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1. 发明申请

US20120014387A1 Virtual Layer 2 and Mechanism to Make it Scalable 有权
标题翻译：虚拟层2和机制使其可扩展
公开(公告)号：US20120014387A1
公开(公告)日：2012-01-19
申请号：US13118269
申请日：2011-05-27
申请人： Linda Dunbar , T. Benjamin Mack-Crane , Susan Hares , Robert Sultan , Peter Ashwood-Smith , Guoli Yin
发明人： Linda Dunbar , T. Benjamin Mack-Crane , Susan Hares , Robert Sultan , Peter Ashwood-Smith , Guoli Yin
IPC分类号： H04L12/56
CPC分类号： H04L12/4633 , H04L12/462 , H04L12/4625 , H04L12/4641 , H04L12/4675 , H04L12/66 , H04L29/12028 , H04L41/12 , H04L45/02 , H04L45/66 , H04L61/103
摘要： An apparatus comprising a service network and a plurality of Layer 2 networks at a plurality of different physical locations coupled to the service network via a plurality of edge nodes at the Layer 2 networks, wherein the edge nodes are configured to maintain a plurality of Internet Protocol (IP) addresses of a plurality of hosts across the Layer 2 networks, and wherein the IP addresses of the hosts in each of the Layer 2 networks are mapped by the other Layer 2 networks to a Media Access Control (MAC) address of each of the edge nodes in the same Layer 2 networks of the hosts.
摘要翻译：一种包括服务网络和多个不同物理位置处的多个第2层网络的装置，其经由第2层网络上的多个边缘节点耦合到服务网络，其中边缘节点被配置为维持多个互联网协议（IP）地址，并且其中每个第2层网络中的主机的IP地址被其他第2层网络映射到每个网络的媒体访问控制（MAC）地址主机的相同二层网络中的边缘节点。

2. 发明授权

US09160609B2 Virtual Layer 2 and mechanism to make it scalable 有权
标题翻译：虚拟层2和机制使其可扩展
公开(公告)号：US09160609B2
公开(公告)日：2015-10-13
申请号：US13118269
申请日：2011-05-27
申请人： Linda Dunbar , T. Benjamin Mack-Crane , Susan Hares , Robert Sultan , Peter Ashwood-Smith , Guoli Yin
发明人： Linda Dunbar , T. Benjamin Mack-Crane , Susan Hares , Robert Sultan , Peter Ashwood-Smith , Guoli Yin
IPC分类号： H04L12/46 , H04L29/12 , H04L12/66 , H04L12/721
CPC分类号： H04L12/4633 , H04L12/462 , H04L12/4625 , H04L12/4641 , H04L12/4675 , H04L12/66 , H04L29/12028 , H04L41/12 , H04L45/02 , H04L45/66 , H04L61/103
摘要： An apparatus comprising a service network and a plurality of Layer 2 networks at a plurality of different physical locations coupled to the service network via a plurality of edge nodes at the Layer 2 networks, wherein the edge nodes are configured to maintain a plurality of Internet Protocol (IP) addresses of a plurality of hosts across the Layer 2 networks, and wherein the IP addresses of the hosts in each of the Layer 2 networks are mapped by the other Layer 2 networks to a Media Access Control (MAC) address of each of the edge nodes in the same Layer 2 networks of the hosts.
摘要翻译：一种包括服务网络和多个不同物理位置处的多个第2层网络的装置，其经由第2层网络上的多个边缘节点耦合到服务网络，其中边缘节点被配置为维持多个互联网协议（IP）地址，并且其中每个第2层网络中的主机的IP地址被其他第2层网络映射到每个网络的媒体访问控制（MAC）地址主机的相同二层网络中的边缘节点。

