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1. 发明公开

EP2067307A2 A TREE BASED WIRELESS MESH FOR AN OSPF NETWORK WITH INTRA-TREE COMMUNICATION OPTIMIZATION 有权
标题翻译：基于在树内通信的OSPF网络优化树无线网状
公开(公告)号：EP2067307A2
公开(公告)日：2009-06-10
申请号：EP07705671.1
申请日：2007-02-26
申请人： Cisco Technology, Inc.
发明人： RIBIERE, Vincent , ROY, Abhay , THUBERT, Pascal , WETTERWALD, Patrick
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L45/025 , H04W8/005 , H04W48/08 , H04W76/10 , H04W88/16 , H04W92/24
摘要： A system for providing a tree topology for a network having an interior gateway protocol. A first router receives a hello message from all connected routers in the network. The hello messages include tree topology information. The first router then uses the tree topology information to determine a parent of the router. The first router then establishes connections with directly connected routers at the same level in the tree topology. The first router also generates link messages that include all of the prefixes for children of the first router and broadcasts the link messages.

2. 发明授权

EP2011024B1 NETWORK ELEMENT DISCOVERY USING A NETWORK ROUTINE PROTOCOL 有权
标题翻译：网元的DISCOVERY使用网络协议日常
公开(公告)号：EP2011024B1
公开(公告)日：2013-10-23
申请号：EP07782977.8
申请日：2007-05-01
申请人： Cisco Technology, Inc.
发明人： PATEL, Alpesh , ROY, Abhay , KORIPALLI, Rajeev , ZHANG, Kui , JOSHI, Praveen , APPALA, Syam Sundar
IPC分类号： H04L12/70
CPC分类号： H04L45/02 , H04L45/308

3. 发明授权

EP2327023B1 DIFFERENTIATED SERVICES FOR UNICAST MULTICAST FRAMES IN LAYER 2 TOPOLOGIES 失效
标题翻译：对于单播/多播帧区别的服务，LEVEL 2拓扑
公开(公告)号：EP2327023B1
公开(公告)日：2016-08-10
申请号：EP09813344.0
申请日：2009-09-08
申请人： Cisco Technology, Inc.
发明人： BANERJEE, Ayan , FARINACCI, Dino , SIVARAMU, Raghava , ROY, Abhay , VENUGOPAL, Nair , SANE, Sanjay
IPC分类号： H04L12/701 , H04L12/801 , H04L12/721 , H04L12/851 , H04L12/46
CPC分类号： H04L12/4675 , H04L45/00 , H04L45/66 , H04L47/10 , H04L47/15 , H04L47/2408

4. 发明公开

EP2070260A1 METHOD AND APPARATUS FOR PASSING ROUTING INFORMATION AMONG MOBILE ROUTERS 失效
标题翻译：方法和一种用于在移动路由器路由信息共享
公开(公告)号：EP2070260A1
公开(公告)日：2009-06-17
申请号：EP07813611.6
申请日：2007-07-31
申请人： Cisco Technology, Inc.
发明人： RENTANA, Alvaro , YANG, Yi , ROY, Abhay , LINDEM, Alfred, Iii
IPC分类号： H04L12/28
CPC分类号： H04L45/026 , H04L45/04 , H04W40/246
摘要： A method and apparatus for sharing routing information include receiving first domain data that indicates domains of a first mobile router. A domain is a collection of routers that share uniform routing information at a particular level of detail. An inbound data packet is received from a second mobile router over a particular link. The inbound control plane packet lists second domain data that indicates domains of the second mobile router. The first domain data and the second domain data together include multiple domains. A particular domain is automatically selected from the first domain data and the second domain data. The second mobile router independently selects the same particular domain. The particular link is assigned to the particular domain; and routing information for the particular domain is shared between the first mobile router and the second mobile router over the particular link.

