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公开(公告)号：US10750499B2
公开(公告)日：2020-08-18
申请号：US15380313
申请日：2016-12-15
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jialiang Ma , Weilian Jiang , Liang Tang , Bin Wang
Abstract: Embodiments of the present application provide a method, device and system for controlling an air interface resource and relates to the field of communications, which improves air interface resource utilization. The method includes: when a core network device or user equipment detects that service data is not transmitted over a communication channel between the two devices by using an air interface resource, switching a first frequency of sending a hello packet to a peer device to a second frequency, and sending a frequency switching message to instruct the peer device also to switch the first frequency of sending a hello packet to the second frequency, so that when the hello packet is not detected within a packet detection period, an access network device releases an air interface resource occupied by a first communication channel.
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公开(公告)号：US20180069792A1
公开(公告)日：2018-03-08
申请号：US15795587
申请日：2017-10-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yuan Gao , Tao Han , Weilian Jiang
IPC: H04L12/741 , H04L12/46 , H04L12/715
CPC classification number: H04L45/745 , H04L12/46 , H04L12/4633 , H04L12/4641 , H04L12/4675 , H04L45/04 , H04L49/70 , H04L2012/4629
Abstract: A packet processing method, and a device and a system includes receiving, by a provider edge (PE) device, a first virtual extensible local area network (VxLAN) encapsulated packet sent by a network virtualization edge (NVE) device, where the PE device and the NVE device are located in a same data center (DC), and the first VxLAN encapsulated packet includes a first VxLAN network identifier (VNI); parsing, by the PE device, the first VxLAN encapsulated packet to obtain the first VNI; obtaining, according to a correspondence between a VNI and a virtual routing and forwarding (VRF) table, a first VRF table that corresponds to the first VNI; searching, by the PE device, the first VRF table for a route according to a destination Internet Protocol (IP) address of the first VxLAN encapsulated packet; and forwarding the first VxLAN encapsulated packet.
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Patent Agency Ranking
公开(公告)号：US20170150401A1
公开(公告)日：2017-05-25
申请号：US15423922
申请日：2017-02-03
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yaoliang Guo , Liang Tang , Weilian Jiang , Hairong Ke
CPC classification number: H04W28/085 , H04L47/125 , H04L47/24 , H04L47/263 , H04L47/29 , H04W28/0236 , H04W28/20
Abstract: Embodiments of the present application disclose a traffic offloading method and apparatus. The method includes: calculating, by a first network node, a first packet loss rate of a first forwarding tunnel in a preset period; when the first packet loss rate is higher than a first preset threshold, reducing a rated bandwidth of the first forwarding tunnel by a first preset bandwidth, so as to obtain a first available bandwidth; and when traffic forwarded over the first forwarding tunnel exceeds the first available bandwidth, offloading excess to-be-forwarded traffic to the second data link for forwarding. Because the first available bandwidth is less than an original available bandwidth of the first forwarding tunnel, the to-be-forwarded traffic exceeds the first available bandwidth at an earlier time, traffic is offloaded by the first network node in advance, and a serious packet loss is less likely to occur before traffic offloading.
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公开(公告)号：US11337217B2
公开(公告)日：2022-05-17
申请号：US16925073
申请日：2020-07-09
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jialiang Ma , Weilian Jiang , Liang Tang , Bin Wang
Abstract: Embodiments of the present application provide a method, device and system for controlling an air interface resource and relates to the field of communications, which improves air interface resource utilization. The method includes: when a core network device or user equipment detects that service data is not transmitted over a communication channel between the two devices by using an air interface resource, switching a first frequency of sending a hello packet to a peer device to a second frequency, and sending a frequency switching message to instruct the peer device also to switch the first frequency of sending a hello packet to the second frequency, so that when the hello packet is not detected within a packet detection period, an access network device releases an air interface resource occupied by a first communication channel.
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公开(公告)号：US10476796B2
公开(公告)日：2019-11-12
申请号：US15795587
申请日：2017-10-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yuan Gao , Tao Han , Weilian Jiang
IPC: H04L12/741 , H04L12/46 , H04L12/715 , H04L12/931
Abstract: A packet processing method, and a device and a system includes receiving, by a provider edge (PE) device, a first virtual extensible local area network (VxLAN) encapsulated packet sent by a network virtualization edge (NVE) device, where the PE device and the NVE device are located in a same data center (DC), and the first VxLAN encapsulated packet includes a first VxLAN network identifier (VNI); parsing, by the PE device, the first VxLAN encapsulated packet to obtain the first VNI; obtaining, according to a correspondence between a VNI and a virtual routing and forwarding (VRF) table, a first VRF table that corresponds to the first VNI; searching, by the PE device, the first VRF table for a route according to a destination Internet Protocol (IP) address of the first VxLAN encapsulated packet; and forwarding the first VxLAN encapsulated packet.
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公开(公告)号：US10419341B2
公开(公告)日：2019-09-17
申请号：US15933274
申请日：2018-03-22
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Weilian Jiang , Yinjuan Zhang , Yuan Gao
IPC: H04L12/56 , H04L12/741 , H04L12/713 , H04L12/931 , H04L29/12
Abstract: Embodiments of the disclosure relate to a forwarding entry establishment method for a VXLAN. A data center of the VXLAN includes a first layer 3 gateway device, a second layer 3 gateway device, and a first layer 2 gateway device separately connected to the first layer 3 gateway device and the second layer 3 gateway device. The first layer 2 gateway device is connected to a first host. The method includes: establishing, by the first layer 3 gateway device by using an exclusive IP address, an exclusive MAC address, and an exclusive VTEP identifier, a forwarding entry used for communication with the first host. In the embodiments of the disclosure, when one host directly communicates with a plurality of layer 3 gateway devices, a forwarding entry used for communication between the layer 3 gateway devices and the host is correctly established.
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公开(公告)号：US10251091B2
公开(公告)日：2019-04-02
申请号：US15423922
申请日：2017-02-03
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yaoliang Guo , Liang Tang , Weilian Jiang , Hairong Ke
IPC: H04W28/08 , H04W28/02 , H04W28/20 , H04L12/803 , H04L12/851 , H04L12/825 , H04L12/801
Abstract: Embodiments of the present application disclose a traffic offloading method and apparatus. The method includes: calculating, by a first network node, a first packet loss rate of a first forwarding tunnel in a preset period; when the first packet loss rate is higher than a first preset threshold, reducing a rated bandwidth of the first forwarding tunnel by a first preset bandwidth, so as to obtain a first available bandwidth; and when traffic forwarded over the first forwarding tunnel exceeds the first available bandwidth, offloading excess to-be-forwarded traffic to the second data link for forwarding. Because the first available bandwidth is less than an original available bandwidth of the first forwarding tunnel, the to-be-forwarded traffic exceeds the first available bandwidth at an earlier time, traffic is offloaded by the first network node in advance, and a serious packet loss is less likely to occur before traffic offloading.
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