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1. 发明公开

EP3410778A1 PASSIVE ROUTING IN MESH NETWORK 审中-公开
公开(公告)号：EP3410778A1
公开(公告)日：2018-12-05
申请号：EP18174978.9
申请日：2018-05-30
申请人： Robotonchip Oy
发明人： RAHKALA, Jari , LAMMINAHO, Marko
IPC分类号： H04W40/22 , H04W40/24 , H04L12/733 , H04L12/721
CPC分类号： H04L45/18 , H04L45/20 , H04L45/32 , H04L45/74 , H04L49/9031 , H04W40/22 , H04W40/24
摘要： According to an example aspect of the present invention, there is provided passive routing in a mesh network. One or more media frames from source nodes to target nodes in the mesh network are received (102). Routing information from a received media frame is derived (104), said routing information comprising a source node identifier, a target node identifier, a last node identifier and a frame identifier. The derived routing information is stored (106) into a route ring buffer. A reverse route for the received media frame is determined (108). The received media frame is prevented (110) from being forwarded in the mesh network, when the route ring buffer comprises routing information corresponding to the reverse route.

2. 发明授权

EP3032782B1 PACKET TRANSMISSION METHOD AND APPARATUS 有权
公开(公告)号：EP3032782B1
公开(公告)日：2018-10-17
申请号：EP15198612.2
申请日：2015-12-09
申请人： Huawei Technologies Co., Ltd.
发明人： JU, Wenbin
IPC分类号： H04L12/705 , H04L12/709 , H04L12/707 , H04L12/937
CPC分类号： H04L49/253 , H04L45/18 , H04L45/24 , H04L45/245
摘要： The present invention provides a packet transmission method and an apparatus.A first network device receives, through an inter-system cascade port, a first packet sent by a second network device, and adds a first remote RMT identifier to the first packet to obtain a second packet; d the first network device determines, according to the first RMT identifier in the second packet and an attribute of a sending port for the second packet, whether there is a need to perform pruning processing on the second packet; and if the sending port for the second packet is a multi-homed port, the first network device performs pruning processing on the second packet; if the sending port for the second packet is a single-homed port, the first network device deletes the first RMT identifier in the second packet, and sends the first packet through the single-homed port.

3. 发明授权

EP2430798B1 DUAL HOMED E-SPRING PROTECTION FOR NETWORK DOMAIN INTERWORKING 有权
公开(公告)号：EP2430798B1
公开(公告)日：2018-08-29
申请号：EP10774449.2
申请日：2010-05-06
申请人： Ciena Luxembourg S.a.r.l.
发明人： ABDULLAH, Bashar , HOLNESS, Marc , BOTTORFF, Paul , ST-DENIS , Bernard
IPC分类号： H04L12/46 , H04L12/437 , H04L12/705 , H04L12/66
CPC分类号： H04L12/462 , H04L12/437 , H04L45/18
摘要： A system for controlling packet forwarding through a dual-homed connection between first and second network domains, the dual-homed connection including two peer nodes connected to the first and second network domains. A sub-ring network is instantiated in the first network domain, and includes at least two nodes connected in a linear topology between a pair of end-nodes. Each end-node corresponds with a respective one of the peer nodes. A virtual link through the second network domain for conveys traffic of the sub-ring network between the peer nodes, and closes the sub-ring network to define a ring topology. Each of the nodes of the sub-ring network is controlled to forward packets of the sub-ring network in accordance with a ring network routing scheme.

4. 发明授权

EP2907277B1 BICASTING USING NON-CONGRUENT PATHS IN A LOOP-FREE ROUTING TOPOLOGY HAVING ROUTING ARCS 有权
公开(公告)号：EP2907277B1
公开(公告)日：2018-08-22
申请号：EP13783738.1
申请日：2013-10-09
申请人： Cisco Technology, Inc.
发明人： THUBERT, Pascal , BELLAGAMBA, Patrice , WIJNANDS, Ijsbrand
IPC分类号： H04L12/24 , H04L12/751 , H04L12/735 , H04L12/705 , H04L12/707
CPC分类号： H04L45/18 , H04L41/0803 , H04L45/02 , H04L45/128 , H04L45/24
摘要： In one embodiment, a method comprises creating, in a computing network, a loop-free routing topology comprising a plurality of routing arcs for reaching a destination network node, each routing arc comprising a first network node as a first end of the routing arc, a second network node as a second end of the routing arc, and at least a third network node configured for routing any network traffic along the routing arc toward the destination node via any one of the first or second ends of the routing arc, the loop-free routing topology providing first and second non-congruent paths; and forwarding bicasting data, comprising a data packet in a first direction from a network node and a bicasted copy of the data packet in a second direction from the network node, concurrently to the destination node respectively via the first and second non-congruent paths.

