Patents Assigned to Cisco Technology
  • Publication number: 20200274577
    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: Application
    Filed: February 21, 2019
    Publication date: August 27, 2020
    Applicant: Cisco Technology, Inc.
    Inventors: Hang Jin, John T. Chapman
  • Patent number: 10757610
    Abstract: In an example, a wireless communication system and apparatuses thereof are described. In an example long-term evolution (LTE) network, a first base station hands over a connection to a second base station. The first base station may be a (femto) home eNodeB (HeNB) or (macro) eNodeB. The second base station may also be a HeNB or eNodeB connected to a different gateway. The first base station may send “Handover Request” on an X2 connection, identifying the gateway that the second base station is connected to as the correct gateway. After sending a “Handover Request Acknowledgement,” the second base station correctly establishes a tunnel to a connected gateway device.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: August 25, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Takahito Yoshizawa, Indermeet Singh Gandhi, Swaminathan A. Anantha, Yuyong Zhang
  • Patent number: 10757647
    Abstract: In one embodiment, a supervisory device in a network forms a virtual access point (VAP) for a node in the network. A plurality of access points (APs) in the network are mapped to the VAP as part of a VAP mapping and the node treats the APs in the VAP mapping as a single AP for purposes of communicating with the network. The supervisory device determines a traffic type of traffic associated with the node. The supervisory device assigns the node to a selected wireless channel based in part on the traffic type of the traffic associated with the node. The supervisory device controls the VAP to use the channel assigned to the node.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: August 25, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Pascal Thubert, Jean-Philippe Vasseur, Patrick Wetterwald, Eric Levy-Abegnoli
  • Patent number: 10756813
    Abstract: Broadband subscriber switchover may be provided. First, a first gateway device may receive a first failure message from a first ring device. The first gateway device may be designated as an access fault detection agent among a plurality of gateway devices. Next, the first gateway device may receive a second failure message from a second ring device. The second failure message may be received via a second gateway device. The first ring device and the second ring device may be in an open-ring. Then the first gateway device may determine that the first ring device has been cut off from the second gateway device based upon the first failure message and the second failure message. The second gateway device may be a master device for the first ring device. The master device for the first ring device may then be switched from the second gateway device to the first gateway device.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: August 25, 2020
    Assignee: Cisco Technology, Inc.
    Inventor: Narendiran Rajaram
  • Patent number: 10757121
    Abstract: In one embodiment, a device in a network performs anomaly detection functions using a machine learning-based anomaly detector to detect anomalous traffic in the network. The device identifies an ability of one or more nodes in the network to perform at least one of the anomaly detection functions. The device selects a particular one of the anomaly detection functions to offload to a particular one of the nodes, based on the ability of the particular node to perform the particular anomaly detection function. The device instructs the particular node to perform the selected anomaly detection function.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: August 25, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Sukrit Dasgupta, Jean-Philippe Vasseur, Andrea Di Pietro
  • Patent number: 10756951
    Abstract: Techniques for use in network incident identification are described. In response to an occurrence of an unknown network incident, a plurality of log messages (e.g. syslog messages) are received from a plurality of network components in one or more networks. In one illustrative example, a plurality of relationships between interfaces and events are derived from the received log messages and characterized as a plurality of graphical component relationships. One or more groups of connected components are determined from the graphical component relationships and network component connection data which indicate interface relationships of the network components. Here, groups of connected components may be logically joined based on the network component connection data indicating one or more interface relationships.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: August 25, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Parthibhan Paramaguru, Prashant Anand, Vasudevan Visvanathan, Sundar Ramakrishnan, Dharmarajan Subramanian, Rohit Kumar Gupta, Abhishek Chaudhary
  • Patent number: 10757231
    Abstract: In one embodiment, a third-party client network access device sends Internet Protocol (IP) encapsulating packets with a predetermined destination address of a node of the network client service provider (NCSP), with these IP encapsulating packets encapsulating original data packets. These IP encapsulating packets are communicated through the ISP network being used by the NCSP in providing its network services. The predetermined destination address, which is typically also a segment identifier, causes network service processing (e.g., according to a corresponding segment routing function) of the received packet by the node of the NCSP. This processing typically includes creating a segment routing packet encapsulating the original packet (extracted from the received IP encapsulating packet) with its segment list(s) being populated with segment identifier(s) according to a current NCSP segment routing policy reflective of a sequence of forwarding and service chaining operations of the NCSP service offering.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: August 25, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Clarence Filsfils, Francois Clad, Pablo Camarillo Garvia
  • Patent number: 10757067
    Abstract: A method and apparatus for delivering requested content over a network is described. The method includes receiving, by a first network node, a request from a second network node for the requested content, the request comprising an IPv6 address associated with the requested content. A longest prefix match is then performed between the IPv6 address associated with the requested content and IPv6 addresses associated with content available at the first network node. In the event that the longest prefix match does not result in an exact match between the IPv6 address associated with the requested content and any of the IPv6 addresses associated with content available at the first network node, the request is routed towards a content variant suitable for transcoding to the requested content, the content variant being stored at the first network node.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: August 25, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Andre Jean-Marie Surcouf, William Mark Townsley