5. 发明授权

EP2070260B1 METHOD AND APPARATUS FOR PASSING ROUTING INFORMATION AMONG MOBILE ROUTERS 失效
标题翻译：用于在移动路由器中传递路由信息的方法和设备
公开(公告)号：EP2070260B1
公开(公告)日：2017-11-29
申请号：EP07813611.6
申请日：2007-07-31
申请人： Cisco Technology, Inc.
发明人： RETANA, Alvaro , YANG, Yi , ROY, Abhay , LINDEM, Alfred, Iii
IPC分类号： H04L12/751 , H04L12/715 , H04W40/24
CPC分类号： H04L45/026 , H04L45/04 , H04W40/246
摘要： A method and apparatus for sharing routing information include receiving first domain data that indicates domains of a first mobile router. A domain is a collection of routers that share uniform routing information at a particular level of detail. An inbound data packet is received from a second mobile router over a particular link. The inbound control plane packet lists second domain data that indicates domains of the second mobile router. The first domain data and the second domain data together include multiple domains. A particular domain is automatically selected from the first domain data and the second domain data. The second mobile router independently selects the same particular domain. The particular link is assigned to the particular domain; and routing information for the particular domain is shared between the first mobile router and the second mobile router over the particular link.

6. 发明公开

EP2883334A1 TECHNIQUES FOR FLOODING OPTIMIZATION FOR LINK STATE PROTOCOLS IN A NETWORK TOPOLOGY 有权
标题翻译： VERFAHREN ZURSPÜLUNGSOPTIMIERUNGFÜRVERKNÜPFUNGSSTATUSPROTOKOLLEIN EINER NETZWERKTOPOLOGIE
公开(公告)号：EP2883334A1
公开(公告)日：2015-06-17
申请号：EP13750997.2
申请日：2013-08-05
申请人： Cisco Technology, Inc.
发明人： MIRTORABI, Sina , ROY, Abhay
IPC分类号： H04L12/721 , H04L12/751 , H04L12/753 , H04L12/703
CPC分类号： H04L45/32 , H04L45/02 , H04L45/18 , H04L45/28 , H04L45/48
摘要： Techniques are provided for generating efficient flooding tree paths in a network. At a node device in a network, a unicast message is sent to a plurality of node devices in the network. The node device obtains an identifier associated with each of the node devices in the network. The identifier contains information indicating node connectivity for each of the node devices. A selected node device is then identified. The selected node device is one of the node devices in the network that has a lowest identifier value indicating a lowest number of connected node devices to the selected node device in the network. The selected node device is classified as a root flooding tree node device. A flooding tree is generated by performing a shortest path first operation from the selected node device to the plurality of node devices in the network.
摘要翻译：提供了用于在网络中生成有效的洪泛树路径的技术。在网络中的节点设备处，单播消息被发送到网络中的多个节点设备。节点设备获得与网络中的每个节点设备相关联的标识符。标识符包含指示每个节点设备的节点连接性的信息。然后识别所选择的节点设备。所选择的节点设备是网络中具有最低标识符值的节点设备之一，其指示网络中所选节点设备的连接节点设备的最少数量。所选择的节点设备被分类为根洪泛树节点设备。通过从所选择的节点设备到网络中的多个节点设备执行最短路径第一操作来生成洪泛树。

7. 发明公开

EP1974486A2 TECHNIQUES FOR DETECTING LOOP-FREE PATHS THAT CROSS ROUTING INFORMATION BOUNDARIES 审中-公开
标题翻译：过程识别ROUTING INFORMATION边界BORDER LOOP自由程
公开(公告)号：EP1974486A2
公开(公告)日：2008-10-01
申请号：EP07756320.3
申请日：2007-01-09
申请人： Cisco Technology, Inc.
发明人： RENTANA, Alvaro , WHITE, Russell , ROY, Abhay , MIRTORABI, Sina
IPC分类号： H04J1/16 , H04L12/56
CPC分类号： H04L45/18 , H04L45/00 , H04L45/04
摘要： Techniques for detecting loops in routes that cross route information boundaries include receiving a control message at a first edge node on one side of the boundary that is connected to a different second edge node on another side of the boundary. The control message indicates a particular network address of a particular node that is reachable from the first edge node. Distinguisher data is determined that indicates if a node in the first collection can reach the first edge node without leaving the first collection. An advertising message is sent from the first edge node to the second edge node that includes route data that indicates the particular network address and the distinguisher data. Based on the distinguisher data, a testing edge node in the first collection can determine whether there is a loop comprising both an internal path and an external path to the first edge node.

