专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明授权

US08223660B2 Failure notification in a network having serially connected nodes 失效
标题翻译：具有串行连接节点的网络中的故障通知
公开(公告)号：US08223660B2
公开(公告)日：2012-07-17
申请号：US12148418
申请日：2008-04-18
申请人： David Allan , Malcolm Betts , Nigel Bragg , Peter Ashwood Smith , Paul Unbehagen
发明人： David Allan , Malcolm Betts , Nigel Bragg , Peter Ashwood Smith , Paul Unbehagen
IPC分类号： G01R31/08 , H04L12/28
CPC分类号： H04L45/16 , H04L41/06 , H04L45/02 , H04L45/28 , H04L45/32
摘要： Multicast capabilities of a link state protocol controlled network are used to accelerate the flooding advertisement of topology change notifications within portions of the network. This flooding mechanism may be particularly efficient in a network with a large number of two-connected nodes such as a ring network architecture. A control plane specific multicast group address is used when flooding topology change notifications, and a process such as reverse path forwarding check is used as an additional control on forwarding of the notification to prevent looping of control plane packets. Two-connected nodes insert a forwarding entry into their FIB to enable frames containing the control message to be forwarded via the data plane on to the downstream node so that propagation of the control message along a chain of two-connected nodes may occur at data plane speeds.
摘要翻译：链路状态协议控制网络的组播功能用于加速网络部分内的拓扑变化通知的泛洪广告。这种洪泛机制在具有大量双连接节点（例如环网架构）的网络中可能是特别有效的。泛洪拓扑变化通知时使用控制平面特定的组播组地址，并且使用诸如反向路径转发检查之类的过程作为通知转发的附加控制，以防止控制平面分组的循环。双连接节点将转发条目插入到其FIB中，以使包含控制消息的帧能够经由数据平面转发到下游节点，使得控制消息沿双连接节点链的传播可能发生在数据平面速度。

12. 发明授权

US08971332B2 Implementation of VPNs over a link state protocol controlled Ethernet network 有权
公开(公告)号：US08971332B2
公开(公告)日：2015-03-03
申请号：US13004979
申请日：2011-01-12
申请人： Paul Unbehagen , David Allan , Bruno Germain , Roger Lapuh , Mohnish Anumala , Nigel Bragg
发明人： Paul Unbehagen , David Allan , Bruno Germain , Roger Lapuh , Mohnish Anumala , Nigel Bragg
IPC分类号： H04L12/28 , H04L12/751 , H04L12/46 , H04L12/715 , H04L12/721
CPC分类号： H04L12/4662 , H04L12/462 , H04L12/4645 , H04L12/4683 , H04L45/02 , H04L45/028 , H04L45/04 , H04L45/502 , H04L45/52 , H04L45/54 , H04L45/66
摘要： Nodes on a link state protocol controlled Ethernet network implement a link state routing protocol such as IS-IS. Nodes assign an IP address or I-SID value per VRF and then advertise the IP addresses or I-SID values in IS-IS LSAs. When a packet is to be forwarded on the VPN, the ingress node identifies the VRF for the packet and performs an IP lookup in customer address space in the VRF to determine the next hop and the IP address or I-SID value of the VRF on the egress node. The ingress node prepends an I-SID or IP header to identify the VRFs and then creates a MAC header to allow the packet to be forwarded to the egress node on the link state protocol controlled Ethernet network. When the packet is received at the egress node, the MAC header is stripped from the packet and the appended I-SID or IP header is used to identify the egress VRF. A customer address space IP lookup is then performed in the identified VRF on the egress node using the information in the client IP header to determine how to forward the packet. Customer reachability information within a VPN may be exchanged between VRFs using iBGP, or directly by using link state protocol LSAs tagged with the relevant I-SID.

