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公开(公告)号:US20180198712A1
公开(公告)日:2018-07-12
申请号:US15910546
申请日:2018-03-02
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Yuan Gao , Xinpeng Li , Yongli Yuan
IPC: H04L12/741 , H04L12/707 , H04L29/12 , H04L12/66
CPC classification number: H04L45/745 , H04L12/66 , H04L45/24 , H04L61/103 , H04L61/2007 , H04L61/6022
Abstract: A method and gateway obtain a route according to a requirement. The method includes: a first gateway receives a first packet; the first gateway searches a forwarding table for a next hop of a first IP address in the first packet, wherein the search fails; the first gateway sends a second packet carrying the first IP address to at least one gateway; the first gateway receives a third packet from a second gateway; and the first gateway writes an address of the second gateway into the forwarding table as a next hop address of the first IP address.
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公开(公告)号:US12073243B2
公开(公告)日:2024-08-27
申请号:US17106179
申请日:2020-11-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Yuan Gao , Xingguo Sun , Wenhui Liang
IPC: G06F9/48 , G06F9/455 , H04L12/46 , H04L45/64 , H04L61/103 , H04L61/4552 , H04L61/58 , G06F9/4401 , H04L101/622
CPC classification number: G06F9/4856 , G06F9/45558 , H04L12/4633 , H04L12/4641 , H04L45/64 , H04L61/103 , H04L61/4552 , H04L61/58 , G06F9/4411 , G06F2009/4557 , G06F2009/45579 , G06F2009/45595 , H04L2101/622
Abstract: Embodiments of this application provide a method and an apparatus for determining virtual machine VM migration. The method includes: after a VM is migrated, sending a gratuitous ARP packet or a RARP packet to an in-migration VTEP device; obtaining, by the VTEP device, a MAC address of the VM, searching an ARP cache table based on the MAC address, and obtaining an IP address of the VM; and constructing an ARP unicast request packet by using the IP address as a destination IP address, and if the VTEP device receives an ARP response packet sent by the VM for the ARP unicast request packet, determining that the VM is migrated.
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公开(公告)号:US11973795B2
公开(公告)日:2024-04-30
申请号:US17138205
申请日:2020-12-30
Applicant: Huawei Technologies Co., Ltd.
Inventor: Yuan Gao , Haibo Wang
IPC: H04L9/40 , H04L45/00 , H04L45/745 , H04L47/70
CPC classification number: H04L63/1441 , H04L45/66 , H04L45/72 , H04L45/745 , H04L47/825 , H04L63/0236
Abstract: A BGP message sending method includes: determining, by a first network device, that a host identified by a first MAC address is an attacker; generating, by the first network device, a BGP message, where the BGP message includes the first MAC address and indication information, and the indication information is used to indicate that the host identified by the first MAC address is the attacker; and sending, by the first network device, the BGP message to a second network device.
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公开(公告)号:US11683272B2
公开(公告)日:2023-06-20
申请号:US17411505
申请日:2021-08-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Yuan Gao , Tiyu Huang , Wanmei Zeng
IPC: H04L45/586 , H04L45/745 , H04L45/24 , H04L45/42 , H04L45/00
CPC classification number: H04L45/745 , H04L45/24 , H04L45/42 , H04L45/566 , H04L45/586
Abstract: This application discloses a packet processing method that is applied to an EVPN, where the EVPN includes a first network device and a second network device. The method includes: receiving, by the first network device, a VXLAN packet sent by the second network device, where the VXLAN packet includes a path identifier and a service packet, the path identifier indicates a path from the first network device to a VNF device through an IPU, and the service packet includes a destination IP address; determining, by the first network device based on the path identifier, first routing information; and forwarding, by the first network device, the service packet to the VNF device via the IPU based on the first routing information and the destination IP address.
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35.
公开(公告)号:US20220255837A1
公开(公告)日:2022-08-11
申请号:US17731917
申请日:2022-04-28
Applicant: Huawei Technologies Co., Ltd.
Inventor: Yuezhuo Sun , Ying Xie , Yuan Gao
Abstract: A first data center interconnection (DCI) device in a first data center receives a first packet from a Border Gateway Protocol Ethernet virtual private network (BGP EVPN) neighbor, where the first packet includes routing information of a first forwarding instance of an access device in the first data center and an export route target of the first forwarding instance. The first DCI device obtains a second forwarding instance that corresponds to the first packet, where an import route target of the second forwarding instance matches the export route target of the first forwarding instance. The first DCI device generates a second packet that includes routing information of the second forwarding instance and an export route target of the second forwarding instance, which includes a DCI interworking route target. The first DCI device sends the second packet to a second DCI device in a second data center.
