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1. 发明申请

US20140010232A1 Intra-Domain and Inter-Domain Bridging Over MPLS Using MAC Distribution Via Border Gateway Protocol 审中-公开
标题翻译：通过边界网关协议使用MAC分配的MPLS上的域内和域间桥接
公开(公告)号：US20140010232A1
公开(公告)日：2014-01-09
申请号：US14019728
申请日：2013-09-06
申请人： Ali Sajassi , Keyur Patel , Chandrashekhar Appanna , Stefano Previdi
发明人： Ali Sajassi , Keyur Patel , Chandrashekhar Appanna , Stefano Previdi
IPC分类号： H04L12/741
CPC分类号： H04L45/745 , H04L45/02 , H04L45/04 , H04L45/50
摘要： In one embodiment, a method includes receiving, by a first autonomous system border router (ASBR) of a first autonomous system (AS), a first plurality of provider-provisioned media access control (B-MAC) addresses via Interior Border Gateway Protocol (I-BGP). Each of first plurality of B-MAC addresses is associated with a provider edge (PE) device of the first AS. The first ASBR sends the first plurality of B-MAC addresses to a second ASBR of a second AS using Exterior Border Gateway Protocol (E-BGP). The first ASBR also receives via E-BGP a second plurality of B-MAC addresses each of which is associated with a PE device of the second AS. The first ASBR then distributes the second plurality of B-MAC addresses to each of the PE devices of the first AS using I-BGP.
摘要翻译：在一个实施例中，一种方法包括由第一自治系统（AS）的第一自治系统边界路由器（ASBR）通过内部边界网关协议（第一自治系统边界路由器（ASBR））接收第一多个提供商提供的媒体访问控制（B-MAC） I-BGP）。第一多个B-MAC地址中的每一个与第一AS的提供商边缘（PE）设备相关联。第一ASBR使用外部边界网关协议（E-BGP）向第二AS的第二ASBR发送第一多个B-MAC地址。第一ASBR还经由E-BGP接收第二多个B-MAC地址，每个B-MAC地址与第二AS的PE设备相关联。第一ASBR然后使用I-BGP将第二多个B-MAC地址分配给第一AS的每个PE设备。

2. 发明授权

US08531941B2 Intra-domain and inter-domain bridging over MPLS using MAC distribution via border gateway protocol 有权
公开(公告)号：US08531941B2
公开(公告)日：2013-09-10
申请号：US11827772
申请日：2007-07-13
申请人： Ali Sajassi , Keyur Patel , Chandrashekhar Appanna , Stefano Previdi
发明人： Ali Sajassi , Keyur Patel , Chandrashekhar Appanna , Stefano Previdi
IPC分类号： H04L12/28
CPC分类号： H04L45/745 , H04L45/02 , H04L45/04 , H04L45/50
摘要： In one embodiment, a method includes receiving, by a first autonomous system border router (ASBR) of a first autonomous system (AS), a first plurality of provider-provisioned media access control (B-MAC) addresses via Interior Border Gateway Protocol (I-BGP). Each of first plurality of B-MAC addresses is associated with a provider edge (PE) device of the first AS. The first ASBR sends the first plurality of B-MAC addresses to a second ASBR of a second AS using Exterior Border Gateway Protocol (E-BGP). The first ASBR also receives via E-BGP a second plurality of B-MAC addresses each of which is associated with a PE device of the second AS. The first ASBR then distributes the second plurality of B-MAC addresses to each of the PE devices of the first AS using I-BGP.

