102 results about "Software switch" patented technology

Some embodiments provide a set of one or more network controllers that communicates with a wide range of devices, ranging from switches to appliances such as firewalls, load balancers, etc. The set of network controllers communicates with such devices to connect them to its managed virtual networks. The set of network controllers can define each virtual network through software switches and/or software appliances. To extend the control beyond software network elements, some embodiments implement a database server on each dedicated hardware. The set of network controllers accesses the database server to send management data. The hardware then translates the management data to connect to a managed virtual network.

Some embodiments provide a set of one or more network controllers that communicates with a wide range of devices, ranging from switches to appliances such as firewalls, load balancers, etc. The set of network controllers communicates with such devices to connect them to its managed virtual networks. The set of network controllers can define each virtual network through software switches and/or software appliances. To extend the control beyond software network elements, some embodiments implement a database server on each dedicated hardware. The set of network controllers accesses the database server to send management data. The hardware then translates the management data to connect to a managed virtual network.

For a host that executes one or more guest virtual machines (GVMs), some embodiments provide a novel virtualization architecture for utilizing a firewall service virtual machine (SVM) on the host to check the packets sent by and/or received for the GVMs. In some embodiments, the GVMs connect to a software forwarding element (e.g., a software switch) that executes on the host to connect to each other and to other devices operating outside of the host. Instead of connecting the firewall SVM to the host's software forwarding element that connects its GVMs, the virtualization architecture of some embodiments provides an SVM interface (SVMI) through which the firewall SVM can be accessed to check the packets sent by and/or received for the GVMs.

For a host that executes one or more guest virtual machines (GVMs), some embodiments provide a novel virtualization architecture for utilizing a firewall service virtual machine (SVM) on the host to check the packets sent by and/or received for the GVMs. In some embodiments, the GVMs connect to a software forwarding element (e.g., a software switch) that executes on the host to connect to each other and to other devices operating outside of the host. Instead of connecting the firewall SVM to the host's software forwarding element that connects its GVMs, the virtualization architecture of some embodiments provides an SVM interface (SVMI) through which the firewall SVM can be accessed to check the packets sent by and/or received for the GVMs.

A terminal is configured to switch from an unlocked mode in which a first set of user interactions can be made through a user interface to effect certain functions, to a partial lock mode in which a different set of user interactions are made available to the user in relation to the same, or substantially similar, displayed content. Switching does not cause the currently-displayed content to entirely disappear, as in a conventional transition to a lock mode, but rather the same or substantially the same content continues to be displayed. Switching between the modes can take place in response to manual selection, for example using a hardware or software switch, or can take place automatically in response to one or more sensors of the apparatus detecting a predetermined operating condition, e.g. the user being in motion.

The invention discloses a laser transceiving device, a manufacturing method thereof and a method for improving temperature operation range thereof. A low-cost laser transmitter module TOSA (transmitter optical subassembly) is utilized to broaden the temperature operation range of laser transceiving integration modules of a small form-factor pluggable transceiver (SFP) or an SFP+ and the like, and a heater and a laser diode are packaged and integrated in the TOSA of a TO-CAN. Operation temperature of the SFP+ laser transceiving module is monitored by integrating a temperature sensor on a circuit board of the SFP+, or operation temperature of a TOSA laser is calculated by detecting bias current and output power of the laser, the heater in the TOSA positioned on the laser transceiving module is controlled through a heat control circuit and software, the software starts the control circuit and supplies power to the heater to heat the laser diode if the detected temperature is lower than a set threshold, and the software switches off the control circuit to stop heating the laser diode if the detected temperature is higher than the set threshold.