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公开(公告)号:US11356372B2
公开(公告)日:2022-06-07
申请号:US17027476
申请日:2020-09-21
Applicant: Huawei Technologies Co., Ltd.
Inventor: Yuan Gao , Wenhui Li , Yongkang Zhang
IPC: H04L12/803 , H04L47/125 , H04L12/46 , H04L47/34 , H04L69/22
Abstract: This application provides a data traffic processing method, a device, and a system. The method includes: receiving, by a first network device on a first link, a first VXLAN packet sent by a second network device, where the first VXLAN packet includes a first sequence number and a first service packet; decapsulating, by the first network device, the first VXLAN packet; receiving, by the first network device on a second link, a second VXLAN packet sent by the second network device, where the second VXLAN packet includes a second sequence number and a second service packet; and when the first network device determines that the second sequence number is a next sequence number of the first sequence number, decapsulating, by the first network device, the second VXLAN packet.
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公开(公告)号:US20220122619A1
公开(公告)日:2022-04-21
申请号:US17563538
申请日:2021-12-28
Applicant: Huawei Technologies Co., Ltd.
Inventor: Eyal Shlomot , Yuan Gao , Bin Wang
IPC: G10L19/02 , G10L19/008 , H04S7/00 , H04S1/00
Abstract: A stereo encoding method includes: performing downmix processing on a left channel signal of a current frame and a right channel signal of the current frame to obtain a primary channel signal of the current frame and a secondary channel signal of the current frame; and when determining to perform differential encoding on a pitch period of the secondary channel signal, performing differential encoding on the pitch period of the secondary channel signal using an estimated pitch period value of the primary channel signal to obtain a pitch period index value of the secondary channel signal, where the pitch period index value of the secondary channel signal is used to generate a to-be-sent stereo encoded bitstream.
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公开(公告)号:US11234207B2
公开(公告)日:2022-01-25
申请号:US16403117
申请日:2019-05-03
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Jiantao Xue , Kailong Wang , Yuan Gao , Jing Han , Yueqi Wang
Abstract: Embodiments of the present disclosure disclose a positioning information transmission method, a related device, and a system. The positioning information transmission method includes: determining an uplink subframe for carrying an uplink signal and a downlink subframe for carrying a downlink signal; determining first measurement information and second measurement information; and sending the first measurement information and the second measurement information to a positioning server, for locating a terminal device by the positioning server. Positioning accuracy can be improved by using the embodiments of the present disclosure.
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公开(公告)号:US11075774B2
公开(公告)日:2021-07-27
申请号:US16361049
申请日:2019-03-21
Applicant: Huawei Technologies Co., Ltd.
Inventor: Yuan Gao , Yuming Zhao , Wenhui Li
IPC: H04L12/18 , H04L12/705 , H04L12/46 , H04L12/833 , H04L12/709
Abstract: This application provides a VXLAN packet processing method, a device, and a system. After determining that a data packet sent by a CE device is a BUM packet, a PE device encapsulates the BUM packet to generate a VXLAN packet including an ESI label and a VXLAN packet including a BUM traffic label. The VXLAN packet including the ESI label is sent to an active-active gateway, so that the gateway can block forwarding of traffic to the CE device by using an interface configured with an ESI, to avoid a loop between the PE device and the CE device. The VXLAN packet including the BUM traffic label is sent to a remote PE, to block forwarding of the VXLAN packet to the CE device by using a secondary DF interface, thereby avoiding a multi-packet problem.
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公开(公告)号:US20190074946A1
公开(公告)日:2019-03-07
申请号:US16179889
申请日:2018-11-03
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Jiantao Xue , Ye Si , Anjian Li , Yuan Gao
Abstract: Embodiments of the present disclosure provide a resource allocation method, a network-side device, and a terminal device. The resource allocation method includes: allocating, by a network-side device, a first resource, where the first resource is used to carry a positioning reference signal, and the positioning reference signal is used to perform positioning on a terminal device; determining, by the network-side device, a first allocation mode of the first resource, where the first allocation mode is configuring the positioning reference signal in all unoccupied locations of the first resource; and sending, by the network-side device, the positioning reference signal on the first resource in the first allocation mode, or receiving, by the network-side device, the positioning reference signal on the first resource in the first allocation mode.
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