Huawei Technologies Co., Limited

Other

Sun Yat-senuniversity

Hongfei Chen

Jun Gong

Jian Zhang

Linchun Wang

Nan Li

Rui Hu

Xiaofei Xu

Shuying Liu

Wenyang Lei

Xiaozhong Wang

Haizhou Xiang

Xin Lv

Suping Zhai

Wenyong Zhang

Baojiang Chen

Zhongqi Xia

Xing Tong

Zhaohui Li

Tuanhui Sun

Hao Su

Chong Zhan

Hunghsiang Jonathan Chao

Zhenfeng Lv

Hexuan Zhao

Hongxiang Zhao

The present invention belongs to the technical field of photonic integrated chips, and more specifically, relates to a reconfigurable photonic integrated chip based on a phase change material film and a processing method therefor. A phase change material film is processed with femtosecond laser and continuous laser to change its surface phase state distribution; and by customizing the number of pulses, power and the like of the laser for processing, and a pattern shape for processing, a specific surface phase state distribution is achieved, so as to achieve the function of a specific photonic integrated chip.

Reconfigurable photonic integrated chip based on phase change material film and processing method therefor

A network device management method and apparatus are provided. The method includes: generating statistical traffic data, where the statistical traffic data includes at least one of data traffic of a port of a network device, a queue status of the network device, traffic of a data packet that passes through the network device, or traffic of a target data flow that passes through the network device; and sending the statistical traffic data to a controller. The controller receives statistical traffic data sent by multiple network devices, and can adjust a path of a data flow dynamically according to a traffic status of each port of the multiple network devices or a traffic status of a transmitted data flow in the multiple network devices and by changing routing tables of the network devices, thereby improving link utilization, and further improving network performance.

Network device management method and apparatus

A data processing method and a related device are provided. The method includes receiving, by the iprocessing circuit in a first circuit set, a first packet header and data D, obtaining data D'based on a first field in the first packet header, and sending the first packet header and data Dto the (i+1)processing circuit in the first circuit set, where the data Dis obtained based on the data Dand the data D&#x2032;. The method also includes sending, by the iprocessing circuit in the first circuit set, the data Dto the (i+1)processing circuit in a second circuit set and sending, by the iprocessing circuit in the second circuit set, a second packet header to the (i+1)processing circuit in the second circuit set.

Data processing method executed by network apparatus, and related device

Disclosed are a data processing method, a processor, and a data processing device. The method comprises: an arbiter sends data Dto a first processing circuit; the first processing circuit processes the data Dto obtain data D, the first processing circuit being a processing circuit among m processing circuits; the first processing circuit sends the data Dto a second processing circuit; the second processing circuit to an mprocessing circuit separately process the received data; and the arbiter receives data Dsent by the mprocessing circuit. The processor comprises an arbiter and a first processing circuit to an (m+1)processing circuit. Each processing circuit in the first processing circuit to the (m+1)processing circuit can receive first data to be processed sent by the arbiter, and process the first data to be processed. The scheme is helpful to improve efficiency of data processing.

Data processing method, processor, and data processing device

Embodiments provide a method, including: receiving, by a forwarding element, a packet through an inbound port; searching for, by the forwarding element, a port table according to the inbound port and determining a first offset, a first length, and an identifier of a first table; determining, by the forwarding element, a first key according to the first offset and the first length, searching for the first table according to the first key, and determining a first instruction; and processing, by the forwarding element, the packet according to the first instruction. In addition, a forwarding element is provided. In the foregoing technical solutions, before processing a packet, the forwarding element does not need to interpret a data format of the packet, so that the forwarding element can flexibly support packets in different data formats.

Packet processing method and forwarding element

A method and a device for classifying a packet, in the field of communications technologies, are provided to reduce rule duplication in a classification process and improve classification efficiency. The method classifies a packet by receiving a packet; searching for a rule matching the packet in at least one created decision tree (created after an original rule set is divided based on a segmentation code); and classifying the packet according to a found rule. The method and the device may be applicable to a router.

Method and device for classifying a packet

A method for selecting a hash function, a method for storing and searching a routing table and devices thereof are provided. The method for selecting a hash function includes: hashing data to be hashed by using a current alternative hash function; decoding a hash result; accumulating decoded results until no carry occurs during the accumulation; and selecting a current alternative hash function with no carry generated as a formal hash function. The method for storing a routing table includes: dividing the routing table into a next-level node pointer portion and a prefix portion for being stored; and selecting a hash function by using the above method for selecting a hash function. The method for searching a routing table includes: directly searching an IP address to be searched according to a directly stored length of a next-level node pointer portion for storing the routing table; and reading a prefix node according to a searched result. Thus, hash collision can be avoided, and memory resources occupied by the routing table can be effectively reduced.

Method for selecting hash function, method for storing and searching routing table and devices thereof

A method for transmitting a media independent handover (MIH) message includes the following steps: The MIH message is divided into segments and the segments are encapsulated into transmission control protocol (TCP) segments; the TCP segments are then encapsulated into Internet protocol (IP) data packets; the IP data packets is transmitted to a receiving end. The method, system, and device for transmitting an MIH message described herein provide flow controls for the MIH message transmission, thereby enhancing the transmission efficiency of the MIH message.

Method, system and device for transmitting a media independent handover message

The disclosure provides a method, system and apparatus for backuping HA/MAP in mobile IPv6 network. In the disclosure, at least two HAs/MAPs form a redundant backup group. The at least two HAs/MAPs elect an active HA/MAP and a standby HA/MAP via the VRRP. When the active HA/MAP interacts the signaling message with a mobile node, the HA/MAP in backup status obtains the signaling message interacted by both of them in real time. When the active HA/MAP is invalid, the standby HA/MAP may take over the work in time so that the stability of the active node device of the network is ensured. During the exchange of the active HA/MAP and the standby HA/MAP, the solution ensures a smooth transition of the service.

Method, system and apparatus for backuping HA/MAP in mobile IPV6 network

A system for providing IPv6 services, including a node registration agent for use in applying for a home address for the device, registering the device to a home agent and informing the device of the home address. A method for providing IPv6 services, comprising: the device accessing an IPv6 network and acquiring a forwarding address; the device making a remote registration to the node registration agent; the node registration agent applying for a home address for the device, registering the device to the home agent, and informing the device of the home address; the communication counterpart of the device sending messages using the home address as the destination address; the home agent receiving the message and forwarding the message to the forwarding address of the device; and eventually providing the device with the IPv6 services. Application of the system and method reduces the cost, and makes possible the IPv6 services.

System and method for providing IPv6 services

The invention discloses a method for remotely monitoring method of computer network. It is an improvement of the RMON (Remote Network Monitoring) alarm group. The method mainly includes: Setting an alarm-extended table in the RMON alarm group; Defining a combination object in MIB (Management Information Base) that is an expression with two or more than two independent objects; A network management center sends a Set-Request packet with the expression to managed devices to initiate a RMON monitoring process; The expression is calculated and its value is compared with a threshold; When calculated value of the expression exceeds the threshold, processing steps preset by the network management center are taken. The invention supports SNMP (Simple Network Management Protocol), optimizes network performance, and saves network bandwidth and CPU resource of the network management center.

Growing community of inventors

Shenzhen, China

Hongfei Chen