88 results about "Traffic profile" patented technology

An intrusion detection arrangement (101) for communication networks comprising a network activity observer (102) configured to monitor network traffic by the related traffic elements, such as data packets, thereof and to establish traffic profiles relative to the monitored traffic elements, such as one profile per each monitored traffic element, a misuse detector (104) configured to determine a first indication of a probability of the profiled traffic representing malicious activity through co-operation with a model repository (106) comprising at least one model characterizing a known intrusion attack, an anomaly detector (108) configured to determine, at least logically in parallel with the misuse detector, a second indication of a probability of the profiled traffic representing anomalous activity through cooperation with a model repository (110) comprising at least one model characterizing legitimate network activity, and a classifier (112) configured to operate on said first and second indications to generate a classification decision on the nature of the profiled traffic, wherein the applied classification space includes at least one class for legitimate traffic and at least one other class for other traffic such as malicious and / or anomalous traffic. A corresponding method is presented.

Methods and apparatuses for estimating periodic worst-case delay for a class of traffic. An aggregate (i.e., a class or label on which traffic is classified and queued) has an associated bandwidth (“negotiated rate”), which typically is a maximum average bandwidth that has been agreed upon by the traffic generator (“customer”) and service provider. Delay for an aggregate is obtained by summing all the delays of class queues of each router in the path. Traffic data for the aggregate is collected. A burst-rate profile is calculated for the traffic data, with the rate parameter set to the value of the negotiated rate. A periodic worst-case delay estimate associated with the burst-rate profile is calculated, using the output link capacity allotted to the aggregate (“allocated bandwidth”) as input.

Methods and apparatus for optimum matching of a traffic profile with an individual traffic flow using flow bifurcation and analysis. Bifurcation and duplication of packets that make up a flow received at an ingress element are forwarded to each of egress traffic and computation processor resources, such that egress traffic operations and traffic analysis operations may be performed concurrently without introducing jitter or delay in either bifurcated processing path. The traffic analysis includes maintaining flow statistics, flow stateful information and classifying the flow as a particular application traffic type. The optimum traffic profile for this application traffic type is then selected and applied to the individual flow. The traffic analysis data is forwarded to ingress and egress processing elements in real time, and ingress and egress traffic processing operations are dynamically adjusted in view of the traffic analysis data.

A method of determining traffic information for a mobile vehicle includes receiving a plurality of service requests at a call center from a telematics unit via a wireless connection. The service request includes time, date, and vehicle location data. A database of the received service requests is compiled. A plurality of eligible service requests is determined based on the time and date of the received service requests in the database. A traffic profile is determined based on a comparison of digital map data to vehicle location data of the eligible service requests.

A method of allocating radio resources for uplink transmissions in a wireless telecommunications system, the method including: a first terminal device communicating a request for an allocation of radio resources to a base station; the base station determining there is an association between the first terminal device and a second terminal device based on their having similar predicted traffic profiles for uplink data; and the base station establishing a radio resource allocation for the second terminal device based on the resources requested by the first terminal device, and consequently transmitting radio resource allocation messages to allocate radio resources to the first and the second terminal devices for respective uplink transmissions based on the request for an allocation of radio resources received from the first terminal device.

There is disclosed a method for testing a network device comprising defining a traffic profile wherein the traffic profile defines a type of network traffic comprising a sequence of packets and wherein the traffic profile associates the network traffic with a communication axis. The method also comprises defining a traffic template wherein the traffic template comprises one or more traffic profiles, a relative weight to identify a weight of the profile within an overall traffic configuration, and a load rate that defines the maximum amount of packets that can be transmitted at a certain time. The method further comprises generating network traffic based on the traffic template, and transmitting the network traffic to a device under test wherein the relative weight of the traffic profile may be changed dynamically in real-time.

Systems and methods described herein are directed to streaming bridge design implementations that help interconnect and transfer transaction packets between multiple source and destination host interfaces through a Network on Chip (NoC) interconnect, which includes a plurality of NoC router layers and virtual channels (VCs) connecting the router layers. Implementations are configured to support a variety of different traffic profiles, each having a different set of traffic flows. Streaming bridge design implementation can divide streaming bridge into a streaming TX bridge and a streaming RX bridge, wherein TX bridge is operatively coupled with host TX interfaces and RX bridge is operatively coupled with host RX interfaces, and where TX bridge forwards transaction packets from host TX interfaces to different router layers / VCs of NoC, and RX bridge, on the other hand, receives packets from NoC router layers / VCs and transmits the packets to host RX interfaces based on Quality of Service.

Managing network traffic to improve availability of network services by classifying network traffic flows using flow-level statistical information and machine learning estimation, based on a measurement of at least one of relevance and goodness of network features. Also, determining a network traffic profile representing applications associated with the classified network traffic flows, and managing network traffic using the network traffic profile. The flow-level statistical information includes packet-trace information and is available from at least one of Cisco NetFlow, NetStream or cflowd records. The classification of network flows includes tagging packet-trace flow record data based on defined packet content information. The classifying of network flows can result in the identification of a plurality of clusters based on the measurement of the relevance of the network features. Also, the classification of network traffic can use a correlation-based measure to determine the goodness of the network features.

The present invention provides a method and apparatus for determining traffic conditions using wireless devices. A number of signals from the vehicles traveling in selected routes are received by several wireless communication networks via the wireless devices. The total number of signals received are used to compare if there are sufficient number of vehicles traveling on the selected routes. If so, then the location information of the moving vehicles at various times is determined by the wireless communication network and forwarded to a central computer. The central computer coordinates with the wireless communications network for information needed to compute traffic data. The central computer computes the velocity of the moving vehicles and a traffic profile is created based on the velocity and location information of the moving vehicles. Furthermore, the traffic profile is sent to the moving vehicles.

The present application is directed to designing an efficient Network on Chip (NoC) interconnect architecture that is adaptable to varied interface protocols of different SoC components / hosts and is compliant to handle different types and models of traffic profiles. Aspects of the present application include a method, which may involve utilizing multiple traffic profiles described in a specification to generate a NoC that satisfies all the traffic profiles. Such a NoC interconnect architecture can be formed from multiple traffic profiles by generating a single consolidated traffic profile from individual or subset based dependency graphs of the multiple traffic profiles.

Systems and methods for automatically building a deadlock free inter-communication network in a multi-core system are described. The example implementations described herein involve a high level specification to capture the internal dependencies of various cores, and using it along with the user specified system traffic profile to automatically detect protocol level deadlocks in the system. When all detected deadlock are resolved or no such deadlocks are present, messages in the traffic profile between various cores of the system may be automatically mapped to the interconnect channels and detect network level deadlocks. Detected deadlocks then may be avoided by re-allocation of channel resources. An example implementation of the internal dependency specification and using it for deadlock avoidance scheme is presented on Network-on-chip interconnects for large scale multi-core system-on-chips.