13. 发明申请

US20120263075A1 Method and Apparatus for Exchanging Routing Information and the Establishment of Connectivity Across Multiple Network Areas 有权
标题翻译：交换路由信息的方法和装置以及跨多个网络区域的连接建立
公开(公告)号：US20120263075A1
公开(公告)日：2012-10-18
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： H04L12/28
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。

14. 发明申请

US20090168780A1 MPLS P node replacement using a link state protocol controlled ethernet network 审中-公开
标题翻译：使用链路状态协议控制的以太网网络进行MPLS P节点替换
公开(公告)号：US20090168780A1
公开(公告)日：2009-07-02
申请号：US12151682
申请日：2008-05-08
申请人： Paul Unbehagen , Nigel Bragg , David Allan
发明人： Paul Unbehagen , Nigel Bragg , David Allan
IPC分类号： H04L12/56
CPC分类号： H04L45/00 , H04L12/2852 , H04L12/462 , H04L12/4675 , H04L45/50 , H04L45/66
摘要： When a MPLS Virtual Forwarding Entity (VFE) on a Link State Protocol Controlled Ethernet Network learns a forwarding equivalency class (FEC) to label binding from an attached MPLS-LER, it will determine an associated MAC address for the FEC, and advertise the FEC/label binding along with the MAC address. Nodes in the Ethernet network will install shortest path forwarding state for the MAC to the MPLS-VFE advertising the FEC/label binding. Each MPLS-VFEs on the Ethernet network that receive the advertisement will update its database and generate a label that is distributed to attached MPLS LERs using LDP. When the MPLS-LER needs to transmit traffic to the FEC, it will use the label provided by the MPLS-VFE. The MPLS-VFE maintains a mapping between the label and the MAC address so that it may use the MAC address to forward the packet across the Ethernet network.
摘要翻译：当链路状态协议控制的以太网网络上的MPLS虚拟转发实体（VFE）学习转发等价类（FEC）来标记来自附着的MPLS-LER的绑定时，将确定FEC的相关MAC地址，并通告FEC /标签绑定以及MAC地址。以太网网络中的节点将为MPLS向广播FEC /标签绑定的MPLS-VFE安装最短路径转发状态。接收广告的以太网上的每个MPLS-VFE将更新其数据库，并生成使用LDP分发给附加的MPLS LER的标签。当MPLS-LER需要向FEC传输流量时，将使用MPLS-VFE提供的标签。 MPLS-VFE维护标签和MAC地址之间的映射关系，从而可以通过MAC地址将数据包转发到以太网上。

15. 发明授权

US08504727B2 Method and apparatus for interworking ethernet and MPLS networks 失效
标题翻译：用于互通以太网和MPLS网络的方法和装置
公开(公告)号：US08504727B2
公开(公告)日：2013-08-06
申请号：US12016190
申请日：2008-01-17
申请人： Dinesh Mohan , Gerald Smallegange , Paul Unbehagen , Nigel Bragg
发明人： Dinesh Mohan , Gerald Smallegange , Paul Unbehagen , Nigel Bragg
IPC分类号： G06F15/16 , H04J3/16
CPC分类号： H04L12/66 , H04L12/4616 , H04L12/4633 , H04L12/4658 , H04L12/4662 , H04L45/502 , H04L2212/00
摘要： MPLS networks offering PW or VPLS services may be interconnected with Ethernet networks implemented according to 802.1ah or 802.1Qay. The MPLS network may be a core and offer services to the Ethernet access networks, or vise-versa. Additionally, a mixture of different types of access networks may be interconnected by an MPLS core or an Ethernet core. Both network interworking and service interworking are provided. OAM fault detection may be implemented via maintenance entities extending across the network or end to end depending on the combination of networks and services offered by the networks.
摘要翻译：提供PW或VPLS服务的MPLS网络可以与根据802.1ah或802.1Qay实现的以太网互连。 MPLS网络可能是核心，并向以太网接入网提供服务，反之亦然。此外，不同类型的接入网络的混合可以由MPLS核心或以太网核心互连。提供网络互通和服务互通。 OAM故障检测可以通过基于由网络提供的网络和服务的组合而跨越网络或端对端的维护实体来实现。