  • Patent number: 10757017
    Abstract: Embodiments of the present disclosure relate to assisting forwarding of multicast traffic over Ethernet Virtual Private Network (EVPN) from a multicast source to a host multi-homed to multiple provider edge (PE) devices. Embodiments are based on the inclusion of an Ethernet Segment Identification (ESI) to EVPN type-6 routes advertised by PE devices which received a multicast Join message. Other PE devices receiving such routes are able to determine whether they belong to the ES identified by the ESI and to determine whether they are designated forwarders (DFs) for the host. Furthermore, PE devices which are the DFs are configured to re-originate the EVPN type-6 routes, i.e. re-send the advertisements, indicating themselves as DFs. This ensures that a remote PE device associated with the multicast source will also send multicast traffic to such DF PE devices, which, in turn, would allow the multicast traffic to successfully reach the host.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: August 25, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Mitesh Mukesh Kanjariya, Ashutosh Gupta, Manoj Kumar Pandey
  • Patent number: 10757240
    Abstract: In one example, a first headset establishes a connection with a second headset that is associated with a target participant. The first headset obtains, via the connection, a first audio signal corresponding to speech of the target participant. Based on the first audio signal, one or more parameters associated with a position or a movement of a head of a user of the first headset, one or more head-related transfer functions associated with a shape of the head of the user, and a layout of the environment of the first headset, the first headset modifies the first audio signal to produce a first modified audio signal that corresponds to the speech of the target participant that would be present at the head of the user in absence of the first headset and the noise generated in the environment.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: August 25, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Knut Inge Hvidsten, Espen Moberg
  • Patent number: 10757714
    Abstract: In one embodiment, a device receives data indicative of a routing topology of a network. The network includes a root node and each node in the network has an associated network depth relative to the root node in the routing topology. The device assigns the nodes in the network to timeslots of a channel-hopping communication schedule in order of their associated network depths. The device assigns transmit and receive actions to the timeslots of the communication schedule for a particular time such that parent-to-child and child-to-parent communications alternate with network depth in the timeslots. The device sends the communication schedule with the node and action assignments to one or more of the nodes in the network.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: August 25, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Pascal Thubert, Huimin She, Feiliang Wang
  • Patent number: 10757073
    Abstract: Presented herein are techniques for enabling delegated access control of an enterprise network. In particular, data representing a trust chain formed between a local domain and a remote domain is stored in an identity management system. The local domain has an associated secure enterprise computing network and wherein the trust chain identifies one or more outside entities associated with the remote domain that are authorized to access the secure enterprise computing network. The identity management system receives a request for access to the secure enterprise computing network by a first outside entity of the one or more outside entities associated with the remote domain. Access by the outside entity to the secure enterprise computing network is controlled/determined based on an analysis of the trust chain.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: August 25, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: David C White, Jr., Jay K. Johnston, Rama Darbha, Magnus Mortensen, Carlos M. Pignataro
  • Patent number: 10755575
    Abstract: In one embodiment, a first vehicle makes, using a first machine learning-based model, a determination that raw image data captured by the first vehicle does not indicate the presence of a driving hazard. The first vehicle sends a hazard assessment request to a second vehicle in communication proximity of the first vehicle that includes the raw image data. The first vehicle receives a hazard detection response from the second vehicle that indicates a driving hazard identified by the second vehicle by applying a second machine learning-based model to the raw image data included in the hazard assessment request. The first vehicle adjusts a path of travel of the first vehicle to avoid the driving hazard identified by the second vehicle.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: August 25, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Jay Kemper Johnston, David C. White, Jr., Magnus Mortensen
  • Patent number: 10754698
    Abstract: Techniques for virtual workload deployment based on computing resource hardware load and associated network hardware load. For each of a plurality of computing resources within one or more data centers onto which a virtual workload can be deployed, a computing resource hardware load of the respective computing resource is determined. Network topology information is maintained for at least one network fabric of the one or more data centers, and an associated network hardware load of a network device communicatively connected to the respective computing resource is determined. Embodiments automatically select one or more computing resources. The virtual workload is deployed onto the automatically selected one or more computing resources.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: August 25, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Padmanabhan Krishnan, Rajesh Babu Nataraja, Shyam Kapadia, Nader Lahouti, Viral Rajeshbhai Barot, Jay Ajaykumar Gheewala
  • Publication number: 20200267054
    Abstract: Determining the importance of network devices based on a discovered topology, managed endpoints, and activity may be provided. First, topology data may be received corresponding to a network comprising a plurality of devices. Then, a topology matrix may be created representing the topology data. Next, a stationary matrix may be determined from the topology matrix. The stationary matrix may indicate a relative importance of each of the plurality of devices within the network. A health score may then be determined for at least one of the plurality of devices based on the relative importance of the at least one of the plurality of devices. The health score may be determined using the stationary matrix.
