Patents Assigned to Cisco Technology
  • Patent number: 10771331
    Abstract: In one embodiment, a device receives traffic telemetry data captured by a plurality of networks and used by device classification services in the networks to classify endpoints in the networks with device types. The device compares the telemetry data from a particular one of the networks to the telemetry data from the other networks to identify one or more traffic characteristics that are missing from the telemetry data for one or more endpoints of the particular network. The device identifies a networking entity in the particular network that is common to the one or more endpoints for which the one or more characteristics are missing. The device determines a configuration change for the networking entity by comparing a current configuration of the entity to those of one or more entities in the other networks. The device initiates implementation of the determined configuration change for the entity in the particular network.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: September 8, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Grégory Mermoud, Pierre-André Savalle, Jean-Philippe Vasseur, Kevin Gagnon
  • Patent number: 10771109
    Abstract: A hybrid active tap may be provided. The hybrid active tap may comprise a first branch and a second branch. The first branch may be disposed between a first diplexer and a second diplexer. The first branch may correspond to a first frequency spectrum. The second branch may be disposed between the first diplexer and the second diplexer. The second branch may correspond to a second frequency spectrum. The hybrid active tap may further comprise a third branch, a fourth branch, a splitter, and an amplification device. The third branch may be disposed between a first coupler and a third diplexer. The first coupler may be coupled to the first branch. The fourth branch may be disposed between a second coupler and the third diplexer. The second coupler may be coupled to the second branch. The splitter may be connected to the third diplexer and the amplification device may be disposed in the first branch.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: September 8, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Hang Jin, John T. Chapman
  • Patent number: 10771405
    Abstract: A source access network device multicasts copies of a packet to multiple core switches, for switching to a same target access network device. The core switches are selected for the multicast based on a load balancing algorithm managed by a central controller. The target access network device receives at least one of the copies of the packet and generates at least metric indicative of a level of traffic congestion at the core switches and feeds back information regarding the recorded at least one metric to the controller. The controller adjusts the load balancing algorithm based on the fed back information for selection of core switches for a subsequent data flow.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: September 8, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Eric M. Levy-Abegnoli, Pascal Thubert, Patrick Wetterwald
  • Patent number: 10769531
    Abstract: Various systems and methods for counting people. For example, one method involves receiving input data at an analytics system that includes a neural network. The input data includes a representation of an environment, including representations of several people. The method also includes identifying the representations of the people in the representation of the environment. The method also includes updating an output value that indicates the number of people identified as being present in the environment.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: September 8, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Hugo M. Latapie, Enzo Fenoglio, Santosh G. Pandey, Andre Surcouf
  • Patent number: 10771269
    Abstract: Automated intelligent node setup and configuration in a Hybrid Fiber-Coaxial (HFC) Network may be provided. First, a desired operating profile for a node connected in a Hybrid Fiber-Coaxial (HFC) network may be determined by a computing device. Next, based on the desired operating profile, a setting for at least one component in the node may be determined by the computing device. Then the at least one component in the node may be adjusted remotely by the computing device to the determined setting.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: September 8, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: John Holobinko, John Alexander Ritchie, Jr., John Skrobko, Huang Ping
  • Patent number: 10771378
    Abstract: Radio Frequency (RF) Ethernet trunking may be provided. A networking system may comprise a first data pathway, a second data pathway, and a third data pathway. The first data pathway may be between a headend and a first node and may comprise a fiber optic channel using a first data transport protocol. The second data pathway may be between the first node and a second node and may comprise a first coaxial cable channel using the first data transport protocol over a first radio frequency spectrum. The third data pathway may be between the second node and a third node and may comprise a second coaxial cable channel using the first data transport protocol over the first radio frequency spectrum. The second data pathway and the third data pathway may comprise a data trunk using the first data transport protocol for data to and from the first node.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: September 8, 2020
    Assignee: Cisco Technology, Inc.
