公开(公告)号：US20230198738A1

公开(公告)日：2023-06-22

申请号：US17558313

申请日：2021-12-21

Applicant: Cisco Technology, Inc.

Inventor： Sreejith Avikkal ,  Nancy Patricia Cam-Winget ,  Lizbeth Berenice Guerra Martinez ,  Natasha Wong ,  Jessica Lynne Poole

IPC: H04L7/10

CPC classification number: H04L7/10 ,  H04L63/0876

Abstract: In one embodiment, methods for monitoring devices within a network by a controller are described. The method may include receiving a first request from a first device to authenticate a role of the first device as a grandmaster in a precision time protocol (PTP). Additionally, the method may include granting the first request designating the role of the first device as the grandmaster. The method may further include receiving a second request from a second device to authenticate that a clock announce message is from an authorized grandmaster. Additionally, the method may include determining whether the first device is authorized to send the clock announce message to the second device and, based on the determining, sending a message granting or denying permission for the first device to sync with the second device.

公开(公告)号：US20250088346A1

公开(公告)日：2025-03-13

申请号：US18958309

申请日：2024-11-25

Applicant: Cisco Technology, Inc.

Inventor： Sreejith Avikkal ,  Nancy Patricia Cam-Winget ,  Lizbeth Berenice Guerra Martinez ,  Natasha Wong ,  Jessica Lynne Poole

IPC: H04L7/10 ,  H04L9/32 ,  H04L9/40

Abstract: In one embodiment, methods for monitoring devices within a network by a controller are described. The method may include receiving a first request from a first device to authenticate a role of the first device as a grandmaster in a precision time protocol (PTP). Additionally, the method may include granting the first request designating the role of the first device as the grandmaster. The method may further include receiving a second request from a second device to authenticate that a clock announce message is from an authorized grandmaster. Additionally, the method may include determining whether the first device is authorized to send the clock announce message to the second device and, based on the determining, sending a message granting or denying permission for the first device to sync with the second device.

公开(公告)号：US12192316B2

公开(公告)日：2025-01-07

申请号：US17558313

申请日：2021-12-21

Applicant: Cisco Technology, Inc.

Inventor： Sreejith Avikkal ,  Nancy Patricia Cam-Winget ,  Lizbeth Berenice Guerra Martinez ,  Natasha Wong ,  Jessica Lynne Poole

IPC: H04L9/40 ,  H04L7/10 ,  H04L9/32

Abstract: In one embodiment, methods for monitoring devices within a network by a controller are described. The method may include receiving a first request from a first device to authenticate a role of the first device as a grandmaster in a precision time protocol (PTP). Additionally, the method may include granting the first request designating the role of the first device as the grandmaster. The method may further include receiving a second request from a second device to authenticate that a clock announce message is from an authorized grandmaster. Additionally, the method may include determining whether the first device is authorized to send the clock announce message to the second device and, based on the determining, sending a message granting or denying permission for the first device to sync with the second device.