Patents Assigned to IXIA
  • Patent number: 9813448
    Abstract: A high density network arrangement for managing an integrated secured multiple networks arrangement is provided. The arrangement includes a power module for providing power to a circuitry of the high density network arrangement. The arrangement also includes a plurality of network interfaces, wherein each network interface of the plurality of network interfaces is configured for coupling with a network arrangement. The arrangement further includes a processor for providing processing capability to the high density network arrangement. The arrangement yet also includes logic arrangement for managing data traffic flowing through the plurality of network interfaces, wherein the data traffic is configured to traverse the high density network arrangement between the plurality of network arrangement interfaces irrespective whether the power is provided to the circuitry of the high density network arrangement.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: November 7, 2017
    Assignee: Ixia
    Inventors: Eldad Matityahu, Robert Shaw, Dennis Carpio, Siuman Hui, Wei Lian
  • Patent number: 9813925
    Abstract: According to one aspect, the disclosed subject matter describes herein a method that includes navigating, by a plurality of unmanned aerial vehicles (UAVs), a service coverage area associated with a wireless communications network, wherein the service coverage area includes a plurality of wireless access points and assigning, by at least one of the UAVs, wireless access points to one or more of the UAVs for wireless traffic testing. The method further includes executing, for each of the wireless access points, a wireless traffic test including test traffic data communicated between at least one of the UAVs and a tested wireless access point and determining, for each of the wireless access points to be tested, performance metric information associated with traffic data being wirelessly communicated between the tested wireless access point and the at least one of the UAVs.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: November 7, 2017
    Assignee: Ixia
    Inventor: Avinash Ramanath
  • Patent number: 9814008
    Abstract: Methods, systems, and computer readable media for receiving a clock synchronization message are disclosed. According to one exemplary method, the method occurs at a first node configured to operate on a protected side of a firewall device. The method includes sending, via the firewall device and to a second node configured to operate on a non-protected side of the firewall device, a clock lease message indicating an amount of time for clock synchronization, wherein the clock lease message triggers the firewall device to allow a clock synchronization message from the second node to the first node. The method also includes receiving, via the firewall device and from the second node, the clock synchronization message.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: November 7, 2017
    Assignee: IXIA
    Inventor: Marius Pavel Nistor
  • Patent number: 9813226
    Abstract: Methods, systems, and computer readable media for modeling a clock are disclosed. According to one exemplary method, the method occurs at a monitoring module associated with a first node. The method includes receiving packets from a second node, extracting timestamps from at least two of the packets, and generating, using the timestamps, clock related information for generating a local clock model indicative of a precision of a local clock at the first node relative to a clock at the second node.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: November 7, 2017
    Assignee: IXIA
    Inventor: Matthew R. Bergeron
  • Patent number: 9804899
    Abstract: Communications using the common object request broker architecture (CORBA) is disclosed. The communications are between a first computing device and a second computing device separated by a NAT device. The first computing device issues a request conforming to the CORBA protocol to obtain an IOR for an object from the second computing device. A first request interceptor on the first device adds a public IP address of the second computing device as user-defined data in the request. A second request interceptor on the second computing device extracts the IP address from the request and stores it. The second computing device builds the IOR for the object including embedding the public IP address of the second computing device in the IOR. The second computing device sends the IOR to the first computing device. The first computing device then establishes a successful connection to the public IP address received in the IOR.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: October 31, 2017
    Assignee: Ixia
    Inventor: Sergiu Buciuc
  • Patent number: 9807204
    Abstract: Methods, systems, and computer readable media for optimized message processing are disclosed. According to one exemplary method, the method includes receiving a message including header information. The method further includes determining, using the header information, whether a fast-path identification rule exists for identifying the message. The method also includes in response to determining that the fast-path identification rule does not exist, identifying the message using slow-path processing, determining the fast-path identification rule using the slow-path processing, and storing the fast-path identification rule in a memory.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: October 31, 2017
