公开(公告)号：US20240146643A1

公开(公告)日：2024-05-02

申请号：US17979640

申请日：2022-11-02

Applicant: Cisco Technology, Inc.

Inventor： David John Zacks ,  Nagendra Kumar Nainar ,  Madhan Sankaranarayanan ,  Jaganbabu Rajamanickam ,  Craig Thomas Hill ,  Cesar Obediente

IPC: H04L45/00 ,  H04L43/50 ,  H04L45/28

CPC classification number: H04L45/22 ,  H04L43/50 ,  H04L45/28

Abstract: Technologies for testing resiliency of a data network with real-world accuracy without affecting the flow of production data through the network. A method according to the technologies may include receiving a production data packet and determining a preferred data route toward a destination node for the production data packet based on a first routing information base, wherein the first routing information base includes a database where routes and route metadata are stored according to a routing protocol. The method may also include, receiving a test data packet, and determining an alternate data route toward the destination node for the test data packet based on a second routing information base, wherein the second routing information base simulates an error in the preferred data route. The method may include sending the production data packet to the preferred data route and sending the test data packet to the alternate data route.

公开(公告)号：US20240137420A1

公开(公告)日：2024-04-25

申请号：US17972208

申请日：2022-10-23

Applicant: Cisco Technology, Inc.

Inventor： Chidambaram Arunachalam ,  Nagendra Kumar Nainar ,  Gonzalo Salgueiro

IPC: H04L67/141 ,  H04L43/12

CPC classification number: H04L67/141 ,  H04L43/12

Abstract: In one embodiment, a device may obtain a media topology of nodes involved in a collaboration session. The device may cause each of a plurality of probes to be provisioned to a corresponding node of the nodes involved in the collaboration session to perform a test of a corresponding segment of the media topology, and each of the plurality of probes may be associated to a session identifier of the collaboration session. The device may determine observability information based on results of the plurality of probes for each segment of the media topology, and the results may include an indication of the session identifier. The device may correlate the observability information to the collaboration session based on the indication of the session identifier.

公开(公告)号：US20240118960A1

公开(公告)日：2024-04-11

申请号：US17963478

申请日：2022-10-11

Applicant: Cisco Technology, Inc.

Inventor： Chidambaram Arunachalam ,  Nagendra Kumar Nainar ,  Gonzalo Salgueiro

IPC: G06F11/07 ,  G06F3/16

CPC classification number: G06F11/0769 ,  G06F3/165 ,  G06F11/0736

Abstract: In one embodiment, an illustrative method herein may comprise: obtaining, by a device, a plurality of indications of errors experienced by a bot performing tasks, wherein each of the plurality of indications includes contextual information of a corresponding error; determining, by the device, correlated errors among the errors experienced by the bot; aggregating, by the device, contextual information of each of the correlated errors into aggregated contextual data; and providing, by the device, the aggregated contextual data with an error notification for a particular correlated error.

公开(公告)号：US11924090B2

公开(公告)日：2024-03-05

申请号：US18147158

申请日：2022-12-28

Applicant: Cisco Technology, Inc.

Inventor： Clarence Filsfils ,  Zafar Ali ,  Syed Kamran Raza ,  Ahmed Bashandy ,  Nagendra Kumar Nainar ,  Carlos M. Pignataro ,  Jaganbabu Rajamanickam ,  Rakesh Gandhi ,  Bhupendra Yadav ,  Faisal Iqbal

IPC: H04L45/00 ,  H04L41/0246 ,  H04L43/106 ,  H04L45/02 ,  H04L45/302 ,  H04L45/741 ,  H04L101/659

CPC classification number: H04L45/34 ,  H04L41/0246 ,  H04L43/106 ,  H04L45/02 ,  H04L45/20 ,  H04L45/304 ,  H04L45/741 ,  H04L2101/659

Abstract: In one embodiment, a service chain data packet is instrumented as it is communicated among network nodes in a network providing service-level and/or networking operations visibility. The service chain data packet includes a particular header identifying a service group defining one or more service functions, and is a data packet and not a probe packet. A network node adds networking and/or service-layer operations data to the particular service chain data packet, such as, but not limited to, in the particular header. Such networking operations data includes a performance metric or attribute related to the transport of the particular service chain packet in the network. Such service-layer operations data includes a performance metric or attribute related to the service-level processing of the particular service chain data packet in the network.

公开(公告)号：US20240054196A1

公开(公告)日：2024-02-15

申请号：US17886411

申请日：2022-08-11

Applicant: Cisco Technology, Inc.

Inventor： Nagendra Kumar Nainar ,  David John Zacks ,  Carlos M. Pignataro ,  Thomas Szigeti

IPC: G06F21/32 ,  G02B27/01 ,  G04G21/02

CPC classification number: G06F21/32 ,  G02B27/017 ,  G04G21/025 ,  G02B2027/0178

Abstract: This disclosure describes techniques for authentication using wearable devices. An example method includes determining that a user is wearing a secondary device; determining that the secondary device has detected a signal output by a primary device; determining that the user has confirmed an authentication factor output by the primary device; and enabling the user to access a secured resource via the primary device.

公开(公告)号：US20240048436A1

公开(公告)日：2024-02-08

申请号：US18380594

申请日：2023-10-16

Applicant: Cisco Technology, Inc.