3. 发明授权

US09014054B2 Layer two over multiple sites 有权
标题翻译：多个网站的第二层
公开(公告)号：US09014054B2
公开(公告)日：2015-04-21
申请号：US13172554
申请日：2011-06-29
申请人： Linda Dunbar , Susan Hares , T. Benjamin Mack-Crane , Robert Sultan , Peter Ashwood-Smith , Guoli Yin
发明人： Linda Dunbar , Susan Hares , T. Benjamin Mack-Crane , Robert Sultan , Peter Ashwood-Smith , Guoli Yin
IPC分类号： H04L12/28 , H04L29/12 , H04L12/46 , H04L12/721
CPC分类号： H04L45/66 , H04L12/462 , H04L12/4633 , H04L12/4641 , H04L12/66 , H04L29/12028 , H04L45/74 , H04L61/103
摘要： An apparatus comprising a service network, and a plurality of Layer 2 sites connected by the service network via a plurality of gateways, wherein the gateways are configured to map a plurality of Internet Protocol (IP) addresses of a plurality of hosts under a plurality of virtual local area networks (VLANs) in a plurality of Layer 2 sites to a plurality of addresses (e.g. MAC or others) of the corresponding gateways inform the other gateways in the other Layer 2 sites of the mapped IP addresses under each of the VLANs in the local Layer 2 sites, and forward data frames originated from the hosts in the local Layer 2 sites to the other gateways in the other Layer 2 sites when the data frames' destinations are residing in the other Layer 2 sites.
摘要翻译：一种包括服务网络和经由多个网关由服务网络连接的多个第二层站点的装置，其中，所述网关被配置为映射多个主机的多个互联网协议（IP）地址，多个第2层站点中的虚拟局域网（VLAN）到相应网关的多个地址（例如MAC或其他），通知每个VLAN下的映射IP地址的其他二层站点中的其他网关本地二层站点，以及当数据帧的目的地驻留在其他第二层站点时，将本地二层站点中的主机发送到其他第二层站点中的其他网关的转发数据帧。

4. 发明申请

US20120008528A1 Layer Two Over Multiple Sites 有权
标题翻译：多个网站的第二层
公开(公告)号：US20120008528A1
公开(公告)日：2012-01-12
申请号：US13172554
申请日：2011-06-29
申请人： Linda Dunbar , Susan Hares , T. Benjamin Mack-Crane , Robert Sultan , Peter Ashwood-Smith , Guoli Yin
发明人： Linda Dunbar , Susan Hares , T. Benjamin Mack-Crane , Robert Sultan , Peter Ashwood-Smith , Guoli Yin
IPC分类号： H04L12/56 , H04L12/28
CPC分类号： H04L45/66 , H04L12/462 , H04L12/4633 , H04L12/4641 , H04L12/66 , H04L29/12028 , H04L45/74 , H04L61/103
摘要： An apparatus comprising a service network, and a plurality of Layer 2 sites connected by the service network via a plurality of gateways, wherein the gateways are configured to map a plurality of Internet Protocol (IP) addresses of a plurality of hosts under a plurality of virtual local area networks (VLANs) in a plurality of Layer 2 sites to a plurality of addresses (e.g. MAC or others) of the corresponding gateways inform the other gateways in the other Layer 2 sites of the mapped IP addresses under each of the VLANs in the local Layer 2 sites, and forward data frames originated from the hosts in the local Layer 2 sites to the other gateways in the other Layer 2 sites when the data frames' destinations are residing in the other Layer 2 sites.
摘要翻译：一种包括服务网络和经由多个网关由服务网络连接的多个第二层站点的装置，其中，所述网关被配置为映射多个主机的多个互联网协议（IP）地址，多个第2层站点中的虚拟局域网（VLAN）到相应网关的多个地址（例如MAC或其他），通知每个VLAN下的映射IP地址的其他二层站点中的其他网关本地二层站点，以及当数据帧的目的地驻留在其他第二层站点时，将本地二层站点中的主机发送到其他第二层站点中的其他网关的转发数据帧。

