54 results about "Packet analyzer" patented technology

A home agent management apparatus and method for routing a packet using a home network equipment as a home agent in a mobile Inter Protocol version 6 (IPv6) are provided. The home agent management apparatus includes a packet analyzer, which receives a packet and analyzes the packet; a database, which stores information indicating whether a home agent of a home network operates normally according to the result of the analysis; and a home agent function executor, which performs a home agent function in place of the home agent when the home agent does not operate normally. Accordingly, a load concentrated on a home agent of an Internet Service Provider (ISP) can be split.

A medium streaming distribution system reduces effects of packet loss in a network before the packet reaches radio base station. A medium distribution device for packet-transmits via the base station, a medium stream to the network by a real time transmission protocol. A packet analyzer monitors the packet arriving at the radio base station and transmits feedback Information associated with loss of a packet to the medium distribution device. Based on the feedback from a relay device and a terminal device of the medium stream, the transmission rates from the medium distribution device to the relay device and from the relay device to the terminal device are obtained to provide a greater transmission rate in a surplus band for re-transmission or a forward error correction.

There are disclosed a system, a test head and a method for testing a device under test. Two or more test heads may be mated directly with respective connectors on the device under test. Each test head may include a traffic generator including a stateless packet builder to generate stateless traffic for transmission to the device under test, and a traffic receiver including a stateless packet analyzer to accumulate traffic statistics on stateless traffic received from the device under test. A server coupled to the two or more test heads via respective communications links, may generate stateful traffic for transmission to the device under test by the two or more test heads, and may process stateful traffic received from the device under test by the two or more test heads.

A medium streaming distribution system reduces effects of packet loss in a network before the packet reaches radio base station. A medium distribution device for packet-transmits via the base station, a medium stream to the network by a real time transmission protocol. A packet analyzer monitors the packet arriving at the radio base station and transmits feedback information associated with loss of a packet to the medium distribution device. Based on the feedback from a relay device and a terminal device of the medium stream, the transmission rates from the medium distribution device to the relay device and from the relay device to the terminal device are obtained to provide a greater transmission rate in a surplus band for re-transmission or a forward error correction.

A downstream external PHY interface (DEPI) interface apparatus for a modular-cable modem termination system (M-CMTS) cable system complying with a data over cable service interface specifications (DOCSIS) standard is provided. The DEPI interface apparatus for an M-CMTS cable system complying with the DOCSIS standard includes: an Ethernet interface transmitting Ethernet data packets to and receiving Ethernet data packets from a service providing device including at least one of an M-CMTS core, a video server, and a video encoder; an Ethernet packet analyzer analyzing Ethernet data packets, thereby extracting a control message and classifying the Ethernet data packets into corresponding sessions; a DEPI controller interpreting the extracted control message and completing control connection signaling and session signaling with the service providing apparatus; a transmission data processor extracting transmission data from the Ethernet data packets classified by session and outputting the transmission data as an MPEG-2 transport stream (TS) packet stream; and an output interface outputting the output MPEG-2 TS packet stream to a quadrature amplitude modulation (QAM) modulator of a channel corresponding to the stream.

A system and method for discovering network elements are disclosed where each network element includes a multicast packet sender for issuing a multicast packet addressed to a unique group, including a local register host, located in a common subnet. A packet analyzer in the local register host determines the identification of the issuing network element for comparison with entries in a local register host device table. The device table is continually synchronized with a master device table resident in a central management station by either adding a new entry in the master device table if the issuing network element has come ‘online’ or by deleting an existing entry for a network element which has not issued a multicast packet within a specified time.

A system for monitoring network traffic and resource usage in a data center. The system comprises a node comprising an input terminal for capturing network packets. The node comprises a processor for running a packet analyzer for analyzing the network packets classifying packets in request / response pairs per type based on deep packet inspection and storing the request / response pair types together with time stamps. The node comprises a memory configured for storing the request / response pairs. The system comprises a collector module configured for collecting the request / response pairs. The system comprises at least one server running a simple agent programmed for transferring resource usage. The system comprises a correlation module programmed for correlating the request / response pairs information with the resource usage.

