3682 results about "Traffic management" patented technology

A method for determining metrics of a content delivery and global traffic management network provides service metric probes that determine the service availability and metric measurements of types of services provided by a content delivery machine. Latency probes are also provided for determining the latency of various servers within a network. Service metric probes consult a configuration file containing each DNS name in its area and the set of services. Each server in the network has a metric test associated with each service supported by the server which the service metric probes periodically performs metric tests on and records the metric test results which are periodically sent to all of the DNS servers in the network. DNS servers use the test result updates to determine the best server to return for a given DNS name. The latency probe calculates the latency from its location to a client's location using the round trip time for sending a packet to the client to obtain the latency value for that client. The latency probe updates the DNS servers with the clients' latency data. The DNS server uses the latency test data updates to determine the closest server to a client.

A computer network having multiple, dissimilar network devices includes a system for implementing high-level, network policies. The high-level policies, which are generally device-independent, are translated by one or more policy servers into a set of rules that can be put into effect by specific network devices. Preferably, a network administrator selects an overall traffic template for a given domain and may assign various applications and / or users to the corresponding traffic types of the template. Location-specific policies may also be established by the network administrator. The policy server translates the high-level policies inherent in the selected traffic template and location-specific policies into a set of rules, which may include one or more access control lists, and may combine several related rules into a single transaction. Intermediate network devices, which may have one or more roles assigned to their interfaces, are configured to request traffic management information from the policy server which replies with a particular set of transactions and rules. The rules, which may correspond to the particular roles assigned to the interfaces, are then utilized by the intermediate devices to configure their particular services and traffic management mechanisms. Other rules are utilized by the intermediate devices to classify packets with a particular priority and / or service value and to treat classified packets in a particular manner so as to realize the selected high-level policies within the domain.

A lane-level vehicle routing and navigation apparatus includes a simulation module that performs microsimulation of individual vehicles in a traffic stream, and a lane-level optimizer that evaluates conditions along the candidate paths from an origin to a destination as determined by the simulation module, and determines recommended lane-level maneuvers along the candidate paths. A link-level optimizer may determines the candidate paths based on link travel times determined by the simulation module. The simulation may be based on real-time traffic condition data. Recommended candidate paths may be provided to delivery or service or emergency response vehicles, or used for evacuation planning, or to route vehicles such as garbage or postal trucks, or snowplows. Corresponding methods also may be used for traffic planning and management, including determining, based on microsimulation, at least one of (a) altered road geometry, (b) altered traffic signal settings, such as traffic signal timing, or (c) road pricing.

An improved data networking technique and apparatus using a novel physically distributed but logically shared and data-sliced synchronized shared memory switching datapath architecture integrated with a novel distributed data control path architecture to provide ideal output-buffered switching of data in networking systems, such as routers and switches, to support the increasing port densities and line rates with maximized network utilization and with per flow bit-rate latency and jitter guarantees, all while maintaining optimal throughput and quality of services under all data traffic scenarios, and with features of scalability in terms of number of data queues, ports and line rates, particularly for requirements ranging from network edge routers to the core of the network, thereby to eliminate both the need for the complication of centralized control for gathering system-wide information and for processing the same for egress traffic management functions and the need for a centralized scheduler, and eliminating also the need for buffering other than in the actual shared memory itself,—all with complete non-blocking data switching between ingress and egress ports, under all circumstances and scenarios.

An adaptive compression mechanism that dynamically selects compression algorithms applied to network application traffic to improve performance. One implementation includes an arbitration scheme that reduces the impact on computing resources required to analyze different compression algorithms for different network applications. The adaptive compression functionality of the present invention can be integrated into network application traffic management or acceleration systems.

Methods and apparatus to support dynamic allocation of traffic management resources in a network element. Shared pools of traffic management resources comprising an aggregation of local line card resources distributed across the line cards or a network element maintained by apparatus software. Incoming packets are classified into subscriber flows using a hierarchical classification scheme. In view of subscriber services and flow application types, traffic management resources are dynamically allocated from the shared pools, and traffic management policies associated with the subscriber services and application types are applied to the subscriber flows via the allocated resources. In response to detecting a subscriber flow has terminated, the allocated resources are release and made available to be dynamically re-allocated to subsequent subscriber flows.