    Assignee: Ixia
    Inventor: Matthew R. Bergeron
  • Patent number: 9806968
    Abstract: An arrangement for storing data pertaining to network data traffic flowing through a network is provided. The arrangement includes a set of network cluster arrangements. Each network cluster arrangement of the set of network cluster arrangements includes a plurality of network devices configured for receiving and sending the network data traffic, and a set of monitoring network appliances configured for monitoring at least a portion of the network data traffic flowing between the plurality of network devices. The arrangement also includes a set of network data collection arrangements configured for at least storing the data pertaining to the network data traffic.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: October 31, 2017
    Assignee: IXIA
    Inventors: Eldad Matityahu, Robert Shaw, Dennis Carpio, Sharon Besser
  • Patent number: 9806980
    Abstract: Methods, systems, and computer readable media for precise measurement of switching latency of packet switching devices are disclosed. One method includes steps implemented in a network equipment test device including at least one processor. The method includes transmitting frames to a device under test. The method further includes receiving one of the transmitted frames from the device under test. The method further includes determining a measured latency of the device under test based on a difference between a time that the one frame was transmitted to the device under test and a time that the one frame was received from the device under test. The method further includes determining an indication of backlog latency of the device under test caused by the device under test inserting a virtual lane marker in traffic transmitted to the network equipment and reporting the indication of the backlog latency.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: October 31, 2017
    Assignee: Ixia
    Inventors: Michael D. Hutchison, Christopher M. Kowalski
  • Patent number: 9806907
    Abstract: Arrangements and methods for improving data communication in a network are disclosed. The method includes receiving data packets and segregating the data packets into at least original packets and replicated packets. The method also includes prioritizing original packets having service level agreement (SLA) requirements, the prioritizing is performed with respect to at least one of queuing and de-queuing such that SL parameters for the original packets met.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: October 31, 2017
    Assignee: IXIA
    Inventor: Youval Nachum
  • Patent number: 9800482
    Abstract: Signature-based latency extraction systems and related methods are disclosed for network packet communications. Disclosed embodiments generate packet signatures (e.g., hash values) for packets received with respect to points within a network packet communication system. For each received packet, its packet signature is compared to packet signatures stored for previously received packets. If no match is found, the packet signature and a timestamp associated with the newly received packet are stored within one or more packet data tables. If a match is found, then the difference between the timestamp associated with the newly received packet and a timestamp stored with the matching packet signature are used to determine a latency value. The latency values can then be used to determine a variety of latency-related parameters for the network infrastructure being measured, and classification information can also be used to generate latency-related histograms. A variety of embodiments can be implemented.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: October 24, 2017
    Assignee: IXIA
    Inventors: Shardendu Pandey, Scott Register
  • Patent number: 9800595
    Abstract: The subject matter described herein relates to method, systems, and computer readable media for detecting physical link intrusions. A method for detecting physical link intrusions includes monitoring a link delay signature associated with a physical link based on one-way link delay measurements obtained using at least one network tap. The method also includes determining whether a change in the link delay signature has met or exceeded a threshold value. The method further includes in response to determining that the change in the link delay signature has met or exceeded the threshold value, determining that a physical link intrusion has occurred.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: October 24, 2017
    Assignee: Ixia
    Inventor: Stephen Samuel Jackson
  • Patent number: 9785527
    Abstract: Methods, systems, and computer readable media for emulating virtualization resources are disclosed. According to one method, the method occurs at a computing platform. The method includes receiving a message associated with a device under test (DUT) and in response to receiving the message, performing an action associated with at least one of an emulated hypervisor and an emulated virtual machine (VM).
