公开(公告)号：US20160173657A1

公开(公告)日：2016-06-16

申请号：US15054265

申请日：2016-02-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Pengcheng TANG ,  Yan WANG ,  Wei ZHOU ,  Hui NI

IPC: H04L29/06 ,  H04L12/721

CPC classification number: H04L69/22 ,  H04L45/38

Abstract: Embodiments of the present invention provide a packet processing method, device and system. The method includes: receiving, by a switching device, a packet, where there is a correspondence in the switching device between a prefix and a generic flow entry, where the correspondence is created by using the prefix as an index, and a match field of the generic flow entry corresponding to the prefix includes the prefix; acquiring, by the switching device according to the prefix, a bit field that is in the packet and that is used for matching; and performing matching, by the switching device, between a value of the bit field and a data parameter of the match field of the generic flow entry corresponding to the prefix. The embodiments of the present invention can reduce a quantity of times of generic field extraction from a packet and improve processing efficiency.

Abstract translation: 本发明的实施例提供了一种分组处理方法，装置和系统。 该方法包括：通过交换设备接收在前缀和通用流条目之间的切换设备中具有对应关系的分组，其中通过使用前缀作为索引来创建对应关系，以及匹配字段 与前缀相对应的通用流条目包括前缀; 由切换装置根据前缀获取位于分组中并用于匹配的比特字段; 以及通过所述切换装置执行所述比特字段的值和与所述前缀相对应的所述通用流入口的匹配字段的数据参数的匹配。 本发明的实施例可以减少从分组中提取一般场的次数，并提高处理效率。

公开(公告)号：US20180367649A1

公开(公告)日：2018-12-20

申请号：US16050434

申请日：2018-07-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Pengcheng TANG ,  Yan WANG ,  Wei ZHOU ,  Hui NI

IPC: H04L29/06 ,  H04L12/721

CPC classification number: H04L69/22 ,  H04L45/38

Abstract: A packet processing method, device and system includes: receiving, by a switching device, a packet, where there is a correspondence in the switching device between a prefix and a generic flow entry, where the correspondence is created by using the prefix as an index, and a match field of the generic flow entry corresponding to the prefix includes the prefix; acquiring, by the switching device according to the prefix, a bit field that is in the packet and that is used for matching; and performing matching, by the switching device, between a value of the bit field and a data parameter of the match field of the generic flow entry corresponding to the prefix.

公开(公告)号：US20170208001A1

公开(公告)日：2017-07-20

申请号：US15477917

申请日：2017-04-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Pengcheng TANG ,  Konstantinos PENTIKOUSIS ,  Wei ZHOU

IPC: H04L12/717 ,  H04L12/851 ,  H04L12/813 ,  H04L29/08

CPC classification number: H04W36/0066 ,  H04L45/42 ,  H04L45/64 ,  H04L47/20 ,  H04L47/2483 ,  H04L67/1097 ,  H04L67/2842 ,  H04W36/023 ,  H04W76/36

Abstract: A network storage method, a switch device, and a controller are provided. The method is applicable to a controller based on OpenFlow protocol. The method includes: determining, by the controller, that a first switching equipment is to cache data requested by a first data packet; and notifying, by the controller, the first switching equipment to cache the data requested by the first data packet, and notifying the first switching equipment to establish a first flow table entry according to issued match information corresponding to the first data packet and issued action instruction information corresponding to the first data packet, wherein the action instruction information corresponding to the first data packet is adapted to instruct the first switching equipment to forward the data cached in the first switching equipment and requested by the first data packet.