    Inventor: John T. Chapman
  • Patent number: 10771381
    Abstract: A receiving node receives a virtual LDP initialization (vInit) message from a first node, where the vInit message comprises a request to establish a vLDP session between a requesting node and a target node. If the receiving node does not own a destination address of the vInit message, the receiving node is determined to be a relay node. The relay node inserts a relay label into the vInit message, where the relay label is an outgoing label that the relay node uses to reach the first node, and forwards the vInit message toward the destination address. If the receiving node owns the destination address, the receiving node is determined to be the target node, which extracts a stack of relay labels from the vInit message. The relay labels are used to define a return path to the requesting node for messages transmitted over the vLDP session.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: September 8, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Ijsbrand Wijnands, Nagendra Kumar
  • Patent number: 10771531
    Abstract: In one embodiment, a device in a network receives a path computation agent configured to determine a path in the network that satisfies an objective function. The device executes the path computation agent to update state information regarding the network maintained by the path computation agent. The device selects a neighbor of the device in the network to execute the path computation agent based on the updated state information regarding the network. The device instructs the selected neighbor to execute the path computation agent with the updated state information regarding the network. The device unloads the path computation agent from the device after selecting the neighbor of the device to execute the path computation agent.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: September 8, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Eric Levy-Abegnoli, Pascal Thubert, Patrick Wetterwald, Jean-Philippe Vasseur
  • Patent number: 10771476
    Abstract: In one embodiment, an elimination point device in a network obtains a master secret from a network controller. The elimination point device assesses, using the master secret, whether an incoming packet received by the elimination point device from a redundant path between the elimination point device and a replication point device in the network includes a valid message integrity check (MIC). The elimination point device determines whether the incoming packet was injected maliciously into the redundant path, based on the assessment of the incoming packet. The elimination point device initiates performance of a mitigation action in the network, when the elimination point device determines that the incoming packet was injected maliciously into the redundant path.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: September 8, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Pascal Thubert, Patrick Wetterwald, Eric Levy-Abegnoli, Jean-Philippe Vasseur
  • Patent number: 10771488
    Abstract: In one embodiment, a device receives sensor data from a plurality of nodes in a computer network. The device uses the sensor data and a graph that represents a topology of the nodes in the network as input to a graph convolutional neural network. The device provides an output of the graph convolutional neural network as input to a convolutional long short-term memory recurrent neural network. The device detects an anomaly in the computer network by comparing a reconstruction error associated with an output of the convolutional long short-term memory recurrent neural network to a defined threshold. The device initiates a mitigation action in the computer network for the detected anomaly.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: September 8, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Saurabh Verma, Manjula Shivanna, Gyana Ranjan Dash, Antonio Nucci
  • Patent number: 10764076
    Abstract: Functionality for creating a bit routing table for use in a bit-indexed explicit replication (“BIER”) environment in disclosed herein. In one embodiment, this functionality includes receiving information from a host, and determining whether the information comprises a MAC address that is a bit-indexed explicit replication (“BIER”) MAC address. In response to determining that the information comprises a BIER MAC address, this functionality creates an entry corresponding to the MAC address in a bit routing table. This functionality also analyzes the information to determine a bit position that is associated with the host, and also determines a port via which the host is reachable. The functionality updates the bit routing table by storing information identifying the bit position and the port in the entry, such that the bit position and the port both correspond to the MAC address. This functionality can be used to route packets in a BIER environment.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: September 1, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Ijsbrand Wijnands, Gregory J. Shepherd, Nagendra Kumar Nainar
  • Patent number: 10761010
    Abstract: According to one aspect, an apparatus includes a first printed circuit board (PCB), the first PCB including a first interface, and a corrosion sensor assembly. The corrosion sensor assembly including a second interface arranged to be coupled to the first interface, the corrosion sensor assembly further including a signal trace field and a plurality of components, wherein the signal trace field and the plurality of components are arranged to provide an indication of whether the apparatus is in an environment that is corrosive.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: September 1, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Joel Goergen, Robert Gregory Twiss, Elizabeth Kochuparambil
  • Patent number: 10764376
    Abstract: In one embodiment, a method comprises obtaining, by a first network element comprising processing logic, notification of a plurality of events associated with a plurality of communication sessions, wherein the events include at least one of a mid-session event or an end-session event, wherein the plurality of events are communicated to a routing agent using a first communication protocol by a plurality of second network elements; receiving, by the first network element, a request via a second communication protocol for a first communication session to be established for a client computing device; selecting, by the first network element, one or more network elements from the second network elements for the communication session based on the at least one of a mid-session or an end-session event; and communicating, by the first network element, identification information of the one or more network elements selected for use in the first communication session.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: September 1, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Timothy P. Stammers, Suraj Sharad Mody, Robert Glenn Smith
  • Patent number: 10764146
    Abstract: An apparatus and method is disclosed for segment routing (SR) over label distribution protocol (LDP). In one embodiment, the method includes a node receiving a packet with an attached segment ID. In response, the node may attach a label to the packet. Thereafter, the node may forward the packet with the attached label and segment ID to another node via a label switched path (LSP).
