公开(公告)号：EP4307621A1

公开(公告)日：2024-01-17

申请号：EP22787361.9

申请日：2022-03-25

申请人： Huawei Technologies Co., Ltd.

发明人： CHEN, Shuanglong ,  YANG, Hongjie ,  LI, Zhenbin

IPC分类号： H04L12/66

摘要： This application provides a route refresh method, apparatus, and system, and relates to the field of communication technologies. In solutions provided in this application, a first network device can send a plurality of first routes to a second network device in a parallel transmission manner, and can send an end indication after determining that the second network device receives the plurality of first routes. Therefore, it can be ensured that in a parallel transmission scenario, the end indication does not reach the second network device earlier than the first routes. This can avoid a problem that a service flow is interrupted because the second network device untimely ages a route that is not refreshed in a routing table.

公开(公告)号：EP4236251A2

公开(公告)日：2023-08-30

申请号：EP23163779.4

申请日：2016-07-25

申请人： Huawei Technologies Co., Ltd.

发明人： CHE, Jia ,  ZHUANG, Shunwan ,  LI, Zhenbin ,  CHEN, Shuanglong

IPC分类号： H04L45/50

摘要： Embodiments of the present invention provide a label management method, a data stream processing method, and a device. The label management method includes: allocating, by a controller, a source label to a data stream; and sending, by the controller, a first Border Gateway Protocol BGP update packet to an ingress network device on a label switching path LSP of the data stream, and sending a second BGP update packet to an egress network device on the LSP of the data stream, where the first BGP update packet includes a stream identifier of the data stream and the source label, and the second BGP update packet includes a mapping relationship between the source label and a source object of the data stream. By means of the embodiments of the present invention, configuration, management, and maintenance can be simplified.

公开(公告)号：EP2395715A1

公开(公告)日：2011-12-14

申请号：EP10748333.1

申请日：2010-03-03

申请人： Huawei Technologies Co., Ltd.

发明人： TU, Boyan ,  ZHANG, Lixin ,  CHEN, Shuanglong ,  LIU, Jianwen ,  XU, Jianbin ,  LIU, Xiaohui

IPC分类号： H04L12/56

CPC分类号： H04L45/586 ,  H04L45/04

摘要： A method, an apparatus and a system for migrating VPN Routing and Forwarding (VRF) instances are disclosed. The system includes: a first BGP process, configured to: send a VRF instance and configuration information of BGP peers in the VRF instance to a second Border Gateway Protocol (BGP) process; instruct a Transport Control Protocol (TCP) to back up a TCP link to the second BGP process in a hot backup mode, where the TCP link is related to peer sessions of the BGP peers in the VRF instance; and the second BGP process, configured to: create a virtual VRF instance and virtual BGP peers for storing the configuration information; receive the TCP link that is backed up by the TCP in a hot backup mode and related to the peer sessions of the BGP peers in the VRF instance; and receive routes in an Adjacent Ingress Routing Information Base (Adj-RIB-IN) sent by the first BGP process unit, where the Adj-RIB-IN is corresponding to the BGP peers in the VRF instance. In the embodiments of the present invention, in the process of dynamic migration of the a VRF instance between BGP processes, BGP peers services of the VRF instance are not interrupted, and the sessions are not disconnected; a peer device cannot perceive the migration process of a router completely; and changed routing information in the migration process is updated after the migration.

摘要翻译： 公开了用于迁移VPN路由和转发（VRF）实例的方法，装置和系统。 该系统包括：第一个BGP进程，用于：将VRF实例中的BGP对等体的VRF实例和配置信息发送到第二个边界网关协议（BGP）进程; 指示传输控制协议（TCP）以热备份模式备份到第二BGP进程的TCP链路，其中TCP链路与VRF实例中的BGP对等体的对等体会话相关; 第二个BGP进程，配置为：创建虚拟VRF实例和虚拟BGP对等体，用于存储配置信息; 在热备份模式下接收由TCP备份的TCP链路，与VRF实例中BGP对等体的对等体会话相关; 并在第一个BGP进程单元发送的邻居入口路由信息库（Adj-RIB-IN）中接收路由，其中​​Adj​​-RIB-IN与VRF实例中的BGP对等体相对应。 在本发明的实施例中，在VRF实例的动态迁移过程中，VRF实例的BGP对等体业务不中断，会话不会断开; 对等设备不能完全察觉到路由器的迁移过程; 并且在迁移过程中更改路由信息在迁移之后被更新。

公开(公告)号：EP4221139A1

公开(公告)日：2023-08-02

申请号：EP21882175.9

申请日：2021-10-22

申请人： Huawei Technologies Co., Ltd.