A content delivery and global traffic management network system provides a plurality of caching servers connected to a network. The caching servers host customer content that can be cached and stored, and respond to requests for Web content from clients. If the requested content does not exist in memory or on disk, it generates a request to an origin site to obtain the content. A DNS Server load balances network requests among customer Web servers and directs client requests for hosted customer content to the appropriate caching server. The customer pays a service that provides the content delivery and global traffic management network system a fee for usage of the content delivery and global traffic management network system.

A traffic management system sniffs data arriving at any point in a system. The sniffer operates to extract certain data from each address. This data could be, for example, the IP address data and the physical address data. The extracted data is then used to access different data bases to determine if matches occur. Time stamps, sequencing and other parameters of each piece of data entering a system are used to control data access.

A method for auto-scaling the infrastructure capacity of an application in response to client demands includes providing an application configured to run on an application infrastructure comprising a plurality of server nodes and to be accessed by clients via a first network. Next, providing traffic management means directing traffic from the clients to the server nodes of the application infrastructure. Providing monitoring means gathering performance metrics of the application and metrics of the application infrastructure. Providing controlling means configured to change the application infrastructure. Next, monitoring the performance metrics of the application and the metrics of the application infrastructure via the monitoring means thereby obtaining metrics information and then changing the application infrastructure based on the metrics information via the controlling means. Finally directing network traffic targeted to access the application to server nodes of the changed application infrastructure via the traffic management means.

A system for optimizing the performance of a website that runs on one or more HTTP servers and is configured to receive HTTP requests from one or more clients via user agents and provide HTTP responses to the one or more clients includes an intermediary component configured to connect to the clients and the servers via network connections. The intermediary component includes a traffic management system (TMS) that includes means for managing HTTP requests originating from the clients and targeting the servers and HTTP responses originating from the servers and targeting the clients and means for redirecting the HTTP requests to the intermediary component. The intermediary component further includes a traffic processing system that includes means for receiving the redirected HTTP requests and the HTTP responses and means for applying optimization techniques to the redirected HTTP requests and the HTTP responses.

The present invention provides a traffic management system for managing unmanned aerial systems (UASs) operating at low-altitude. The system includes surveillance for locating and tracking UASs in uncontrolled airspace, for example, in airspace below 10,000 feet MSL. The system also includes flight rules for safe operation of UASs in uncontrolled airspace. The system further includes computers for processing said surveillance and for applying the flight rules to UASs. The traffic management system may be portable, persistent, or a hybrid thereof.

A traffic management system for use in a communications network, including a detection module for determining the source addresses of received network packets, and for comparing the source addresses with stored source address data for network packets received in a previous time period. The system monitors increases in the number of new source IP addresses of received packets to detect a network traffic anomaly such as a distributed denial of service (DDoS) attack or a flash crowd. If a traffic anomaly is detected, a filtering module performs history-based filtering to block a received packet unless one or more legitimate packets with the same source address have been previously received in a predetermined time period.

The present invention provides a system for coordinating multiple vehicles in a passageway environment (e.g., in underground mines). The system includes methods and apparatus for determining the global position and orientation of a vehicle in said passageway environment, and methods for planning routes and monitoring the travels of multiple vehicles in said passageway environment. A global position and orientation estimation system employs one or more odometric sensors and one or more range sensing devices. It works in three basic steps. In the first step, it records and processes sensor data that is descriptive of the passageway environment by moving the system through said passageway environment. In the second step, it generates a globally consistent map of said passageway environment. Finally, real-time localization is provided by employing odometric sensors and range sensing devices to determine the system's global position and orientation with respect to said globally consistent map, both initially and as it travels through the passageway environment. A route planning method accepts higher-level goals for a set of multiple vehicles in said passageway environment and generates a route plan for each vehicle that minimizes the travel time for the group of vehicles, while at the same time avoiding collisions between vehicles. Route plans are sent to the vehicles for implementation and a monitoring method tracks the global positions and orientations of the vehicles and ensures that both safety and efficiency are maintained.

