Patents by Inventor Renhai Zhang
Renhai Zhang 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: 9397925Abstract: A method and an apparatus for advertising border connection information of autonomous system are disclosed. Moreover, the method includes: establishing and maintaining, by a border node of the autonomous system, the border connection information of the autonomous system; flooding the border connection information within the autonomous system; and receiving, by nodes of the autonomous system, the border connection information. The method and the apparatus for advertising border connection information of autonomous system of embodiments of the present invention may adapt to dynamic change of network topology, and dynamically advertise the border connection information of the autonomous system within the system in time, so as to optimize networks and improve quality of service of the networks.Type: GrantFiled: October 28, 2015Date of Patent: July 19, 2016Assignee: HUAWEI TECHNOLOGIES CO.,LTDInventors: Hongmiao Xia, Renhai Zhang, Guoyi Chen, Xingfeng Jiang
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Patent number: 9276836Abstract: A method and an apparatus for advertising border connection information of autonomous system are disclosed. Moreover, the method includes: establishing and maintaining, by a border node of the autonomous system, the border connection information of the autonomous system; flooding the border connection information within the autonomous system; and receiving, by nodes of the autonomous system, the border connection information. The method and the apparatus for advertising border connection information of autonomous system of embodiments of the present invention may adapt to dynamic change of network topology, and dynamically advertise the border connection information of the autonomous system within the system in time, so as to optimize networks and improve quality of service of the networks.Type: GrantFiled: August 27, 2012Date of Patent: March 1, 2016Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Hongmiao Xia, Renhai Zhang, Guoyi Chen, Xingfeng Jiang
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Publication number: 20160050138Abstract: A method and an apparatus for advertising border connection information of autonomous system are disclosed. Moreover, the method includes: establishing and maintaining, by a border node of the autonomous system, the border connection information of the autonomous system; flooding the border connection information within the autonomous system; and receiving, by nodes of the autonomous system, the border connection information. The method and the apparatus for advertising border connection information of autonomous system of embodiments of the present invention may adapt to dynamic change of network topology, and dynamically advertise the border connection information of the autonomous system within the system in time, so as to optimize networks and improve quality of service of the networks.Type: ApplicationFiled: October 28, 2015Publication date: February 18, 2016Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Hongmiao Xia, Renhai Zhang, Guoyi Chen, Xingfeng Jiang
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Publication number: 20120320796Abstract: A method and an apparatus for advertising border connection information of autonomous system are disclosed. Moreover, the method includes: establishing and maintaining, by a border node of the autonomous system, the border connection information of the autonomous system; flooding the border connection information within the autonomous system; and receiving, by nodes of the autonomous system, the border connection information. The method and the apparatus for advertising border connection information of autonomous system of embodiments of the present invention may adapt to dynamic change of network topology, and dynamically advertise the border connection information of the autonomous system within the system in time, so as to optimize networks and improve quality of service of the networks.Type: ApplicationFiled: August 27, 2012Publication date: December 20, 2012Applicant: Huawei Technologies Co., Ltd.Inventors: Hongmiao Xia, Renhai Zhang, Guoyi Chen, Xingfeng Jiang
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Patent number: 8279881Abstract: A method for route updating includes: a. determining more than one route in accordance with a predetermined preset mechanism and sending the determined more than one route to a client and/or a non-client, by a reflector in a route advertisement, and saving more than one route reaching the same destination address by the client and/or the non-client; and b. sending to the client and/or the non-client a message carrying information on the next hop of the route to be withdrawn, by the reflector in a withdrawal of a route and withdrawing the corresponding route for route updating in accordance with the information on the next hop carried in the message, by the client/the non-client. A system for route updating and a router reflector is also provided.Type: GrantFiled: January 4, 2008Date of Patent: October 2, 2012Assignee: Huawei Technologies Co., Ltd.Inventors: Renhai Zhang, Hui Ni, Yuan Rao
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Patent number: 8270317Abstract: A method and an apparatus for advertising border connection information of autonomous system are disclosed. Moreover, the method includes: establishing and maintaining, by a border node of the autonomous system, the border connection information of the autonomous system; flooding the border connection information within the autonomous system; and receiving, by nodes of the autonomous system, the border connection information. The method and the apparatus for advertising border connection information of autonomous system of embodiments of the present invention may adapt to dynamic change of network topology, and dynamically advertise the border connection information of the autonomous system within the system in time, so as to optimize networks and improve quality of service of the networks.Type: GrantFiled: May 8, 2009Date of Patent: September 18, 2012Assignee: Huawei Technologies Co., Ltd.Inventors: Hongmiao Xia, Renhai Zhang, Guoyi Chen, Xingfeng Jiang