16. 发明申请

US20080172497A1 Method and Apparatus for Interworking Ethernet and MPLS Networks 失效
标题翻译：用于互通以太网和MPLS网络的方法和装置
公开(公告)号：US20080172497A1
公开(公告)日：2008-07-17
申请号：US12016190
申请日：2008-01-17
申请人： Dinesh MOHAN , Gerald Smallegange , Paul Unbehagen , Nigel Bragg
发明人： Dinesh MOHAN , Gerald Smallegange , Paul Unbehagen , Nigel Bragg
IPC分类号： G06F15/16
CPC分类号： H04L12/66 , H04L12/4616 , H04L12/4633 , H04L12/4658 , H04L12/4662 , H04L45/502 , H04L2212/00
摘要： MPLS networks offering PW or VPLS services may be interconnected with Ethernet networks implemented according to 802.1ah or 802.1Qay. The MPLS network may be a core and offer services to the Ethernet access networks, or vise-versa. Additionally, a mixture of different types of access networks may be interconnected by an MPLS core or an Ethernet core. Both network interworking and service interworking are provided. OAM fault detection may be implemented via maintenance entities extending across the network or end to end depending on the combination of networks and services offered by the networks.
摘要翻译：提供PW或VPLS服务的MPLS网络可以与根据802.1ah或802.1Qay实现的以太网相互连接。 MPLS网络可能是核心，并向以太网接入网提供服务，反之亦然。此外，不同类型的接入网络的混合可以由MPLS核心或以太网核心互连。提供网络互通和服务互通。 OAM故障检测可以通过基于由网络提供的网络和服务的组合而跨越网络或端对端的维护实体来实现。

17. 发明申请

US20120287795A1 Continuity Check Management in a Link State Controlled Ethernet Network 有权
标题翻译：链路状态控制以太网网络中的连续性检查管理
公开(公告)号：US20120287795A1
公开(公告)日：2012-11-15
申请号：US13561040
申请日：2012-07-29
申请人： Dinesh Mohan , Paul Unbehagen , Srikanth Keesara
发明人： Dinesh Mohan , Paul Unbehagen , Srikanth Keesara
IPC分类号： H04L12/26 , H04L29/06
CPC分类号： H04L43/10 , H04L41/12 , H04L45/02 , H04L63/00 , H04L69/00
摘要： An OAM link trace message is sent from a source node to a target node in a link state protocol controlled Ethernet network. The link trace message uses an 802.1ag format except, as a destination address, it uses either the unicast Ethernet MAC node ID of the target node or the multicast destination address of the service instance. Network topology verification in a link state protocol controlled Ethernet network checks the link state protocol database at a node to ascertain the control plane topology view of at least part of the network. One or more Ethernet OAM commands from the node are executed to ascertain the data plane topology view of the same part of the network. The control plane topology view of the network is compared to the data plane topology view of the network to see if they match. An error is flagged if they do not match.
摘要翻译： OAM链路跟踪消息从源节点发送到链路状态协议控制的以太网中的目标节点。链路跟踪消息使用802.1ag格式，除了作为目的地址，它使用目标节点的单播以太网MAC节点ID或服务实例的组播目的地址。链路状态协议控制的以太网网络中的网络拓扑验证检查节点处的链路状态协议数据库，以确定至少部分网络的控制平面拓扑视图。执行来自节点的一个或多个以太网OAM命令以确定网络的相同部分的数据平面拓扑视图。将网络的控制平面拓扑视图与网络的数据平面拓扑视图进行比较，看它们是否匹配。如果错误不匹配，则会被标记。