Inventor： Nagendra Kumar Nainar ,  Jaganbabu Rajamanickam ,  David John Zacks ,  Carlos M. Pignataro ,  Madhan Sankaranarayanan ,  Cesar Obediente ,  Craig Thomas Hill

IPC: H04L41/0604 ,  H04L67/133 ,  H04L41/0631 ,  H04L41/0654 ,  H04L61/103 ,  H04L9/40

CPC classification number: H04L41/0627 ,  H04L67/133 ,  H04L41/0631 ,  H04L41/0654 ,  H04L61/103 ,  H04L63/101

Abstract: Methods and devices provide fault injection testing techniques in a production network environment without risking service outages for hosted computing services, by providing examples of a remote network controller configured to communicate with network devices of a network; a remote fault injection communication protocol configuring a remote network controller in communication with a network device to signal a failure injection; and a failure injection module configuring a network device to configure a network device processor to implement a failure injection signaled according to the remote failure injection communication protocol. The method includes a network controller transmitting a failure injection signal in a control plane packet over a network connection to a network device, and the network device creating a child process by executing, in a dedicated runtime environment, a copy of one or more processes impacted by a parsed failure type.

公开(公告)号：US11863450B1

公开(公告)日：2024-01-02

申请号：US18063291

申请日：2022-12-08

Applicant: Cisco Technology, Inc.

Inventor： Cesar Obediente ,  Craig Thomas Hill ,  Nagendra Kumar Nainar ,  David John Zacks ,  Jaganbabu Rajamanickam ,  Madhan Sankaranarayanan

IPC: H04L45/76

CPC classification number: H04L45/76

Abstract: A method comprises: at a network device configured to be connected to a network and having control and data planes, and interfaces configured for network operations in the network: upon receiving, from a controller, instructions to form a local twin of the network device that is a virtual replica of the network device to be used for test purposes, creating the local twin and configuring the local twin to include virtual control and data planes, and virtual interfaces, which are virtual replicas of, and operate independently from, the control and data planes, and the interfaces, of the network device, respectively; and hosting the local twin on physical resources of the network device such that the local twin is configured for virtual network operations on the network device that replicate, but are independent from, the network operations.

公开(公告)号：US11863388B1

公开(公告)日：2024-01-02

申请号：US18193935

申请日：2023-03-31

Applicant: Cisco Technology, Inc.

Inventor： Carlos Pignataro ,  Eric A. Voit ,  Nagendra Kumar Nainar ,  Marcelo Yannuzzi

IPC: H04L41/0833 ,  H04L45/48 ,  H04L41/12

CPC classification number: H04L41/0833 ,  H04L41/12 ,  H04L45/48

Abstract: Energy-aware configurations can be utilized to operate a network based on sustainability-related metrics. In many embodiments, a suitable device includes a processor, a memory commutatively coupled to the processor, a plurality of elements, a communication port, and an energy-aware topology logic configured to collect topology data from one or more network devices, wherein each of the one or more network devices include a plurality of elements. The energy-aware topology logic can receive power source data and power usage data related to plurality of elements and generate an element energy coefficient (EEC) for a plurality of elements. Subsequently, the energy-aware topology logic can also generate an energy-aware configuration for at least one of the one or more network devices, and then pass the generated energy-aware configuration to the at least one network device, wherein the energy-aware configuration is configured to steer traffic based on at least one sustainability-related metric.

公开(公告)号：US11818038B2

公开(公告)日：2023-11-14

申请号：US17592215

申请日：2022-02-03

Applicant: Cisco Technology, Inc.

Inventor： Nagendra Kumar Nainar ,  Carlos M. Pignataro ,  Zafar Ali

IPC: H04L45/50 ,  H04L45/02 ,  H04L43/50 ,  H04L43/10 ,  H04L45/42

CPC classification number: H04L45/50 ,  H04L43/10 ,  H04L43/50 ,  H04L45/02 ,  H04L45/42

Abstract: Techniques for initiator-based data-plane validation of segment routed, multiprotocol label switched (MPLS) networks are described herein. In examples, an initiating node may determine to validate data-plane connectivity associated with a network path of the MPLS network. The initiating node may store validation data in a local memory of the initiating node. In examples, the initiating node may send a probe message that includes a request for identification data associated with a terminating node. The terminating node may send a probe reply message that includes the identification data, as well as, in some examples, a code that instructs the initiating node to perform validation. In examples, the initiating node may use the validation data stored in memory to compare to the identification data received from the terminating node to validate data-plane connectivity. In some examples, the initiating node may indicate a positive or negative response after performing the validation.

公开(公告)号：US11811622B2

公开(公告)日：2023-11-07

申请号：US17463807

申请日：2021-09-01

Applicant: Cisco Technology, Inc.

Inventor： Nagendra Kumar Nainar ,  Carlos M. Pignataro ,  David John Zacks

IPC: H04L41/5009 ,  H04L41/5025

CPC classification number: H04L41/5009 ,  H04L41/5025

Abstract: Aggregation of cross domain service level indications provide an estimate of available end to end error budget within a service chain of a network system. In some embodiments, service level indications are obtained from a plurality of sub-domains, and aggregated to determine an end to end reliability score. The end to end reliability score is then distributed one or more of the sub-domains. The sub-domains then consider whether to implement a change based on local service level indications as well as the end to end reliability score. In other embodiments, a sub-domain requests approval to implement a change from an error manager. The error manager consults the end to end reliability score to determine whether adequate margin exists in the service chain to allow the change to occur, while still meeting service level objectives of the service chain. The error manager conditionally approves the request based on the determination.