8. 发明授权

EP2883334B1 TECHNIQUES FOR FLOODING OPTIMIZATION FOR LINK STATE PROTOCOLS IN A NETWORK TOPOLOGY 有权
公开(公告)号：EP2883334B1
公开(公告)日：2018-07-04
申请号：EP13750997.2
申请日：2013-08-05
申请人： Cisco Technology, Inc.
发明人： MIRTORABI, Sina , ROY, Abhay
IPC分类号： H04L12/721 , H04L12/703 , H04L12/751 , H04L12/753
CPC分类号： H04L45/32 , H04L45/02 , H04L45/18 , H04L45/28 , H04L45/48
摘要： Techniques are provided for generating efficient flooding tree paths in a network. At a node device in a network, a unicast message is sent to a plurality of node devices in the network. The node device obtains an identifier associated with each of the node devices in the network. The identifier contains information indicating node connectivity for each of the node devices. A selected node device is then identified. The selected node device is one of the node devices in the network that has a lowest identifier value indicating a lowest number of connected node devices to the selected node device in the network. The selected node device is classified as a root flooding tree node device. A flooding tree is generated by performing a shortest path first operation from the selected node device to the plurality of node devices in the network.

9. 发明授权

EP2067307B1 A tree based wireless mesh for an OSPF network with intra-tree communication optimization 有权
标题翻译：基于在树内通信的OSPF网络优化树无线网状
公开(公告)号：EP2067307B1
公开(公告)日：2014-07-16
申请号：EP07705671.1
申请日：2007-02-26
申请人： Cisco Technology, Inc.
发明人： RIBIERE, Vincent , ROY, Abhay , THUBERT, Pascal , WETTERWALD, Patrick
IPC分类号： H04L12/751 , H04W8/00 , H04W48/08 , H04W76/02 , H04W88/16 , H04W92/24
CPC分类号： H04L45/025 , H04W8/005 , H04W48/08 , H04W76/10 , H04W88/16 , H04W92/24
摘要： A system for providing a tree topology for a network having an interior gateway protocol. A first router receives a hello message from all connected routers in the network. The hello messages include tree topology information. The first router then uses the tree topology information to determine a parent of the router. The first router then establishes connections with directly connected routers at the same level in the tree topology. The first router also generates link messages that include all of the prefixes for children of the first router and broadcasts the link messages.

10. 发明公开

EP2327023A1 DIFFERENTIATED SERVICES FOR UNICAST MULTICAST FRAMES IN LAYER 2 TOPOLOGIES 失效
标题翻译：对于单播/多播帧区别的服务，LEVEL 2拓扑
公开(公告)号：EP2327023A1
公开(公告)日：2011-06-01
申请号：EP09813344.0
申请日：2009-09-08
申请人： Cisco Technology, Inc.
发明人： BANERJEE, Ayan , FARINACCI, Dino , SIVARAMU, Raghava , ROY, Abhay , VENUGOPAL, Nair , SANE, Sanjay
IPC分类号： G06F15/16
CPC分类号： H04L12/4675 , H04L45/00 , H04L45/66 , H04L47/10 , H04L47/15 , H04L47/2408
摘要： In one embodiment, a method includes receiving information on layer 2 topologies at a network device in a core network, mapping one or more Virtual Local Area Networks (VLANs) to the layer 2 topologies to provide differentiated services in said layer 2 topologies, defining multiple paths for each of the layer 2 topologies, and forwarding a packet received at the network device on one of the multiple paths. An apparatus for providing differentiated services in layer 2 topologies is also disclosed.

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