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: October 10, 2017
    Assignee: IXIA
    Inventors: Alon Regev, Deepesh Arora, Toshal Dudhwala, Anirban Majumder
  • Patent number: 9780988
    Abstract: Systems and methods are disclosed herein to provide improved clock synchronization between wireless data communication transmitters and receivers, including Orthogonal Frequency Division Multiplexing (OFDM) communication systems. In accordance with one or more embodiments, a clock synchronization system is disclosed that includes an adaptive threshold function operative in conjunction with a synchronizer that adjusts the frequency and phase of a receive clock oscillator. Such a synchronization system may offer improved capabilities such as resistance to radio frequency (RF) channel impairments and noise, rejection of mis-decoded clock synchronization signals, and handling of multiple transmitters.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: October 3, 2017
    Assignee: Ixia
    Inventors: Thomas Alexander, David Jennings Wicker
  • Patent number: 9774618
    Abstract: The subject matter described herein relates to methods, systems, and computer readable media for assessing attack vulnerability of radio access network equipment. One method for assessing the attack vulnerability of a radio access network device includes emulating at least one good UE. The method further includes emulating at least one bad UE. The method further includes transmitting traffic from the emulated good and bad UEs to a non-simulated radio access network device under test. The method further includes monitoring a response of the radio access network device under test to the emulated good UEs. The method further includes generating output indicative of attack vulnerability of the device under test.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: September 26, 2017
    Assignee: Ixia
    Inventors: Kalyan R. Sundhar, Bijith Raghunandan Rao
  • Patent number: 9769291
    Abstract: Methods, systems, and computer readable media for facilitating the resolving of endpoint hostnames in test environments with firewalls, network address translators (NATs), or clouds is disclosed. According to one exemplary method, the method occurs at a registration server configured to operate in a public network. The method includes receiving, from a first endpoint, a packet including a payload containing a first address and a hostname associated with the first endpoint. The method also includes identifying a second address from a header of the packet. The method also includes initiating, using the second address, a connection to the first endpoint. The method also includes determining whether the connection is successful. The method further includes associating the hostname of the first endpoint with one of the first address and the second address based on results of the determination.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: September 19, 2017
    Assignee: IXIA
    Inventors: Marius Pavel Nistor, Mihail Florin Constantinescu, Nicolas Ribault
  • Patent number: 9749213
    Abstract: Methods, systems, and computer readable media for microburst testing are disclosed. According to one method, the method includes defining a test that is divided into one or more test cycles, wherein each test cycle includes a plurality of time intervals for providing packets to destination ports of N ports of the network equipment test device via a plurality of ports of a network switch under test, wherein N is an integer. The method further includes initializing a replication count. The method also includes executing an instance of the test using the replication count. The method further includes monitoring packets switched by each port of the network switch under test to determine an indication of buffering capacity of each port of the network switch under test.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: August 29, 2017
    Assignee: Ixia
    Inventors: Noah Steven Gintis, Vinod Joseph, Anton-Valentin Pandichie, Cristian Florin Iordache
  • Patent number: 9749261
    Abstract: Methods and arrangements are provided for minimizing delay in a high-speed tap arrangement are disclosed and include hardware and software arrangements and methods for quickly switching the transmission path for data between a primary data path and a bypass data path. The switching is accomplished rapidly using set of powered analog switches and a relay to minimize packets loss in the event of power loss. Further, when power is restored, software and hardware methods and arrangements disclosed herein permit the data path to be promptly restored resulting in the restoration of tapping ability quickly after power is restored.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: August 29, 2017
    Assignee: IXIA
    Inventors: Eldad Matityahu, Robert Shaw, Shlomo Gurfinkel, Siuman Hui
  • Patent number: 9743297
    Abstract: Methods, systems, and computer readable media for testing wireless devices is disclosed. In some examples, a system for testing wireless devices in wireless environments comprises a test server and a wireless device tester implemented on the test server. The test server includes at least one processor and memory storing, for each wireless device of different types of wireless devices, a wireless emulation waveform received from the wireless device during operation of the wireless device. The wireless device tester is configured for receiving emulation requests specifying wireless devices and wireless environments for testing. The wireless device tester is configured for transmitting, for each request, a responsive wireless emulation waveform to a wireless device emulator physically located in the specified wireless environment and determining a performance metric for the wireless device within the specified wireless environment.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: August 22, 2017
    Assignee: Ixia
    Inventor: Stephen Samuel Jackson
  • Patent number: 9736804
    Abstract: Methods, systems, and computer readable media for synchronizing timing among network interface cards in a network equipment test device are disclosed. One method includes generating and sending timing synchronization measurement signals to the management network interface card and a test network interface card in the network equipment test device. The method further includes recording times of receipt of the timing synchronization measurement signals at the management network interface card and the test network interface card. The method further includes adjusting timing of the test network interface card using the times of receipt of the timing synchronization measurement signals.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: August 15, 2017
    Assignee: Ixia
    Inventor: Alon Regev
  • Patent number: 9735870
    Abstract: A system for monitoring data traversing a bidirectional optical fiber includes a network tap. The network tap includes first and second network ports for bidirectional data transmission over a first optical fiber. The device includes first and second tap ports respectively associated with the first and second network ports. The first network port receives data transmitted in a first direction over the first optical fiber and at a first wavelength and provides the data to the second network port and to the first tap port. The second network port receives data transmitted in a second direction opposite the first direction over the first optical fiber and at a second wavelength different from the first wavelength and provides the data to the first network port and to the second tap port. The first and second tap the first and second tap ports provide the data to one or more network monitoring devices.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: August 15, 2017
    Assignee: IXIA
    Inventors: Randy Fung, Marcel Felix Desdier