Mobile monitoring systems and methods are disclosed. In accordance with one aspect of the invention, the system includes a plurality of vehicles and a base communication station that are in communication with each other. Each of the vehicles includes a camera that generates image data, a location device that generates geographic coordinates of the vehicle, a computing device that receives the image data from the camera and the geographic coordinates of the vehicle and forms a processed image signal that includes the image data, the geographic coordinates and a time stamp, and a communication device that receives the processed image signal from the computing device and wireless transmits the processed image signal to the base communication station. The base communication station receives the processed image signal. The base communication station can include an image processor to further process the processed image signal from each of the plurality of vehicles to form an output signal and a transmitter that transmits the output signal. The output signal can be used to control traffic control devices, vehicles and to provide other useful information.

The present invention provides interactive and automated methods and systems that facilitate the improved stewardship of broadcast advertising by all industry participants. The system employs data from multiple sources, such as agency media management systems; broadcaster inventory and sales management systems; agency and broadcaster traffic management systems; and the ConfirMedia® broadcast monitoring system developed by Verance Corporation; as well as from third-party industry data sources such as electronic program guides, broadcaster and market population data, and audience rating services, to allow the fulfillment of broadcast advertising agreements to be verified and accounted for, and for discrepancies between various data sources to be identified and resolved.

A method for allocating bandwidth in a communications environment is provided that includes receiving one or more data streams associated with one or more subscribers at a voice gateway. One or more algorithms included in the voice gateway are executed that are associated with traffic management of the data streams in order to generate a designated bandwidth value associated with one or more of the data streams. The designated bandwidth value is assigned to one or more of the data streams based on one or more of the algorithms that use an aggregation of one or more activity characteristics associated with a selected one or more of the subscribers.

The invention discloses a real-time road condition acquiring, analyzing and back-feeding and intelligent transportation integrated service system, which is divided into two parts of an intelligent terminal host and a server-side server farm. The intelligent terminal host consists of electronic map application, GPS receiving, p2p data transmission, navigation, voice control, general message checking and a communication module; the server-side server farm consists of vehicle information and public TMC receiving, data integration and filtration, road condition analysis, road condition forecast, electronic map management and maintenance, dynamic information prompt, advertising publishing, data feedback and publishing, a server-side data base, parking space information collection and treatment, road section codes, road condition codes, road planning analog and a communication module. The invention has wide road condition information acquisition source, strong data handling capacity, can carry out highly-accurate real-time road condition analysis, road condition information forecast, path planning navigation, information inquiry and the like, and can be widely applied in the fields of road planning, intelligent traffic management, vehicle navigation, car scheduling and the like.

Traffic information, including traffic flow information and traffic incident information, obtained through a traffic management system for providing and facilitating the exchange of traffic information between a remote location and a vehicle may be presented to a user on a user display in the vehicle. The traffic information may be presented to the user in several circumstances, either as cued by the user, or automatically presented by the traffic management system. The user display may also automatically display traffic flow and traffic incident information for the direction that the user is traveling or along a route calculated by the navigation device. Further, a window displaying information about an upcoming traffic incident such as distance to the incident and incident details may automatically appear in the user display. Alternately, the user may select a roadway, freeway, or area for which traffic information is desired.

A drone traffic management system comprising a computer comprising memory means for storing origin coordinates indicating an origin location of a drone, destination coordinates indicating a destination of the drone, and traffic management factors located between the origin location of the drone and the destination of the drone; and processing means for controlling the flight of a drone. This is accomplished by calculating a flight path for the drone to fly automatically from the origin location to the destination location without manual intervention, sending the flight path to the drone, receiving location data of the drone as it travels from the origin location to the destination, re-calculating the flight path of the drone as a function of the traffic management factors and the location data of the drone, and sending the re-calculated flight path to the drone.

A method and apparatus is provided of handling modified packets containing additional information regarding source and data type for efficient processing within a mixed network. Incoming and outgoing packets are sent via a dynamic protocol which adapts to circumstances, including the type of network being used, the type of packet being transmitted and the network guidelines.

