Qinfeng
Qinfeng Gu, Nanjing CN
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20140293773 | METHOD AND APPARATUS FOR RECOVERING SERVICE - The present application provides a method and an apparatus for avoiding interruptions in an on-going service. A LAN bridge intercepts a trusted port connected to a first routing bridge; determines whether the first routing bridge is forwarding or has a permission to forward data flow from a C-VLAN according to a result of the interception; and if the first routing bridge is not forwarding or no longer has the permission to forward the data flow from the C-VLAN, broadcasts the data flow from the C-VLAN to a second routing bridge so that the second routing bridge forwards the data flow from the C-VLAN. With the method provided in the embodiments of the present application, a forwarding path can be rapidly switched when a designated routing bridge is faulty and cannot carry out a traffic forwarding function or an appointed forwarder of a customer VLAN is changed. | 10-02-2014 |
20150188815 | Packet Forwarding Method and System - A packet forwarding method and system. A first network device encapsulates a to-be-forwarded packet as a first packet, and sends the first packet to a second network device, where the first packet carries a destination Media Access Control (MAC) address encapsulation instruction, the destination MAC address encapsulation instruction is used to instruct the second network device to encapsulate a destination MAC address for the first packet, the to-be-forwarded packet carries a destination internet protocol (IP) address, and the destination MAC address is a MAC address of a destination host corresponding to the destination IP address; the second network device generates a second packet containing the destination MAC address according to the destination MAC address encapsulation instruction carried by the received first packet, and forwards the second packet to the destination host corresponding to the destination MAC address. | 07-02-2015 |
Qinfeng Li, Foshan City CN
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20080308137 | WALKER - A walker comprises: a cross brace having an end sleeve on each end, N-shaped leg extensions, a lock body having a housing and a block having an axis hole, wherein the leg extension is covered by the end sleeve, the lock body is provided on top of the end sleeve, the leg extension and the lock body are provided with a pin hole and a connecting pin hole respectively at corresponding positions and fixed by a lock pin, the housing of the lock body is provided with a hole for sub axis, the block is connected inside the housing by a sub axis passing through the hole for sub axis and the axis hole, the end sleeve is provided with an orientation hole, a flange for fitting with the orientation hole is provided at the bottom of the block in the housing, a stretch part with a bearing rod is provided inside the leg extension, and the bearing rod leans against the upper portion of the block above the axis hole by passing through a through hole on the leg extension. The invention of this walker is of simple structure and assembly, easy processing and folding, light weight, convenient to transportation and storage. It meets of the demands of different users. | 12-18-2008 |
Qinfeng Zhang, Shanghai CN
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20100039940 | SENSOR NETWORK - The present invention provides a method for finding a backup node for a node in a sensor network. Firstly, determining a node which is in a state of waiting for being an agent node among a plurality of nodes adjacent to the node to be backed up for using the agent node to find the backup node. The states of waiting for being backed up is that the quantity of electricity of the node to be backed up drops below a preset value. According to the present invention, the node to be backed up does not need to communicate with a large number of nodes. It only needs to determine an agent node among the adjacent notes to do the substantial search for a backup node. | 02-18-2010 |
20110143767 | POSITION A USER IN WIRELESS NETWORK - The present invention provides a locating apparatus ( | 06-16-2011 |
Qinfeng Zhao, Beijing CN
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20150299585 | Method for Selective Hydrogenation of Unsaturated Compound - The present invention relates to a method for the selective hydrogenation of an unsaturated compound, particularly a method in an unsaturated compound or a mixture containing unsaturated compounds for increase of the light sulphides weight, hydrogenation of a polyunsaturated compound and isomerization of a monounsaturated compound. The method uses a supported catalyst. The supported catalyst contains at least one Group VIB non-noble metal oxide and at least one Group VIII non-noble metal oxide deposited on a carrier; and the catalyst has an optimized acid distribution on the surface of the catalyst, and more preferably has an optimized Group VIII/VIB metal ratio and a Group VIII non-noble metal density per unit of catalyst surface area. | 10-22-2015 |