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公开(公告)号：US20210119921A1
公开(公告)日：2021-04-22
申请号：US17135698
申请日：2020-12-28
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Jingrong Xie , Yang Xia , Gang Yan , Shunwan Zhuang
IPC: H04L12/803 , H04L12/761 , H04L12/741
Abstract: The method includes: generating, by a first device, a first packet including a BIER header, where the BIER header includes entropy, and the entropy includes a first part and a second part; determining, by the first device based on the first packet, that there are a plurality of forwarding entries used to forward the first packet; selecting, by the first device, one forwarding entry from the plurality of forwarding entries based on the first part, where the selected forwarding entry includes an address of a second device, and the second device is a next-hop device of the first device; and sending, by the first device, the first packet to the second device, where the second part is used by the second device to select, from a plurality of forwarding entries used to forward the first packet, a forwarding entry used by the second device to forward the first packet.
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Patent Agency Ranking
公开(公告)号：US12231329B2
公开(公告)日：2025-02-18
申请号：US17703614
申请日：2022-03-24
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Cheng Li , Zhenbin Li , Yang Xia , Taixu Tian , Yaqun Xiao
IPC: H04L45/42 , H04L45/00 , H04L45/12 , H04L45/122
Abstract: A method for processing a packet on an SR network is provided, including: receiving a packet, where a packet header of the packet includes a destination address field, a first pointer, a second pointer, and a list used to process the packet, the list includes a plurality of sequentially arranged identifiers, and a value of the first pointer and a value of the second pointer jointly indicate a location of a first identifier in the plurality of identifiers in the list; determining the first identifier based on the value of the first pointer and the value of the second pointer; and copying the first identifier to the destination address field. In this method, a CL pointer is set in the packet header to jointly form a two-dimensional pointer with an SL pointer, to indicate a location of a C-SID in a SID list.
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公开(公告)号：US11997004B2
公开(公告)日：2024-05-28
申请号：US17701180
申请日：2022-03-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jingrong Xie , Yang Xia , Yisong Liu , Liangge Li
CPC classification number: H04L45/16 , H04L12/4633 , H04L45/50 , H04L45/70 , H04L45/72
Abstract: A reverse path forwarding (RPF) check method includes, after receiving a multicast data packet from a head node, a tail node may obtain a multicast source address, a multicast group address and encapsulation information that are carried in the multicast data packet. The tail node obtains, based on the multicast source address, the multicast group address, and a first correspondence, a first identifier identifying an upstream multicast hop (UMH) node corresponding to the multicast data packet. The tail node may further obtain, based on the encapsulation information of the multicast data packet and a second correspondence, a second identifier identifying the head node corresponding to the multicast data packet. After obtaining the first identifier and the second identifier, the tail node may perform an RPF check based on the first identifier and the second identifier.
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公开(公告)号：US20220217075A1
公开(公告)日：2022-07-07
申请号：US17701180
申请日：2022-03-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jingrong Xie , Yang Xia , Yisong Liu , Liangge Li
Abstract: A reverse path forwarding (RPF) check method includes, after receiving a multicast data packet from a head node, a tail node may obtain a multicast source address, a multicast group address and encapsulation information that are carried in the multicast data packet. The tail node obtains, based on the multicast source address, the multicast group address, and a first correspondence, a first identifier identifying an upstream multicast hop (UMH) node corresponding to the multicast data packet. The tail node may further obtain, based on the encapsulation information of the multicast data packet and a second correspondence, a second identifier identifying the head node corresponding to the multicast data packet. After obtaining the first identifier and the second identifier, the tail node may perform an RPF check based on the first identifier and the second identifier.
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公开(公告)号：US20220191310A1
公开(公告)日：2022-06-16
申请号：US17689284
申请日：2022-03-08
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jingrong Xie , Yang Xia , Gang Yan , Zhibo Hu
Abstract: An IPv6 packet processing method and apparatus where a first routing device obtains an IPv6 packet, and sends the IPv6 packet to a next-hop routing device. The IPv6 packet includes an IPv6 extension header that includes preceding general indication information, where the preceding general indication information includes first information, and where the first information is used to indicate to process the IPv6 packet only on a data plane of a routing device and not to send the IPv6 packet to a CPU.
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公开(公告)号：US20220131808A1
公开(公告)日：2022-04-28
申请号：US17646963
申请日：2022-01-04
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jingrong Xie , Yang Xia , Fanghong Duan , Heng Wang , Biyi Lin
Abstract: A destination node device starts a timer when the destination node device determines that a network topology changes; before the timer expires, the destination node device forwards the BIER packet by using an old forwarding table and establishes a new forwarding table, where the old forwarding table is a forwarding table used by the destination node device before the network topology changes, the new forwarding table is a forwarding table established by the destination node device based on the changed network topology; and after the timer expires, the destination node device switches the old forwarding table to the new forwarding table, and forwards the BIER packet according to the new forwarding table.
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