Patents Assigned to Cisco Technology
  • Patent number: 10321397
    Abstract: An example method is provided in one example embodiment and may include receiving a power saving mode (PSM) request by a long range radio, wherein the PSM request comprises an identification of at least one receive window to disable for the long range radio for a plurality of uplink transmissions and an identification of a duration for which the at least one receive window is to be disabled for the plurality of uplink transmissions; and transmitting the plurality of uplink transmissions by the long range radio, wherein the at least one receive window is disabled following each uplink transmission of the plurality of uplink transmissions by the long range radio for the duration identified in the PSM request.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: June 11, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Indermeet Singh Gandhi, Srinath Gundavelli, Ramachandra Srinivasa Murthy
  • Patent number: 10320658
    Abstract: In one embodiment, a method is described. The method includes receiving a network communication at a network device of a redundancy group. The redundancy group comprises a plurality of network devices, and the plurality of network devices are addressed in a first network using an anycast address. The method further includes, if the network communication is received from the first network, forwarding the network communication into a second network. If the network communication is received from the second network, the method determines whether to forward the network communication into the first network based on a status of the network device in the redundancy group, and a result of a filtering operation.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: June 11, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Ali Sajassi, Dezhong Cai
  • Patent number: 10320613
    Abstract: In one embodiment, a device in a network loads a selectable lexicon. The device receives a command that uses the loaded lexicon. The device interprets the command using the loaded lexicon. The device generates a configuration for one or more network nodes in the network based on the interpreted command. The device causes the one or more network nodes to implement the configuration.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: June 11, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Nancy Cam-Winget, Dieter Derek Weber, Srikanth Ranganamyna
  • Patent number: 10320824
    Abstract: In one embodiment, a device in a network receives traffic metrics for a plurality of applications in the network. The device populates a feature space for a machine learning-based anomaly detector. The device identifies a missing dataset in the feature space for a particular one of the plurality of applications. The device adjusts how traffic is sent in the network, to capture the missing dataset.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: June 11, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Jean-Philippe Vasseur, Grégory Mermoud, Laurent Sartran
  • Patent number: 10317958
    Abstract: The embodiments herein describe a computing device (e.g., a storage server) that includes at least one telescoping unit which includes a plurality of removable (or pluggable) hardware components. The computing device includes a chassis which defines a form factor of the computing device. The telescoping unit, when prompted by the user, can extend vertically from a top surface of the computing device. By doing so, the pluggable hardware components are then exposed to the user who can add or replace the components. In one embodiment, the telescoping unit includes telescoping links disposed on opposite sides which are used to guide or urge the telescoping unit vertically from the chassis. Cross links may be coupled between first and second rails where one end of each of the links is coupled to a sliding member in the rail while the other end is fixably attached to the rail.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: June 11, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Le Gao, Na Feng, Yang Sun, Ye Peng Chen
  • Patent number: 10313155
    Abstract: In one embodiment, an authoritative edge device (AED)-server in a computer network maintains assignment of an active AED for a particular virtual local area network (VLAN), and in response to a triggered re-assignment, sends an AED change request identifying an old active AED for the particular VLAN and a new active AED for the particular VLAN (e.g., and/or corresponding backups). In response to receiving the change request, the old active AED ceases forwarding of traffic for the particular VLAN and transmits a relinquishment confirmation into the network. Also, in response to receiving the change request and the relinquishment confirmation from the old active AED, the new active AED assumes responsibility for traffic forwarding for the particular VLAN and transmits an activation confirmation into the network. The change request is then deemed completed by the AED-sever upon receipt of both the relinquishment confirmation and the activation confirmation.