5. 发明授权

US09008088B2 Multicast implementation in a link state protocol controlled ethernet network 有权
标题翻译：链路状态协议控制的以太网网络中的组播实现
公开(公告)号：US09008088B2
公开(公告)日：2015-04-14
申请号：US13302704
申请日：2011-11-22
申请人： Peter Ashwood-Smith , Guoli Yin , Hong Zhang , Nigel Bragg , David Allan
发明人： Peter Ashwood-Smith , Guoli Yin , Hong Zhang , Nigel Bragg , David Allan
IPC分类号： H04L12/28 , H04L12/18 , H04L12/46 , H04L12/701 , H04L12/751 , H04L12/721 , H04L12/761 , H04L12/705 , H04L12/753 , H04L12/931 , H04L12/24 , H04L12/935
CPC分类号： H04L12/18 , H04L12/462 , H04L12/4625 , H04L12/4641 , H04L12/4675 , H04L41/0816 , H04L45/00 , H04L45/02 , H04L45/12 , H04L45/16 , H04L45/18 , H04L45/48 , H04L45/66 , H04L49/3009 , H04L49/354
摘要： Forwarding state is installed for sparse multicast trees in a link state protocol controlled Ethernet network by enabling intermediate nodes to install state for one or more physical multicast trees, each of which may have multiple logical multicast trees mapped to it. By mapping multiple logical multicasts to a particular physical multicast, and installing state for the physical multicast, fewer FIB entries are required to implement the multiple multicasts. Mapping may be performed by destination nodes before advertising membership in the physical multicast, or may be performed by the intermediate nodes before installing state when a destination node advertises membership in a logical multicast. Intermediate nodes will install state for the physical multicast tree if they are on a shortest path between a source and at least one destination of one of the logical multicasts that has been mapped to the physical multicast.
摘要翻译：通过使中间节点能够为一个或多个物理组播树安装状态，每个可能具有映射到其上的多个逻辑组播树，为链路状态协议控制的以太网中的稀疏组播树安装转发状态。通过将多个逻辑组播映射到特定的物理组播，并为物理组播的安装状态，需要较少的FIB表项来实现多个组播。映射可以在广播成员身份的物理组播之前由目的地节点执行，或者可以在目的地节点在逻辑多播中通告成员资格之前由中间节点执行安装状态。如果物理组播树处于源映射到物理多播的逻辑多播中的一个源和至少一个目的地之间的最短路径上，则中间节点将为物理多播树安装状态。

6. 发明授权

US08879424B2 Method and apparatus for exchanging routing information and the establishment of connectivity across multiple network areas 有权
标题翻译：用于交换路由信息和跨多个网络区域建立连接的方法和装置
公开(公告)号：US08879424B2
公开(公告)日：2014-11-04
申请号：US13526907
申请日：2012-06-19
申请人： David Allan , Nigel Bragg , Paul Unbehagen , Peter Ashwood-Smith , Guoli Yin
发明人： David Allan , Nigel Bragg , Paul Unbehagen , Peter Ashwood-Smith , Guoli Yin
IPC分类号： H04L12/66 , H04L12/28 , G06F15/16 , H04L12/751 , H04L12/721 , H04L12/46 , H04L12/715
CPC分类号： H04L41/12 , H04L12/462 , H04L45/02 , H04L45/04 , H04L45/66
摘要： Routes may be installed across multiple link state protocol controlled Ethernet network areas by causing ABBs to leak I-SID information advertised by BEBs in a L1 network area into an L2 network area. ABBs will only leak I-SIDs for BEBs where it is the closest ABB for that BEB. Where another ABB on the L2 network also leaks the same I-SID into the L2 network area from another L1 network area, the I-SID is of multi-area interest. ABBs will advertise I-SIDs that are common to the L1 and L2 networks back into their respective L1 network. Within each L1 and L2 network area, forwarding state will be installed between network elements advertising common interest in an ISID, so that multi-area paths may be created to span the L1/L2/L1 network areas. The L1/L2/L1 network structure may recurse an arbitrary number of times.
摘要翻译：可以通过使ABB将L1网络区域中的BEB发布的I-SID信息泄漏到L2网络区域中，将路由安装在多个链路状态协议控制的以太网网络区域。 ABB只会泄漏BEB的I-SID，而该BEB是该BEB最接近的ABB。在L2网络上的另一个ABB也从另一个L1网络区域将相同的I-SID泄漏到L2网络区域中，I-SID具有多方面的兴趣。 ABB将通过将L1和L2网络通用的I-SID广播回各自的L1网络。在每个L1和L2网络区域内，转发状态将被安装在对ISID广播共同兴趣的网元之间，从而可以创建多区域路径来跨越L1 / L2 / L1网络区域。 L1 / L2 / L1网络结构可能会递归任意次数。

