公开(公告)号：EP4145780A1

公开(公告)日：2023-03-08

申请号：EP21811873.5

申请日：2021-05-21

申请人： Huawei Technologies Co., Ltd.

发明人： ZHOU, Jun ,  XIA, Nu ,  QU, Xiaoyang ,  HE, Luyou ,  ZHU, Xia

IPC分类号： H04L12/801 ,  H04L12/807 ,  H04L12/815

摘要： This application discloses a network congestion control method and a network device, and relates to the field of communication technologies, to improve continuity and completion of a packet in a transmission process of a Transmission Control Protocol (TCP) flow. In this application, when pre-congestion (that is, congestion may occur) occurs in a forwarding direction of the TCP flow, a forwarding device reduces a value of a receive window (RWND) field in an acknowledge (ACK) packet, to reduce a sending rate of a transmit end for a packet in the TCP flow or delay sending of a packet by a transmit end. This relieves buffer pressure of the forwarding device, reduces a packet loss, and improves the continuity and the completion of the packet in the transmission process of the TCP flow.

公开(公告)号：EP2634978B1

公开(公告)日：2016-08-03

申请号：EP11847212.5

申请日：2011-11-10

申请人： Huawei Technologies Co., Ltd.

发明人： XUE, Li ,  CHEN, Guoyi ,  SHI, Tijun ,  HE, Luyou

IPC分类号： H04L12/54 ,  H04L12/703 ,  H04L12/711 ,  H04L12/723 ,  H04L12/721 ,  H04L12/46 ,  H04L12/707

CPC分类号： H04L12/56 ,  H04L12/4641 ,  H04L45/00 ,  H04L45/22 ,  H04L45/28 ,  H04L45/507 ,  H04L45/68

公开(公告)号：EP2634978A1

公开(公告)日：2013-09-04

申请号：EP11847212.5

申请日：2011-11-10

申请人： Huawei Technologies Co., Ltd.

发明人： XUE, Li ,  CHEN, Guoyi ,  SHI, Tijun ,  HE, Luyou

IPC分类号： H04L12/56

CPC分类号： H04L12/56 ,  H04L12/4641 ,  H04L45/00 ,  H04L45/22 ,  H04L45/28 ,  H04L45/507 ,  H04L45/68

摘要： Embodiments of the present invention provide a packet forwarding method and a network device, which are applicable to a system that includes a source node, a destination node, a first device, and a second device, where a first logical channel L1 is established between the source node and the first device and a second logical channel L2 is established between the source node and the second device, a third logical channel L3 is established between the destination node and the first device and a fourth logical channel L4 is established between the destination device and the second device, and the packet forwarding method includes: receiving, by the second device through a universal tunnel, a packet to be sent to a destination node, where the packet carries service data and one of identifiers of the L1, the L2, the L3, and the L4; according to the identifier carried in the packet, querying a preconfigured logical channel mapping in the second device, determining that a forwarding channel is the L4, and sending the service data in the packet to the destination node through the L4, where the logical channel mapping is a mapping between a logical channel and the L4, and the logical channel corresponds to the identifier. By using the technical solutions, the number of ICB PWs can be reduced.

摘要翻译： 本发明的实施例提供一种分组转发方法和网络设备，其适用于包括源节点，目的地节点，第一设备和第二设备的系统，其中，在第一逻辑信道L1之间建立第一逻辑信道L1 源节点和第一设备以及在源节点和第二设备之间建立第二逻辑信道L2，在目的地节点和第一设备之间建立第三逻辑信道L3，并且在目的设备之间建立第四逻辑信道L4 所述第二装置，所述分组转发方法包括：由所述第二设备通过通用隧道接收要发送到目的地节点的分组，其中所述分组携带业务数据，并且所述分组携带所述L1，L2， L3和L4; 根据分组中携带的标识符，查询第二设备中的预配置的逻辑信道映射，确定转发信道是L4，并通过L4将分组中的业务数据发送到目的节点，其中逻辑信道映射 是逻辑信道和L4之间的映射，逻辑信道对应于标识符。 通过使用技术方案，ICB PW的数量可以减少。

公开(公告)号：EP2533474A1

公开(公告)日：2012-12-12

申请号：EP10845125.3

申请日：2010-12-31

申请人： Huawei Technologies Co., Ltd.

发明人： HE, Luyou ,  SHI, Tijun ,  ZHAO, Fenghua ,  ZHANG, Jinhui

IPC分类号： H04L12/56

CPC分类号： H04L45/66 ,  H04L45/22

摘要： The present invention provides a method, an apparatus and a system for forwarding data, applied to a layer 2 virtual private network system, where the layer 2 virtual private network system includes a service provider network edge router PE and a customer edge device CE, and an active PE and a standby PE form a cross-node redundancy group RG. The method includes: automatically establishing a data channel for link protection between the active PE and the standby PE; monitoring a link for current data transmission; and when the link for current data transmission fails, forwarding data through the standby PE and the data channel for link protection. Through the present invention, the link delay can be reduced, and packet loss is prevented.

摘要翻译： 本发明提供了一种应用于第二层虚拟专用网络系统的转发数据的方法，装置和系统，其中第二层虚拟专用网络系统包括服务提供商网络边缘路由器PE和客户边缘设备CE，以及 主动PE和备用PE形成跨节点冗余组RG。 该方法包括：主动PE和备用PE之间自动建立链路保护数据通道; 监控当前数据传输的链路; 当链路当前数据传输失败时，通过备用PE转发数据和数据信道进行链路保护。 通过本发明，可以减少链路延迟，防止分组丢失。