Embodiments include determining attributes of a property using an incubation pool. An incubation period is identified based on estimated attributes for the property, and based on rules that define a minimum and a maximum incubation time. The property is added to the incubation pool, and load and patterns for the property are analyzed. A load size and / or a traffic type for the property is identified based on the incubation. Embodiments also include offloading traffic within a CDN. A load balancer agent determines that traffic at an edge data center should be offloaded to the other edge data centers. The load balancer agent sends a request, including a determined priority level. The load balancer agent receives one or more replies indicating that resources are available for use. The load balancer agent sorts the replies and offloads traffic to at least one edge data center.

Traffic information, including flow information and incident information, obtained through a traffic management system for providing and facilitating the exchange of traffic information between a remote location and a vehicle may be used in route calculation by a navigation device. The navigation device may recalculate a route based on anticipated user error. Alternatively, the navigation device may recalculate a route using received traffic information triggered by the receipt of a traffic information update, or triggered by the passage of an amount of time. The broadcast rate of traffic information updates may vary temporally (providing more frequent updates during peak commute times) or geographically (providing more frequent updates to metropolitan areas with increased traffic information needs). If route calculation is triggered by an elapsed amount of time, the amount of time may vary to be shorter during peak commute times. Additional route calculation techniques allow the incorporation of historical traffic information or the use of the most recent traffic information if incomplete traffic information is available. Still further route calculation techniques may calculate a best route by avoiding zigzagging or evaluating an assigned cost of a potential route.

One embodiment of the present invention provides a switch system. The switch includes one or more ports on the switch configured to transmit packets encapsulated based on a first protocol. The switch further includes a traffic management mechanism and a control mechanism. During operation, the control mechanism forms a logical switch based on a second protocol, receives an automatically assigned identifier for the logical switch without requiring manual configuration of the identifier, and joins a virtual cluster switch.

A system, method, electronic device and server are provided for metering electronic messages and for managing message traffic within an organization. An electronic message resistance value is stored for recipients within an organization. When a message is composed and addressed at a sending terminal, the electronic message resistance value may be retrieved and displayed at the sending terminal. The message server receiving the composed message for transmission to the recipient sends the message to the recipient in accordance with a priority determined based on the recipient's electronic message resistance; for example, the message may be sent with a low priority attribute, or the transmission of the message to the recipient may be delayed for a set period of time.

A method for determining metrics of a content delivery and global traffic management network provides service metric probes that determine the service availability and metric measurements of types of services provided by a content delivery machine. Latency probes are also provided for determining the latency of various servers within a network. Service metric probes consult a configuration file containing each DNS name in its area and the set of services. Each server in the network has a metric test associated with each service supported by the server which the service metric probes periodically performs metric tests on and records the metric test results which are periodically sent to all of the DNS servers in the network. DNS servers use the test result updates to determine the best server to return for a given DNS name. The latency probe calculates the latency from its location to a client's location using the round trip time for sending a packet to the client to obtain the latency value for that client. The latency probe updates the DNS servers with the clients' latency data. The DNS server uses the latency test data updates to determine the closest server to a client.

Wireless networks and devices are ubiquitous today. For service providers to offer customers QoS and Service Level Agreements (SLAs) means in part providing resilient connectivity of wireless devices with good signal strength, good Signal to Noise and Interference Ratio (SNIR), and adequate useable bandwidth. Doing so requires that devices transmitting and receiving packets use over-the-air bandwidth efficiently and manage over-the-air congestion. According to embodiments of the invention QoS measurements and controls are incorporated only in the network (i.e. APs or controllers) and therefore QoS and SLAs can be achieved with all deployed client stations versus standards based approaches that require additional capabilities in network nodes, client stations and in most cases modifications to the applications. SLAs can be provided exploiting embodiments of the invention for traffic prioritization, capacity improvements through load distribution, and adjacent channel interference mitigation discretely or in combination with standards based mechanisms.

A method and apparatus for providing traffic management for distributed denial of service (DDOS) traffic. Within a communications network, a DDOS detection system monitors network traffic to identify traffic that is designed to attack a particular server within the network and their entry points into the network. A traffic routing control unit is requested to deny service to the DDOS traffic. By selectively manipulating the routing information propagated to network edge routers, the traffic that is denied service is limited to mostly DDOS traffic and is routed to a cleaning center or a null address in the most effective fashion.