3. 发明申请

US20090016365A1 Intra-domain and inter-domain bridging over MPLS using MAC distribution via border gateway protocol 有权
标题翻译：通过边界网关协议使用MAC分配的MPLS上的域内和域间桥接
公开(公告)号：US20090016365A1
公开(公告)日：2009-01-15
申请号：US11827772
申请日：2007-07-13
申请人： Ali Sajassi , Keyur Patel , Chandrashekhar Appanna , Stefano Previdi
发明人： Ali Sajassi , Keyur Patel , Chandrashekhar Appanna , Stefano Previdi
IPC分类号： H04L12/66
CPC分类号： H04L45/745 , H04L45/02 , H04L45/04 , H04L45/50
摘要： In one embodiment, a method includes receiving, by a first autonomous system border router (ASBR) of a first autonomous system (AS), a first plurality of provider-provisioned media access control (B-MAC) addresses via Interior Border Gateway Protocol (I-BGP). Each of first plurality of B-MAC addresses is associated with a provider edge (PE) device of the first AS. The first ASBR sends the first plurality of B-MAC addresses to a second ASBR of a second AS using Exterior Border Gateway Protocol (E-BGP). The first ASBR also receives via E-BGP a second plurality of B-MAC addresses each of which is associated with a PE device of the second AS. The first ASBR then distributes the second plurality of B-MAC addresses to each of the PE devices of the first AS using I-BGP.
摘要翻译：在一个实施例中，一种方法包括由第一自治系统（AS）的第一自治系统边界路由器（ASBR）通过内部边界网关协议（第一自治系统（ASBR））接收第一多个提供者提供的媒体访问控制（B-MAC） I-BGP）。第一多个B-MAC地址中的每一个与第一AS的提供商边缘（PE）设备相关联。第一ASBR使用外部边界网关协议（E-BGP）向第二AS的第二ASBR发送第一多个B-MAC地址。第一ASBR还经由E-BGP接收第二多个B-MAC地址，每个B-MAC地址与第二AS的PE设备相关联。第一ASBR然后使用I-BGP将第二多个B-MAC地址分配给第一AS的每个PE设备。

4. 发明授权

US08842577B2 Enabling media access control address mobility in an ethernet virtual private network 有权
标题翻译：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
申请人： Ali Sajassi , Samer Salam , Keyur Patel
发明人： Ali Sajassi , Samer Salam , Keyur Patel
IPC分类号： H04L12/28
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。

5. 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。

6. 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。

7. 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。

8. 发明授权

US09794180B2 Reducing transient packet duplication and improving split-horizon filtering 有权
公开(公告)号：US09794180B2
公开(公告)日：2017-10-17
申请号：US14335622
申请日：2014-07-18
申请人： Samir D. Thoria , Keyur Patel , Ali Sajassi
发明人： Samir D. Thoria , Keyur Patel , Ali Sajassi
IPC分类号： H04L12/851 , H04L12/46 , H04L12/721 , H04L12/723
CPC分类号： H04L47/2483 , H04L12/4633 , H04L45/32 , H04L45/50
摘要： In one embodiment, a method includes obtaining, at a first provider edge (PE) included a plurality of PEs multi-homed to a first customer edge (CE), traffic intended for the first CE, wherein the traffic includes a first indication, the first indication being configured to identify the traffic as flood traffic. A forwarding PE included in the plurality of PEs suitable to use to forward the traffic to the first CE is identified based on identifying traffic as the flood traffic. The method also includes determining whether the first PE is the forwarding PE, and providing the traffic to the first CE using the first PE when it is determined that the first PE is the forwarding PE. When it is determined that the first PE is not the forwarding PE, the traffic is filtered using the first PE.

9. 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。

10. 发明申请

US20160021015A1 REDUCING TRANSIENT PACKET DUPLICATION AND IMPROVING SPLIT-HORIZON FILTERING 有权
标题翻译：减少瞬时分组重复和改进分离过滤
公开(公告)号：US20160021015A1
公开(公告)日：2016-01-21
申请号：US14335622
申请日：2014-07-18
申请人： Samir D. Thoria , Keyur Patel , Ali Sajassi
发明人： Samir D. Thoria , Keyur Patel , Ali Sajassi
IPC分类号： H04L12/851 , H04L12/46
CPC分类号： H04L47/2483 , H04L12/4633 , H04L45/32 , H04L45/50
摘要： In one embodiment, a method includes obtaining, at a first provider edge (PE) included a plurality of PEs multi-homed to a first customer edge (CE), traffic intended for the first CE, wherein the traffic includes a first indication, the first indication being configured to identify the traffic as flood traffic. A forwarding PE included in the plurality of PEs suitable to use to forward the traffic to the first CE is identified based on identifying traffic as the flood traffic. The method also includes determining whether the first PE is the forwarding PE, and providing the traffic to the first CE using the first PE when it is determined that the first PE is the forwarding PE. When it is determined that the first PE is not the forwarding PE, the traffic is filtered using the first PE.
摘要翻译：在一个实施例中，一种方法包括在包括多归属于第一客户边缘（CE）的多个PE的第一提供者边缘（PE）处获得旨在用于第一CE的流量，其中流量包括第一指示，第一指示被配置为将流量识别为洪泛流量。基于将流量识别为洪泛流量，识别适合于将流量转发到第一CE的多个PE中包括的转发PE。该方法还包括确定第一PE是否是转发PE，并且当确定第一PE是转发PE时，使用第一PE将流量提供给第一CE。当确定第一PE不是转发PE时，使用第一PE过滤流量。

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