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: June 4, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Gaurav Badoni, Dhananjaya Rao, Hasmit Grover, Senthil Kenchiah, Vrushali Ashtaputre
  • Patent number: 10310183
    Abstract: The embodiments of the present disclosure describe forming a semiconductor layer (e.g., III-V semiconductor material) on a silicon substrate using a template. In one embodiment, the template is patterned to form a plurality of cylindrical openings or pores that expose a portion of the underlying silicon substrate. The material of the semiconductor is disposed into the pores to form individual crystals or monocrystals. Because of the lattice mismatch between the crystalline silicon substrate and the material of the semiconductor layer, the monocrystals may include defects. However, the height of the pores is controlled such that these defects terminate at a sidewall of the template. Thus, the monocrystals can be used to form a single sheet (or single crystal) semiconductor layer above that template that is defect free.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: June 4, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Harry E. Ruda, Igor Savelyev, Marina Blumin, Christina F. Souza
  • Patent number: 10312979
    Abstract: A wireless access point device wirelessly communicates with a plurality of wireless client devices. The wireless access point includes a central processor subsystem and a plurality of transceiver devices each including a plurality of antennas, and a plurality of radio transceivers, each of the plurality of transceiver devices configured for deployment throughout a coverage area, each transceiver device being connected to the central processor subsystem via a respective cable. The central processor subsystem distributes in-phase and quadrature baseband samples across the plurality of transceiver devices associated with traffic to be transmitted and received via the plurality of transceiver devices in one or more frequency bands so as to synthesize a wideband multiple-input multiple-output transmission channel and a wideband multiple-input multiple-output reception channel. The access point transmit and receive functions are “split” or partitioned across the plurality of transceivers devices.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: June 4, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Brian D. Hart, Paul J. Stager, David Kloper, Jie Cheng Jiang
  • Patent number: 10313227
    Abstract: One embodiment of the present invention provides a system for correctly processing interests in an information-centric network (ICN). During operation, the system receives, by a first node in the ICN, an interest for a piece of content from a second node. The interest specifies a name of the content piece. The system determines, based on forwarding information and information associated with pending interests stored on the first node, whether a forwarding condition or an interest aggregation condition is satisfied. In response to the forwarding condition being satisfied, the system forwards the interest. In response to the interest aggregation condition being satisfied, the system aggregates the interest.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: June 4, 2019
    Assignee: Cisco Technology, Inc.
    Inventor: Jose J. Garcia-Luna-Aceves
  • Patent number: 10313396
    Abstract: Techniques are provided by which devices in a network may subscribe to a rapidly changing rules in central threat repository. The policies associated with threats are filtered so that just current attack vectors from within subnets learned via routing and/or forwarding information (at the network level of the network) are installed in the local access control list/policy database of the network devices. As routing changes occur, the list of applied policies are continually refined/revisited and pulled from a central security application. Publish/subscribe mechanisms ensure “zombie” policies are not left over in the device after reboot or routing changes occur.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: June 4, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Eric A. Voit, Jyoti Verma
  • Patent number: 10310944
    Abstract: In one embodiment, a device receives a router advertisement message after a power outage event in a network. The device joins the network, in response to receiving the router advertisement message. The device sends a power restoration notification message via the network. The device selectively delays a disconnected node from joining the network.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: June 4, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Jonathan W. Hui, Jean-Philippe Vasseur, Wei Hong
  • Patent number: 10313224
    Abstract: Presented herein are techniques to enable seamless mobility of hosts (endpoints) between disaggregated Ethernet virtual private network (EVPN) domains that are connected with one another by an external network (e.g., a Wide-Area Network (WAN)). In one example, a leaf node in the first domain, which was previously connected to a host, receives updated routing information for the host. The leaf node performs a local host verification process to confirm that the host has moved and, in response to confirming that that the host has moved, the first leaf node sends a targeted host announcement message to the host in the second domain.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: June 4, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Sathish Srinivasan, Vrishabha Sikand, Shyam N. Kapadia, Lukas Krattiger, Massimiliano Ardica
  • Patent number: 10313153
    Abstract: In one embodiment, a device in a network monitors Ethernet virtual private network (EVPN) traffic in the network for a plurality of media access control (MAC) addresses. The device generates a machine learning-based traffic model for the MAC addresses based on the monitored EVPN traffic. The device determines a timeout for a particular one of the MAC addresses based on traffic predicted by the machine learning-based traffic model for the particular MAC address. The device causes the particular MAC address to be timed out from one or more forwarding tables in the network based on the determined timeout.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: June 4, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Nagendra Kumar Nainar, Carlos M. Pignataro, Alejandro A. Eguiarte Salazar, Rajiv Asati
  • Patent number: 10312968
    Abstract: One embodiment is a system including a data collector located in a cable network for capturing multi-tone signals traversing the cable network; a data repository located in a cloud network and having an interface for communicating with the data collector and for storing the multi-tone signals captured by the data collector and network data associated with the cable network; and a central server including a memory element storing Predictive Services Management (PSM) algorithms comprising instructions and associated data and a processor operable to execute the PSM algorithms. The central server is configured for detecting a fault in the cable network and identifying a segment associated with the fault; determining a maximum tap magnitude for the fault; calculating an aggregate tap magnitude for the fault; and classifying a severity of the fault based at least in part on the maximum tap magnitude and the aggregate tap magnitude.
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: June 4, 2019
    Assignee: Cisco Technology, Inc.