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: September 1, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Ahmed R. Bashandy, Clarence Filsfils, David D. Ward
  • Patent number: 10764114
    Abstract: One embodiment is a method and includes receiving at a termination element of a first network a bandwidth report (“BWR”), in which the BWR includes information regarding a data transmission opportunity over a second network for at least one endpoint data; scheduling a first network transmission opportunity for the at least one endpoint data using information derived from the received BWR; and receiving from a 5 first network forwarding device the at least one endpoint data in accordance with the scheduled first network transmission opportunity.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: September 1, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: John T. Chapman, Jennifer Andreoli-Fang
  • Patent number: 10764900
    Abstract: The aspects include a method or system that identifies, by an access point (AP), an idle window in a fast locate scan interval. The AP can schedule a Block Acknowledgement Request (BAR) for an idle Station (STA) in the idle window. The AP may then transmit the BAR in the idle window to the idle STA. In response to the BAR, the AP can receive a Block Acknowledgement (BA). The AP may then determine a characteristic about the BA, and, based at least on the characteristic, determine a location of the idle STA.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: September 1, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Guru Gopalakrishnan, Hongbo Liu
  • Patent number: 10762113
    Abstract: In one embodiment, a method of processing a natural language input using a conversational knowledge graph in a virtual assistant is disclosed. The method includes receiving a natural language query from a user; translating the natural language query received from the user into corresponding intents; retrieving conversational knowledge context information based on the intents; using the retrieved conversational knowledge context information to customize back-end service calls to downstream applications; receiving a result of the customized back-end service calls; sending the result of the customized back-end service calls in a response to the natural language understanding system; translating the response from the fulfillment service system into a natural language response; and providing the natural language translated response to the user.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: September 1, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Kui Jia, Harish Doddala
  • Patent number: 10764310
    Abstract: In one embodiment, a device in a network receives anomaly data regarding an anomaly detected by a machine learning-based anomaly detection mechanism of a first node in the network. The device matches the anomaly data to threat intelligence feed data from one or more threat intelligence services. The device determines whether to provide threat intelligence feedback to the first node based on the matched threat intelligence feed data and one or more policy rules. The device provides threat intelligence feedback to the first node regarding the matched threat intelligence feed data, in response to determining that the device should provide threat intelligence feedback to the first node.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: September 1, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Jean-Philippe Vasseur, Sukrit Dasgupta, Grégory Mermoud
  • Publication number: 20200275464
    Abstract: One embodiment is a method and includes receiving at a termination element of a first network a bandwidth report (“BWR”), in which the BWR includes information regarding a data transmission opportunity over a second network for at least one endpoint data; scheduling a first network transmission opportunity for the at least one endpoint data using information derived from the received BWR; and receiving from a first network forwarding device the at least one endpoint data in accordance with the scheduled first network transmission opportunity.
    Type: Application
    Filed: May 11, 2020
    Publication date: August 27, 2020
    Applicant: Cisco Technology, Inc.
    Inventors: Jennifer Andreoli-Fang, John T. Chapman
  • Publication number: 20200274798
    Abstract: In one embodiment, segment routing (SR) network processing of packets is performed on packets having a segment identifier structure providing processing and/or memory efficiencies. Responsive to an identified particular segment routing policy, the particular router retrieves from memory a dynamic segment routing identifier portion of the particular SR policy that includes a SR node value and a SR function value. The SR function value identifies segment routing processing to be performed by a router in the network identified based on the SR node value. A segment routing discriminator is independently identified, possibly being a fixed value for all segment identifiers in the network. Before sending into the network, a complete segment identifier is added to the particular packet by combining the segment routing discriminator with the dynamic segment routing identifier portion. The particular packet including the complete segment identifier is sent into the network.
    Type: Application
    Filed: May 12, 2020
    Publication date: August 27, 2020
    Applicant: Cisco Technology, Inc., a California corporation
    Inventors: Clarence FILSFILS, Ahmed Refaat BASHANDY, Syed Kamran RAZA, Darren DUKES, Patrice BRISSETTE, Jisu BHATTACHARYA