公开(公告)号：US20170078184A1

公开(公告)日：2017-03-16

申请号：US15360129

申请日：2016-11-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Pengcheng TANG ,  Wei Zhou

IPC: H04L12/751 ,  H04L12/721 ,  H04L12/715

CPC classification number: H04L45/02 ,  H04L45/38 ,  H04L45/64

Abstract: A flow table management method, devices, and systems. The flow table management method includes: generating, by a software defined network controller, a first flow table entry, where a first field set in the first flow table entry carries an index of an actual value in the first field set, and the first field set includes N fields; and sending, by the software defined network controller, an OpenFlow protocol message to an OpenFlow switch, where the OpenFlow protocol message carries the first flow table entry. The technical solution in the embodiments of the present invention helps reduce a data volume of flow table entries delivered by an SDN controller to an OpenFlow switch, thereby reducing overheads of a control channel to reduce a congestion risk of the control channel, and reducing occupied network processing resources of the SDN controller and the OpenFlow switch to deliver the flow table entries.

Abstract translation: 流表管理方法，设备和系统。 流表管理方法包括：由软件定义的网络控制器生成第一流表条目，其中第一流表条目中设置的第一字段携带第一字段集中的实际值的索引和第一字段 集合包括N个字段; 并且由软件定义的网络控制器将OpenFlow协议消息发送到OpenFlow交换机，其中OpenFlow协议消息携带第一流表条目。 本发明实施例中的技术方案有助于将由SDN控制器传送的流表表项的数据量减少到OpenFlow交换机，从而减少控制信道的开销以减少控制信道的拥塞风险，并减少占用网络 处理SDN控制器和OpenFlow交换机的资源，以提供流表条目。

公开(公告)号：US20150208292A1

公开(公告)日：2015-07-23

申请号：US14670062

申请日：2015-03-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Pengcheng TANG ,  Konstantinos PENTIKOUSIS ,  Wei ZHOU

IPC: H04W36/00 ,  H04W76/06

CPC classification number: H04W36/0066 ,  H04L45/42 ,  H04L45/64 ,  H04L47/20 ,  H04L47/2483 ,  H04L67/1097 ,  H04L67/2842 ,  H04W36/023 ,  H04W76/36

Abstract: A method for user detachment when a handover or change occurs in a heterogeneous network is provided. The method includes: a user equipment (UE) is handed over or switched from a source network to a target network; a network element on a network side determines whether to detach the UE from the source network, and if yes, the network element on the network side detaches the UE from the source network. A system and a device for user detachment when a handover or change occurs in a heterogeneous network, and another method for user detachment when a handover or change occurs in a heterogeneous network are also provided.

公开(公告)号：US20160330045A1

公开(公告)日：2016-11-10

申请号：US15217423

申请日：2016-07-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Pengcheng TANG ,  Wei ZHOU

IPC: H04L12/46 ,  H04L12/755 ,  H04L29/12 ,  H04L12/741

CPC classification number: H04L12/4633 ,  H04L12/462 ,  H04L45/021 ,  H04L45/745 ,  H04L61/6022

Abstract: A packet tunneling method, a switching device, and a control device are provided. The method includes: a switching device receives a tunnel flow table entry delivered by the control device, where the tunnel flow table entry is used to determine a to-be-tunneled packet and indicate a tunneling operation to be performed on the to-be-tunneled packet; determines according to the tunnel flow table entry, whether the received first packet is the to-be-tunneled packet; and when the first packet is the to-be-tunneled packet, and tunnels the first packet according to the tunnel flow table entry. Because the switching device supports a tunnel flow table, when a packet is transmitted in a mobile packet network by using the OpenFlow protocol, tunnel encapsulation or decapsulation can be performed on the packet by using the tunnel flow table entry delivered by the control device, thereby enhancing a packet processing capability in the mobile packet network.

Abstract translation: 提供分组隧道方法，交换设备和控制设备。 该方法包括：交换设备接收由控制设备传送的隧道流表项，其中隧道流表项用于确定待隧道分组，并指示要在待配置的隧道上进行的隧道操作， 隧道包 根据隧道流表项确定接收到的第一个分组是否为待隧道分组; 并且当第一分组是待隧道分组时，并且根据隧道流表条目隧道传送第一分组。 因为交换设备支持隧道流表，当使用OpenFlow协议在移动分组网中传输分组时，可以通过使用由控制设备传送的隧道流表条目在分组上执行隧道封装或解封装，从而 提高移动分组网络中的分组处理能力。