The disclosure is related to a method and a system for extracting flow data inside a tunnel over a virtual network. The method is achieved by modifying flow tables operated in a switch. The switch extracts data of the in-tunnel flow when the data is transmitted among computers that run software switches over the virtual network. The switch conducts monitoring, metering and management of the in-tunnel flows. A virtual machine running in a computer generates a packet that is encapsulated through a tunnel protocol at a logical port. The packet is then transmitted to the switch. The switch uses the flow tables to perform packet lookups for extracting the in-tunnel flow after the packet is de-capsulated. The packet is then re-encapsulated and forwarded to a logical port of the switch that connects to a destination computer. The destination computer can acquire the original packet after de-capsulating the packet.

The invention belongs to the field of security and environment protection, relating to a movable communication integrative device of an emergency rescue capsule for coal mine. The device comprises a control box, a liquid crystal display station, an internal transmission interface, an external transmission interface, a main electric power source, a stand-by power and an internal capsule monitoring apparatus. The control box is internally provided with a software switch and a hardware switch, a power-on self-test function, a screen-opening Chinese language display function, an environmental parameter intensively display function, an alarm sequencing function, a menu interface with strong operability and controllability, a self-clock function, a centralized RS485 communication function and a self-power saving mode function. The invention can monitor data such as gaseous environment, temperature and humidity environment, luminous environment, and the like, for human living in the rescue capsule in real time, and alarm, so that persons in the rescue capsule can find out the living condition in the rescue capsule and can adjust the operation by the integrative communication device in real time; and can realize the integrative transmission of the video communication and the voice communication for the living condition of the persons in the rescue capsule, so that rescue workers can communicate with the persons in the rescue capsule in real time to help miners in the rescue capsule to escape.

The invention provides a startup control method for software-operated startup and shutdown in multitask systems. The method is implemented by any one of three safeguard mechanisms. The first safeguard mechanism includes: a power management and monitoring service thread is established in a kernel of the multitask system, and shutdown is controlled through the power management and monitoring service thread which detects a long-press event of a power button. The second safeguard mechanism includes: a hardware timer interrupt service is established in the multitask system, and a hardware timer is started to regularly detect the long-press event of the power button so as to control shutdown. The third safeguard mechanism includes: a hardware watchdog timer is established in the multitask system, and the watchdog times out and restores so as to control shutdown. The design of three safeguard mechanisms allows a handheld terminal system to be able to shut down or reset and restart with no need for dismantling the system to remove a battery when the whole software-operated startup and shutdown mechanism collapses abnormally; accordingly, user experience is improved greatly, and products can be more competitive.

Anomaly-driven software for capturing and automating responses to computer anomalies is disclosed. Computer anomalies are processed by identifying the occurrence of an anomaly and correcting the computer anomaly by initiating a stored corrective action based on a user's input for resolving the anomaly.

In the invention, when terminal makes software switch, the terminal decides if the destination cell base station and the original cell base station use identical HARQ mode, and according to the physical circumstance of original cell base station and destination cell base station, uses different mode to realize the software switch process. The invention can be used in the both situations; one is the terminal can learn that the HARQ modes are different in the original cell base station and in the destination cell base station, and is capable of adjusting said HARQ modes to be consistent; another one is the terminal can't learn the HARQ modes of original cell base station and destination cell base station.

The invention discloses a cold reclaimer spraying control method based on fuzzy PID (Proportional-Integral-Derivative) composite control and relates to the technical field of cold reclaimer spraying control. The method comprises the following steps: installing a fuzzy PID composite controller on a road cold reclaimer, wherein the fuzzy PID composite controller is composed of a switchover judging module, a fuzzy controller module and a PID controller module; controlling the spraying water flow of a road cold reclaimer spraying system through the composite control of the fuzzy controller and the PID controller; adopting the fuzzy control under a large deviation; adopting the PID control under a small deviation; and switching over the two controllers through a software switch so as to realize good control on the spraying control system. The method has the advantages that the spraying control system can be operated on a selected objective flow well; rapid precise control of the system on the sprayed water quantity is realized; and the quality and the efficiency in road cold reclaiming construction are improved greatly.