The invention discloses a device for realizing communication between a 350M analog cluster talkback system and a POC (PTT Over Celluar) talkback system. The device comprises an interface gate device, wherein the interface gate device comprises a main control module, a 350 cluster system signaling analyzing module, a 350 cluster system voice packet analyzer, a POC function module, a cluster member mapping table, an AD / DA (Analog-Digital / Digital-Analog) conversion module and a voice encoding and decoding device; the main control module is connected with a 350M analog cluster system server respectively by the 350 cluster system signaling analyzing module and the 350 cluster system voice packet analyzer, and is connected with the POC function module, the cluster member mapping table and the AD / DA conversion module; the AD / DA conversion module is connected with the POC function module by the voice encoding and decoding device; and the POC function module is in wireless connection with a POC cluster system server by the Internet. According to the device disclosed by the invention, the communication between the 350M analog cluster talkback system and the POC (PTT Over Celluar) talkback system is realized and the mutual communicating performance is good.

A system for preventing private information from leaking out through access context analysis in a personal mobile terminal includes a private information manager that receives a private information leakage prevention policy, divides the policy into a plurality of private information leakage prevention rules, and transmits the plurality of rules to individual modules, respectively; a context analyzer that performs access context information analysis to obtain context information, when detecting a packet corresponding to a first rule, and transmits the context information; a packet analyzer that receives the context information, monitors packets transmitted to the outside through packet analysis, and transmits filtering information when detecting a packet corresponding to a second rule; and a private information leakage preventing unit that receives the filtering information and determines whether to allow or drop a packet corresponding to a third rule.

The invention discloses a medium and high speed sensor network testing system, comprising a data packet generator, a data packet analyzer, a network management proxy, a service emulator, a network topology emulator and a central platform, wherein the central platform comprises an emulation server, an application server, a data server and a master processing server, and the application server and the data server are simultaneously connected with the master processing server and the emulation server. According to the embodiment of the invention, targeting on the characteristics of uncertainty of the application environment of the medium and high speed sensor network, the dynamic nature of the network system and the unreliability of wireless communication, a set of complete testing system structure is built, the central platform uniformly sends test commands, and the test data are uniformly collected in the central platform, thus, different test environments can be emulated, functions of systemic test and verification, network performance test analysis, network monitoring and fault diagnosis for the medium and high speed sensor networks are realized, and the medium and high speed sensor network testing system can be adapted to the test on the low speed sensor network.

The invention provides a bridging method and a bridging device for a protocol and the invention is applicable to a digital household network. The method comprises the following steps: a received original network data packet is analyzed and data in a interconnection and intercommunication layer is taken out to generate a new network data packet; according to the transformation rules between the corresponding protocol of the original network data packet and the target protocol, a new network data packet is transformed into an abstract interlayer data packet which is irrelevant to the protocol; the data packet of the abstract interlayer is transformed into a target data packet corresponding to the target protocol. The device comprises a protocol transformation rule memory, a protocol metadata model memory, a protocol data packet analyzer, a protocol data packet converter and a protocol data packet matcher. In the invention, a source network data packet is transformed into an abstract interlayer data packet and the abstract interlayer data packet is then transformed into a target network data packet, thus realizing an interconnection and intercommunication as well as resource sharing among networks or among devices with different protocols.

A packet processing device for effectively assembling packets. A packet accumulator stores received packets. A packet analyzer extracts, from the packets, analysis information about flows to which the packets belong. A frequency predictor calculates a frequency prediction value based on the reception interval of packets belonging to an identical flow, and stores the calculated value in a frequency prediction storage. Also, in response to input of the analysis information, the frequency predictor reads the corresponding frequency prediction value and sends the read value to a flow processor. The flow processor generates flow information on the flow corresponding to the analysis information, and analyzes the generated flow information and those stored in a flow information storage, to select an assembling termination flow based on the frequency prediction values. A packet transfer unit reads the packets corresponding to the selected flow from the packet accumulator and transfers the packets to a host.