18. 发明授权

US07898965B2 IP network and performance monitoring using ethernet OAM 有权
标题翻译： IP网络和使用以太网OAM的性能监控
公开(公告)号：US07898965B2
公开(公告)日：2011-03-01
申请号：US12249941
申请日：2008-10-12
申请人： Dinesh Mohan , Paul Unbehagen , Srikanth Keesara
发明人： Dinesh Mohan , Paul Unbehagen , Srikanth Keesara
IPC分类号： H04L12/26
CPC分类号： H04L43/10 , H04L41/12 , H04L45/02 , H04L63/00 , H04L69/00
摘要： Network and performance monitoring in a link state protocol controlled Ethernet network. A first node receives a network layer monitoring command from a network layer monitoring requestor. The monitoring command is directed to a second node. The first node resolves the network layer monitoring command into one or more Ethernet OAM command(s); The first node sends the Ethernet OAM command(s) to the second node, receives the results of the Ethernet OAM command(s) from the second node; and returns the results of the Ethernet OAM command(s) in the form of a network layer response to the network layer monitoring requestor. Furthermore, network layer monitoring commands may be one or more performance monitoring commands, and the Ethernet OAM commands can include Y.1731 commands. An IP flow can be adjusted between the first node and the second node in response to the network layer response returned to the network layer monitoring requestor.
摘要翻译：链路状态协议控制的以太网网络中的网络和性能监控。第一节点从网络层监视请求者接收网络层监视命令。监视命令指向第二个节点。第一个节点将网络层监控命令解析为一个或多个以太网OAM命令; 第一个节点向第二个节点发送以太网OAM命令，从第二个节点接收以太网OAM命令的结果; 并以网络层响应的形式将以太网OAM命令的结果返回给网络层监视请求者。此外，网络层监视命令可以是一个或多个性能监视命令，并且以太网OAM命令可以包括Y.1731命令。响应于返回给网络层监视请求者的网络层响应，可以在第一节点和第二节点之间调整IP流。

19. 发明申请

US20100316056A1 TECHNIQUES FOR ROUTING DATA BETWEEN NETWORK AREAS 审中-公开
标题翻译：网路数据路由技术
公开(公告)号：US20100316056A1
公开(公告)日：2010-12-16
申请号：US12483690
申请日：2009-06-12
申请人： Paul Unbehagen , Roger Lapuh
发明人： Paul Unbehagen , Roger Lapuh
IPC分类号： H04L12/56
CPC分类号： H04L12/4625 , H04L12/4633 , H04L45/04 , H04L45/66
摘要： Techniques for routing data between network area are disclosed, In one particular exemplary embodiment, the techniques may be realized as a method for routing data between layer 2 network areas of backbone bridges comprising the steps of receiving data at a network element containing an internally terminated Network to Network Interface (NNI) for a plurality of network areas, identifying a destination address associated with the data, determining a network area of the plurality of network areas associated with the data, and performing one or more data flow treatments associated with the data using the internally terminated Network to Network Interface (NNI).
摘要翻译：公开了在网络区域之间路由数据的技术。在一个特定的示例性实施例中，可以将技术实现为用于在骨干网桥的第2层网络区域之间路由数据的方法，包括以下步骤：在包含内部终止的网络的网络元件处接收数据到多个网络区域的网络接口（NNI），识别与数据相关联的目的地地址，确定与数据相关联的多个网络区域的网络区域，以及使用与数据相关联的一个或多个数据流处理内部终止的网络到网络接口（NNI）。

20. 发明申请

US20050165961A1 Interworking functionality 有权
标题翻译：互通功能
公开(公告)号：US20050165961A1
公开(公告)日：2005-07-28
申请号：US10742653
申请日：2003-12-19
申请人： Paul Unbehagen , Vasile Radoaca
发明人： Paul Unbehagen , Vasile Radoaca
IPC分类号： G06F15/16 , H04L29/12
CPC分类号： H04L29/12207 , H04L29/12009 , H04L29/12018 , H04L29/12839 , H04L61/10 , H04L61/20 , H04L61/6022
摘要： In one aspect a system and method for providing communication between Ethernet and frame relay routers includes generating a unique media access control (MAC) address for a frame relay router in communication with an Ethernet router, associating the MAC address with the frame relay router, and storing the MAC address in an interworking function device (IWF). The method also includes receiving at the IWF device an address resolution protocol (ARP) request from the Ethernet router and sending from the IWF device to the Ethernet router a response to the ARP request based on the stored MAC addresses.
摘要翻译：在一个方面，用于在以太网和帧中继路由器之间提供通信的系统和方法包括为与以太网路由器通信的帧中继路由器生成唯一的媒体访问控制（MAC）地址，将MAC地址与帧中继路由器相关联，以及将MAC地址存储在互通功能设备（IWF）中。该方法还包括在IWF设备接收来自以太网路由器的地址解析协议（ARP）请求，并且基于存储的MAC地址从IWF设备向以太网路由器发送对ARP请求的响应。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式