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Patent number: 8125929Abstract: A method and an apparatus for advertising border connection information of autonomous system are disclosed. Moreover, the method includes: establishing and maintaining, by a border node of the autonomous system, the border connection information of the autonomous system; flooding the border connection information within the autonomous system; and receiving, by nodes of the autonomous system, the border connection information. The method and the apparatus for advertising border connection information of autonomous system of embodiments of the present invention may adapt to dynamic change of network topology, and dynamically advertise the border connection information of the autonomous system within the system in time, so as to optimize networks and improve quality of service of the networks.Type: GrantFiled: September 30, 2010Date of Patent: February 28, 2012Assignee: Huawei Technologies Co., Ltd.Inventors: Hongmiao Xia, Renhai Zhang, Guoyi Chen, Xingfeng Jiang
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Patent number: 7978622Abstract: A method for implementing path computation in a domain includes: storing, in each of path computation elements of a domain, global path computation information for path computation in the domain; and performing path computation by the path computation element in accordance with the global path computation information if a path is to be established as requested. A device for implementing path computation in a domain includes: a storage unit for storing global path computation information used for path computation in a domain; and a computation unit for performing path computation in accordance with the global path computation information stored in the storage unit if a path is to be established as requested.Type: GrantFiled: May 19, 2006Date of Patent: July 12, 2011Assignee: Huawei Technologies Co., Ltd.Inventor: Renhai Zhang
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Publication number: 20110007749Abstract: A method and an apparatus for advertising border connection information of autonomous system are disclosed. Moreover, the method includes: establishing and maintaining, by a border node of the autonomous system, the border connection information of the autonomous system; flooding the border connection information within the autonomous system; and receiving, by nodes of the autonomous system, the border connection information. The method and the apparatus for advertising border connection information of autonomous system of embodiments of the present invention may adapt to dynamic change of network topology, and dynamically advertise the border connection information of the autonomous system within the system in time, so as to optimize networks and improve quality of service of the networks.Type: ApplicationFiled: September 30, 2010Publication date: January 13, 2011Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Hongmiao XIA, Renhai ZHANG, Guoyi CHEN, Xingfeng JIANG
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Patent number: 7808972Abstract: A method for processing distributed path computation requests includes: storing all path computation requests in an autonomous system, in each of Path Computation Elements (PCEs); and performing a path computation by a PCE in accordance with a path computation request obtained from the all path computation requests.Type: GrantFiled: November 21, 2007Date of Patent: October 5, 2010Assignee: Huawei Technologies Co., Ltd.Inventor: Renhai Zhang
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Publication number: 20090274159Abstract: A method and an apparatus for advertising border connection information of autonomous system are disclosed. Moreover, the method includes: establishing and maintaining, by a border node of the autonomous system, the border connection information of the autonomous system; flooding the border connection information within the autonomous system; and receiving, by nodes of the autonomous system, the border connection information. The method and the apparatus for advertising border connection information of autonomous system of embodiments of the present invention may adapt to dynamic change of network topology, and dynamically advertise the border connection information of the autonomous system within the system in time, so as to optimize networks and improve quality of service of the networks.Type: ApplicationFiled: May 8, 2009Publication date: November 5, 2009Applicant: Huawei Technologies Co., Ltd.Inventors: Hongmiao Xia, Renhai Zhang, Guoyi Chen, Xingfeng Jiang
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Publication number: 20080151896Abstract: A method for implementing path computation in a domain includes: storing, in each of path computation elements of a domain, global path computation information for path computation in the domain; and performing path computation by the path computation element in accordance with the global path computation information if a path is to be established as requested. A device for implementing path computation in a domain includes: a storage unit for storing global path computation information used for path computation in a domain; and a computation unit for performing path computation in accordance with the global path computation information stored in the storage unit if a path is to be established as requested.Type: ApplicationFiled: May 19, 2006Publication date: June 26, 2008Inventor: Renhai Zhang
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Publication number: 20080101392Abstract: A method for route updating includes: a. determining more than one route in accordance with a predetermined preset mechanism and sending the determined more than one route to a client and/or a non-client, by a reflector in a route advertisement, and saving more than one route reaching the same destination address by the client and/or the non-client; and b. sending to the client and/or the non-client a message carrying information on the next hop of the route to be withdrawn, by the reflector in a withdrawal of a route and withdrawing the corresponding route for route updating in accordance with the information on the next hop carried in the message, by the client/the non-client. A system for route updating and a router reflector is also provided.Type: ApplicationFiled: January 4, 2008Publication date: May 1, 2008Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Renhai ZHANG, Hui NI, Yuan RAO
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Publication number: 20080069010Abstract: A method for processing distributed path computation requests includes: storing all path computation requests in an autonomous system, in each of Path Computation Elements (PCEs); and performing a path computation by a PCE in accordance with a path computation request obtained from the all path computation requests.Type: ApplicationFiled: November 21, 2007Publication date: March 20, 2008Inventor: Renhai Zhang