5. 发明授权

EP2582093B1 METHOD FOR DETECTING MESSAGE LOOP, ROUTING AGENT APPARATUS AND NETWORKING SYSTEM 有权
公开(公告)号：EP2582093B1
公开(公告)日：2018-06-20
申请号：EP11846804.0
申请日：2011-12-06
申请人： Huawei Technologies Co., Ltd.
发明人： LI, Chunsheng , ZHANG, Bingcai , XU, Bin
IPC分类号： H04L12/705
CPC分类号： H04L45/18
摘要： Embodiments of the present invention provide a method for detecting a message loop, routing agent apparatus and networking system. The method for detecting a message loop, comprising: receiving a request message sent by a network element apparatus; acquiring routing information for sending the request message to a server apparatus; detecting whether a next-hop link for sending the request message in the routing information and a link for receiving the request message belong to a same link set; and sending a response that a message loop is detected to the network element apparatus, when it is detected that the link for sending the request message in the routing information and the link for receiving the request message belong to a same link set. The technical solutions of the embodiments of the present invention can improve the efficiency of detecting the message loop and thus have strong practicability.

6. 发明授权

EP3026852B1 LOOP AVOIDANCE METHOD, DEVICE AND SYSTEM 有权
标题翻译：回路避让方法，装置和系统
公开(公告)号：EP3026852B1
公开(公告)日：2018-02-28
申请号：EP15195025.0
申请日：2015-11-17
申请人： Huawei Technologies Co., Ltd.
发明人： YU, Bin , TANG, Xiaohu , XU, Ting
IPC分类号： H04L12/753 , H04L12/705
CPC分类号： H04L45/18 , H04L45/48 , H04L45/66 , H04L45/74 , H04L45/745 , H04L69/16 , H04L69/22
摘要： The present invention relates to the communications field, and in particular, to a loop avoidance method, device and system. The system includes a first network device and a second network device in an internal network, a first Ethernet port and a second Ethernet port of the two network devices are of a first type, and loop avoidance priorities are a first loop avoidance priority and a second loop avoidance priority, respectively; root MAC addresses of the two network devices are the same, and are different from respective network bridge MAC addresses; the second network device receives (104) a loop detection frame from the first Ethernet port by using the second Ethernet port, where a source address of the loop detection frame is the root MAC address, and blocks (106) the second Ethernet port according to the loop avoidance priority. Because a network device blocks, according to a loop avoidance priority, an Ethernet port whose type is a first type, that is, an Ethernet port connected to an external network, it is avoided to change a topology of an internal network. Loop avoidance priority refers to a sequence in which Ethernet ports with different loop avoidance priorities are blocked. The application also discloses the negotiation of the internal network. It includes two parts: negotiating a type of an Ethernet port and negotiating a root MAC address, and these two parts may be separately and independently implemented or may be jointly implemented. The root negotiation frame is a frame used to negotiate a type of an Ethernet port or negotiate a root MAC address between two network devices in an internal network.

7. 发明授权

EP2663040B1 FAST REROUTE USING LOOP FREE ALTERNATE NEXT HOPS FOR MULTIPOINT LABEL SWITCHED PATHS 有权
标题翻译：快速繁忙使用无圈交替下一代多点标签交换路径
公开(公告)号：EP2663040B1
公开(公告)日：2017-07-12
申请号：EP13166183.7
申请日：2013-05-02
申请人： Juniper Networks, Inc.
发明人： Esale, Santosh , Qian, Ted
IPC分类号： H04L12/711
CPC分类号： H04L45/16 , H04L45/18 , H04L45/22 , H04L45/28 , H04L45/50