7. 发明授权

US08149736B2 Distributed storage of routing information in a link state protocol controlled network 失效
标题翻译：路由信息在链路状态协议控制网络中的分布式存储
公开(公告)号：US08149736B2
公开(公告)日：2012-04-03
申请号：US12728977
申请日：2010-03-22
申请人： Peter Ashwood Smith , Guoli Yin , William McCormick
发明人： Peter Ashwood Smith , Guoli Yin , William McCormick
IPC分类号： H04L12/28
CPC分类号： H04L45/742 , H04L45/02 , H04L45/44 , H04L45/54 , H04L45/745 , H04L67/104 , H04L67/1065
摘要： A distributed hash table is implemented to store routing information on a network. Node IDs exchanged in connection with implementation of a link state routing protocol are used as keys in the distributed hash table, and routes are stored at one or more nodes on the network. When a route is learned, the route is processed against the set of keys to determine which nodes should store the route. When a route is needed, the route is processed against the set of keys to determine which nodes should have the route information. The manner in which the route is processed against the set of keys is the same in both instances, so that the DHT may be used to store and retrieve route information on the network. The DHT may be implemented to store MAC addresses, IP addresses, MPLS labels, or other information of interest to enable routes to be stored and learned by network elements on the network.
摘要翻译：实现分布式哈希表以在网络上存储路由信息。在链路状态路由协议的实现中交换的节点ID被用作分布式哈希表中的密钥，并且路由被存储在网络上的一个或多个节点上。当学习路由时，根据密钥集处理路由，以确定哪些节点应存储路由。当需要路由时，根据密钥集处理路由，以确定哪些节点应该具有路由信息。在两种情况下，路由处理方式相同，因此可以使用DHT来存储和检索网络上的路由信息。可以实现DHT来存储MAC地址，IP地址，MPLS标签或感兴趣的其他信息，以使网络上的网络元素能够存储和学习路由。

8. 发明申请

US20100172270A1 Distributed Storage of Routing Information In a Link State Protocol Controlled Network 失效
标题翻译：路由信息在链路状态协议控制网络中的分布式存储
公开(公告)号：US20100172270A1
公开(公告)日：2010-07-08
申请号：US12728977
申请日：2010-03-22
申请人： Peter Ashwood Smith , Guoli Yin , William McCormick
发明人： Peter Ashwood Smith , Guoli Yin , William McCormick
IPC分类号： H04L12/28
CPC分类号： H04L45/742 , H04L45/02 , H04L45/44 , H04L45/54 , H04L45/745 , H04L67/104 , H04L67/1065
摘要： A distributed hash table is implemented to store routing information on a network. Node IDs exchanged in connection with implementation of a link state routing protocol are used as keys in the distributed hash table, and routes are stored at one or more nodes on the network. When a route is learned, the route is processed against the set of keys to determine which nodes should store the route. When a route is needed, the route is processed against the set of keys to determine which nodes should have the route information. The manner in which the route is processed against the set of keys is the same in both instances, so that the DHT may be used to store and retrieve route information on the network. The DHT may be implemented to store MAC addresses, IP addresses, MPLS labels, or other information of interest to enable routes to be stored and learned by network elements on the network.
摘要翻译：实现分布式哈希表以在网络上存储路由信息。在链路状态路由协议的实现中交换的节点ID被用作分布式哈希表中的密钥，并且路由被存储在网络上的一个或多个节点上。当学习路由时，根据密钥集处理路由，以确定哪些节点应存储路由。当需要路由时，根据密钥集处理路由，以确定哪些节点应该具有路由信息。在两种情况下，路由处理方式相同，因此可以使用DHT来存储和检索网络上的路由信息。可以实现DHT来存储MAC地址，IP地址，MPLS标签或感兴趣的其他信息，以使网络上的网络元素能够存储和学习路由。