The invention relates to a data packet forwarding method based on software table look-up. The method is based on Intel DPDK, and adopts hardware to extract a data packet header, rapid data transmission software to transmit data in batch efficiently, and software to look up table flexibly so as to realize a data packet forwarding function of a switch. A table look-up algorithm realizes the effects of storing enough items and improving table look-up speed by combining a cuckoo hash table and an open addressing method. Network equipment is allowed to have the following characteristics of multiport wire-speed forwarding, flexible high-capacity table look-up and low cost. The method combines the high-speed packet forming capability of the hardware, the mass data packet processing and forwarding capability of the rapid data transmission software and the high-speed flexible look-up capability of the software; compared with the conventional hardware switch, the method has better extendibility and programmability; and compared with a conventional software switch, the method can provide larger throughput rate and smaller time delay.

A network function virtualization (NFV) apparatus according to the present disclosure may include: a virtual machine which is configured to perform a first network function, generate a flow rule according to network configuration information received from a user or a result of performing the first network function, and transmit the flow rule to a software switch; and the software switch which is configured to perform a second network function, and process a packet according to the flow rule. According to the present disclosure, separate a virtual network function may be separated into a data (packet) processing function and a control function, whereby a fast processing speed provided by a software switch and virtual machine's processing capability with high complexity may be maximally utilized.

The embodiment of the invention discloses a data communication method and a data communication device. When the data communication method is applied to a first software switch connected to a data transmitting terminal in a data communication system, the method comprises the steps of receiving a data packet sent by a first virtual machine, acquiring a first flow table which is sent by an OpenFlow controller and matched with the data packet, processing the data packet based on processing actions included in the first flow table, forwarding the processed data packet to a second software switch so as to enable the second software switch to process the data packet based on a second flow table which is sent by the OpenFlow controller and matched with the data packet, and forwarding the processed data packet to a second virtual machine. The data communication method solves a problem that the communication resource consumption is great when virtual machines in the same segment inside tenants carry out cross-server communication in an SDN (Software Defined Network), and communication resources can be saved compared with an existing scheme.

The present invention discloses an application software online payment processing method and system, said method comprising: a software-switching prevention system receives a software-switching prevention request message from a billing authentication center, wherein the information carried in the software-switching prevention request message includes: mobile terminal identifier information, the application name of application software run on the mobile terminal, and software account number information corresponding to said application name; the software-switching prevention system, when it is determined that it is not possible to complete online payment of the mobile terminal SIM card balance, verifies, in accordance with the identifier information, the application name and the software account number information and whether software-switching behavior exists in regard to the mobile terminal, and returns, to the billing authentication center, the verification results regarding whether software-switching behavior exists in regard to the mobile terminal. The technical solution of the present invention effectively reduces a carrier's legacy bad debt.

The invention provides a method for inputting number-plate number rapidly by using a tax-control cash register keyboard. The method can input number-plate number rapidly and conveniently by using software switch control method through an equipment keyboard. The method only need to add an input method state on software without changing hardware design of product, the keyboard input on the state can automatic switch input method according with number-plate number encoding rule. The method can be used in tax-control cash register, business POS machine, and also can be widely used in keyboard kind electronic product such as mobile phone, little smart, PDA and hand computer.

The embodiments of the present invention disclose a message forwarding method and apparatus applied to a software defined network (SDN), wherein the SDN comprises at least one controller and a plurality of servers. The method comprises the following steps that: link state information in the SDN is obtained; the load sharing table of the first server in the plurality of servers is generated according to the link state information and the address of the destination server of the first server in the plurality of servers; and the load sharing table is sent to a software switch on the first server so that the software switch on the first server can perform message forwarding according to the load balancing table. According to the message forwarding method and apparatus applied to the software defined network (SDN) provided by the embodiments of the present invention, the load sharing table is dynamically generated, and therefore, the forwarding efficiency of load balancing data can be improved, and the maintenance complexity of load balancing can be reduced.