发明人： YANG, Hongjie ,  CHEN, Shuanglong ,  LI, Zhenbin

IPC分类号： H04L45/02

摘要： Embodiments of this application disclose a method and an apparatus for establishing a BGP peer, a device, and a system. A first network device sends a first packet to a second network device in a UDP manner, where the first packet is used to establish a BGP peer with the second network device; and if the first network device can receive a second packet sent by the second network device in the UDP manner, the first network device establishes a BGP peer relationship with the second network device in response to the received second packet. In this way, when the first network device needs to establish the BGP peer with the second network device, a TCP connection between the first network device and the second network device does not need to be first established by using a complex procedure, and the BGP peer relationship between the first network device and the second network device is directly established in the UDP manner. Compared with a TCP manner, in the UDP manner, an interaction procedure is simplified, resources required for establishing the BGP peer are reduced, and efficiency of establishing the BGP peer is improved.

公开(公告)号：EP3402141A1

公开(公告)日：2018-11-14

申请号：EP16887534.2

申请日：2016-07-25

申请人： Huawei Technologies Co., Ltd.

发明人： ZHUANG, Shunwan ,  XU, Haijun ,  WANG, Haibo ,  LI, Zhenbin ,  CHE, Jia ,  CHEN, Shuanglong

IPC分类号： H04L12/723

摘要： Embodiments of the present invention provide a VPN service optimization method and a network device. A first network device includes: an analysis unit, configured to analyze a data stream entering a network on which the first network device is located, to obtain a traffic characteristic of a target data stream; and a route advertisement unit, configured to advertise a FlowSpec route, where the FlowSpec route carries redirect indication information, the redirect indication information includes identification information, the identification information is used to uniquely identify a first VPN instance in a second network device, the redirect indication information is used to instruct to redirect the data stream including the traffic characteristic of the target data stream to the first VPN instance, the second network device is an edge device of a service provider network accessed by the network, and the first VPN instance is a target VPN instance to which the target data stream is redirected in the second network device.

公开(公告)号：EP3367620A1

公开(公告)日：2018-08-29

申请号：EP16867985.0

申请日：2016-11-23

申请人： Huawei Technologies Co., Ltd.

发明人： ZHUANG, Shunwan ,  CHEN, Shuanglong ,  LI, Zhenbin ,  CHEN, Guoyi ,  CHE, Jia ,  WU, Nan

IPC分类号： H04L12/803

CPC分类号： H04L47/125 ,  H04L45/22 ,  H04L45/38 ,  H04L45/50 ,  H04L45/7453 ,  H04L47/825

摘要： Embodiments of the present invention disclose a method for implementing load sharing. The method includes: for a congested first link on a first forwarding node, selecting, by a network device, a packet flow forwarded by using the first link; selecting, by the network device, a second link that may be used to forward the packet flow and that is not congested after available bandwidth of the second link is occupied by the packet flow, where the second link is a link between the first forwarding node and a second forwarding node; selecting, by the network device, a first hash gene corresponding to the second link; determining, by the network device, that a third link is not in a congested state after available bandwidth of the third link is occupied by the packet flow; and saving the first hash gene in a source node of the packet flow, where the third link is a link that is on the second forwarding node and that is corresponding to the first hash gene, and the third link is a link between the second forwarding node and a third forwarding node. In addition, the embodiments of the present invention further disclose an apparatus for implementing load sharing.

公开(公告)号：EP2685674A2

公开(公告)日：2014-01-15

申请号：EP11758841.8

申请日：2011-04-29

申请人： Huawei Technologies Co., Ltd.

发明人： CHEN, Shuanglong

IPC分类号： H04L12/56

CPC分类号： H04L45/02 ,  H04L45/04 ,  H04L45/12 ,  H04L45/22 ,  H04L45/586

摘要： Embodiments of the present invention provide a route updating method, including: receiving a first route message to a first destination which is advertised by a first router, where the first route message includes a first route priority; receiving a second route message to the first destination which is advertised by a second router, where the second route message includes a second route priority; selecting a route corresponding to a higher route priority between the first route priority and the second route priority as a forwarding route (203); where, the first router and the second router form a router backup group by means of a virtual router redundancy protocol; under a condition that the first router is a master router and the second router is a backup router, the first route priority is higher than the second route priority. In addition, embodiments of the present invention also provide a corresponding router. By utilizing the route updating method and the router provided in embodiments of the present invention, it may be ensured that a provider edge device timely senses a fault between a remote provider edge device and a customer edge device connected to the remote provider edge device.