In a video TS packet separator, a video TS packet VTSP is extracted from a TS (transport stream). In a PES packet analyzer through a TS packet generator, the video TS packet is decoded, re-encodes at a predetermined bit rate, TS-packetized and supplied to a switch input terminal. The switch input terminal is also supplied with non-video TS packets UVTSP from a TS packet buffer. A controller is provided to control the TS packet generator and switch based on timing information and PCR from a TS packet timing manager. Thus, codes in the TS can be converted.

An apparatus for detecting and adjusting volumes levels may include a processor capable of receiving data from a carrier(s). The processor is also capable of receiving trigger control signals from a trigger control and arranging the data into frames that are stored in a buffer. The processor is also capable of determining whether the trigger control signals include data indicating whether a determination regarding adjustment of a volume level of the data is required. The apparatus also includes a packet analyzer capable of calculating an average volume level associated with the frames when a determination reveals that adjustment of the volume level is required and is capable of generating categories, corresponding to intensity levels and categorizing the frames according to the intensity levels based on the average. The packet analyzer is also capable of determining whether to adjust the volume level based on a category assigned to the frames.

The invention discloses a method of realizing PTP nanosecond precision based on a hardware time stamp. A PTP protocol stack module, a clock algorithm module, a network interface and a time stamp unit module are mainly included. The PTP protocol stack module has a main function of acquiring a time packet from a remote PTP server for mainly realizing a slave clock function in an IEEE1588-2008v2 protocol, and unicast and multicast modes are supported; the clock algorithm module is used for evaluating time and frequency errors according to the time stamp in the PTP protocol, the evaluated frequency error can be used for correcting frequency offset of the hardware, and the evaluated time error can be used for correcting a time stamp clock; the time stamp unit module is used for accurately measuring the packet in-out time and mainly comprises a packet analyzer, a time stamp clock, multiple temporary queues for storing the time stamp and the like; and a clock and frequency control unit module acquires the time stamp via the time stamp unit module.

The present invention relates to an encryption unit (3200) for encrypting at least one packet (P1, P2) according to a predetermined cryptographic protocol, wherein the predetermined cryptographic protocol requires exchanging of service channel information, wherein the service channel information has a first bit length, the encryption unit comprising: a packet analyzer (3210) configured to recognize whether the packet (P1, P2) has unused bits, a packet builder (3220) configured to insert the service channel information in the packet (P1, P2) if the number of unused bits is equal to or larger than the first bit length, and an encryption engine (3230) configured to encrypt the packet (P1, P2) according to the predetermined cryptographic protocol.

A method and an apparatus dynamically controls a sleep mode in an MS in a packet-based communication system. A packet analyzer analyzes a type of a packet that the MS transmits or receives. A controller sets a timer to a timer value according to the analyzed type of the packet.

A path analyzer to obtain an address of a relay node on a path between a first terminal device and a second terminal device includes: a first address obtaining unit to issue a command requiring a response from the first terminal device to the second terminal device and to obtain as a first address an address of a first terminal device side in the relay node on the path; a broadcast processing unit to search a candidate address for a broadcast address from the relay node according to the first address obtained and to issue a command requiring a response from the first terminal device to the candidate address; and a second address obtaining unit to obtain as a second address an address of a second terminal device side in the relay node on the path according to a response to the command issued by the broadcast processing unit.

A stream data processor includes a PES buffer for storing PES data, a decoder for retrieving the PES data from the PES buffer and decoding the PES data, a boundary detector for detecting a packet boundary of a PES packet of the PES data, and a packet analyzer for analyzing a PES packet header included in the stream data. The packet analyzer analyzes the packet header in response to the detection of the packet boundary. The decoder suspends retrieving the PES data from the PES buffer in response to the detection of the PES packet boundary by the boundary detector. Further, the encoder resumes retrieving the PES data from the PES buffer according to a result of the analysis of the packet header by the packet analyzer.