    Type: Application
    Filed: February 20, 2019
    Publication date: August 20, 2020
    Applicant: Cisco Technology, Inc.
    Inventors: Sajjit Thampy, Zachariah Cherian
  • Patent number: 10749790
    Abstract: In one embodiment, a local content hub device in a network receives content for distribution to a plurality of nodes in the network. The content is sent to the local content hub via a wide area network (WAN) using bit index explicit replication (BIER) messaging. The local content hub device caches the content and multicasts the cached content to the plurality of nodes in the network. The local content device determines that at least one of the plurality of nodes in the network did not receive the multicast content. The local content device retransmits the content to at least one of the plurality of nodes in the network that did not receive the multicast content.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: August 18, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Kyle Andrew Donald Mestery, Ian Wells, Gregory Shepherd
  • Patent number: 10749746
    Abstract: In one embodiment, a supervisory device in a network assigns different access points in the network to different access point groupings. Each of the different access point groupings uses a different network path to communicate with a given endpoint in the network. The supervisory device selects at least one of the access points in each of the different access point groupings for mapping to a virtual access point (VAP) for a node in the network as part of a VAP mapping. The supervisory device instructs the selected access points to form a VAP for the node. The node treats the access points in the VAP mapping as a single access point for purposes of communicating with the network.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: August 18, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Pascal Thubert, Jean-Phillippe Vasseur, Patrick Wetterwald, ERic Levy-Abegnoli
  • Patent number: 10749768
    Abstract: In one embodiment, a network assurance service receives a first set of telemetry data captured in a first network monitored by the network assurance service. The network assurance service computes, for each of a plurality of other networks monitored by the service, a similarity score between the first set of telemetry data and a set of telemetry data captured in that other network. The service selects a machine learning-based anomaly detector trained using a particular one of the sets of telemetry data captured in one of the plurality of other networks, based on the computed similarity score between the first set of telemetry data and the particular set of telemetry data captured in one of the plurality of other networks. The service uses the selected anomaly detector to assess telemetry data from the first network, until the service has received a threshold amount of telemetry data for the first network.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: August 18, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Sharon Shoshana Wulff, Jean-Philippe Vasseur, Grégory Mermoud
  • Patent number: 10749710
    Abstract: In one embodiment, a service function forwarder (SFF) analyzes pre-service state and post-service state of an original packet to determine whether to initiate and perform service offload or service bypass. A service function forwarder (SFF) receives a particular packet having a service function chain (SFC) encapsulation of the original packet, the SFC encapsulation identifying a particular service function path (SFP) designating a particular service function (SF). The SFF extracts pre-service state of the original packet, typically adding it to the particular packet in an In-Situ Operations, Administration, and Maintenance (IOAM) data field (or alternatively storing locally) before sending the particular packet to the particular SF. The SFF receives the particular packet after the SF applies the particular network service.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: August 18, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Carlos M. Pignataro, Frank Brockners, Shwetha Subray Bhandari, Nagendra Kumar Nainar
  • Patent number: 10749799
    Abstract: In accordance with various embodiments, a method is performed including receiving, at a first node associated with a first instance identifier, a packet from a first host addressed to a second host. The method includes sending, from the first node to the second node, the packet. The method includes receiving, from the second node, a solicit map-request for the second host including the first instance identifier of the first node and the second instance identifier of the second node for the second host. The method includes sending, in response to receiving the solicit map-request for the second host, a map-request for the second host. The method includes receiving, in response to sending the map-request for the second host, a map-reply indicating a third node associated with the second instance identifier. The method includes sending, from the first node to the third node, the packet.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: August 18, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Prakash Chand Jain, Sanjay Kumar Hooda, Victor M. Moreno