公开(公告)号：US20250039039A1

公开(公告)日：2025-01-30

申请号：US18360260

申请日：2023-07-27

Applicant: Cisco Technology, Inc.

Inventor： George Allan Zimmerman ,  Chad M. Jones ,  Jason Dewayne Potterf ,  Joel Richard Goergen ,  Elizabeth Kochuparambil

IPC: H04L41/0659 ,  G08B5/22 ,  H04L12/12

Abstract: Presented herein are techniques for preventing an electrical arc upon disconnect of a network cable. A method can include monitoring a network cable connected to a device for faults at a remote location from a connector of the network cable by observing conditions on the network cable of power applied to the network cable, wherein the network cable is for sending data and power. The method can further include detecting a fault on the network cable, wherein the fault was introduced intentionally at the connector prior to disconnecting the connector from the device. The method can further include terminating power at the remote location that is sent over the network cable to prevent an electrical arc upon disconnecting the connector from the device.

公开(公告)号：US20250036793A1

公开(公告)日：2025-01-30

申请号：US18360254

申请日：2023-07-27

Applicant: Cisco Technology, Inc.

Inventor： Joel A. Obstfeld ,  Oliver James Bull ,  Louis Gwyn Samuel ,  Andrew Pletcher

IPC: G06F21/62 ,  H04L9/00 ,  H04L9/40

Abstract: A method, computer system, and computer program product are provided for obfuscating and storing data. A data object is obtained comprising data for storing to a plurality of distributed ledgers. Sequence information is obtained indicating a number of a plurality of data portions into which the data object is divided, and instructions for storing the plurality of data portions to the plurality of distributed ledgers. The plurality of data portions is generated by dividing the data object according to the number. The plurality of distributed ledgers are determined to store the plurality of data portions based on the instructions indicated by the sequence information. The plurality of data portions is stored across the plurality of distributed ledgers by accessing the plurality of distributed ledgers, wherein each data portion is stored to a particular distributed ledger of the plurality of distributed ledgers according to the instructions indicated by the sequence information.

公开(公告)号：US20250036549A1

公开(公告)日：2025-01-30

申请号：US18620350

申请日：2024-03-28

Applicant: Cisco Technology, Inc.

Inventor： John Michael Lake

IPC: G06F11/36

Abstract: A system and method are provided for detecting surprising/anomalous behavior in an upgrade to a program. A first prediction model is obtained to predict the behavior of a current version of the program. A second prediction model is trained using event sets representing a partially or totally ordered set of events realized from executing the upgrade version of the program. First (second) predictions are generated by applying a given event set to the first (second) prediction model. The first predictions are then compared with the second predictions to determine whether the respective prediction agree. When they do not agree, the deviation in the program behavior is signaled (e.g., to an engineer). The first and second predictions can be conditional probabilities of the given event set, and they can be compared using a comparison metric that includes a difference between negative logarithms of the respective predictions.

公开(公告)号：US20250035839A1

公开(公告)日：2025-01-30

申请号：US18361710

申请日：2023-07-28

Applicant: Cisco Technology, Inc.

Inventor： Jean-Luc J. TAMBASCO ,  Mark A. WEBSTER

IPC: G02B6/122 ,  G02B6/126

Abstract: Embodiments herein describe a PSR that includes a rotator with two layers that are separated by a dielectric layer. A first layer of the rotator includes a first waveguide formed from a lower refractive index material (e.g., SiN) while a second layer of the rotator includes a second waveguide formed from a higher refractive index material (e.g., Si). An optical signal, which can include two optical modes (e.g., TE and TM modes), is then introduced into the first layer where the TM mode is rotated. At the end of the rotator, the first waveguide (which is the same waveguide that received the optical signal) includes the optical signal which is now in the same optical mode. That is, one of the optical modes is rotated so that the light is the same type of optical mode (e.g., TE).

公开(公告)号：US12213276B2

公开(公告)日：2025-01-28

申请号：US17900147

申请日：2022-08-31

Applicant: Cisco Technology, Inc.