The invention discloses an intelligent self-service banking video monitoring system which includes a banking automatic teller machine (ATM), a digital video recorder (DVR), a behavior analyzer, a face analyzer, a network transmission unit and a monitoring center. A cash outlet panel camera, a cash withdrawal face camera and a panoramic camera are all connected to the network transmission unit through the DVR. The cash outlet panel camera and the cash withdrawal face camera are both connected to the network transmission unit through the face analyzer. The panoramic camera is connected to the network transmission unit through the behavior analyzer. The monitoring center is connected to the network transmission unit. According to the invention, the behavior recognition and face automatic capture modules are integrated, real-time analysis of self-service banking monitoring video can be conducted, abnormal events are detected, security resources are minimized, and the security efficiency is improved. The intelligent self-service banking video monitoring system has good economic and social benefits. The invention can be widely applied to various self-service banking monitoring systems.

A wireless connection terminal unit is controlled to download a web page in portable Internet, the control apparatus including a HTTP packet analyzer for analyzing a starting a HTTP packet and a HTTP session management unit including a HTTP packet transmitting / receiving information table at which HTTP request packet information is recorded. The HTTP session management unit controls a HTTP session unit according to characteristics of a web page to be down-loaded such that resource maintenance can be efficiently performed and competition for establishing connection and time for downloading a web page can be reduced.

A method, system, apparatus, and computer program product are presented for a dynamically locatable packet analyzer spread across a distributed network of endpoints for determining packet generating applications is provided. In particular, the analyzer determines which ports are being used by which applications in order to verify that only intended packets are being sent and received by endpoints. The analyzer also provides novice packet snooping by not requiring administrators to configure operating system specific, packet specific or port specific information. The analyzer also provides snooping per application type (i.e. security, discovery, etc.) on endpoints, rather than packet type or port only.

In a packet repeater of a wireless base station, a packet analyzer receives uplink packets from mobile terminals and stores data indicating quality of each wireless link between the base station and each mobile terminal in a memory. A packet sorter receives downlink packets from a network and stores the received packets into buffers according to the destinations of downlink packets and their service classes. According to the data stored in the memory, packets in the buffers are into a first group of queues in which quality of service is not satisfied and a second group of queues in which quality of service is satisfied. A packet scheduler sequentially transmits all packets from the first-group queues to mobile terminals, and reorders the second-group queues in a descending order of their qualities of wireless links and sequentially transmits all packets from the reordered queues to the mobile terminals.

A network stack includes a packet loss analyzer that distinguishes between packet losses due to congestion and due to lossyness of network connections. The loss analyzer observes the packet loss patterns for comparison with a packet loss model. The packet loss model may be based on a Forward Error Correction (FEC) system. The loss analyzer determines if lost packets could have been recovered by a receiving network device, if FEC had been used. If the lost packets could have been corrected by FEC, the loss analyzer assumes that no network congestion exists and that the packet loss comes from the lossy aspects of the network, such as radio interference for wireless networks. If the loss analyzer determines that some of the lost packet could not have been recovered by the receiving network device, the loss analyzer assumes that network congestion causes these packet losses and reduces the data rate.

A scalable packet analyzer receives data packets from a data packet source for packet analysis and includes a plurality of policy engine arrays, each having a plurality of packet analysis microengines. A policy algorithm loader module is operative with each packet analysis microengine for loading a policy algorithm to each packet analysis microengine such that each packet analysis microengine analyzes specific sections of the data packet in parallel within each policy engine array based on the applied policy algorithm to obtain data about the data packet for further data packet processing.

In one embodiment a system is described, the system including a transceiver disposed at a contact center configured to receive at least one media packet sent during a communication session over a first communication channel, the communication session being established between the contact center and a first party a packet analyzer configured to analyze a quality of the at least one media packet received by the transceiver and a processor configured to determine a routing plan for the at least one media packet, the routing plan depending on the analyzed quality of the at least one media packet, wherein if the quality of the at least one media packet exceeds an acceptability threshold, then the routing plan comprises the processor routing return packets over the first communication channel, and if the quality of the at least one media packet does not exceed the acceptability threshold, then the routing plan comprises the processor taking a corrective action. Related systems, apparatus and methods are also described.