8. 发明公开

EP3151517A1 SYSTEM AND METHOD FOR STATELESS INFORMATION-CENTRIC NETWORKING 审中-公开
标题翻译：系统信息VERFAHRENFÜRZUSTANDSLOSE信息ZENTRISCHE VERNETZUNG
公开(公告)号：EP3151517A1
公开(公告)日：2017-04-05
申请号：EP16189546.1
申请日：2016-09-19
申请人： Palo Alto Research Center, Incorporated
发明人： GARCIA-LUNA-ACEVES, Jose J.
IPC分类号： H04L29/08 , H04L12/705
CPC分类号： H04L45/74 , H04L45/18 , H04L67/327
摘要： One embodiment of the present invention provides a router in an information-centric network (ICN). The router includes a receiving module configured to receive an interest for a piece of content. The interest indicates a name associated with the piece of content. The router also includes an interestprocessing module configured to: determine whether the interest can be forwarded; in response to determining that the interest can be forwarded to a second router, select an identifier from a set of identifiers assigned to the router by the second router; and process the interest by inserting the identifier into the interest. The router further includes a forwarding module configured to forward the processed interest to the second router.
摘要翻译：本发明的一个实施例提供了一种以信息为中心的网络（ICN）中的路由器。路由器包括被配置为接收一段内容的兴趣的接收模块。兴趣表示与该片内容相关联的名称。路由器还包括兴趣处理模块，其被配置为：确定是否可以转发兴趣; 响应于确定所述兴趣可以被转发到第二路由器，从由所述第二路由器分配给所述路由器的一组标识符中选择标识符; 并通过将标识符插入到兴趣中来处理兴趣。该路由器还包括转发模块，该转发模块被配置为将处理的兴趣转发到第二路由器。

9. 发明授权

EP2432164B1 NODE DEVICE AND COMMUNICATION METHOD 有权
标题翻译： KNOTENEINRICHTUNG UND KOMMUNIKATIONSVERFAHREN
公开(公告)号：EP2432164B1
公开(公告)日：2017-03-29
申请号：EP09844564.6
申请日：2009-05-11
申请人： Fujitsu Limited
发明人： IWAO, Tadashige , TAKAHASHI, Yuji , KOGA, Syunsuke , NOGUCHI, Yuri , MIYAKE, Masato , TOYOZUMI, Tatsuya
IPC分类号： H04L12/70 , H04L12/28 , H04W40/24 , H04L12/721 , H04L12/751 , H04L12/741 , H04L12/705
CPC分类号： H04L45/18

10. 发明授权

EP2992643B1 TECHNIQUE OF OPERATING A NETWORK NODE FOR LOAD BALANCING 有权
标题翻译： VERFAHRENFÜRDEN BETRIEB EINES NETZWERKK注意FÜRLASTAUSGLEICH
公开(公告)号：EP2992643B1
公开(公告)日：2017-03-15
申请号：EP13719121.9
申请日：2013-04-30
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： GERÖ, Balázs, Peter , CHINNI, Bhaskara , CSÁSZÁR, András , KINI, Sriganesh , WILKINSON, Andrew
IPC分类号： H04L12/18
CPC分类号： H04L47/125 , H04L45/18 , H04L45/22 , H04L45/24 , H04L45/50
摘要： According to one aspect of the present disclosure, a method of operating a network node of a communication network is provided, the network node being connected to a downstream network node, and to a non-downstream loop free alternate (LFA) network node comprising a load balancing identifier indicating whether it is allowed to load balance the data packet via a non-downstream LFA net-work node or not; changing, if the load balancing identifier indicates that it is allowed to load balance the data packet via a non-downstream LFA network node, and if the network node decides to load balance the data packet via the non-downstream LFA network node, the load balancing identifier of the data packet such that it indicates that a further load balancing of the data packet via a further non-downstream LFA network node is not allowed; and forwarding the thus modified data packet to the non-downstream LFA network node.
摘要翻译：根据本公开的一个方面，提供了一种操作通信网络的网络节点的方法，所述网络节点连接到下游网络节点，并且连接到非下游无环路由替代（LFA）网络节点，包括负载平衡标识符，指示是否允许通过非下游LFA网络节点负载平衡数据包; 如果负载平衡标识符指示允许通过非下游LFA网络节点对数据包进行负载均衡，并且如果网络节点决定通过非下游LFA网络节点负载平衡数据包，则负载平衡数据分组的标识符，使得其指示不允许经由另外的非下游LFA网络节点对数据分组的进一步负载平衡; 并将这样修改的数据分组转发到非下游LFA网络节点。

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