Inventor： Chejung Liu ,  Ravinandana Mysore Ramachandra Rao ,  Vic Hong Chia

IPC: H05K7/20 ,  F16K31/00 ,  G05D7/01 ,  G05D23/02

Abstract: A dynamic air baffle comprises: spaced-apart first and second plates configured to be positioned adjacent to at least one heat source to be cooled by an airflow; a heat insulator sandwiched between the first and second plates; and an air flap coupled to the first and second plates and extending into the airflow; wherein the first and second plates are configured such that a differential temperature between the first and second plates causes a differential expansion in lengths of the first and second plates, which rotates the air flap from a rest position, corresponding to when the differential temperature is zero, to a rotated position that is closer to a cooler plate and farther from a hotter plate of the first and second plates, such that the air flap directs more of the airflow to the hotter plate and less of the airflow to the cooler plate.

公开(公告)号：US12212493B2

公开(公告)日：2025-01-28

申请号：US17863879

申请日：2022-07-13

Applicant: Cisco Technology, Inc.

Inventor： Randall Benjamin Pittman ,  Alpesh S. Patel ,  John Michael Lake

IPC: H04L47/11 ,  H04L47/2416 ,  H04L47/35

Abstract: Techniques and architecture are described for inducing precise delays in a network device (network node) that has the capability to act on packets/traffic flows based on policy configurations of the network device and delays experienced by traffic in the network device. This capability may be used for testing and verification of the network device to verify that the network device meets the configured policies. Additionally, this capability may be utilized in an operational network to selectively induce delays and measure its impact for purposes such as, for example, planning, stress testing, resiliency, etc.

公开(公告)号：US20250031300A1

公开(公告)日：2025-01-23

申请号：US18451477

申请日：2023-08-17

Applicant: Cisco Technology, Inc.

Inventor： Mike Sapozhnikov ,  Amendra Koul ,  David Nozadze ,  Joel Richard Goergen ,  Upen Reddy Kareti ,  Sayed Ashraf Mamun

IPC: H05K1/02

Abstract: Provide for herein is an apparatus that includes multiple printed circuit board (PCB) layers and a via assembly. The via assembly includes a signal via extending through the multiple layers, and the signal via is configured to transmit a signal between the layers. The via assembly also includes a capacitive structure connected to the signal via to adjust an impedance of the via assembly along the via assembly. The capacitive structure is physically and electrically separate from other components of the PCB.

公开(公告)号：US20250031034A1

公开(公告)日：2025-01-23

申请号：US18779722

申请日：2024-07-22

Applicant: Cisco Technology, Inc.

Inventor： Mark Grayson ,  Juan Carlos Zuniga

IPC: H04W12/03 ,  H04W12/69

Abstract: Subscriber identity concealment from an access network provider may be provided. A computing device may receive first identity data associated with a client device. Then the first identity data associated with the client device may be encrypted using second identity data to create an encrypted version of the first identity data associated with the client device. The encrypted version of the first identity data associated with the client device may be provided to an access network.

公开(公告)号：US20250030703A1

公开(公告)日：2025-01-23

申请号：US18906331

申请日：2024-10-04

Applicant: Cisco Technology, Inc.

Inventor： Petr SOMOL ,  Martin KOPP ,  Jan KOHOUT ,  Jan BRABEC ,  Marc Rene Jacques Marie DUPONT ,  Cenek SKARDA ,  Lukas BAJER ,  Danila KHIKHLUKHA

IPC: H04L9/40 ,  G06N3/045 ,  G06N3/08

Abstract: In one embodiment, a device obtains input features for a neural network-based model. The device pre-defines a set of neurons of the model to represent known behaviors associated with the input features. The device constrains weights for a plurality of outputs of the model. The device trains the neural network-based model using the constrained weights for the plurality of outputs of the model and by excluding the pre-defined set of neurons from updates during the training.

公开(公告)号：US20250030657A1

公开(公告)日：2025-01-23

申请号：US18355074

申请日：2023-07-19

Applicant: Cisco Technology, Inc.

Inventor： Patrice Brissette ,  Jiri Chaloupka ,  Andy Karch

IPC: H04L61/103

Abstract: Systems, methods and computer-readable storage media are provided for performing Internet Protocol (IP) address resolution within a network through a control plane or network controller approach. A provider edge (PE) device receives an Address Resolution Protocol (ARP) request message from a locally connected customer edge (CE) device. The PE device transmits the ARP request message to other locally connected CE devices and generates an IP address resolution request message that includes the IP address of a destination CE device. The IP address resolution request message is transmitted to other PE devices within the network. The PE device receives remote adjacency information associated with the destination CE device and transmits an ARP reply message to the locally connected CE device.