9. 发明授权

US09547570B2 Devices, systems and methods for debugging network connectivity 有权
标题翻译：用于调试网络连接的设备，系统和方法
公开(公告)号：US09547570B2
公开(公告)日：2017-01-17
申请号：US14608653
申请日：2015-01-29
申请人： Xingjun Chu , Yinfeng Henry Yu , Guoli Yin , Yapeng Wu , Tao Wan , Peter Ashwood-Smith , Khaldoon Al-Zoubi
发明人： Xingjun Chu , Yinfeng Henry Yu , Guoli Yin , Yapeng Wu , Tao Wan , Peter Ashwood-Smith , Khaldoon Al-Zoubi
IPC分类号： G06F11/263 , H04L12/24 , H04L12/26
CPC分类号： G06F11/263 , H04L41/0866 , H04L41/0869 , H04L41/142 , H04L41/5012 , H04L43/106
摘要： The devices, systems, and methods test network connectivity, where the physical network is used to provide one or more service chains connecting service appliances, including firewalls, intrusion detection systems, load balancers, network address translators, web servers, and so on. A service chain may involve multiple routing paths. The devices, systems, and methods test network connectivity test network connectivity by injecting customized echo request packets on each routing path and collecting customized echo reply packets in response. The customized echo reply packets are processed and aggregated to isolate network connectivity problems.
摘要翻译：设备，系统和方法测试网络连接，其中物理网络用于提供连接服务设备的一个或多个服务链，包括防火墙，入侵检测系统，负载平衡器，网络地址转换器，Web服务器等。服务链可能涉及多个路由路径。设备，系统和方法通过在每个路由路径上注入自定义的回显请求报文来测试网络连通性来测试网络连接，并收集定制的回应应答报文。定制的回应应答报文被处理和聚合，以隔离网络连接问题。

10. 发明授权

US09124512B2 Method and apparatus for simplifying the computation of alternate network paths 有权
标题翻译：用于简化备用网络路径计算的方法和装置
公开(公告)号：US09124512B2
公开(公告)日：2015-09-01
申请号：US13595011
申请日：2012-08-27
申请人： Peter Ashwood Smith , Hong Zhang , Guoli Yin
发明人： Peter Ashwood Smith , Hong Zhang , Guoli Yin
IPC分类号： H04L12/26 , H04L12/707 , H04L12/66 , H04L12/751 , H04J3/14
CPC分类号： H04L45/22 , H04J3/14 , H04L12/66 , H04L45/02
摘要： An alternate path calculation process may be terminated after considering some of a source node's neighbors and without considering each of its neighbors, to reduce the amount of processing required to perform the alternate path calculations. The neighbors may be ranked according to the number of alternate paths that the neighbor has historically been able to provide on the network. The influence of historical success or failure may degrade over time so that the rankings may be adjusted to reflect changes in network topography. A given source node, when computing alternate paths through the network, may preferentially select neighbors to perform alternate path calculations on historically higher scoring nodes before performing calculations on historically lower scoring nodes. Several different criteria may be used to stop the alternate path calculation process before considering all neighbors. The neighbors may be loop free neighbors or U-turn neighbors.
摘要翻译：替代路径计算过程可以在考虑了源节点的邻居中的一些并且不考虑其每个邻居的情况下终止，以减少执行备用路径计算所需的处理量。可以根据邻居历史上能够在网络上提供的备用路径的数量来排列邻居。历史成功或失败的影响可能随着时间的推移而降低，以便调整排名以反映网络地形的变化。给定的源节点在计算通过网络的备用路径时，可以优先选择邻居，以便在历史上较高的得分节点执行计算之前对历史上较高的评分节点执行备用路径计算。在考虑所有邻居之前，可以使用几种不同的标准来停止备用路径计算过程。邻居可以是无循环的邻居或U形圈邻居。

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