摘要翻译： 本发明实施例提供一种路由更新方法，包括：接收第一路由消息给第一路由器通告的第一目的地，所述第一路由消息包括第一路由优先级; 接收由第二路由器通告的到第一目的地的第二路由消息，其中第二路由消息包括第二路由优先级; 选择第一路由优先级和第二路由优先级之间的较高路由优先级对应的路由作为转发路由（203）; 其中，第一路由器和第二路由器通过虚拟路由器冗余协议形成路由器备份组; 在第一路由器为主路由器，第二路由器为备份路由器的情况下，第一路由优先级高于第二路由优先级。 另外，本发明的实施例还提供了相应的路由器。 通过利用本发明实施例提供的路由更新方法和路由器，可以保证提供商边缘设备及时感知远端运营商边缘设备与连接远端运营商边缘设备的用户边缘设备之间的故障。

公开(公告)号：EP4236251A3

公开(公告)日：2023-10-04

申请号：EP23163779.4

申请日：2016-07-25

申请人： Huawei Technologies Co., Ltd.

发明人： CHE, Jia ,  ZHUANG, Shunwan ,  LI, Zhenbin ,  CHEN, Shuanglong

IPC分类号： H04L12/46 ,  H04L45/50

摘要： Embodiments of the present invention provide a label management method, a data stream processing method, and a device. The label management method includes: allocating, by a controller, a source label to a data stream; and sending, by the controller, a first Border Gateway Protocol BGP update packet to an ingress network device on a label switching path LSP of the data stream, and sending a second BGP update packet to an egress network device on the LSP of the data stream, where the first BGP update packet includes a stream identifier of the data stream and the source label, and the second BGP update packet includes a mapping relationship between the source label and a source object of the data stream. By means of the embodiments of the present invention, configuration, management, and maintenance can be simplified.

公开(公告)号：EP3481010A1

公开(公告)日：2019-05-08

申请号：EP17844921.1

申请日：2017-05-15

申请人： Huawei Technologies Co., Ltd.

发明人： ZHUANG, Shunwan ,  CHEN, Shuanglong ,  WU, Nan ,  LI, Zhenbin

IPC分类号： H04L12/46 ,  H04L12/723 ,  H04L12/931

摘要： Embodiments of the present invention provide a method and a system for establishing a VPN LSP, and a related device. The method includes: receiving, by a first PE device, protection information sent by a second PE device, where the protection information includes a virtual next hop vNH; and advertising, by the first PE device, a VPN LSP establishment message to the second PE device, where the VPN LSP establishment message is used to instruct to establish a VPN LSP by using the vNH as a tail endpoint. In the technical solution, the first PE device is an egress PE device of the VPN LSP. The second PE device is an ingress PE device of the VPN LSP. In the technical solution, the egress PE device may establish the VPN LSP based on the vNH sent by the ingress PE device. This can avoid performing a large quantity of configurations on the egress PE during establishment of the VPN LSP.

公开(公告)号：EP3343846A1

公开(公告)日：2018-07-04

申请号：EP16847967.3

申请日：2016-08-24

申请人： Huawei Technologies Co., Ltd.

发明人： ZHUANG, Shunwan ,  LI, Zhenbin ,  CHEN, Shuanglong ,  CHEN, Guoyi ,  CHE, Jia ,  WU, Nan

IPC分类号： H04L12/723 ,  H04L12/24

CPC分类号： H04L45/507 ,  H04L12/4641 ,  H04L41/00 ,  H04L47/825

摘要： Embodiments of the present invention disclose a packet processing method, device, and system. The system includes: a controller, configured to: allocate a service label to a service processing manner of an FEC, establish a mapping relationship between the service label and the service processing manner, send the service label to a source node, and send the mapping relationship to a destination node; the source node, configured to: receive the service label sent by the controller, receive a first packet, insert the service label to the first packet to obtain a second packet, and send the second packet to the destination node; the destination node, configured to: receive the mapping relationship sent by the controller, receive the second packet sent by the source node, and pop the service label from the second packet according to the mapping relationship, to obtain the first packet. The service label is used for instructing, in a process of forwarding the second packet from the source node to the destination node, a network device that needs to perform service processing on the second packet to process the second packet in the service processing manner.