Patents by Inventor Yihong Xiu
Yihong Xiu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10880109Abstract: A method, device and system for forwarding a multicast data packet are provided. The system is an extended bridge constructed by a controlling bridge and a port extender. The controlling bridge transmits a multicast data packet with an ETAG having a multicast ECID via a cascade port, and the multicast ECID directs to egress ports in different VLANs of the multicast group on a port extender connected with the cascade port. The port extender receives the packet with the ETAG via an upstream port connected with the controlling bridge, searches for multicast duplication information matching the multicast ECID, duplicates the packet for each egress port based on the multicast duplication information, removes the ETAG of each copy of the packet, adds a port identification and a VLAN identification of each egress port to each copy of the packet, and transmits the packet containing the VLAN identification via each egress port.Type: GrantFiled: November 29, 2017Date of Patent: December 29, 2020Assignee: NEW H3C TECHNOLOGIES CO., LTD.Inventors: Mengtao Zhou, Zhenglin Qi, Yihong Xiu, Daogui Liu, Yuchao Zhu, Gao Song
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Patent number: 10797991Abstract: In an extended bridge comprising a controlling bridge and a port extender, the controlling bridge associates an aggregation port of a link aggregation group with a plurality of extended ports connecting to a same terminal on the port extender, and assigns an aggregation port identifier to the aggregation port. The controlling bridge associates an extended port identifier of each of the plurality extended ports and a cascaded port connecting to the port extender with the aggregation port. The controlling bridge associates the aggregation port with the aggregation port identifier and the cascaded port to determine to add the aggregation port identifier into a downstream unicast packet of which an egress port exiting the extended bridge is the aggregation port and to via determine to send the downstream unicast packet with the aggregation port identifier via the cascaded port.Type: GrantFiled: March 31, 2017Date of Patent: October 6, 2020Assignee: NEW H3C TECHNOLOGIES CO., LTD.Inventors: Mengtao Zhou, Zhenglin Qi, Yihong Xiu, Daogui Liu
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Publication number: 20190296924Abstract: A method, device and system for forwarding a multicast data packet are provided. The system is an extended bridge constructed by a controlling bridge and a port extender. The controlling bridge transmits a multicast data packet with an ETAG having a multicast ECID via a cascade port, and the multicast ECID directs to egress ports in different VLANs of the multicast group on a port extender connected with the cascade port. The port extender receives the packet with the ETAG via an upstream port connected with the controlling bridge, searches for multicast duplication information matching the multicast ECID, duplicates the packet for each egress port based on the multicast duplication information, removes the ETAG of each copy of the packet, adds a port identification and a VLAN identification of each egress port to each copy of the packet, and transmits the packet containing the VLAN identification via each egress port.Type: ApplicationFiled: November 29, 2017Publication date: September 26, 2019Inventors: Mengtao ZHOU, Zhenglin QI, Yihong XIU, Daogui LIU, Yuchao ZHU, Gao SONG
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Publication number: 20190089625Abstract: In an extended bridge comprising a controlling bridge and a port extender, the controlling bridge associates an aggregation port of a link aggregation group with a plurality of extended ports connecting to a same terminal on the port extender, and assigns an aggregation port identifier to the aggregation port. The controlling bridge associates an extended port identifier of each of the plurality extended ports and a cascaded port connecting to the port extender with the aggregation port. The controlling bridge associates the aggregation port with the aggregation port identifier and the cascaded port to determine to add the aggregation port identifier into a downstream unicast packet of which an egress port exiting the extended bridge is the aggregation port and to determine to send the downstream unicast packet with the aggregation port identifier via the cascaded port.Type: ApplicationFiled: March 31, 2017Publication date: March 21, 2019Inventors: Mengtao ZHOU, Zhenglin QI, Yihong XIU, Daogui LIU
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Patent number: 9467397Abstract: According to an example, after a primary port of a primary switch and a secondary port of a secondary switch are connected to each other and the primary port is configured to operate in a fabric mode, the primary switch may send a mode switch request packet to the secondary switch through the primary port. The secondary switch may change the secondary port from operating in an Ethernet mode to the fabric mode based on information contained in the mode switch request packet and may send a mode switch response packet to the primary switch.Type: GrantFiled: October 31, 2013Date of Patent: October 11, 2016Assignee: HANGZHOU H3C TECHNOLOGIES CO., LTD.Inventors: Yihong Xiu, Zhenglin Qi, Daogui Liu, Yutao Li
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Publication number: 20150350111Abstract: According to an example, after a primary port of a primary switch and a secondary port of a secondary switch are connected to each other and the primary port is configured to operate in a fabric mode, the primary switch may send a mode switch request packet to the secondary switch through the primary port. The secondary switch may change the secondary port from operating in an Ethernet mode to the fabric mode based on information contained in the mode switch request packet and may send a mode switch response packet to the primary switch.Type: ApplicationFiled: October 31, 2013Publication date: December 3, 2015Inventors: Yihong XIU, Zhenglin QI, Daogui LIU, Yutao LI
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Patent number: 7263559Abstract: Disclosed is a method for preventing IP address cheating in dynamic address allocation. Firstly, check the source MAC address and the source IP address involved in an ARP packet sent from a subscriber terminal, i.e., detect whether there is a matching item in the legal subscriber address table; if so, process it normally, otherwise discard the ARP packet. In this way, an illegal subscriber cannot access to network through IP address cheating, but a legal subscriber can operate normally and continuously. For a subscriber terminal with a static IP address, a static item table is set in the legal subscriber address by manual configuration. When a new subscriber terminal asks for being allocated an IP address, check whether the IP address to be allocated has been set as a static item; if so, inform the subscriber terminal of applying for another IP address.Type: GrantFiled: June 23, 2003Date of Patent: August 28, 2007Assignee: Huawei Technologies Co., Ltd.Inventors: Xi Yao, Yihong Xiu, Ning Pan
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Publication number: 20040006712Abstract: Disclosed is a method for preventing IP address cheating in dynamic address allocation. Firstly, check the source MAC address and the source IP address involved in an ARP packet sent from a subscriber terminal, i.e., detect whether there is a matching item in the legal subscriber address table; if so, process it normally, otherwise discard the ARP packet. In this way, an illegal subscriber cannot access to network through IP address cheating, but a legal subscriber can operate normally and continuously. For a subscriber terminal with a static IP address, a static item table is set in the legal subscriber address by manual configuration. When a new subscriber terminal asks for being allocated an IP address, check whether the IP address to be allocated has been set as a static item; if so, inform the subscriber terminal of applying for another IP address.Type: ApplicationFiled: June 23, 2003Publication date: January 8, 2004Applicant: Huawei Technologies Co., Ltd.Inventors: Xi Yao, Yihong Xiu, Ning Pan
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Patent number: RE42078Abstract: Disclosed is a method for preventing IP address cheating in dynamic address allocation. Firstly, check the source MAC address and the source IP address involved in an ARP packet sent from a subscriber terminal, i.e., detect whether there is a matching item in the legal subscriber address table; if so, process it normally, otherwise discard the ARP packet. In this way, an illegal subscriber cannot access to network through IP address cheating, but a legal subscriber can operate normally and continuously. For a subscriber terminal with a static IP address, a static item table is set in the legal subscriber address by manual configuration. When a new subscriber terminal asks for being allocated an IP address, check whether the IP address to be allocated has been set as a static item; if so, inform the subscriber terminal of applying for another IP address.Type: GrantFiled: June 15, 2009Date of Patent: January 25, 2011Assignee: Huawei Technologies Co., Ltd.Inventors: Xi Yao, Yihong Xiu, Ning Pan