center environment. According to one embodiment, a technique for stitching multicast trees is provided, which includes determining, at an edge device of a data center, one or more Virtual Local Area Networks (VLANs) assigned to the edge device as a result of a designated forwarder election. An assigned forwarder message is sent by the edge device to one or more devices on the data center, the assigned forwarder message advertising the edge device as a designated forwarder for the VLANs assigned to the edge device. For each of the VLANs assigned to the edge device, the assigned forwarder message causes the edge device to be included in a multicast tree for the VLAN when the assigned forwarder message is received by specific ones of the devices in the data center that are associated with the VLAN.

9. 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。

10. 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。

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