    Inventor: Hang Jin
  • Patent number: 10313415
    Abstract: According to one aspect, a method includes obtaining a packet at a network endpoint from a client via a first segment. The packet has a segment routing header that includes a list of addresses attached to a chunk entry, and is configured to identify at least a first chunk requested by the client. The method also includes identifying, at the network endpoint, the at least first chunk using the packet, and determining at the network endpoint if the network endpoint has the first chunk. If it is determined that the network endpoint has the first chunk, the first chunk is provided from the network endpoint to the client. Alternatively, if it is determined that the network endpoint does not have the first chunk, the packet is provided to a second segment.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: June 4, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Andre Surcouf, William Mark Townsley, Thierry Gruszka
  • Patent number: 10313786
    Abstract: A device including an array of bidirectional microphones optimizes the echo rejection of the bidirectional microphones. The microphone array receives audio from an audio source and generates audio signals from each of the bidirectional microphones. The device forms audio beams from combinations of the audio signals generated from the microphone array. Each audio beam captures audio from either its positive polarity zone or its negative polarity zone. The device determines a direction of the audio source and selects a perpendicular audio beam pair based on the direction of the audio source. The perpendicular audio beam pair includes a primary audio beam aimed toward the direction of the audio source and a secondary beam perpendicular to the primary audio beam. The device generates an output signal by combining the primary audio beam with the secondary audio beam based on polarity zone the audio is captured for each audio beam.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: June 4, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Feng Bao, David William Nolan Robison, Tor A. Sundsbarm, Fei Yang
  • Patent number: 10311230
    Abstract: In various implementations, a method of identifying anomalies is performed by a first network node that is configured to maintain a distributed ledger in coordination with a plurality of network nodes. In various implementations, the first network node includes one or more processors, a non-transitory memory, and one or more network interfaces. In various implementations, the method includes determining a characteristic value based on information associated with the distributed ledger. In some implementations, the distributed ledger stores blocks of transactions that were added to the distributed ledger based on a consensus determination between the plurality of network nodes. In various implementations, the method includes determining whether a current transaction satisfies the characteristic value. In various implementations, the method include indicating whether there is an anomaly based on a function of the current transaction in relation to the characteristic value.
    Type: Grant
    Filed: December 24, 2016
    Date of Patent: June 4, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Ramanathan Jagadeesan, Judith Ying Priest, Anoop Nannra
  • Publication number: 20190166002
    Abstract: Elastic capacity management of remote physical layer (R-PHY) nodes with a cloud Cable Modem Termination System (cCMTS) may be provided. First, a cCMTS instance may be spawned by an orchestrator. Next, the cCMTS instance may be synchronized with states of a physical Cable Modem Termination System (pCMTS). Underlay routing may then be configured between a plurality of remote physical layer (R-PHY) nodes and the cCMTS instance. Then a plurality of R-PHY node connections respectively corresponding to the plurality of R-PHY nodes may be switched from the pCMTS to the cCMTS instance.
    Type: Application
    Filed: November 28, 2017
    Publication date: May 30, 2019
    Applicant: Cisco Technology, Inc.
    Inventors: YuLing Chen, Tung-Fai Chan, Alon Shlomo Bernstein
  • Publication number: 20190166178
    Abstract: Synchronized source selection for adaptive bitrate (ABR) encoders may be provided. First, a first adaptive transport stream (ATS) that is aligned with a second ATS produced by a second device may be provided from a first source by a first device. The first device may be fed from the first source. Next, an indication that the second device switched from being fed from the first source to being fed from a second source may be received. In response to receiving the indication, the first device may be switched from being fed from the first source to being fed from the second source. The first ATS that is aligned with the second ATS produced by the second device may then be produced from the second source by the first device.
    Type: Application
    Filed: November 28, 2017
    Publication date: May 30, 2019
    Applicant: Cisco Technology, Inc.
    Inventors: Samie Beheydt, Henk Derudder, Carol E. Iturralde
  • Patent number: 10305864
    Abstract: One embodiment provides a system that facilitates efficient content exchange in a CCN. During operation, the system receives, generates, by a client computing device, an interest with a name that includes a routable prefix and a first hash of one or more original name components, wherein the name is a hierarchically structured variable length identifier that includes contiguous name components ordered from a most general level to a most specific level. The system computes a key based on a second hash of the original name components and a randomly generated first nonce. The system encrypts a payload of the interest with the key, wherein the interest indicates the first nonce. In response to transmitting the interest, wherein the interest allows a receiving content producing device to compute the key and decrypt the payload, the system receives receiving a content object with a payload encrypted based on the key.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: May 28, 2019
    Assignee: Cisco Technology, Inc.
    Inventor: Christopher A. Wood